./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--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:07:48,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:07:48,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:07:48,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:07:48,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:07:48,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:07:48,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:07:48,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:07:48,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:07:48,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:07:48,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:07:48,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:07:48,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:07:48,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:07:48,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:07:48,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:07:48,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:07:48,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:07:48,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:07:48,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:07:48,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:07:48,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:07:48,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:07:48,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:07:48,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:07:48,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:07:48,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:07:48,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:07:48,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:07:48,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:07:48,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:07:48,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:07:48,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:07:48,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:07:48,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:07:48,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:07:48,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:07:48,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:07:48,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:07:48,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:07:48,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:07:48,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:07:48,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:07:48,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:07:48,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:07:48,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:07:48,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:07:48,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:07:48,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:07:48,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:07:48,729 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:07:48,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:07:48,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:07:48,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:07:48,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:07:48,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:07:48,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:07:48,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:07:48,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:07:48,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:07:48,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:07:48,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:07:48,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:07:48,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:07:48,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:07:48,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:07:48,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:07:48,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:07:48,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:07:48,735 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:07:48,735 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:07:48,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:07:48,735 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_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 [2022-11-20 12:07:49,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:07:49,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:07:49,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:07:49,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:07:49,122 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:07:49,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2022-11-20 12:07:52,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:07:53,132 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:07:53,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2022-11-20 12:07:53,208 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/ece681611/f9a4e7fa238444e0b8dcf1771b430e26/FLAG730d54a8c [2022-11-20 12:07:53,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/ece681611/f9a4e7fa238444e0b8dcf1771b430e26 [2022-11-20 12:07:53,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:07:53,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:07:53,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:07:53,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:07:53,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:07:53,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:53" (1/1) ... [2022-11-20 12:07:53,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e759786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:07:53, skipping insertion in model container [2022-11-20 12:07:53,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:07:53" (1/1) ... [2022-11-20 12:07:53,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:07:53,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:07:54,281 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 12:07:54,292 INFO L158 Benchmark]: Toolchain (without parser) took 1052.93ms. Allocated memory is still 151.0MB. Free memory was 102.0MB in the beginning and 93.8MB in the end (delta: 8.2MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2022-11-20 12:07:54,293 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:07:54,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.88ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 93.8MB in the end (delta: 7.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-11-20 12:07:54,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.88ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 93.8MB in the end (delta: 7.5MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:07:56,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:07:56,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:07:56,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:07:56,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:07:56,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:07:56,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:07:56,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:07:56,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:07:56,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:07:56,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:07:56,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:07:56,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:07:56,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:07:56,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:07:56,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:07:56,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:07:56,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:07:56,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:07:56,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:07:56,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:07:56,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:07:56,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:07:56,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:07:56,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:07:56,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:07:56,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:07:56,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:07:56,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:07:56,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:07:56,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:07:56,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:07:56,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:07:56,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:07:56,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:07:56,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:07:56,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:07:56,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:07:56,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:07:56,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:07:56,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:07:56,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:07:57,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:07:57,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:07:57,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:07:57,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:07:57,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:07:57,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:07:57,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:07:57,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:07:57,020 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:07:57,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:07:57,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:07:57,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:07:57,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:07:57,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:07:57,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:07:57,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:07:57,024 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:07:57,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:07:57,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:07:57,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:07:57,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:07:57,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:07:57,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:07:57,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:07:57,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:07:57,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:07:57,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:07:57,027 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:07:57,027 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:07:57,027 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:07:57,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:07:57,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:07:57,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:07:57,029 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_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063e80a6567f3b510ecc2efbcb0a8f49fa12a56c608116a0a2a3dc1d5e72e4c2 [2022-11-20 12:07:57,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:07:57,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:07:57,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:07:57,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:07:57,479 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:07:57,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2022-11-20 12:08:00,791 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:08:01,573 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:08:01,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2022-11-20 12:08:01,629 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/bd39c86b5/a885b988dc2b46ba8e8ddd56fcd394e4/FLAG93599cf1c [2022-11-20 12:08:01,645 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/data/bd39c86b5/a885b988dc2b46ba8e8ddd56fcd394e4 [2022-11-20 12:08:01,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:08:01,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:08:01,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:08:01,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:08:01,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:08:01,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:01" (1/1) ... [2022-11-20 12:08:01,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ddebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:01, skipping insertion in model container [2022-11-20 12:08:01,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:08:01" (1/1) ... [2022-11-20 12:08:01,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:08:01,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:08:06,043 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_f033ffad-ae53-4761-a0ed-ce84134b53b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2022-11-20 12:08:06,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:08:06,184 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:08:06,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:08:06,924 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_f033ffad-ae53-4761-a0ed-ce84134b53b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2022-11-20 12:08:06,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:08:06,981 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:08:07,898 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_f033ffad-ae53-4761-a0ed-ce84134b53b0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i[478905,478918] [2022-11-20 12:08:07,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:08:08,280 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:08:08,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08 WrapperNode [2022-11-20 12:08:08,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:08:08,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:08:08,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:08:08,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:08:08,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:08,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:08,793 INFO L138 Inliner]: procedures = 445, calls = 4000, calls flagged for inlining = 188, calls inlined = 182, statements flattened = 9822 [2022-11-20 12:08:08,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:08:08,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:08:08,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:08:08,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:08:08,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:08,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:08,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:08,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,393 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:08:09,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:08:09,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:08:09,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:08:09,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (1/1) ... [2022-11-20 12:08:09,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:08:09,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:08:09,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:08:09,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:08:09,601 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 12:08:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 12:08:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_put_rq_buf [2022-11-20 12:08:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_put_rq_buf [2022-11-20 12:08:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 12:08:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-20 12:08:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-20 12:08:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_unsol_pdu_adjust_rq [2022-11-20 12:08:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_unsol_pdu_adjust_rq [2022-11-20 12:08:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure __iscsi_complete_pdu [2022-11-20 12:08:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __iscsi_complete_pdu [2022-11-20 12:08:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:08:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:08:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 12:08:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 12:08:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ep_active_list_del [2022-11-20 12:08:09,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ep_active_list_del [2022-11-20 12:08:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:08:09,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:08:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-20 12:08:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-20 12:08:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 12:08:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 12:08:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_session_create [2022-11-20 12:08:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_session_create [2022-11-20 12:08:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_conn_destroy [2022-11-20 12:08:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_conn_destroy [2022-11-20 12:08:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 12:08:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 12:08:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ep_get_param [2022-11-20 12:08:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ep_get_param [2022-11-20 12:08:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_eh_recover_target [2022-11-20 12:08:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_eh_recover_target [2022-11-20 12:08:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 12:08:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 12:08:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_task_xmit [2022-11-20 12:08:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_task_xmit [2022-11-20 12:08:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_adapter_ready [2022-11-20 12:08:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_adapter_ready [2022-11-20 12:08:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_session_get_param [2022-11-20 12:08:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_session_get_param [2022-11-20 12:08:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_stats [2022-11-20 12:08:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_stats [2022-11-20 12:08:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_send_nl_mesg [2022-11-20 12:08:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_send_nl_mesg [2022-11-20 12:08:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_queuecommand [2022-11-20 12:08:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_queuecommand [2022-11-20 12:08:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:08:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:08:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_send_iscsi_nopout [2022-11-20 12:08:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_send_iscsi_nopout [2022-11-20 12:08:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_conn_get_param [2022-11-20 12:08:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_conn_get_param [2022-11-20 12:08:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_tear_down_conn [2022-11-20 12:08:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_tear_down_conn [2022-11-20 12:08:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:08:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_link_state [2022-11-20 12:08:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_link_state [2022-11-20 12:08:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:08:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:08:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_session_teardown [2022-11-20 12:08:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_session_teardown [2022-11-20 12:08:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:08:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:08:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_conn_stop [2022-11-20 12:08:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_conn_stop [2022-11-20 12:08:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 12:08:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 12:08:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure __rounddown_pow_of_two [2022-11-20 12:08:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __rounddown_pow_of_two [2022-11-20 12:08:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 12:08:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 12:08:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 12:08:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 12:08:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 12:08:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 12:08:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_conn_send_pdu [2022-11-20 12:08:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_conn_send_pdu [2022-11-20 12:08:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ring_dbell_update_sq_params [2022-11-20 12:08:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ring_dbell_update_sq_params [2022-11-20 12:08:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_maps_update_done [2022-11-20 12:08:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_maps_update_done [2022-11-20 12:08:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 12:08:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 12:08:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_iscsi_unmap_sg_list [2022-11-20 12:08:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_iscsi_unmap_sg_list [2022-11-20 12:08:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-11-20 12:08:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-11-20 12:08:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_release_free_cid_que [2022-11-20 12:08:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_release_free_cid_que [2022-11-20 12:08:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:08:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:08:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 12:08:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 12:08:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_set_param [2022-11-20 12:08:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_set_param [2022-11-20 12:08:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 12:08:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 12:08:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-20 12:08:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-20 12:08:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 12:08:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 12:08:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_free_qp_resc [2022-11-20 12:08:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_free_qp_resc [2022-11-20 12:08:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_session_destroy [2022-11-20 12:08:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_session_destroy [2022-11-20 12:08:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_dev_to_hba [2022-11-20 12:08:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_dev_to_hba [2022-11-20 12:08:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ep_connect [2022-11-20 12:08:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ep_connect [2022-11-20 12:08:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 12:08:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 12:08:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_task_has_unsol_data [2022-11-20 12:08:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_task_has_unsol_data [2022-11-20 12:08:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:08:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-20 12:08:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-20 12:08:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_cid_num [2022-11-20 12:08:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_cid_num [2022-11-20 12:08:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_hw_ep_disconnect [2022-11-20 12:08:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_hw_ep_disconnect [2022-11-20 12:08:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-11-20 12:08:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-11-20 12:08:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:08:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_conn_create [2022-11-20 12:08:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_conn_create [2022-11-20 12:08:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ep_ofld_list_del [2022-11-20 12:08:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ep_ofld_list_del [2022-11-20 12:08:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:08:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure fls_long [2022-11-20 12:08:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure fls_long [2022-11-20 12:08:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 12:08:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_host_get_param [2022-11-20 12:08:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_host_get_param [2022-11-20 12:08:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:08:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:08:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:08:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-20 12:08:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-20 12:08:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_setup_cmd_wqe_template [2022-11-20 12:08:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_setup_cmd_wqe_template [2022-11-20 12:08:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~C_INT [2022-11-20 12:08:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~TO~C_INT [2022-11-20 12:08:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_cleanup_task [2022-11-20 12:08:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_cleanup_task [2022-11-20 12:08:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_nl_set_path [2022-11-20 12:08:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_nl_set_path [2022-11-20 12:08:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_chip_cleanup [2022-11-20 12:08:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_chip_cleanup [2022-11-20 12:08:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_ep_poll [2022-11-20 12:08:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_ep_poll [2022-11-20 12:08:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_arm_cq_event_coalescing [2022-11-20 12:08:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_arm_cq_event_coalescing [2022-11-20 12:08:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 12:08:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 12:08:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 12:08:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 12:08:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-11-20 12:08:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-11-20 12:08:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-20 12:08:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-20 12:08:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:08:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure flush_signals [2022-11-20 12:08:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_signals [2022-11-20 12:08:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 12:08:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 12:08:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 12:08:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 12:08:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:08:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:08:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 12:08:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 12:08:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 12:08:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 12:08:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 12:08:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 12:08:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:08:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 12:08:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 12:08:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 12:08:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 12:08:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:08:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-11-20 12:08:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-11-20 12:08:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-11-20 12:08:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-11-20 12:08:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:08:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:08:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:08:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:08:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_recovery_que_add_conn [2022-11-20 12:08:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_recovery_que_add_conn [2022-11-20 12:08:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:08:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:08:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 12:08:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 12:08:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_attr_is_visible [2022-11-20 12:08:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_attr_is_visible [2022-11-20 12:08:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 12:08:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-11-20 12:08:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-11-20 12:08:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-11-20 12:08:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-11-20 12:08:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_process_scsi_cmd_resp [2022-11-20 12:08:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_process_scsi_cmd_resp [2022-11-20 12:08:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_destroy_cmd_pool [2022-11-20 12:08:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_destroy_cmd_pool [2022-11-20 12:08:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 12:08:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 12:08:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:08:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:08:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 12:08:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 12:08:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_target_alloc [2022-11-20 12:08:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_target_alloc [2022-11-20 12:08:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 12:08:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 12:08:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 12:08:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 12:08:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_eh_device_reset [2022-11-20 12:08:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_eh_device_reset [2022-11-20 12:08:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:08:09,651 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:08:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_conn_get_stats [2022-11-20 12:08:09,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_conn_get_stats [2022-11-20 12:08:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 12:08:09,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 12:08:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_session_recovery_timedout [2022-11-20 12:08:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_session_recovery_timedout [2022-11-20 12:08:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_unregister_transport [2022-11-20 12:08:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_unregister_transport [2022-11-20 12:08:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:08:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 12:08:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 12:08:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:08:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:08:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:08:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 12:08:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 12:08:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_itt_to_task [2022-11-20 12:08:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_itt_to_task [2022-11-20 12:08:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-20 12:08:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-20 12:08:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_write_cmd_bd_idx [2022-11-20 12:08:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_write_cmd_bd_idx [2022-11-20 12:08:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_host_for_each_session [2022-11-20 12:08:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_host_for_each_session [2022-11-20 12:08:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:08:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:08:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:08:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:08:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:08:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_conn_bind [2022-11-20 12:08:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_conn_bind [2022-11-20 12:08:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 12:08:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 12:08:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 12:08:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 12:08:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_process_new_cqes [2022-11-20 12:08:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_process_new_cqes [2022-11-20 12:08:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 12:08:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 12:08:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 12:08:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 12:08:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_free_ep [2022-11-20 12:08:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_free_ep [2022-11-20 12:08:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_conn_start [2022-11-20 12:08:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_conn_start [2022-11-20 12:08:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_find_hba_for_cnic [2022-11-20 12:08:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_find_hba_for_cnic [2022-11-20 12:08:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 12:08:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 12:08:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_free_hba [2022-11-20 12:08:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_free_hba [2022-11-20 12:08:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2022-11-20 12:08:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2022-11-20 12:08:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_free_mp_bdt [2022-11-20 12:08:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_free_mp_bdt [2022-11-20 12:08:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-20 12:08:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-20 12:08:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 