./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:35:15,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:15,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:15,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:15,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:15,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:15,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:15,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:15,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:15,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:15,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:15,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:15,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:15,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:15,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:15,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:15,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:15,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:15,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:15,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:15,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:15,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:15,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:15,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:15,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:15,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:15,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:15,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:15,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:15,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:15,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:15,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:15,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:15,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:15,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:15,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:15,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:15,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:15,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:15,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:15,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:15,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:35:15,641 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:15,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:15,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:15,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:15,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:15,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:15,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:15,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:15,646 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:15,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:15,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:35:15,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:15,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:15,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:15,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:15,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:15,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:15,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:15,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:15,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:15,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:15,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:15,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:15,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:15,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:15,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:35:15,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:35:15,653 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:15,653 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:15,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:15,654 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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2022-11-20 10:35:15,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:16,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:16,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:16,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:16,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:16,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:35:19,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:19,460 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:19,461 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:35:19,485 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/dd8ccde06/0e4ef96f8ac2484e8b89d2fa6ec270c3/FLAG7db585d2d [2022-11-20 10:35:19,504 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/dd8ccde06/0e4ef96f8ac2484e8b89d2fa6ec270c3 [2022-11-20 10:35:19,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:19,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:19,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:19,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:19,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:19,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:19" (1/1) ... [2022-11-20 10:35:19,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75984515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:19, skipping insertion in model container [2022-11-20 10:35:19,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:19" (1/1) ... [2022-11-20 10:35:19,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:19,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:20,660 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:675) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1469) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:35:20,671 INFO L158 Benchmark]: Toolchain (without parser) took 1162.32ms. Allocated memory is still 197.1MB. Free memory was 148.0MB in the beginning and 107.7MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 10:35:20,672 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:35:20,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1158.25ms. Allocated memory is still 197.1MB. Free memory was 147.5MB in the beginning and 108.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 10:35:20,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1158.25ms. Allocated memory is still 197.1MB. Free memory was 147.5MB in the beginning and 108.2MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. 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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:35:23,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:35:23,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:35:23,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:35:23,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:35:23,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:35:23,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:35:23,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:35:23,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:35:23,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:35:23,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:35:23,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:35:23,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:35:23,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:35:23,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:35:23,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:35:23,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:35:23,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:35:23,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:35:23,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:35:23,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:35:23,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:35:23,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:35:23,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:35:23,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:35:23,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:35:23,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:35:23,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:35:23,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:35:23,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:35:23,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:35:23,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:35:23,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:35:23,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:35:23,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:35:23,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:35:23,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:35:23,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:35:23,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:35:23,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:35:23,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:35:23,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:35:23,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:35:23,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:35:23,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:35:23,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:35:23,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:35:23,238 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:35:23,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:35:23,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:35:23,239 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:35:23,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:35:23,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:35:23,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:35:23,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:35:23,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:35:23,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:35:23,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:35:23,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:35:23,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:35:23,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:35:23,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:35:23,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:35:23,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:35:23,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:35:23,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:23,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:35:23,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:35:23,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:35:23,245 