./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:56:21,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:56:21,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:56:21,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:56:21,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:56:21,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:56:21,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:56:21,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:56:21,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:56:21,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:56:21,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:56:21,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:56:21,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:56:21,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:56:21,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:56:21,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:56:21,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:56:21,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:56:21,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:56:21,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:56:21,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:56:21,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:56:21,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:56:21,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:56:21,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:56:21,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:56:21,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:56:21,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:56:21,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:56:21,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:56:21,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:56:21,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:56:21,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:56:21,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:56:21,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:56:21,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:56:21,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:56:21,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:56:21,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:56:21,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:56:21,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:56:21,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:56:21,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:56:21,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:56:21,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:56:21,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:56:21,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:56:21,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:56:21,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:56:21,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:56:21,814 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:56:21,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:56:21,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:56:21,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:56:21,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:56:21,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:56:21,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:56:21,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:56:21,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:56:21,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:56:21,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:56:21,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:56:21,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:56:21,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:56:21,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:56:21,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:56:21,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:56:21,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:56:21,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:56:21,820 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:56:21,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:56:21,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:56:21,821 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_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-11-21 16:56:22,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:56:22,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:56:22,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:56:22,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:56:22,130 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:56:22,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-21 16:56:25,145 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:56:25,842 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:56:25,842 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-21 16:56:25,895 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/7ea301e36/742a6b2c3eb845bb8866e5cfbd0fcdfe/FLAGb8109b3f9 [2022-11-21 16:56:25,913 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/7ea301e36/742a6b2c3eb845bb8866e5cfbd0fcdfe [2022-11-21 16:56:25,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:56:25,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:56:25,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:56:25,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:56:25,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:56:25,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:25" (1/1) ... [2022-11-21 16:56:25,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269474f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:25, skipping insertion in model container [2022-11-21 16:56:25,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:25" (1/1) ... [2022-11-21 16:56:25,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:56:26,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:56:27,715 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:424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValueFromBinaryExpression(TypeSizes.java:656) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:632) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromIfThenElseExpression(TypeSizes.java:550) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:367) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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:1867) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:202) 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) [2022-11-21 16:56:27,728 INFO L158 Benchmark]: Toolchain (without parser) took 1805.34ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 89.8MB in the beginning and 114.1MB in the end (delta: -24.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-21 16:56:27,729 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:56:27,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1799.65ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 89.8MB in the beginning and 114.1MB in the end (delta: -24.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-21 16:56:27,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1799.65ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 89.8MB in the beginning and 114.1MB in the end (delta: -24.3MB). Peak memory consumption was 59.3MB. 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:424) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:56:30,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:56:30,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:56:30,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:56:30,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:56:30,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:56:30,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:56:30,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:56:30,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:56:30,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:56:30,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:56:30,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:56:30,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:56:30,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:56:30,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:56:30,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:56:30,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:56:30,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:56:30,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:56:30,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:56:30,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:56:30,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:56:30,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:56:30,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:56:30,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:56:30,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:56:30,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:56:30,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:56:30,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:56:30,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:56:30,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:56:30,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:56:30,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:56:30,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:56:30,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:56:30,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:56:30,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:56:30,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:56:30,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:56:30,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:56:30,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:56:30,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 16:56:30,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:56:30,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:56:30,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:56:30,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:56:30,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:56:30,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:56:30,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:56:30,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:56:30,606 