12:08:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 12:08:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_percpu_thread_destroy [2022-11-20 12:08:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_percpu_thread_destroy [2022-11-20 12:08:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:08:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 12:08:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 12:08:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 12:08:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_rq_buf [2022-11-20 12:08:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_rq_buf [2022-11-20 12:08:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:08:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:08:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-20 12:08:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-20 12:08:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:08:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:08:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:08:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:08:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:08:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:08:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-20 12:08:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-20 12:08:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 12:08:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 12:08:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 12:08:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 12:08:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_eh_abort [2022-11-20 12:08:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_eh_abort [2022-11-20 12:08:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 12:08:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 12:08:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-20 12:08:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-20 12:08:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_shost [2022-11-20 12:08:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_shost [2022-11-20 12:08:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 12:08:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 12:08:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 12:08:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 12:08:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure iscsi_conn_teardown [2022-11-20 12:08:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsi_conn_teardown [2022-11-20 12:08:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_percpu_thread_create [2022-11-20 12:08:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_percpu_thread_create [2022-11-20 12:08:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_maps_update_begin [2022-11-20 12:08:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_maps_update_begin [2022-11-20 12:08:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_send_fw_iscsi_init_msg [2022-11-20 12:08:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_send_fw_iscsi_init_msg [2022-11-20 12:08:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 12:08:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 12:08:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 12:08:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 12:08:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 12:08:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 12:08:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-20 12:08:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-20 12:08:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2i_get_conn_from_id [2022-11-20 12:08:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2i_get_conn_from_id [2022-11-20 12:08:11,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:08:11,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:08:12,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:10:41,979 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:10:42,007 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:10:42,007 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:10:42,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:42 BoogieIcfgContainer [2022-11-20 12:10:42,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:10:42,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:10:42,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:10:42,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:10:42,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:08:01" (1/3) ... [2022-11-20 12:10:42,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbb37e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:42, skipping insertion in model container [2022-11-20 12:10:42,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:08:08" (2/3) ... [2022-11-20 12:10:42,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbb37e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:42, skipping insertion in model container [2022-11-20 12:10:42,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:42" (3/3) ... [2022-11-20 12:10:42,022 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--bnx2i--bnx2i.ko-entry_point.cil.out.i [2022-11-20 12:10:42,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:10:42,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:10:42,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:10:42,172 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;@3a98bd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:10:42,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:10:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand has 3170 states, 2215 states have (on average 1.3611738148984198) internal successors, (3015), 2279 states have internal predecessors, (3015), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (795), 784 states have call predecessors, (795), 795 states have call successors, (795) [2022-11-20 12:10:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-11-20 12:10:42,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:42,277 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:42,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:42,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1847489212, now seen corresponding path program 1 times [2022-11-20 12:10:42,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:42,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807926285] [2022-11-20 12:10:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:42,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:42,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:42,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:10:42,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:10:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:45,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:10:45,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2022-11-20 12:10:45,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:45,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:45,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807926285] [2022-11-20 12:10:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807926285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:45,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:45,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:10:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242679451] [2022-11-20 12:10:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:45,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:10:45,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:10:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:10:45,328 INFO L87 Difference]: Start difference. First operand has 3170 states, 2215 states have (on average 1.3611738148984198) internal successors, (3015), 2279 states have internal predecessors, (3015), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (795), 784 states have call predecessors, (795), 795 states have call successors, (795) Second operand has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 12:10:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:45,553 INFO L93 Difference]: Finished difference Result 6335 states and 9375 transitions. [2022-11-20 12:10:45,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:10:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 341 [2022-11-20 12:10:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:45,592 INFO L225 Difference]: With dead ends: 6335 [2022-11-20 12:10:45,592 INFO L226 Difference]: Without dead ends: 3124 [2022-11-20 12:10:45,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:10:45,616 INFO L413 NwaCegarLoop]: 4608 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, 4608 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:45,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4608 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2022-11-20 12:10:45,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3124. [2022-11-20 12:10:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2192 states have (on average 1.3567518248175183) internal successors, (2974), 2243 states have internal predecessors, (2974), 782 states have call successors, (782), 150 states have call predecessors, (782), 149 states have return successors, (781), 771 states have call predecessors, (781), 781 states have call successors, (781) [2022-11-20 12:10:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4537 transitions. [2022-11-20 12:10:45,872 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4537 transitions. Word has length 341 [2022-11-20 12:10:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:45,875 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 4537 transitions. [2022-11-20 12:10:45,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 12:10:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4537 transitions. [2022-11-20 12:10:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-11-20 12:10:45,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:45,895 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:45,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:10:46,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:46,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:46,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1805602088, now seen corresponding path program 1 times [2022-11-20 12:10:46,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:46,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26057878] [2022-11-20 12:10:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:46,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:46,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:46,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:10:46,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:10:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:48,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:10:48,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:49,170 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-11-20 12:10:49,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:10:49,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:49,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26057878] [2022-11-20 12:10:49,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26057878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:49,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:49,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377970234] [2022-11-20 12:10:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:49,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:49,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:49,190 INFO L87 Difference]: Start difference. First operand 3124 states and 4537 transitions. Second operand has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 12:10:52,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:52,976 INFO L93 Difference]: Finished difference Result 6246 states and 9152 transitions. [2022-11-20 12:10:52,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:10:52,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 341 [2022-11-20 12:10:52,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:53,002 INFO L225 Difference]: With dead ends: 6246 [2022-11-20 12:10:53,002 INFO L226 Difference]: Without dead ends: 3127 [2022-11-20 12:10:53,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:10:53,021 INFO L413 NwaCegarLoop]: 4502 mSDtfsCounter, 6 mSDsluCounter, 17919 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 22421 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:53,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 22421 Invalid, 306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 12:10:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2022-11-20 12:10:53,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 3127. [2022-11-20 12:10:53,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 2194 states have (on average 1.3568824065633547) internal successors, (2977), 2246 states have internal predecessors, (2977), 782 states have call successors, (782), 150 states have call predecessors, (782), 150 states have return successors, (786), 771 states have call predecessors, (786), 781 states have call successors, (786) [2022-11-20 12:10:53,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 4545 transitions. [2022-11-20 12:10:53,183 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 4545 transitions. Word has length 341 [2022-11-20 12:10:53,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:53,184 INFO L495 AbstractCegarLoop]: Abstraction has 3127 states and 4545 transitions. [2022-11-20 12:10:53,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-20 12:10:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 4545 transitions. [2022-11-20 12:10:53,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-11-20 12:10:53,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:53,204 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:53,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:10:53,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:53,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash -250495296, now seen corresponding path program 1 times [2022-11-20 12:10:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:10:53,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001030601] [2022-11-20 12:10:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:53,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:10:53,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:10:53,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:10:53,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:10:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:56,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:10:56,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:10:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 284 proven. 1 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2022-11-20 12:10:56,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:10:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 2 proven. 51 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2022-11-20 12:10:59,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:10:59,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001030601] [2022-11-20 12:10:59,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001030601] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:10:59,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:10:59,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 12:10:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925603067] [2022-11-20 12:10:59,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:10:59,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:10:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:10:59,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:10:59,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:10:59,238 INFO L87 Difference]: Start difference. First operand 3127 states and 4545 transitions. Second operand has 11 states, 9 states have (on average 20.22222222222222) internal successors, (182), 11 states have internal predecessors, (182), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:11:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:06,529 INFO L93 Difference]: Finished difference Result 6257 states and 9174 transitions. [2022-11-20 12:11:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:11:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 20.22222222222222) internal successors, (182), 11 states have internal predecessors, (182), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) Word has length 365 [2022-11-20 12:11:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:06,552 INFO L225 Difference]: With dead ends: 6257 [2022-11-20 12:11:06,552 INFO L226 Difference]: Without dead ends: 3135 [2022-11-20 12:11:06,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:11:06,568 INFO L413 NwaCegarLoop]: 4504 mSDtfsCounter, 12 mSDsluCounter, 31344 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 35848 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:06,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 35848 Invalid, 547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-20 12:11:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2022-11-20 12:11:06,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3133. [2022-11-20 12:11:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 2198 states have (on average 1.356687898089172) internal successors, (2982), 2250 states have internal predecessors, (2982), 783 states have call successors, (783), 151 states have call predecessors, (783), 151 states have return successors, (787), 772 states have call predecessors, (787), 782 states have call successors, (787) [2022-11-20 12:11:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4552 transitions. [2022-11-20 12:11:06,689 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4552 transitions. Word has length 365 [2022-11-20 12:11:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:06,689 INFO L495 AbstractCegarLoop]: Abstraction has 3133 states and 4552 transitions. [2022-11-20 12:11:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 20.22222222222222) internal successors, (182), 11 states have internal predecessors, (182), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:11:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4552 transitions. [2022-11-20 12:11:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-11-20 12:11:06,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:06,703 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:06,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:06,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:06,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:11:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:06,928 INFO L85 PathProgramCache]: Analyzing trace with hash 128570920, now seen corresponding path program 1 times [2022-11-20 12:11:06,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:11:06,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952717666] [2022-11-20 12:11:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:06,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:11:06,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:11:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:11:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:09,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 2290 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:11:09,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 309 proven. 