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:35:23,246 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:35:23,246 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:35:23,246 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:35:23,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:35:23,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:35:23,247 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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2022-11-20 10:35:23,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:35:23,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:35:23,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:35:23,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:35:23,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:35:23,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:35:26,775 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:35:27,251 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:35:27,251 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:35:27,294 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/4e292cc29/6fb2fb06d36741ad9df1b90ce92f5547/FLAG0b2eb8416 [2022-11-20 10:35:27,315 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/data/4e292cc29/6fb2fb06d36741ad9df1b90ce92f5547 [2022-11-20 10:35:27,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:35:27,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:35:27,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:27,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:35:27,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:35:27,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:27" (1/1) ... [2022-11-20 10:35:27,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f08b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:27, skipping insertion in model container [2022-11-20 10:35:27,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:35:27" (1/1) ... [2022-11-20 10:35:27,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:35:27,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:28,376 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2022-11-20 10:35:28,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:28,428 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:35:28,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:35:28,625 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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2022-11-20 10:35:28,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:28,665 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:35:28,951 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_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2022-11-20 10:35:28,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:35:28,995 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:35:28,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28 WrapperNode [2022-11-20 10:35:28,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:35:28,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:28,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:35:28,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:35:29,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,188 INFO L138 Inliner]: procedures = 149, calls = 537, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1621 [2022-11-20 10:35:29,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:35:29,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:35:29,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:35:29,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:35:29,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,317 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:35:29,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:35:29,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:35:29,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:35:29,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (1/1) ... [2022-11-20 10:35:29,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:35:29,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:35:29,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:35:29,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:35:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2022-11-20 10:35:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2022-11-20 10:35:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:35:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:35:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:35:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2022-11-20 10:35:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2022-11-20 10:35:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:35:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:35:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:35:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:35:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:35:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2022-11-20 10:35:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2022-11-20 10:35:29,424 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2022-11-20 10:35:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2022-11-20 10:35:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:35:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:35:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2022-11-20 10:35:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2022-11-20 10:35:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2022-11-20 10:35:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2022-11-20 10:35:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:35:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:35:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:35:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:35:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:35:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:35:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2022-11-20 10:35:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2022-11-20 10:35:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:35:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:35:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:35:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:35:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:35:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:35:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:35:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:35:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:35:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:35:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2022-11-20 10:35:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2022-11-20 10:35:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:35:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:35:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:35:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:35:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2022-11-20 10:35:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2022-11-20 10:35:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2022-11-20 10:35:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2022-11-20 10:35:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:35:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 10:35:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 10:35:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:35:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:35:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:35:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:35:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:35:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:35:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:35:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:35:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:35:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:35:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-20 10:35:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-20 10:35:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2022-11-20 10:35:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2022-11-20 10:35:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:35:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:35:29,439 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 10:35:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 10:35:29,977 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:35:29,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:35:34,716 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:35:38,342 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:35:38,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:35:38,361 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:35:38,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:38 BoogieIcfgContainer [2022-11-20 10:35:38,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:35:38,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:35:38,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:35:38,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:35:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:35:27" (1/3) ... [2022-11-20 10:35:38,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5601c129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:38, skipping insertion in model container [2022-11-20 10:35:38,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:35:28" (2/3) ... [2022-11-20 10:35:38,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5601c129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:35:38, skipping insertion in model container [2022-11-20 10:35:38,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:35:38" (3/3) ... [2022-11-20 10:35:38,378 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-20 10:35:38,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:35:38,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:35:38,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:35:38,483 