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:56:30,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:56:30,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:56:30,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:56:30,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:56:30,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:56:30,608 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:56:30,609 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:56:30,609 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:56:30,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:56:30,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:56:30,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:56:30,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:56:30,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:56:30,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:56:30,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:56:30,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:56:30,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:56:30,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:56:30,611 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:56:30,612 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:56:30,612 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:56:30,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:56:30,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:56:30,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:56:30,613 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_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-11-21 16:56:31,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:56:31,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:56:31,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:56:31,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:56:31,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:56:31,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-21 16:56:34,325 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:56:35,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:56:35,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-21 16:56:35,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/8e5816bf5/2ac5a605de5441d2983e8dd73c73f0d1/FLAG80ac6b8f2 [2022-11-21 16:56:35,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/data/8e5816bf5/2ac5a605de5441d2983e8dd73c73f0d1 [2022-11-21 16:56:35,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:56:35,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:56:35,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:56:35,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:56:35,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:56:35,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:35" (1/1) ... [2022-11-21 16:56:35,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d66295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:35, skipping insertion in model container [2022-11-21 16:56:35,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:56:35" (1/1) ... [2022-11-21 16:56:35,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:56:35,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:56:37,336 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_abbb8838-8793-4b06-bd61-729945ebdd83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-21 16:56:37,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:56:37,455 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 16:56:37,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:56:37,831 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_abbb8838-8793-4b06-bd61-729945ebdd83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-21 16:56:37,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:56:37,918 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:56:38,401 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_abbb8838-8793-4b06-bd61-729945ebdd83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-11-21 16:56:38,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:56:38,652 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:56:38,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38 WrapperNode [2022-11-21 16:56:38,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:56:38,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:56:38,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:56:38,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:56:38,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:38,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:38,950 INFO L138 Inliner]: procedures = 277, calls = 1355, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3200 [2022-11-21 16:56:38,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:56:38,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:56:38,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:56:38,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:56:38,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:38,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:38,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:38,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,135 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:56:39,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:56:39,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:56:39,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:56:39,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (1/1) ... [2022-11-21 16:56:39,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:56:39,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:56:39,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:56:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:56:39,286 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-21 16:56:39,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-21 16:56:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-21 16:56:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-21 16:56:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-21 16:56:39,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-21 16:56:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 16:56:39,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 16:56:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-21 16:56:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 16:56:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 16:56:39,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 16:56:39,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-21 16:56:39,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-21 16:56:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:56:39,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:56:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 16:56:39,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 16:56:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-11-21 16:56:39,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-11-21 16:56:39,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 16:56:39,290 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 16:56:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 16:56:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 16:56:39,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:56:39,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:56:39,292 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-21 16:56:39,292 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-21 16:56:39,293 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-21 16:56:39,293 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-21 16:56:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 16:56:39,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 16:56:39,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:56:39,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:56:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-21 16:56:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-21 16:56:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-21 16:56:39,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-21 16:56:39,295 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-21 16:56:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-21 16:56:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 16:56:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 16:56:39,296 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-21 16:56:39,296 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-21 16:56:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-21 16:56:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-21 16:56:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-21 16:56:39,297 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-21 16:56:39,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:56:39,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:56:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-21 16:56:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-21 16:56:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 16:56:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 16:56:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 16:56:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 16:56:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-21 16:56:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-21 16:56:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-21 16:56:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-21 16:56:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-21 16:56:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-21 16:56:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:56:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 16:56:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 16:56:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-21 16:56:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-21 16:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-21 16:56:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-21 16:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:56:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-21 