3 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2022-11-20 12:11:10,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2022-11-20 12:11:13,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:13,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952717666] [2022-11-20 12:11:13,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952717666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:13,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:11:13,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 12:11:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608512541] [2022-11-20 12:11:13,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:13,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:11:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:13,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:11:13,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:11:13,109 INFO L87 Difference]: Start difference. First operand 3133 states and 4552 transitions. Second operand has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 13 states have internal predecessors, (168), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2022-11-20 12:11:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:19,947 INFO L93 Difference]: Finished difference Result 6275 states and 9202 transitions. [2022-11-20 12:11:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:11:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 13 states have internal predecessors, (168), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) Word has length 353 [2022-11-20 12:11:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:19,974 INFO L225 Difference]: With dead ends: 6275 [2022-11-20 12:11:19,975 INFO L226 Difference]: Without dead ends: 3147 [2022-11-20 12:11:19,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:11:20,000 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 32 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 22416 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:20,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 22416 Invalid, 530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-20 12:11:20,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2022-11-20 12:11:20,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3145. [2022-11-20 12:11:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 2207 states have (on average 1.3565926597190756) internal successors, (2994), 2259 states have internal predecessors, (2994), 784 states have call successors, (784), 153 states have call predecessors, (784), 153 states have return successors, (793), 773 states have call predecessors, (793), 783 states have call successors, (793) [2022-11-20 12:11:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4571 transitions. [2022-11-20 12:11:20,141 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4571 transitions. Word has length 353 [2022-11-20 12:11:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:20,142 INFO L495 AbstractCegarLoop]: Abstraction has 3145 states and 4571 transitions. [2022-11-20 12:11:20,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 15.272727272727273) internal successors, (168), 13 states have internal predecessors, (168), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2022-11-20 12:11:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4571 transitions. [2022-11-20 12:11:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-20 12:11:20,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:20,161 INFO L195 NwaCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:20,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:20,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:20,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:11:20,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash -695368782, now seen corresponding path program 2 times [2022-11-20 12:11:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:11:20,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662440366] [2022-11-20 12:11:20,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:11:20,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:20,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:11:20,391 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:11:20,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:11:22,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:11:22,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:11:22,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:11:22,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-11-20 12:11:22,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:11:22,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:22,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662440366] [2022-11-20 12:11:22,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662440366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:11:22,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:11:22,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:11:22,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487616880] [2022-11-20 12:11:22,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:11:22,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:11:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:22,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:11:22,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:11:22,766 INFO L87 Difference]: Start difference. First operand 3145 states and 4571 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 12:11:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:23,488 INFO L93 Difference]: Finished difference Result 7255 states and 10717 transitions. [2022-11-20 12:11:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:11:23,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 375 [2022-11-20 12:11:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:23,523 INFO L225 Difference]: With dead ends: 7255 [2022-11-20 12:11:23,523 INFO L226 Difference]: Without dead ends: 4119 [2022-11-20 12:11:23,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:11:23,542 INFO L413 NwaCegarLoop]: 6082 mSDtfsCounter, 994 mSDsluCounter, 16971 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 23053 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:23,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 23053 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:11:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2022-11-20 12:11:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3149. [2022-11-20 12:11:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3149 states, 2210 states have (on average 1.356108597285068) internal successors, (2997), 2262 states have internal predecessors, (2997), 784 states have call successors, (784), 153 states have call predecessors, (784), 154 states have return successors, (797), 774 states have call predecessors, (797), 783 states have call successors, (797) [2022-11-20 12:11:23,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4578 transitions. [2022-11-20 12:11:23,690 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4578 transitions. Word has length 375 [2022-11-20 12:11:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:23,691 INFO L495 AbstractCegarLoop]: Abstraction has 3149 states and 4578 transitions. [2022-11-20 12:11:23,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 12:11:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4578 transitions. [2022-11-20 12:11:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-11-20 12:11:23,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:23,709 INFO L195 NwaCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:23,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:23,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:11:23,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash 35317089, now seen corresponding path program 1 times [2022-11-20 12:11:23,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:11:23,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361796366] [2022-11-20 12:11:23,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:11:23,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:11:23,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:11:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:26,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:11:26,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 336 proven. 6 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2022-11-20 12:11:27,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2022-11-20 12:11:31,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:31,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361796366] [2022-11-20 12:11:31,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361796366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:31,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:11:31,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 12:11:31,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980796788] [2022-11-20 12:11:31,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:31,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 12:11:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:31,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 12:11:31,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:11:31,117 INFO L87 Difference]: Start difference. First operand 3149 states and 4578 transitions. Second operand has 15 states, 13 states have (on average 13.23076923076923) internal successors, (172), 15 states have internal predecessors, (172), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2022-11-20 12:11:40,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:11:40,682 INFO L93 Difference]: Finished difference Result 6301 states and 9239 transitions. [2022-11-20 12:11:40,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:11:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 13.23076923076923) internal successors, (172), 15 states have internal predecessors, (172), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) Word has length 358 [2022-11-20 12:11:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:11:40,705 INFO L225 Difference]: With dead ends: 6301 [2022-11-20 12:11:40,705 INFO L226 Difference]: Without dead ends: 3154 [2022-11-20 12:11:40,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:11:40,721 INFO L413 NwaCegarLoop]: 4508 mSDtfsCounter, 35 mSDsluCounter, 31386 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35894 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:11:40,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35894 Invalid, 779 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [114 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-20 12:11:40,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2022-11-20 12:11:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3150. [2022-11-20 12:11:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2211 states have (on average 1.3563998190863862) internal successors, (2999), 2263 states have internal predecessors, (2999), 784 states have call successors, (784), 153 states have call predecessors, (784), 154 states have return successors, (797), 774 states have call predecessors, (797), 783 states have call successors, (797) [2022-11-20 12:11:40,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4580 transitions. [2022-11-20 12:11:40,834 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4580 transitions. Word has length 358 [2022-11-20 12:11:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:11:40,835 INFO L495 AbstractCegarLoop]: Abstraction has 3150 states and 4580 transitions. [2022-11-20 12:11:40,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 13.23076923076923) internal successors, (172), 15 states have internal predecessors, (172), 4 states have call successors, (63), 2 states have call predecessors, (63), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2022-11-20 12:11:40,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4580 transitions. [2022-11-20 12:11:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-20 12:11:40,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:11:40,847 INFO L195 NwaCegarLoop]: trace histogram [20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:11:40,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:11:41,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:41,070 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:11:41,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:11:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1351498411, now seen corresponding path program 1 times [2022-11-20 12:11:41,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:11:41,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5482560] [2022-11-20 12:11:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:11:41,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:11:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:11:41,074 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:11:41,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:11:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:11:43,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:11:43,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:11:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 369 proven. 10 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-11-20 12:11:44,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:11:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 2 proven. 145 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2022-11-20 12:11:49,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:11:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5482560] [2022-11-20 12:11:49,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5482560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:11:49,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:11:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 12:11:49,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086960629] [2022-11-20 12:11:49,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:11:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 12:11:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:11:49,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 12:11:49,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:11:49,185 INFO L87 Difference]: Start difference. First operand 3150 states and 4580 transitions. Second operand has 17 states, 15 states have (on average 12.666666666666666) internal successors, (190), 17 states have internal predecessors, (190), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:12:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:02,470 INFO L93 Difference]: Finished difference Result 6308 states and 9258 transitions. [2022-11-20 12:12:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 12:12:02,471 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 12.666666666666666) internal successors, (190), 17 states have internal predecessors, (190), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) Word has length 380 [2022-11-20 12:12:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:02,492 INFO L225 Difference]: With dead ends: 6308 [2022-11-20 12:12:02,492 INFO L226 Difference]: Without dead ends: 3163 [2022-11-20 12:12:02,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:12:02,507 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 40 mSDsluCounter, 49311 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 53818 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:02,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 53818 Invalid, 1098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-20 12:12:02,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2022-11-20 12:12:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3159. [2022-11-20 12:12:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 2219 states have (on average 1.3573681838666065) internal successors, (3012), 2271 states have internal predecessors, (3012), 784 states have call successors, (784), 154 states have call predecessors, (784), 155 states have return successors, (802), 774 states have call predecessors, (802), 783 states have call successors, (802) [2022-11-20 12:12:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4598 transitions. [2022-11-20 12:12:02,653 