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;@2ecd9bfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:35:38,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:35:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 346 states have (on average 1.2919075144508672) internal successors, (447), 358 states have internal predecessors, (447), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-11-20 10:35:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 10:35:38,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:38,500 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:35:38,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:38,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1119521097, now seen corresponding path program 1 times [2022-11-20 10:35:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:38,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974369628] [2022-11-20 10:35:38,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:38,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:38,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:38,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:38,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:35:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:38,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:35:39,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 10:35:39,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:39,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:39,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974369628] [2022-11-20 10:35:39,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974369628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:39,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:39,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:35:39,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58642105] [2022-11-20 10:35:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:39,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:35:39,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:39,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:35:39,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:35:39,124 INFO L87 Difference]: Start difference. First operand has 457 states, 346 states have (on average 1.2919075144508672) internal successors, (447), 358 states have internal predecessors, (447), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 10:35:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:39,259 INFO L93 Difference]: Finished difference Result 909 states and 1235 transitions. [2022-11-20 10:35:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:35:39,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2022-11-20 10:35:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:39,284 INFO L225 Difference]: With dead ends: 909 [2022-11-20 10:35:39,285 INFO L226 Difference]: Without dead ends: 439 [2022-11-20 10:35:39,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 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 10:35:39,300 INFO L413 NwaCegarLoop]: 605 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, 605 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 10:35:39,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:39,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-20 10:35:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2022-11-20 10:35:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 335 states have (on average 1.2597014925373133) internal successors, (422), 340 states have internal predecessors, (422), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-20 10:35:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 578 transitions. [2022-11-20 10:35:39,381 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 578 transitions. Word has length 46 [2022-11-20 10:35:39,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:39,382 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 578 transitions. [2022-11-20 10:35:39,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 10:35:39,382 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 578 transitions. [2022-11-20 10:35:39,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 10:35:39,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:39,385 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:35:39,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:39,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:39,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:39,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:39,601 INFO L85 PathProgramCache]: Analyzing trace with hash 275515595, now seen corresponding path program 1 times [2022-11-20 10:35:39,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:39,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144756557] [2022-11-20 10:35:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:39,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:39,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:39,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:39,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:35:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:40,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:35:40,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:35:40,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:40,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:40,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144756557] [2022-11-20 10:35:40,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144756557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:40,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:40,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:40,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59177152] [2022-11-20 10:35:40,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:40,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:40,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:40,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:40,174 INFO L87 Difference]: Start difference. First operand 439 states and 578 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 10:35:40,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:40,344 INFO L93 Difference]: Finished difference Result 876 states and 1154 transitions. [2022-11-20 10:35:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:35:40,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2022-11-20 10:35:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:40,349 INFO L225 Difference]: With dead ends: 876 [2022-11-20 10:35:40,349 INFO L226 Difference]: Without dead ends: 440 [2022-11-20 10:35:40,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:40,352 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 3 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:40,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1723 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-20 10:35:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-11-20 10:35:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 341 states have internal predecessors, (423), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-20 10:35:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 579 transitions. [2022-11-20 10:35:40,412 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 579 transitions. Word has length 46 [2022-11-20 10:35:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:40,413 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 579 transitions. [2022-11-20 10:35:40,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 10:35:40,414 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 579 transitions. [2022-11-20 10:35:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 10:35:40,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:40,416 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 10:35:40,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:40,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:40,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:40,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash 204883235, now seen corresponding path program 1 times [2022-11-20 10:35:40,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:40,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338348260] [2022-11-20 10:35:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:40,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:40,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:40,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:35:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:41,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:35:41,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:35:41,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:35:41,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:41,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338348260] [2022-11-20 10:35:41,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338348260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:41,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:35:41,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 10:35:41,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501424681] [2022-11-20 10:35:41,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:41,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:35:41,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:41,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:35:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:35:41,485 INFO L87 Difference]: Start difference. First operand 440 states and 579 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:35:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:41,987 INFO L93 Difference]: Finished difference Result 887 states and 1169 transitions. [2022-11-20 10:35:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:35:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2022-11-20 10:35:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:41,992 INFO L225 Difference]: With dead ends: 887 [2022-11-20 10:35:41,993 INFO L226 Difference]: Without dead ends: 450 [2022-11-20 10:35:41,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:35:42,000 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 21 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:42,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1726 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-20 10:35:42,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-11-20 10:35:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 345 states have (on average 1.2608695652173914) internal successors, (435), 350 states