16:56:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-21 16:56:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 16:56:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 16:56:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 16:56:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 16:56:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-21 16:56:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-21 16:56:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-21 16:56:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-21 16:56:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-21 16:56:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-21 16:56:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-21 16:56:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-21 16:56:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-21 16:56:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 16:56:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-21 16:56:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:56:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:56:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:56:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-21 16:56:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:56:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-21 16:56:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-21 16:56:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-21 16:56:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-21 16:56:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-21 16:56:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-21 16:56:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 16:56:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 16:56:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 16:56:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 16:56:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-21 16:56:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-21 16:56:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 16:56:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 16:56:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-21 16:56:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-21 16:56:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-21 16:56:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-21 16:56:39,315 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-21 16:56:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-21 16:56:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-11-21 16:56:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-11-21 16:56:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 16:56:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 16:56:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 16:56:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 16:56:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 16:56:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 16:56:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 16:56:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 16:56:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 16:56:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 16:56:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 16:56:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 16:56:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-21 16:56:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-21 16:56:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 16:56:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 16:56:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 16:56:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 16:56:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-21 16:56:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-21 16:56:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-21 16:56:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-21 16:56:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 16:56:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-21 16:56:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-21 16:56:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-21 16:56:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:56:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:56:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-21 16:56:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-21 16:56:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 16:56:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 16:56:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-21 16:56:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-21 16:56:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:56:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-21 16:56:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-21 16:56:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 16:56:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 16:56:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-21 16:56:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-21 16:56:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:56:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 16:56:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 16:56:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:56:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-21 16:56:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-21 16:56:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 16:56:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 16:56:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-21 16:56:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-21 16:56:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-21 16:56:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-21 16:56:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-21 16:56:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-21 16:56:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 16:56:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 16:56:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-21 16:56:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-21 16:56:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-21 16:56:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-21 16:56:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-11-21 16:56:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 16:56:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 16:56:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-21 16:56:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-21 16:56:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-21 16:56:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-21 16:56:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-21 16:56:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-21 16:56:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-21 16:56:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:56:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:56:40,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:56:40,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:56:48,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:57:25,476 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:57:25,494 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:57:25,495 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:57:25,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:57:25 BoogieIcfgContainer [2022-11-21 16:57:25,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:57:25,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:57:25,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:57:25,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:57:25,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:56:35" (1/3) ... [2022-11-21 16:57:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bbe2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:57:25, skipping insertion in model container [2022-11-21 16:57:25,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:56:38" (2/3) ... [2022-11-21 16:57:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bbe2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:57:25, skipping insertion in model container [2022-11-21 16:57:25,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:57:25" (3/3) ... [2022-11-21 16:57:25,509 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-11-21 16:57:25,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:57:25,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:57:25,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:57:25,623 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;@2b0b6351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:57:25,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:57:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 1380 states, 934 states have (on average 1.2944325481798715) internal successors, (1209), 967 states have internal predecessors, (1209), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-11-21 16:57:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-21 16:57:25,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:25,662 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:25,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:25,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 866419922, now seen corresponding path program 1 times [2022-11-21 16:57:25,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:25,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499720302] [2022-11-21 16:57:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:25,690 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 [2022-11-21 16:57:25,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:25,697 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:25,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:27,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:57:27,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-21 16:57:27,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:27,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:27,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499720302] [2022-11-21 