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4598 transitions. Word has length 380 [2022-11-20 12:12:02,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:02,653 INFO L495 AbstractCegarLoop]: Abstraction has 3159 states and 4598 transitions. [2022-11-20 12:12:02,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 12.666666666666666) internal successors, (190), 17 states have internal predecessors, (190), 4 states have call successors, (69), 2 states have call predecessors, (69), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:12:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4598 transitions. [2022-11-20 12:12:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-20 12:12:02,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:02,666 INFO L195 NwaCegarLoop]: trace histogram [22, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:02,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:12:02,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:02,891 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:12:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash 939141651, now seen corresponding path program 2 times [2022-11-20 12:12:02,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:12:02,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80852153] [2022-11-20 12:12:02,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:12:02,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:12:02,897 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:12:02,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:12:04,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:12:04,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:12:04,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:12:04,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:12:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-11-20 12:12:05,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:12:05,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:12:05,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80852153] [2022-11-20 12:12:05,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80852153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:05,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:05,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:12:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806219105] [2022-11-20 12:12:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:05,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:12:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:12:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:12:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:12:05,340 INFO L87 Difference]: Start difference. First operand 3159 states and 4598 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 12:12:05,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:05,905 INFO L93 Difference]: Finished difference Result 3179 states and 4622 transitions. [2022-11-20 12:12:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:12:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 382 [2022-11-20 12:12:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:05,923 INFO L225 Difference]: With dead ends: 3179 [2022-11-20 12:12:05,924 INFO L226 Difference]: Without dead ends: 3176 [2022-11-20 12:12:05,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:12:05,927 INFO L413 NwaCegarLoop]: 4537 mSDtfsCounter, 20 mSDsluCounter, 18133 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 22670 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:05,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 22670 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:12:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2022-11-20 12:12:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3176. [2022-11-20 12:12:06,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3176 states, 2229 states have (on average 1.3562135486765365) internal successors, (3023), 2281 states have internal predecessors, (3023), 789 states have call successors, (789), 156 states have call predecessors, (789), 157 states have return successors, (807), 779 states have call predecessors, (807), 788 states have call successors, (807) [2022-11-20 12:12:06,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 4619 transitions. [2022-11-20 12:12:06,035 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 4619 transitions. Word has length 382 [2022-11-20 12:12:06,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:06,036 INFO L495 AbstractCegarLoop]: Abstraction has 3176 states and 4619 transitions. [2022-11-20 12:12:06,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 12:12:06,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 4619 transitions. [2022-11-20 12:12:06,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-20 12:12:06,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:06,047 INFO L195 NwaCegarLoop]: trace histogram [22, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:06,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:12:06,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:06,263 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:12:06,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1573335117, now seen corresponding path program 1 times [2022-11-20 12:12:06,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:12:06,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455784608] [2022-11-20 12:12:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:06,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:06,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:12:06,267 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:12:06,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:12:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:11,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 12:12:11,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:12:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 396 proven. 15 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-11-20 12:12:12,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:12:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-20 12:12:17,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:12:17,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455784608] [2022-11-20 12:12:17,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455784608] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:12:17,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:12:17,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 12:12:17,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634156214] [2022-11-20 12:12:17,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:12:17,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 12:12:17,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:12:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 12:12:17,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:12:17,649 INFO L87 Difference]: Start difference. First operand 3176 states and 4619 transitions. Second operand has 19 states, 17 states have (on average 8.529411764705882) internal successors, (145), 19 states have internal predecessors, (145), 4 states have call successors, (66), 2 states have call predecessors, (66), 5 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-20 12:12:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:35,725 INFO L93 Difference]: Finished difference Result 6354 states and 9298 transitions. [2022-11-20 12:12:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 12:12:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.529411764705882) internal successors, (145), 19 states have internal predecessors, (145), 4 states have call successors, (66), 2 states have call predecessors, (66), 5 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 359 [2022-11-20 12:12:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:35,750 INFO L225 Difference]: With dead ends: 6354 [2022-11-20 12:12:35,750 INFO L226 Difference]: Without dead ends: 3183 [2022-11-20 12:12:35,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 12:12:35,766 INFO L413 NwaCegarLoop]: 4508 mSDtfsCounter, 47 mSDsluCounter, 62771 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 67279 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:35,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 67279 Invalid, 1452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2022-11-20 12:12:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2022-11-20 12:12:35,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 3177. [2022-11-20 12:12:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 2230 states have (on average 1.3565022421524664) internal successors, (3025), 2282 states have internal predecessors, (3025), 789 states have call successors, (789), 156 states have call predecessors, (789), 157 states have return successors, (807), 779 states have call predecessors, (807), 788 states have call successors, (807) [2022-11-20 12:12:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4621 transitions. [2022-11-20 12:12:35,900 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4621 transitions. Word has length 359 [2022-11-20 12:12:35,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:35,900 INFO L495 AbstractCegarLoop]: Abstraction has 3177 states and 4621 transitions. [2022-11-20 12:12:35,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.529411764705882) internal successors, (145), 19 states have internal predecessors, (145), 4 states have call successors, (66), 2 states have call predecessors, (66), 5 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-20 12:12:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4621 transitions. [2022-11-20 12:12:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2022-11-20 12:12:35,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:35,914 INFO L195 NwaCegarLoop]: trace histogram [24, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:36,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:12:36,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:36,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:12:36,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:36,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1134509733, now seen corresponding path program 2 times [2022-11-20 12:12:36,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:12:36,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699635622] [2022-11-20 12:12:36,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:12:36,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:12:36,133 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:12:36,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:12:38,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:12:38,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:12:38,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:12:38,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:12:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2022-11-20 12:12:39,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:12:39,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:12:39,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699635622] [2022-11-20 12:12:39,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699635622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:12:39,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:12:39,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:12:39,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064478950] [2022-11-20 12:12:39,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:12:39,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:12:39,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:12:39,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:12:39,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:12:39,251 INFO L87 Difference]: Start difference. First operand 3177 states and 4621 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 12:12:42,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:12:42,855 INFO L93 Difference]: Finished difference Result 8156 states and 12178 transitions. [2022-11-20 12:12:42,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:12:42,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 361 [2022-11-20 12:12:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:12:42,892 INFO L225 Difference]: With dead ends: 8156 [2022-11-20 12:12:42,892 INFO L226 Difference]: Without dead ends: 4988 [2022-11-20 12:12:42,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:12:42,909 INFO L413 NwaCegarLoop]: 6299 mSDtfsCounter, 4625 mSDsluCounter, 15654 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4625 SdHoareTripleChecker+Valid, 21953 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1336 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:12:42,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4625 Valid, 21953 Invalid, 1352 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1336 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 12:12:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-11-20 12:12:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 3180. [2022-11-20 12:12:43,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 2233 states have (on average 1.3560232870577698) internal successors, (3028), 2285 states have internal predecessors, (3028), 789 states have call successors, (789), 156 states have call predecessors, (789), 157 states have return successors, (807), 779 states have call predecessors, (807), 788 states have call successors, (807) [2022-11-20 12:12:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4624 transitions. [2022-11-20 12:12:43,127 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4624 transitions. Word has length 361 [2022-11-20 12:12:43,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:12:43,128 INFO L495 AbstractCegarLoop]: Abstraction has 3180 states and 4624 transitions. [2022-11-20 12:12:43,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 12:12:43,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4624 transitions. [2022-11-20 12:12:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-20 12:12:43,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:12:43,145 INFO L195 NwaCegarLoop]: trace histogram [24, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:12:43,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:12:43,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:43,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:12:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:12:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1941856506, now seen corresponding path program 1 times [2022-11-20 12:12:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:12:43,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686729739] [2022-11-20 12:12:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:12:43,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:12:43,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:12:43,379 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:12:43,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:12:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:12:49,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 4842 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:12:49,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:12:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 425 proven. 