have internal predecessors, (435), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-11-20 10:35:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 591 transitions. [2022-11-20 10:35:42,055 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 591 transitions. Word has length 48 [2022-11-20 10:35:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:42,056 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 591 transitions. [2022-11-20 10:35:42,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:35:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 591 transitions. [2022-11-20 10:35:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 10:35:42,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:42,066 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-11-20 10:35:42,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:42,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:42,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:42,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash 647289995, now seen corresponding path program 2 times [2022-11-20 10:35:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:42,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603196115] [2022-11-20 10:35:42,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:42,284 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:42,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:42,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:42,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:35:42,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:35:42,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:42,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:35:42,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:42,781 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-20 10:35:42,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:42,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:42,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603196115] [2022-11-20 10:35:42,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603196115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:42,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:42,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:42,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456075143] [2022-11-20 10:35:42,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:42,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:35:42,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:42,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:35:42,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:42,788 INFO L87 Difference]: Start difference. First operand 450 states and 591 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:35:42,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:42,929 INFO L93 Difference]: Finished difference Result 1273 states and 1682 transitions. [2022-11-20 10:35:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:35:42,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-11-20 10:35:42,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:42,940 INFO L225 Difference]: With dead ends: 1273 [2022-11-20 10:35:42,940 INFO L226 Difference]: Without dead ends: 848 [2022-11-20 10:35:42,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:42,945 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 527 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:42,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1210 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:42,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-11-20 10:35:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 845. [2022-11-20 10:35:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 649 states have (on average 1.263482280431433) internal successors, (820), 658 states have internal predecessors, (820), 149 states have call successors, (149), 47 states have call predecessors, (149), 46 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-11-20 10:35:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1116 transitions. [2022-11-20 10:35:43,017 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1116 transitions. Word has length 52 [2022-11-20 10:35:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:43,019 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1116 transitions. [2022-11-20 10:35:43,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:35:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1116 transitions. [2022-11-20 10:35:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 10:35:43,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:43,023 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2022-11-20 10:35:43,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:43,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:43,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:43,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1975753054, now seen corresponding path program 1 times [2022-11-20 10:35:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:43,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668877723] [2022-11-20 10:35:43,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:43,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:43,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:43,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:43,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:35:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:43,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:35:43,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:35:43,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 10:35:44,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:44,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668877723] [2022-11-20 10:35:44,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668877723] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:44,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:35:44,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 10:35:44,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008880641] [2022-11-20 10:35:44,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:44,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 10:35:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 10:35:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:35:44,893 INFO L87 Difference]: Start difference. First operand 845 states and 1116 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:35:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:46,158 INFO L93 Difference]: Finished difference Result 1693 states and 2238 transitions. [2022-11-20 10:35:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 10:35:46,159 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2022-11-20 10:35:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:46,167 INFO L225 Difference]: With dead ends: 1693 [2022-11-20 10:35:46,167 INFO L226 Difference]: Without dead ends: 857 [2022-11-20 10:35:46,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:35:46,171 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 60 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:46,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4605 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:35:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-11-20 10:35:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 851. [2022-11-20 10:35:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 655 states have (on average 1.2625954198473281) internal successors, (827), 664 states have internal predecessors, (827), 149 states have call successors, (149), 47 states have call predecessors, (149), 46 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-11-20 10:35:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1123 transitions. [2022-11-20 10:35:46,227 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1123 transitions. Word has length 55 [2022-11-20 10:35:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:46,228 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1123 transitions. [2022-11-20 10:35:46,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 10:35:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1123 transitions. [2022-11-20 10:35:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 10:35:46,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:46,230 INFO L195 NwaCegarLoop]: trace histogram [10, 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] [2022-11-20 10:35:46,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:46,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:46,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1015347678, now seen corresponding path program 2 times [2022-11-20 10:35:46,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:46,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822834664] [2022-11-20 10:35:46,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:46,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:46,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:46,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:35:46,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:35:46,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:46,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:35:46,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-11-20 10:35:47,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:47,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:47,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822834664] [2022-11-20 10:35:47,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822834664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:47,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:47,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:35:47,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513998767] [2022-11-20 10:35:47,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:47,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:35:47,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:47,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:35:47,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:47,052 INFO L87 Difference]: Start difference. First operand 851 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:35:47,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:47,164 INFO L93 Difference]: Finished difference Result 1655 states and 2187 transitions. [2022-11-20 10:35:47,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:35:47,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2022-11-20 