16:57:27,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499720302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:27,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:27,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:57:27,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686139015] [2022-11-21 16:57:27,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:27,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:57:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:57:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:57:27,218 INFO L87 Difference]: Start difference. First operand has 1380 states, 934 states have (on average 1.2944325481798715) internal successors, (1209), 967 states have internal predecessors, (1209), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:57:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:27,410 INFO L93 Difference]: Finished difference Result 2749 states and 3890 transitions. [2022-11-21 16:57:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:57:27,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2022-11-21 16:57:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:27,438 INFO L225 Difference]: With dead ends: 2749 [2022-11-21 16:57:27,438 INFO L226 Difference]: Without dead ends: 1353 [2022-11-21 16:57:27,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:57:27,456 INFO L413 NwaCegarLoop]: 1913 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:27,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:57:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-11-21 16:57:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1353. [2022-11-21 16:57:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 917 states have (on average 1.282442748091603) internal successors, (1176), 939 states have internal predecessors, (1176), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-21 16:57:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1883 transitions. [2022-11-21 16:57:27,606 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1883 transitions. Word has length 121 [2022-11-21 16:57:27,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:27,607 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1883 transitions. [2022-11-21 16:57:27,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:57:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1883 transitions. [2022-11-21 16:57:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-21 16:57:27,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:27,614 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:27,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:27,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:27,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:27,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1365599798, now seen corresponding path program 1 times [2022-11-21 16:57:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:27,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028899539] [2022-11-21 16:57:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:27,842 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 [2022-11-21 16:57:27,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:27,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:27,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:57:29,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-21 16:57:29,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:29,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:29,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028899539] [2022-11-21 16:57:29,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028899539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:29,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:29,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:57:29,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522041816] [2022-11-21 16:57:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:29,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:57:29,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:57:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:57:29,486 INFO L87 Difference]: Start difference. First operand 1353 states and 1883 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:29,765 INFO L93 Difference]: Finished difference Result 2698 states and 3755 transitions. [2022-11-21 16:57:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:57:29,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2022-11-21 16:57:29,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:29,779 INFO L225 Difference]: With dead ends: 2698 [2022-11-21 16:57:29,779 INFO L226 Difference]: Without dead ends: 1354 [2022-11-21 16:57:29,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:57:29,790 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 3 mSDsluCounter, 3757 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5638 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:29,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5638 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:57:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-11-21 16:57:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1354. [2022-11-21 16:57:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 918 states have (on average 1.2821350762527233) internal successors, (1177), 940 states have internal predecessors, (1177), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-21 16:57:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1884 transitions. [2022-11-21 16:57:29,880 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1884 transitions. Word has length 121 [2022-11-21 16:57:29,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:29,882 INFO L495 AbstractCegarLoop]: Abstraction has 1354 states and 1884 transitions. [2022-11-21 16:57:29,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:29,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1884 transitions. [2022-11-21 16:57:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-21 16:57:29,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:29,887 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:29,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:30,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:30,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:30,113 INFO L85 PathProgramCache]: Analyzing trace with hash -482689842, now seen corresponding path program 1 times [2022-11-21 16:57:30,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:30,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400902101] [2022-11-21 16:57:30,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:30,115 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 [2022-11-21 16:57:30,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:30,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:30,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:31,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:57:31,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:32,108 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-11-21 16:57:32,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:57:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-21 16:57:32,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:32,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400902101] [2022-11-21 16:57:32,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400902101] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:57:32,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:57:32,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 16:57:32,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284243974] [2022-11-21 16:57:32,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:57:32,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:57:32,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:32,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:57:32,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:57:32,897 INFO L87 Difference]: Start difference. First operand 1354 states and 1884 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:57:33,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:33,598 INFO L93 Difference]: Finished difference Result 2705 states and 3765 transitions. [2022-11-21 16:57:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:57:33,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2022-11-21 16:57:33,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:33,609 INFO L225 Difference]: With dead ends: 2705 [2022-11-21 16:57:33,609 INFO L226 Difference]: Without dead ends: 1357 [2022-11-21 16:57:33,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:57:33,617 INFO L413 NwaCegarLoop]: 1881 mSDtfsCounter, 16 mSDsluCounter, 7517 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9398 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:33,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9398 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:57:33,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-11-21 16:57:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2022-11-21 16:57:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 921 states have (on average 1.281216069489685) internal successors, (1180), 943 states have internal predecessors, (1180), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-11-21 16:57:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1887 transitions. [2022-11-21 16:57:33,686 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1887 transitions. Word has length 124 [2022-11-21 16:57:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:33,687 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1887 transitions. [2022-11-21 16:57:33,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:57:33,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1887 transitions. [2022-11-21 16:57:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-21 16:57:33,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:33,691 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:33,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:33,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:33,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:33,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2070948938, now