21 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2022-11-20 12:12:50,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:12:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-11-20 12:12:56,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:12:56,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686729739] [2022-11-20 12:12:56,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686729739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:12:56,861 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:12:56,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-20 12:12:56,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615562523] [2022-11-20 12:12:56,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:12:56,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 12:12:56,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:12:56,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 12:12:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:12:56,864 INFO L87 Difference]: Start difference. First operand 3180 states and 4624 transitions. Second operand has 21 states, 19 states have (on average 7.842105263157895) internal successors, (149), 21 states have internal predecessors, (149), 4 states have call successors, (68), 2 states have call predecessors, (68), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:13:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:12,518 INFO L93 Difference]: Finished difference Result 6364 states and 9314 transitions. [2022-11-20 12:13:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 12:13:12,520 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.842105263157895) internal successors, (149), 21 states have internal predecessors, (149), 4 states have call successors, (68), 2 states have call predecessors, (68), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) Word has length 373 [2022-11-20 12:13:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:12,531 INFO L225 Difference]: With dead ends: 6364 [2022-11-20 12:13:12,532 INFO L226 Difference]: Without dead ends: 3189 [2022-11-20 12:13:12,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2022-11-20 12:13:12,542 INFO L413 NwaCegarLoop]: 4509 mSDtfsCounter, 81 mSDsluCounter, 40319 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 44828 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:12,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 44828 Invalid, 1222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-11-20 12:13:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2022-11-20 12:13:12,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3181. [2022-11-20 12:13:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2234 states have (on average 1.3563115487914055) internal successors, (3030), 2286 states have internal predecessors, (3030), 789 states have call successors, (789), 156 states have call predecessors, (789), 157 states have return successors, (807), 779 states have call predecessors, (807), 788 states have call successors, (807) [2022-11-20 12:13:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4626 transitions. [2022-11-20 12:13:12,671 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4626 transitions. Word has length 373 [2022-11-20 12:13:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:12,671 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 4626 transitions. [2022-11-20 12:13:12,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.842105263157895) internal successors, (149), 21 states have internal predecessors, (149), 4 states have call successors, (68), 2 states have call predecessors, (68), 5 states have return successors, (66), 4 states have call predecessors, (66), 4 states have call successors, (66) [2022-11-20 12:13:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4626 transitions. [2022-11-20 12:13:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-20 12:13:12,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:12,684 INFO L195 NwaCegarLoop]: trace histogram [26, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:12,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:12,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:12,907 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:13:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:12,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1465627294, now seen corresponding path program 2 times [2022-11-20 12:13:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:12,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598289505] [2022-11-20 12:13:12,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:12,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:12,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:12,914 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:12,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:13:15,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:13:15,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:13:16,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 12:13:16,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1314 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2022-11-20 12:13:16,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:13:16,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:16,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598289505] [2022-11-20 12:13:16,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598289505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:13:16,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:13:16,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:13:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167508780] [2022-11-20 12:13:16,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:13:16,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:13:16,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:16,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:13:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:16,940 INFO L87 Difference]: Start difference. First operand 3181 states and 4626 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 12:13:19,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:13:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:19,910 INFO L93 Difference]: Finished difference Result 6360 states and 9273 transitions. [2022-11-20 12:13:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:13:19,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 375 [2022-11-20 12:13:19,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:19,925 INFO L225 Difference]: With dead ends: 6360 [2022-11-20 12:13:19,926 INFO L226 Difference]: Without dead ends: 3188 [2022-11-20 12:13:19,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:13:19,939 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 0 mSDsluCounter, 22694 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27240 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:19,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27240 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 12:13:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2022-11-20 12:13:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3188. [2022-11-20 12:13:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 2239 states have (on average 1.3555158552925413) internal successors, (3035), 2291 states have internal predecessors, (3035), 789 states have call successors, (789), 156 states have call predecessors, (789), 159 states have return successors, (834), 781 states have call predecessors, (834), 788 states have call successors, (834) [2022-11-20 12:13:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 4658 transitions. [2022-11-20 12:13:20,064 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 4658 transitions. Word has length 375 [2022-11-20 12:13:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:20,065 INFO L495 AbstractCegarLoop]: Abstraction has 3188 states and 4658 transitions. [2022-11-20 12:13:20,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-20 12:13:20,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 4658 transitions. [2022-11-20 12:13:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-20 12:13:20,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:20,265 INFO L195 NwaCegarLoop]: trace histogram [26, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:20,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:20,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,476 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:13:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 564137799, now seen corresponding path program 1 times [2022-11-20 12:13:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:20,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333013318] [2022-11-20 12:13:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:13:20,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:20,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:20,486 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:20,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 12:13:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:13:26,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 4907 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:13:26,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:13:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 472 proven. 28 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2022-11-20 12:13:28,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:13:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 1148 trivial. 0 not checked. [2022-11-20 12:13:35,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:13:35,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333013318] [2022-11-20 12:13:35,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333013318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:13:35,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:13:35,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-20 12:13:35,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119957231] [2022-11-20 12:13:35,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:13:35,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 12:13:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:13:35,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 12:13:35,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:13:35,483 INFO L87 Difference]: Start difference. First operand 3188 states and 4658 transitions. Second operand has 23 states, 21 states have (on average 7.857142857142857) internal successors, (165), 23 states have internal predecessors, (165), 4 states have call successors, (76), 2 states have call predecessors, (76), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:13:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:13:57,980 INFO L93 Difference]: Finished difference Result 6382 states and 9388 transitions. [2022-11-20 12:13:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 12:13:57,981 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 7.857142857142857) internal successors, (165), 23 states have internal predecessors, (165), 4 states have call successors, (76), 2 states have call predecessors, (76), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) Word has length 395 [2022-11-20 12:13:57,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:13:57,997 INFO L225 Difference]: With dead ends: 6382 [2022-11-20 12:13:57,997 INFO L226 Difference]: Without dead ends: 3199 [2022-11-20 12:13:58,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2022-11-20 12:13:58,012 INFO L413 NwaCegarLoop]: 4510 mSDtfsCounter, 86 mSDsluCounter, 67256 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 71766 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:13:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 71766 Invalid, 1845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2022-11-20 12:13:58,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2022-11-20 12:13:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3189. [2022-11-20 12:13:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3189 states, 2240 states have (on average 1.3558035714285714) internal successors, (3037), 2292 states have internal predecessors, (3037), 789 states have call successors, (789), 156 states have call predecessors, (789), 159 states have return successors, (834), 781 states have call predecessors, (834), 788 states have call successors, (834) [2022-11-20 12:13:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4660 transitions. [2022-11-20 12:13:58,146 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4660 transitions. Word has length 395 [2022-11-20 12:13:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:13:58,147 INFO L495 AbstractCegarLoop]: Abstraction has 3189 states and 4660 transitions. [2022-11-20 12:13:58,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 7.857142857142857) internal successors, (165), 23 states have internal predecessors, (165), 4 states have call successors, (76), 2 states have call predecessors, (76), 5 states have return successors, (74), 4 states have call predecessors, (74), 4 states have call successors, (74) [2022-11-20 12:13:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4660 transitions. [2022-11-20 12:13:58,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-20 12:13:58,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:13:58,158 INFO L195 NwaCegarLoop]: trace histogram [28, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:13:58,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:13:58,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:58,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:13:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:13:58,384 INFO L85 PathProgramCache]: Analyzing trace with hash -999551249, now seen corresponding path program 2 times [2022-11-20 12:13:58,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:13:58,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726893327] [2022-11-20 12:13:58,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:13:58,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:13:58,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:13:58,390 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:13:58,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 12:14:01,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:14:01,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:14:02,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:14:02,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:14:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2022-11-20 12:14:09,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:14:09,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:14:09,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726893327] [2022-11-20 12:14:09,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726893327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:09,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:09,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:14:09,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149579168] [2022-11-20 12:14:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:09,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:14:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:09,712 INFO L87 Difference]: Start difference. First operand 3189 states and 4660 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 12:14:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:14:09,946 INFO L93 Difference]: Finished difference Result 5979 states and 8760 transitions. [2022-11-20 12:14:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:09,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 397 [2022-11-20 12:14:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:14:09,983 INFO L225 Difference]: With dead ends: 5979 [2022-11-20 12:14:09,984 INFO L226 Difference]: Without dead ends: 5976 [2022-11-20 12:14:09,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:09,989 INFO L413 NwaCegarLoop]: 5300 mSDtfsCounter, 3911 mSDsluCounter, 4436 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3911 SdHoareTripleChecker+Valid, 9736 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:14:09,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3911 Valid, 9736 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:14:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-11-20 12:14:10,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5937. [2022-11-20 12:14:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5937 states, 4196 states have (on average 1.3617731172545282) internal successors, (5714), 4293 states have internal predecessors, (5714), 1435 states have call successors, (1435), 298 states have call predecessors, (1435), 305 states have return successors, (1542), 1418 states have call predecessors, (1542), 1434 states have call successors, (1542) [2022-11-20 12:14:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 8691 transitions. [2022-11-20 12:14:10,253 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 8691 transitions. Word has length 397 [2022-11-20 12:14:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:14:10,254 INFO L495 AbstractCegarLoop]: Abstraction has 5937 states and 8691 transitions. [2022-11-20 12:14:10,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 12:14:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 8691 transitions. [2022-11-20 12:14:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2022-11-20 12:14:10,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:14:10,292 INFO L195 NwaCegarLoop]: trace histogram [108, 25, 25, 25, 24, 24, 24, 24, 24, 22, 22, 22, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:10,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:14:10,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:10,519 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:14:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash -23381714, now seen corresponding path program 1 times [2022-11-20 12:14:10,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:14:10,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252228878] [2022-11-20 12:14:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:10,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:14:10,527 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:14:10,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 12:14:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:18,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 7594 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:14:18,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:14:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13987 backedges. 1825 proven. 0 refuted. 0 times theorem prover too weak. 12162 trivial. 