10:35:47,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:47,174 INFO L225 Difference]: With dead ends: 1655 [2022-11-20 10:35:47,174 INFO L226 Difference]: Without dead ends: 1646 [2022-11-20 10:35:47,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:47,176 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 529 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:47,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1207 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:35:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-20 10:35:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2022-11-20 10:35:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1266 states have (on average 1.2622432859399684) internal successors, (1598), 1283 states have internal predecessors, (1598), 289 states have call successors, (289), 91 states have call predecessors, (289), 90 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2022-11-20 10:35:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2174 transitions. [2022-11-20 10:35:47,269 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2174 transitions. Word has length 59 [2022-11-20 10:35:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:47,270 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2174 transitions. [2022-11-20 10:35:47,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:35:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2174 transitions. [2022-11-20 10:35:47,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-20 10:35:47,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:47,274 INFO L195 NwaCegarLoop]: trace histogram [10, 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] [2022-11-20 10:35:47,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:47,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:47,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -636118632, now seen corresponding path program 1 times [2022-11-20 10:35:47,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:47,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932241092] [2022-11-20 10:35:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:47,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:47,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:47,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:47,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:35:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:48,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:35:48,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 10:35:48,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:35:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 10:35:48,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:48,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932241092] [2022-11-20 10:35:48,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932241092] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:35:48,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:35:48,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 10:35:48,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399545839] [2022-11-20 10:35:48,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:35:48,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 10:35:48,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:48,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 10:35:48,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:35:48,761 INFO L87 Difference]: Start difference. First operand 1646 states and 2174 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:35:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:49,199 INFO L93 Difference]: Finished difference Result 3268 states and 4318 transitions. [2022-11-20 10:35:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:35:49,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2022-11-20 10:35:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:49,210 INFO L225 Difference]: With dead ends: 3268 [2022-11-20 10:35:49,210 INFO L226 Difference]: Without dead ends: 1646 [2022-11-20 10:35:49,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-20 10:35:49,217 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 31 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:49,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2869 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:35:49,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-11-20 10:35:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2022-11-20 10:35:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1266 states have (on average 1.2590837282780412) internal successors, (1594), 1283 states have internal predecessors, (1594), 289 states have call successors, (289), 91 states have call predecessors, (289), 90 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2022-11-20 10:35:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2170 transitions. [2022-11-20 10:35:49,312 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2170 transitions. Word has length 120 [2022-11-20 10:35:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:49,313 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2170 transitions. [2022-11-20 10:35:49,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 10:35:49,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2170 transitions. [2022-11-20 10:35:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 10:35:49,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:49,324 INFO L195 NwaCegarLoop]: trace histogram [12, 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] [2022-11-20 10:35:49,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:49,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:49,527 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:49,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1966175016, now seen corresponding path program 2 times [2022-11-20 10:35:49,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:49,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364535896] [2022-11-20 10:35:49,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:35:49,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:49,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:49,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:35:51,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:35:51,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:35:51,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:35:51,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-20 10:35:51,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:51,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:51,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364535896] [2022-11-20 10:35:51,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364535896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:51,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:51,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:35:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779184932] [2022-11-20 10:35:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:51,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:35:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:35:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:51,131 INFO L87 Difference]: Start difference. First operand 1646 states and 2170 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:35:51,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:51,398 INFO L93 Difference]: Finished difference Result 4655 states and 6134 transitions. [2022-11-20 10:35:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:35:51,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2022-11-20 10:35:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:51,415 INFO L225 Difference]: With dead ends: 4655 [2022-11-20 10:35:51,415 INFO L226 Difference]: Without dead ends: 3040 [2022-11-20 10:35:51,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:35:51,421 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 485 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:51,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1206 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:51,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2022-11-20 10:35:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 3032. [2022-11-20 10:35:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 2320 states have (on average 1.2577586206896552) internal successors, (2918), 2353 states have internal predecessors, (2918), 535 states have call successors, (535), 177 states have call predecessors, (535), 176 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2022-11-20 10:35:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 3986 transitions. [2022-11-20 10:35:51,628 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 3986 transitions. Word has length 122 [2022-11-20 10:35:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:51,628 INFO L495 AbstractCegarLoop]: Abstraction has 3032 states and 3986 transitions. [2022-11-20 10:35:51,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:35:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 3986 transitions. [2022-11-20 10:35:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 10:35:51,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:51,636 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:51,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:51,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:51,857 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1914519532, now seen corresponding path program 1 times [2022-11-20 10:35:51,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:51,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041018223] [2022-11-20 10:35:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:51,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:51,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:51,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:35:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:52,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:35:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-20 10:35:52,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:52,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:52,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041018223] [2022-11-20 10:35:52,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041018223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:52,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:52,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:35:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077845521] [2022-11-20 