seen corresponding path program 1 times [2022-11-21 16:57:33,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:33,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383501368] [2022-11-21 16:57:33,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:33,896 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 [2022-11-21 16:57:33,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:33,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:33,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:35,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:57:35,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:57:36,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:36,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:36,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383501368] [2022-11-21 16:57:36,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383501368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:36,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:36,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:57:36,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073053828] [2022-11-21 16:57:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:36,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:57:36,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:36,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:57:36,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:57:36,859 INFO L87 Difference]: Start difference. First operand 1357 states and 1887 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:37,485 INFO L93 Difference]: Finished difference Result 4030 states and 5634 transitions. [2022-11-21 16:57:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:57:37,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2022-11-21 16:57:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:37,509 INFO L225 Difference]: With dead ends: 4030 [2022-11-21 16:57:37,509 INFO L226 Difference]: Without dead ends: 2698 [2022-11-21 16:57:37,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:57:37,520 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 1847 mSDsluCounter, 6512 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 8847 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:37,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 8847 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:57:37,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-21 16:57:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2689. [2022-11-21 16:57:37,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 1825 states have (on average 1.2810958904109588) internal successors, (2338), 1869 states have internal predecessors, (2338), 701 states have call successors, (701), 163 states have call predecessors, (701), 162 states have return successors, (712), 700 states have call predecessors, (712), 700 states have call successors, (712) [2022-11-21 16:57:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 3751 transitions. [2022-11-21 16:57:37,720 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 3751 transitions. Word has length 129 [2022-11-21 16:57:37,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:37,722 INFO L495 AbstractCegarLoop]: Abstraction has 2689 states and 3751 transitions. [2022-11-21 16:57:37,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 3751 transitions. [2022-11-21 16:57:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-21 16:57:37,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:37,733 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:37,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:37,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:37,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:37,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash 496439990, now seen corresponding path program 2 times [2022-11-21 16:57:37,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:37,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165145466] [2022-11-21 16:57:37,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:57:37,951 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 [2022-11-21 16:57:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:37,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:37,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:38,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:57:38,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:57:38,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:57:38,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:57:40,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:40,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:40,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165145466] [2022-11-21 16:57:40,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165145466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:40,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:40,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:57:40,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042734349] [2022-11-21 16:57:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:40,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:57:40,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:57:40,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:57:40,210 INFO L87 Difference]: Start difference. First operand 2689 states and 3751 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:40,885 INFO L93 Difference]: Finished difference Result 8038 states and 11283 transitions. [2022-11-21 16:57:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:57:40,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 130 [2022-11-21 16:57:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:40,928 INFO L225 Difference]: With dead ends: 8038 [2022-11-21 16:57:40,929 INFO L226 Difference]: Without dead ends: 5374 [2022-11-21 16:57:40,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:57:40,956 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 1848 mSDsluCounter, 6336 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 8583 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:40,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 8583 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:57:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2022-11-21 16:57:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5359. [2022-11-21 16:57:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 3638 states have (on average 1.2806487080813633) internal successors, (4659), 3726 states have internal predecessors, (4659), 1395 states have call successors, (1395), 326 states have call predecessors, (1395), 325 states have return successors, (1448), 1394 states have call predecessors, (1448), 1394 states have call successors, (1448) [2022-11-21 16:57:41,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 7502 transitions. [2022-11-21 16:57:41,335 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 7502 transitions. Word has length 130 [2022-11-21 16:57:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:41,336 INFO L495 AbstractCegarLoop]: Abstraction has 5359 states and 7502 transitions. [2022-11-21 16:57:41,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 7502 transitions. [2022-11-21 16:57:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 16:57:41,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:41,340 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:41,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:41,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:41,563 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:41,564 INFO L85 PathProgramCache]: Analyzing trace with hash 899333113, now seen corresponding path program 1 times [2022-11-21 16:57:41,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:41,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343372407] [2022-11-21 16:57:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:41,565 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 [2022-11-21 16:57:41,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:41,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:41,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:43,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:57:43,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:57:44,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:44,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:44,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343372407] [2022-11-21 16:57:44,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343372407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:44,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:44,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:57:44,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592127233] [2022-11-21 16:57:44,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:44,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:57:44,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:44,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:57:44,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:57:44,207 INFO L87 Difference]: Start difference. First operand 5359 states and 7502 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:45,251 INFO L93 Difference]: Finished difference Result 16060 states and 22649 transitions. [2022-11-21 16:57:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:57:45,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2022-11-21 16:57:45,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:45,329 INFO L225 Difference]: With dead ends: 16060 [2022-11-21 16:57:45,330 INFO L226 Difference]: Without dead ends: 10726 [2022-11-21 16:57:45,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:57:45,365 INFO L413 NwaCegarLoop]: 2487 mSDtfsCounter, 1848 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 9305 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:45,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 9305 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:57:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-11-21 16:57:46,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 10659. [2022-11-21 16:57:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10659 states, 7230 states have (on average 