0 not checked. [2022-11-20 12:14:18,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:14:18,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:14:18,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252228878] [2022-11-20 12:14:18,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252228878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:18,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:18,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:14:18,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057679957] [2022-11-20 12:14:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:18,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:14:18,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:14:18,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:14:18,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:18,757 INFO L87 Difference]: Start difference. First operand 5937 states and 8691 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-11-20 12:14:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:14:21,838 INFO L93 Difference]: Finished difference Result 16105 states and 23437 transitions. [2022-11-20 12:14:21,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:14:21,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 949 [2022-11-20 12:14:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:14:21,885 INFO L225 Difference]: With dead ends: 16105 [2022-11-20 12:14:21,885 INFO L226 Difference]: Without dead ends: 10173 [2022-11-20 12:14:21,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:14:21,910 INFO L413 NwaCegarLoop]: 5089 mSDtfsCounter, 3227 mSDsluCounter, 4390 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 9479 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:14:21,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3227 Valid, 9479 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 12:14:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2022-11-20 12:14:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 10166. [2022-11-20 12:14:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10166 states, 7181 states have (on average 1.3553822587383373) internal successors, (9733), 7349 states have internal predecessors, (9733), 2424 states have call successors, (2424), 547 states have call predecessors, (2424), 560 states have return successors, (2569), 2395 states have call predecessors, (2569), 2423 states have call successors, (2569) [2022-11-20 12:14:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10166 states to 10166 states and 14726 transitions. [2022-11-20 12:14:22,403 INFO L78 Accepts]: Start accepts. Automaton has 10166 states and 14726 transitions. Word has length 949 [2022-11-20 12:14:22,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:14:22,404 INFO L495 AbstractCegarLoop]: Abstraction has 10166 states and 14726 transitions. [2022-11-20 12:14:22,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-11-20 12:14:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 10166 states and 14726 transitions. [2022-11-20 12:14:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2022-11-20 12:14:22,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:14:22,457 INFO L195 NwaCegarLoop]: trace histogram [108, 33, 33, 33, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:22,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:14:22,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:22,683 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:14:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1994662612, now seen corresponding path program 1 times [2022-11-20 12:14:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:14:22,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800148968] [2022-11-20 12:14:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:22,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:22,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:14:22,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:14:22,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 12:14:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:31,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 8223 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:14:31,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:14:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17970 backedges. 2160 proven. 0 refuted. 0 times theorem prover too weak. 15810 trivial. 0 not checked. [2022-11-20 12:14:31,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:14:31,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:14:31,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800148968] [2022-11-20 12:14:31,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800148968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:31,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:31,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:14:31,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858994272] [2022-11-20 12:14:31,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:31,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:14:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:14:31,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:14:31,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:14:31,364 INFO L87 Difference]: Start difference. First operand 10166 states and 14726 transitions. Second operand has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-20 12:14:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:14:32,240 INFO L93 Difference]: Finished difference Result 20339 states and 29460 transitions. [2022-11-20 12:14:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:14:32,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 1168 [2022-11-20 12:14:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:14:32,296 INFO L225 Difference]: With dead ends: 20339 [2022-11-20 12:14:32,296 INFO L226 Difference]: Without dead ends: 10166 [2022-11-20 12:14:32,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:14:32,336 INFO L413 NwaCegarLoop]: 4534 mSDtfsCounter, 6 mSDsluCounter, 13595 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18129 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:14:32,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18129 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:14:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10166 states. [2022-11-20 12:14:32,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10166 to 10166. [2022-11-20 12:14:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10166 states, 7181 states have (on average 1.3548252332544213) internal successors, (9729), 7349 states have internal predecessors, (9729), 2424 states have call successors, (2424), 547 states have call predecessors, (2424), 560 states have return successors, (2569), 2395 states have call predecessors, (2569), 2423 states have call successors, (2569) [2022-11-20 12:14:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10166 states to 10166 states and 14722 transitions. [2022-11-20 12:14:33,048 INFO L78 Accepts]: Start accepts. Automaton has 10166 states and 14722 transitions. Word has length 1168 [2022-11-20 12:14:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:14:33,049 INFO L495 AbstractCegarLoop]: Abstraction has 10166 states and 14722 transitions. [2022-11-20 12:14:33,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 2 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-11-20 12:14:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 10166 states and 14722 transitions. [2022-11-20 12:14:33,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2022-11-20 12:14:33,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:14:33,102 INFO L195 NwaCegarLoop]: trace histogram [108, 33, 33, 33, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:33,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:14:33,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:33,303 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:14:33,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:33,304 INFO L85 PathProgramCache]: Analyzing trace with hash -821114728, now seen corresponding path program 1 times [2022-11-20 12:14:33,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:14:33,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064065657] [2022-11-20 12:14:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:14:33,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:33,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:14:33,309 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:14:33,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 12:14:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:14:42,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 8240 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:14:42,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:14:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 17970 backedges. 2160 proven. 0 refuted. 0 times theorem prover too weak. 15810 trivial. 0 not checked. [2022-11-20 12:14:42,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:14:42,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:14:42,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064065657] [2022-11-20 12:14:42,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064065657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:14:42,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:14:42,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:14:42,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868926264] [2022-11-20 12:14:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:14:42,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:14:42,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:14:42,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:14:42,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:14:42,949 INFO L87 Difference]: Start difference. First operand 10166 states and 14722 transitions. Second operand has 6 states, 6 states have (on average 43.5) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (97), 3 states have call predecessors, (97), 2 states have call successors, (97) [2022-11-20 12:14:45,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:14:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:14:46,697 INFO L93 Difference]: Finished difference Result 22548 states and 32554 transitions. [2022-11-20 12:14:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:14:46,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (97), 3 states have call predecessors, (97), 2 states have call successors, (97) Word has length 1175 [2022-11-20 12:14:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:14:46,761 INFO L225 Difference]: With dead ends: 22548 [2022-11-20 12:14:46,761 INFO L226 Difference]: Without dead ends: 12373 [2022-11-20 12:14:46,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:14:46,801 INFO L413 NwaCegarLoop]: 5027 mSDtfsCounter, 2949 mSDsluCounter, 19578 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 24605 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:14:46,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 24605 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 12:14:46,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12373 states. [2022-11-20 12:14:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12373 to 12369. [2022-11-20 12:14:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12369 states, 8732 states have (on average 1.3518094365551994) internal successors, (11804), 8934 states have internal predecessors, (11804), 2932 states have call successors, (2932), 689 states have call predecessors, (2932), 704 states have return successors, (3081), 2896 states have call predecessors, (3081), 2931 states have call successors, (3081) [2022-11-20 12:14:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12369 states to 12369 states and 17817 transitions. [2022-11-20 12:14:47,496 INFO L78 Accepts]: Start accepts. Automaton has 12369 states and 17817 transitions. Word has length 1175 [2022-11-20 12:14:47,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:14:47,497 INFO L495 AbstractCegarLoop]: Abstraction has 12369 states and 17817 transitions. [2022-11-20 12:14:47,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.5) internal successors, (261), 5 states have internal predecessors, (261), 2 states have call successors, (100), 2 states have call predecessors, (100), 3 states have return successors, (97), 3 states have call predecessors, (97), 2 states have call successors, (97) [2022-11-20 12:14:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand 12369 states and 17817 transitions. [2022-11-20 12:14:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2022-11-20 12:14:47,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:14:47,558 INFO L195 NwaCegarLoop]: trace histogram [108, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:14:47,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:14:47,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:47,771 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:14:47,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:14:47,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2062213967, now seen corresponding path program 2 times [2022-11-20 12:14:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:14:47,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588570114] [2022-11-20 12:14:47,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:14:47,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:14:47,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:14:47,780 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:14:47,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 12:16:32,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:16:32,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:16:33,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 8283 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:16:33,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18250 backedges. 2420 proven. 0 refuted. 0 times theorem prover too weak. 15830 trivial. 0 not checked. [2022-11-20 12:16:33,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:33,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:33,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588570114] [2022-11-20 12:16:33,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588570114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:33,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:33,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:16:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157468174] [2022-11-20 12:16:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:33,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:16:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:16:33,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:16:33,627 INFO L87 Difference]: Start difference. First operand 12369 states and 17817 transitions. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) [2022-11-20 12:16:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:34,650 INFO L93 Difference]: Finished difference Result 22540 states and 32541 transitions. [2022-11-20 12:16:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:16:34,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) Word has length 1195 [2022-11-20 12:16:34,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:34,690 INFO L225 Difference]: With dead ends: 22540 [2022-11-20 12:16:34,690 INFO L226 Difference]: Without dead ends: 12343 [2022-11-20 12:16:34,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1196 GetRequests, 1191 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:16:34,719 INFO L413 NwaCegarLoop]: 4533 mSDtfsCounter, 6 mSDsluCounter, 13591 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 18124 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:34,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 18124 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:16:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12343 states. [2022-11-20 12:16:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12343 to 12343. [2022-11-20 12:16:35,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12343 states, 8714 states have (on average 1.35161808583888) internal successors, (11778), 8916 states have internal predecessors, (11778), 2928 states have call successors, (2928), 685 states have call predecessors, (2928), 700 states have return successors, (3077), 2892 states have call predecessors, (3077), 2927 states have call successors, (3077) [2022-11-20 12:16:35,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12343 states to 12343 states and 17783 transitions. [2022-11-20 12:16:35,368 INFO L78 Accepts]: Start accepts. Automaton has 12343 states and 17783 transitions. Word has length 1195 [2022-11-20 12:16:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:35,369 INFO L495 AbstractCegarLoop]: Abstraction has 12343 states and 17783 transitions. [2022-11-20 12:16:35,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 3 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) [2022-11-20 12:16:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 12343 states and 17783 transitions. [2022-11-20 12:16:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2022-11-20 12:16:35,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:35,431 INFO L195 NwaCegarLoop]: trace histogram [108, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:35,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:16:35,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:16:35,655 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:35,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1030683757, now seen corresponding path program 1 times [2022-11-20 12:16:35,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:35,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238669986] [2022-11-20 12:16:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:35,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:16:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:35,663 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:16:35,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 12:16:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:54,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 8336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:16:54,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18256 backedges. 9596 proven. 0 refuted. 0 times theorem prover too weak. 8660 trivial. 0 not checked. [2022-11-20 12:17:04,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:04,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:04,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238669986] [2022-11-20 12:17:04,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238669986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:04,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:04,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:17:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225890915] [2022-11-20 12:17:04,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:04,750 INFO L87 Difference]: Start difference. First operand 12343 states and 17783 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 3 states have call successors, (110), 3 states have call predecessors, (110), 3 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-20 12:17:08,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:08,731 INFO L93 Difference]: Finished difference Result 28136 states and 40719 transitions. [2022-11-20 12:17:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:08,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 3 states have call successors, (110), 3 states have call predecessors, (110), 3 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1216 [2022-11-20 12:17:08,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:08,795 INFO L225 Difference]: With dead ends: 28136 [2022-11-20 12:17:08,795 INFO L226 Difference]: Without dead ends: 18005 [2022-11-20 12:17:08,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1215 GetRequests, 1214 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:08,827 INFO L413 NwaCegarLoop]: 7858 mSDtfsCounter, 4202 mSDsluCounter, 4325 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 12183 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:08,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 12183 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 12:17:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18005 states. [2022-11-20 12:17:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18005 to 17998. [2022-11-20 12:17:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17998 states, 12754 states have (on average 1.350399874549161) internal successors, (17223), 13047 states have internal predecessors, (17223), 4240 states have call successors, (4240), 980 states have call predecessors, (4240), 1003 states have return successors, (4488), 4189 states have call predecessors, (4488), 4239 states have call successors, (4488) [2022-11-20 12:17:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17998 states to 17998 states and 25951 transitions. [2022-11-20 12:17:09,950 INFO L78 Accepts]: Start accepts. Automaton has 17998 states and 25951 transitions. Word has length 1216 [2022-11-20 12:17:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:09,952 INFO L495 AbstractCegarLoop]: Abstraction has 17998 states and 25951 transitions. [2022-11-20 12:17:09,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 3 states have call successors, (110), 3 states have call predecessors, (110), 3 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2022-11-20 12:17:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17998 states and 25951 transitions. [2022-11-20 12:17:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2022-11-20 12:17:10,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:10,019 INFO L195 NwaCegarLoop]: trace histogram [108, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:10,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:10,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:10,243 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 3823995, now seen corresponding path program 1 times [2022-11-20 12:17:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099429621] [2022-11-20 12:17:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:10,250 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:10,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:10,253 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:10,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 12:17:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:29,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 8336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:17:29,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 18256 backedges. 7076 proven. 0 refuted. 0 times theorem prover too weak. 11180 trivial. 0 not checked. [2022-11-20 12:17:29,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:29,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:29,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099429621] [2022-11-20 12:17:29,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099429621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:29,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:29,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:17:29,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472193873] [2022-11-20 12:17:29,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:29,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:17:29,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:29,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:17:29,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:29,664 INFO L87 Difference]: Start difference. First operand 17998 states and 25951 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-11-20 12:17:30,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:30,416 INFO L93 Difference]: Finished difference Result 33788 states and 48805 transitions. [2022-11-20 12:17:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:17:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 1216 [2022-11-20 12:17:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:30,495 INFO L225 Difference]: With dead ends: 33788 [2022-11-20 12:17:30,496 INFO L226 Difference]: Without dead ends: 18002 [2022-11-20 12:17:30,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1215 GetRequests, 1214 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:17:30,549 INFO L413 NwaCegarLoop]: 4527 mSDtfsCounter, 0 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9050 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:30,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9050 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:17:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18002 states. [2022-11-20 12:17:31,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18002 to 18002. [2022-11-20 12:17:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18002 states, 12758 states have (on average 1.3502900141087946) internal successors, (17227), 13051 states have internal predecessors, (17227), 4240 states have call successors, (4240), 980 states have call predecessors, (4240), 1003 states have return successors, (4488), 4189 states have call predecessors, (4488), 4239 states have call successors, (4488) [2022-11-20 12:17:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18002 states to 18002 states and 25955 transitions. [2022-11-20 12:17:31,639 INFO L78 Accepts]: Start accepts. Automaton has 18002 states and 25955 transitions. Word has length 1216 [2022-11-20 12:17:31,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:31,641 INFO L495 AbstractCegarLoop]: Abstraction has 18002 states and 25955 transitions. [2022-11-20 12:17:31,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2022-11-20 12:17:31,641 INFO L276 IsEmpty]: Start isEmpty. Operand 18002 states and 25955 transitions. [2022-11-20 12:17:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2022-11-20 12:17:31,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:31,707 INFO L195 NwaCegarLoop]: trace histogram [108, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:31,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-11-20 12:17:31,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:31,923 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:17:31,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1115325767, now seen corresponding path program 1 times [2022-11-20 12:17:31,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:31,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090718284] [2022-11-20 12:17:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:31,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:31,929 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:31,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-20 12:17:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:52,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 8338 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 12:17:52,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 18256 backedges. 7297 proven. 36 refuted. 0 times theorem prover too weak. 10923 trivial. 0 not checked. [2022-11-20 12:17:53,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18256 backedges. 938 proven. 271 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-11-20 12:17:59,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:59,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090718284] [2022-11-20 12:17:59,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090718284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:59,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:17:59,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-11-20 12:17:59,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590655889] [2022-11-20 12:17:59,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:59,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 12:17:59,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:59,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 12:17:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2022-11-20 12:17:59,085 INFO L87 Difference]: Start difference. First operand 18002 states and 25955 transitions. Second operand has 22 states, 22 states have (on average 15.590909090909092) internal successors, (343), 22 states have internal predecessors, (343), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2022-11-20 12:18:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:21,789 INFO L93 Difference]: Finished difference Result 36255 states and 52694 transitions. [2022-11-20 12:18:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-20 12:18:21,790 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 15.590909090909092) internal successors, (343), 22 states have internal predecessors, (343), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) Word has length 1216 [2022-11-20 12:18:21,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:21,864 INFO L225 Difference]: With dead ends: 36255 [2022-11-20 12:18:21,864 INFO L226 Difference]: Without dead ends: 18260 [2022-11-20 12:18:21,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2456 GetRequests, 2410 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=713, Invalid=1543, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 12:18:21,914 INFO L413 NwaCegarLoop]: 4514 mSDtfsCounter, 116 mSDsluCounter, 40503 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 45017 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 45017 Invalid, 1404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [181 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-11-20 12:18:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18260 states. [2022-11-20 12:18:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18260 to 18178. [2022-11-20 12:18:22,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18178 states, 12920 states have (on average 1.3553405572755417) internal successors, (17511), 13220 states have internal predecessors, (17511), 4240 states have call successors, (4240), 987 states have call predecessors, (4240), 1017 states have return successors, (4542), 4189 states have call predecessors, (4542), 4239 states have call successors, (4542) [2022-11-20 12:18:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18178 states to 18178 states and 26293 transitions. [2022-11-20 12:18:22,925 INFO L78 Accepts]: Start accepts. Automaton has 18178 states and 26293 transitions. Word has length 1216 [2022-11-20 12:18:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:22,927 INFO L495 AbstractCegarLoop]: Abstraction has 18178 states and 26293 transitions. [2022-11-20 12:18:22,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.590909090909092) internal successors, (343), 22 states have internal predecessors, (343), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2022-11-20 12:18:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 18178 states and 26293 transitions. [2022-11-20 12:18:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1227 [2022-11-20 12:18:22,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:22,994 INFO L195 NwaCegarLoop]: trace histogram [118, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:23,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:23,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:23,207 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:18:23,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash -255986407, now seen corresponding path program 2 times [2022-11-20 12:18:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:23,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870409460] [2022-11-20 12:18:23,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:18:23,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:23,215 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:23,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-20 12:19:05,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:19:05,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:19:06,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 8448 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 12:19:06,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 19631 backedges. 8537 proven. 171 refuted. 0 times theorem prover too weak. 10923 trivial. 0 not checked. [2022-11-20 12:19:10,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:19:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 19631 backedges. 1928 proven. 656 refuted. 0 times theorem prover too weak. 17047 trivial. 0 not checked. [2022-11-20 12:19:25,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:19:25,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870409460] [2022-11-20 12:19:25,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870409460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:19:25,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:19:25,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2022-11-20 12:19:25,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769967469] [2022-11-20 12:19:25,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:19:25,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-20 12:19:25,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:19:25,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-20 12:19:25,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2022-11-20 12:19:25,352 INFO L87 Difference]: Start difference. First operand 18178 states and 26293 transitions. Second operand has 42 states, 42 states have (on average 8.642857142857142) internal successors, (363), 42 states have internal predecessors, (363), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2022-11-20 12:20:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:59,235 INFO L93 Difference]: Finished difference Result 36917 states and 54656 transitions. [2022-11-20 12:20:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-20 12:20:59,240 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 8.642857142857142) internal successors, (363), 42 states have internal predecessors, (363), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) Word has length 1226 [2022-11-20 12:20:59,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:59,314 INFO L225 Difference]: With dead ends: 36917 [2022-11-20 12:20:59,314 INFO L226 Difference]: Without dead ends: 18722 [2022-11-20 12:20:59,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2506 GetRequests, 2410 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1316 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=2833, Invalid=6673, Unknown=0, NotChecked=0, Total=9506 [2022-11-20 12:20:59,368 INFO L413 NwaCegarLoop]: 4524 mSDtfsCounter, 452 mSDsluCounter, 90169 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 94693 SdHoareTripleChecker+Invalid, 5928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.9s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:59,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 94693 Invalid, 5928 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [601 Valid, 5327 Invalid, 0 Unknown, 0 Unchecked, 60.9s Time] [2022-11-20 12:20:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18722 states. [2022-11-20 12:21:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18722 to 18494. [2022-11-20 12:21:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18494 states, 13228 states have (on average 1.3681584517689749) internal successors, (18098), 13532 states have internal predecessors, (18098), 4240 states have call successors, (4240), 991 states have call predecessors, (4240), 1025 states have return successors, (4543), 4189 states have call predecessors, (4543), 4239 states have call successors, (4543) [2022-11-20 12:21:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18494 states to 18494 states and 26881 transitions. [2022-11-20 12:21:00,273 INFO L78 Accepts]: Start accepts. Automaton has 18494 states and 26881 transitions. Word has length 1226 [2022-11-20 12:21:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:21:00,274 INFO L495 AbstractCegarLoop]: Abstraction has 18494 states and 26881 transitions. [2022-11-20 12:21:00,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 8.642857142857142) internal successors, (363), 42 states have internal predecessors, (363), 2 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2022-11-20 12:21:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 18494 states and 26881 transitions. [2022-11-20 12:21:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1247 [2022-11-20 12:21:00,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:21:00,323 INFO L195 NwaCegarLoop]: trace histogram [138, 35, 35, 35, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 25, 25, 25, 24, 24, 24, 24, 24, 6, 6, 6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:00,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:21:00,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:00,535 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:21:00,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1451000281, now seen corresponding path program 3 times [2022-11-20 12:21:00,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:21:00,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307469148] [2022-11-20 12:21:00,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:21:00,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:21:00,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:21:00,541 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:21:00,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f033ffad-ae53-4761-a0ed-ce84134b53b0/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process