1.2806362378976486) internal successors, (9259), 7418 states have internal predecessors, (9259), 2779 states have call successors, (2779), 650 states have call predecessors, (2779), 649 states have return successors, (2954), 2766 states have call predecessors, (2954), 2778 states have call successors, (2954) [2022-11-21 16:57:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10659 states to 10659 states and 14992 transitions. [2022-11-21 16:57:46,229 INFO L78 Accepts]: Start accepts. Automaton has 10659 states and 14992 transitions. Word has length 128 [2022-11-21 16:57:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:46,229 INFO L495 AbstractCegarLoop]: Abstraction has 10659 states and 14992 transitions. [2022-11-21 16:57:46,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 10659 states and 14992 transitions. [2022-11-21 16:57:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-21 16:57:46,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:46,235 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:46,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-21 16:57:46,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:46,450 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:46,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -308591001, now seen corresponding path program 1 times [2022-11-21 16:57:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:46,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16867194] [2022-11-21 16:57:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:46,452 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 [2022-11-21 16:57:46,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:46,455 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:46,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:48,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:57:48,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:57:49,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:49,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:49,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16867194] [2022-11-21 16:57:49,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16867194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:49,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:49,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:57:49,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204520495] [2022-11-21 16:57:49,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:49,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:57:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:49,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:57:49,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:57:49,410 INFO L87 Difference]: Start difference. First operand 10659 states and 14992 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:51,040 INFO L93 Difference]: Finished difference Result 31701 states and 44890 transitions. [2022-11-21 16:57:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:57:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 131 [2022-11-21 16:57:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:51,277 INFO L225 Difference]: With dead ends: 31701 [2022-11-21 16:57:51,278 INFO L226 Difference]: Without dead ends: 21067 [2022-11-21 16:57:51,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:57:51,339 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 1849 mSDsluCounter, 6312 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 8547 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:51,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 8547 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:57:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21067 states. [2022-11-21 16:57:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21067 to 20995. [2022-11-21 16:57:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20995 states, 14239 states have (on average 1.27881171430578) internal successors, (18209), 14599 states have internal predecessors, (18209), 5465 states have call successors, (5465), 1291 states have call predecessors, (5465), 1290 states have return successors, (5966), 5444 states have call predecessors, (5966), 5464 states have call successors, (5966) [2022-11-21 16:57:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20995 states to 20995 states and 29640 transitions. [2022-11-21 16:57:52,910 INFO L78 Accepts]: Start accepts. Automaton has 20995 states and 29640 transitions. Word has length 131 [2022-11-21 16:57:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:52,911 INFO L495 AbstractCegarLoop]: Abstraction has 20995 states and 29640 transitions. [2022-11-21 16:57:52,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:57:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 20995 states and 29640 transitions. [2022-11-21 16:57:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-21 16:57:52,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:52,918 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:52,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:53,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:57:53,141 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:53,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:53,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1526527107, now seen corresponding path program 1 times [2022-11-21 16:57:53,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:57:53,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153000557] [2022-11-21 16:57:53,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:53,143 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 [2022-11-21 16:57:53,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:57:53,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:57:53,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:57:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:57:54,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-21 16:57:56,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:57:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-21 16:57:57,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:57:57,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153000557] [2022-11-21 16:57:57,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153000557] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 16:57:57,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:57:57,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2022-11-21 16:57:57,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064405697] [2022-11-21 16:57:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:57,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 16:57:57,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:57:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 16:57:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:57:57,169 INFO L87 Difference]: Start difference. First operand 20995 states and 29640 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:15,839 INFO L93 Difference]: Finished difference Result 52767 states and 74857 transitions. [2022-11-21 16:58:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:58:15,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 141 [2022-11-21 16:58:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:16,037 INFO L225 Difference]: With dead ends: 52767 [2022-11-21 16:58:16,037 INFO L226 Difference]: Without dead ends: 31797 [2022-11-21 16:58:16,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:58:16,139 INFO L413 NwaCegarLoop]: 2986 mSDtfsCounter, 2308 mSDsluCounter, 13909 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 16895 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:58:16,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 16895 Invalid, 2587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2022-11-21 16:58:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31797 states. [2022-11-21 16:58:18,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31797 to 31456. [2022-11-21 16:58:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 21327 states have (on average 1.2788015192010127) internal successors, (27273), 21862 states have internal predecessors, (27273), 8202 states have call successors, (8202), 1920 states have call predecessors, (8202), 1926 states have return successors, (9009), 8177 states have call predecessors, (9009), 8201 states have call successors, (9009) [2022-11-21 16:58:18,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 44484 transitions. [2022-11-21 16:58:18,989 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 44484 transitions. Word has length 141 [2022-11-21 16:58:18,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:18,990 INFO L495 AbstractCegarLoop]: Abstraction has 31456 states and 44484 transitions. [2022-11-21 16:58:18,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:58:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 44484 transitions. [2022-11-21 16:58:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-21 16:58:18,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:18,997 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:19,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:58:19,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:58:19,213 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:19,213 INFO L85 PathProgramCache]: Analyzing trace with hash -239322131, now seen corresponding path program 1 times [2022-11-21 16:58:19,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:58:19,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836278452] [2022-11-21 16:58:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:19,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:58:19,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:58:19,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:58:19,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:58:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:21,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:58:21,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:22,604 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:58:22,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:58:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:58:23,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:58:23,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836278452] [2022-11-21 16:58:23,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836278452] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:58:23,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:58:23,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-21 16:58:23,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300907136] [2022-11-21 16:58:23,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:58:23,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:58:23,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:58:23,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:58:23,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:58:23,539 INFO L87 Difference]: Start difference. First operand 31456 states and 44484 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 16:59:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:04,927 INFO L93 Difference]: Finished difference Result 68283 states and 96617 transitions. [2022-11-21 16:59:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:59:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 142 [2022-11-21 16:59:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:05,158 INFO L225 Difference]: With dead ends: 68283 [2022-11-21 16:59:05,158 INFO L226 Difference]: Without dead ends: 36852 [2022-11-21 16:59:05,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-21 16:59:05,301 INFO L413 NwaCegarLoop]: 4039 mSDtfsCounter, 5915 mSDsluCounter, 23482 mSDsCounter, 0 mSdLazyCounter, 5474 mSolverCounterSat, 1859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 27521 SdHoareTripleChecker+Invalid, 7333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1859 IncrementalHoareTripleChecker+Valid, 5474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:05,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5929 Valid, 27521 Invalid, 7333 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1859 Valid, 5474 Invalid, 0 Unknown, 0 Unchecked, 36.3s Time] [2022-11-21 16:59:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36852 states. [2022-11-21 16:59:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36852 to 36569. [2022-11-21 16:59:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36569 states, 24789 states have (on average 1.2781879059260155) internal successors, (31685), 25412 states have internal predecessors, (31685), 9536 states have call successors, (9536), 2233 states have call predecessors, (9536), 2243 states have return successors, (10461), 9503 states have call predecessors, (10461), 9535 states have call successors, (10461) [2022-11-21 16:59:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36569 states to 36569 states and 51682 transitions. [2022-11-21 16:59:07,536 INFO L78 Accepts]: Start accepts. Automaton has 36569 states and 51682 transitions. Word has length 142 [2022-11-21 16:59:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:07,537 INFO L495 AbstractCegarLoop]: Abstraction has 36569 states and 51682 transitions. [2022-11-21 16:59:07,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 16:59:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 36569 states and 51682 transitions. [2022-11-21 16:59:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-21 16:59:07,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:07,547 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:07,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:59:07,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:59:07,761 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:07,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2061627108, now seen corresponding path program 1 times [2022-11-21 16:59:07,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:59:07,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881911175] [2022-11-21 16:59:07,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:07,763 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 [2022-11-21 16:59:07,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:59:07,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 16:59:07,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 16:59:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:09,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:59:09,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:59:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:59:10,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:59:11,708 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 16:59:11,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:59:11,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881911175] [2022-11-21 16:59:11,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881911175] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:59:11,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 16:59:11,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-21 16:59:11,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202279300] [2022-11-21 16:59:11,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 16:59:11,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:59:11,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:59:11,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:59:11,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:59:11,711 INFO L87 Difference]: Start difference. First operand 36569 states and 51682 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 16:59:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:59,157 INFO L93 Difference]: Finished difference Result 78421 states and 110880 transitions. [2022-11-21 16:59:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:59:59,158 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 143 [2022-11-21 16:59:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:59,367 INFO L225 Difference]: With dead ends: 78421 [2022-11-21 16:59:59,367 INFO L226 Difference]: Without dead ends: 41877 [2022-11-21 16:59:59,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-21 16:59:59,711 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 6210 mSDsluCounter, 23457 mSDsCounter, 0 mSdLazyCounter, 6573 mSolverCounterSat, 1933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6224 SdHoareTripleChecker+Valid, 27053 SdHoareTripleChecker+Invalid, 8506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1933 IncrementalHoareTripleChecker+Valid, 6573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:59,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6224 Valid, 27053 Invalid, 8506 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1933 Valid, 6573 Invalid, 0 Unknown, 0 Unchecked, 42.3s Time] [2022-11-21 16:59:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41877 states. [2022-11-21 17:00:01,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41877 to 41610. [2022-11-21 17:00:01,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41610 states, 28201 states have (on average 1.2777915676749052) internal successors, (36035), 28909 states have internal predecessors, (36035), 10851 states have call successors, (10851), 2545 states have call predecessors, (10851), 2557 states have return successors, (11884), 10811 states have call predecessors, (11884), 10850 states have call successors, (11884) [2022-11-21 17:00:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41610 states to 41610 states and 58770 transitions. [2022-11-21 17:00:01,933 INFO L78 Accepts]: Start accepts. Automaton has 41610 states and 58770 transitions. Word has length 143 [2022-11-21 17:00:01,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:01,934 INFO L495 AbstractCegarLoop]: Abstraction has 41610 states and 58770 transitions. [2022-11-21 17:00:01,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 17:00:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 41610 states and 58770 transitions. [2022-11-21 17:00:01,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-21 17:00:01,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:01,947 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:01,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:00:02,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:00:02,171 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:02,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1339092698, now seen corresponding path program 1 times [2022-11-21 17:00:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:00:02,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879940970] [2022-11-21 17:00:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:02,172 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 [2022-11-21 17:00:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:00:02,173 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:00:02,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:00:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:03,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 17:00:03,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 17:00:05,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-21 17:00:06,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:00:06,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879940970] [2022-11-21 17:00:06,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879940970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:06,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:00:06,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 11 [2022-11-21 17:00:06,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661552910] [2022-11-21 17:00:06,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:06,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 17:00:06,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:00:06,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 17:00:06,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:00:06,159 INFO L87 Difference]: Start difference. First operand 41610 states and 58770 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 17:00:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:45,296 INFO L93 Difference]: Finished difference Result 88459 states and 124985 transitions. [2022-11-21 17:00:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 17:00:45,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 144 [2022-11-21 17:00:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:45,498 INFO L225 Difference]: With dead ends: 88459 [2022-11-21 17:00:45,498 INFO L226 Difference]: Without dead ends: 46874 [2022-11-21 17:00:45,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2022-11-21 17:00:45,637 INFO L413 NwaCegarLoop]: 3599 mSDtfsCounter, 6203 mSDsluCounter, 21561 mSDsCounter, 0 mSdLazyCounter, 5217 mSolverCounterSat, 1934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6217 SdHoareTripleChecker+Valid, 25160 SdHoareTripleChecker+Invalid, 7151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1934 IncrementalHoareTripleChecker+Valid, 5217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:45,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6217 Valid, 25160 Invalid, 7151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1934 Valid, 5217 Invalid, 0 Unknown, 0 Unchecked, 33.8s Time] [2022-11-21 17:00:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46874 states. [2022-11-21 17:00:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46874 to 46618. [2022-11-21 17:00:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46618 states, 31590 states have (on average 1.2774928774928775) internal successors, (40356), 32382 states have internal predecessors, (40356), 12157 states have call successors, (12157), 2857 states have call predecessors, (12157), 2870 states have return successors, (13296), 12110 states have call predecessors, (13296), 12156 states have call successors, (13296) [2022-11-21 17:00:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46618 states to 46618 states and 65809 transitions. [2022-11-21 17:00:48,239 INFO L78 Accepts]: Start accepts. Automaton has 46618 states and 65809 transitions. Word has length 144 [2022-11-21 17:00:48,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:48,240 INFO L495 AbstractCegarLoop]: Abstraction has 46618 states and 65809 transitions. [2022-11-21 17:00:48,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (29), 4 states have call predecessors, (29), 5 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-21 17:00:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 46618 states and 65809 transitions. [2022-11-21 17:00:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-21 17:00:48,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:48,255 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:48,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:00:48,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:00:48,469 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:48,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1793458447, now seen corresponding path program 1 times [2022-11-21 17:00:48,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:00:48,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34885448] [2022-11-21 17:00:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:48,471 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 [2022-11-21 17:00:48,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:00:48,472 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:00:48,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:00:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:49,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 17:00:49,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:00:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-21 17:00:51,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:00:53,434 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-21 17:00:53,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:00:53,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34885448] [2022-11-21 17:00:53,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34885448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:00:53,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:00:53,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2022-11-21 17:00:53,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421158144] [2022-11-21 17:00:53,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:00:53,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 17:00:53,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:00:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 17:00:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:00:53,436 INFO L87 Difference]: Start difference. First operand 46618 states and 65809 transitions. Second operand has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-21 17:01:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:01:44,798 INFO L93 Difference]: Finished difference Result 123773 states and 175274 transitions. [2022-11-21 17:01:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-21 17:01:44,799 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 155 [2022-11-21 17:01:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:01:45,335 INFO L225 Difference]: With dead ends: 123773 [2022-11-21 17:01:45,335 INFO L226 Difference]: Without dead ends: 77180 [2022-11-21 17:01:45,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=333, Invalid=1389, Unknown=0, NotChecked=0, Total=1722 [2022-11-21 17:01:45,554 INFO L413 NwaCegarLoop]: 3826 mSDtfsCounter, 7348 mSDsluCounter, 26567 mSDsCounter, 0 mSdLazyCounter, 6868 mSolverCounterSat, 2729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7362 SdHoareTripleChecker+Valid, 30393 SdHoareTripleChecker+Invalid, 9597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2729 IncrementalHoareTripleChecker+Valid, 6868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:01:45,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7362 Valid, 30393 Invalid, 9597 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2729 Valid, 6868 Invalid, 0 Unknown, 0 Unchecked, 43.6s Time] [2022-11-21 17:01:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77180 states. [2022-11-21 17:01:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77180 to 71765. [2022-11-21 17:01:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71765 states, 48612 states have (on average 1.2761869497243479) internal successors, (62038), 49825 states have internal predecessors, (62038), 18696 states have call successors, (18696), 4427 states have call predecessors, (18696), 4456 states have return successors, (20395), 18624 states have call predecessors, (20395), 18695 states have call successors, (20395) [2022-11-21 17:01:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71765 states to 71765 states and 101129 transitions. [2022-11-21 17:01:50,623 INFO L78 Accepts]: Start accepts. Automaton has 71765 states and 101129 transitions. Word has length 155 [2022-11-21 17:01:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:01:50,623 INFO L495 AbstractCegarLoop]: Abstraction has 71765 states and 101129 transitions. [2022-11-21 17:01:50,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 13 states have internal predecessors, (88), 4 states have call successors, (31), 5 states have call predecessors, (31), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-21 17:01:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 71765 states and 101129 transitions. [2022-11-21 17:01:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-21 17:01:50,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:01:50,636 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:01:50,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-21 17:01:50,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:01:50,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:01:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:01:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 524014008, now seen corresponding path program 1 times [2022-11-21 17:01:50,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:01:50,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283229380] [2022-11-21 17:01:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:01:50,853 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 [2022-11-21 17:01:50,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:01:50,855 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:01:50,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abbb8838-8793-4b06-bd61-729945ebdd83/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:01:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:52,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:01:52,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:01:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-21 17:01:52,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:01:52,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:01:52,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283229380] [2022-11-21 17:01:52,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283229380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:01:52,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:01:52,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:01:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130495310] [2022-11-21 17:01:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:01:52,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:01:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:01:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:01:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:01:52,670 INFO L87 Difference]: Start difference. First operand 71765 states and 101129 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 17:02:01,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:02:01,382 INFO L93 Difference]: Finished difference Result 215021 states and 303741 transitions. [2022-11-21 17:02:01,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:02:01,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2022-11-21 17:02:01,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:02:02,297 INFO L225 Difference]: With dead ends: 215021 [2022-11-21 17:02:02,297 INFO L226 Difference]: Without dead ends: 143281 [2022-11-21 17:02:02,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:02:02,534 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 1861 mSDsluCounter, 1861 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:02:02,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 4123 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:02:02,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143281 states.