10:35:52,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:52,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:35:52,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:52,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:35:52,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:35:52,763 INFO L87 Difference]: Start difference. First operand 3032 states and 3986 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:35:53,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:53,032 INFO L93 Difference]: Finished difference Result 6040 states and 7951 transitions. [2022-11-20 10:35:53,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:53,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2022-11-20 10:35:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:53,050 INFO L225 Difference]: With dead ends: 6040 [2022-11-20 10:35:53,051 INFO L226 Difference]: Without dead ends: 3043 [2022-11-20 10:35:53,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:53,063 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 10 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:53,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1727 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-11-20 10:35:53,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 3035. [2022-11-20 10:35:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 2323 states have (on average 1.256564786913474) internal successors, (2919), 2356 states have internal predecessors, (2919), 535 states have call successors, (535), 177 states have call predecessors, (535), 176 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2022-11-20 10:35:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 3987 transitions. [2022-11-20 10:35:53,251 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 3987 transitions. Word has length 165 [2022-11-20 10:35:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:53,252 INFO L495 AbstractCegarLoop]: Abstraction has 3035 states and 3987 transitions. [2022-11-20 10:35:53,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:35:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 3987 transitions. [2022-11-20 10:35:53,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 10:35:53,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:53,259 INFO L195 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:53,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:35:53,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:53,477 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1601551212, now seen corresponding path program 1 times [2022-11-20 10:35:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:53,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534780111] [2022-11-20 10:35:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:53,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:53,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:53,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:35:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:35:54,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:35:54,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:35:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-11-20 10:35:54,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:35:54,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:35:54,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534780111] [2022-11-20 10:35:54,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534780111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:35:54,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:35:54,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:35:54,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881039793] [2022-11-20 10:35:54,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:35:54,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:35:54,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:35:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:35:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:54,390 INFO L87 Difference]: Start difference. First operand 3035 states and 3987 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:35:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:35:54,642 INFO L93 Difference]: Finished difference Result 6049 states and 8005 transitions. [2022-11-20 10:35:54,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:35:54,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 166 [2022-11-20 10:35:54,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:35:54,661 INFO L225 Difference]: With dead ends: 6049 [2022-11-20 10:35:54,662 INFO L226 Difference]: Without dead ends: 3051 [2022-11-20 10:35:54,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:35:54,672 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:35:54,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2292 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:35:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2022-11-20 10:35:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3039. [2022-11-20 10:35:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 2325 states have (on average 1.2563440860215054) internal successors, (2921), 2360 states have internal predecessors, (2921), 535 states have call successors, (535), 177 states have call predecessors, (535), 178 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2022-11-20 10:35:54,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 4005 transitions. [2022-11-20 10:35:54,881 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 4005 transitions. Word has length 166 [2022-11-20 10:35:54,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:35:54,881 INFO L495 AbstractCegarLoop]: Abstraction has 3039 states and 4005 transitions. [2022-11-20 10:35:54,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 10:35:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 4005 transitions. [2022-11-20 10:35:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-20 10:35:54,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:35:54,891 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:35:54,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -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 10:35:55,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:55,115 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:35:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:35:55,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1476408975, now seen corresponding path program 1 times [2022-11-20 10:35:55,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:35:55,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554463492] [2022-11-20 10:35:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:35:55,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:35:55,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:35:55,119 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:35:55,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -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 10:35:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:35:58,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:36:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:36:02,992 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 10:36:02,992 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:36:02,993 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:36:03,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -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 10:36:03,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:36:03,221 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-20 10:36:03,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:36:03,268 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,274 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,274 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,274 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,275 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,275 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,275 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,275 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,276 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,276 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,277 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,277 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,277 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,278 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,278 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,278 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,279 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,279 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,279 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,279 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,279 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,280 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,280 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,280 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,281 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,283 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,284 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,284 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,285 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,285 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,286 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,286 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,286 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,286 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,286 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,287 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,287 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,287 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,287 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,287 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,288 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,288 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,288 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,288 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,289 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,289 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,289 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 10:36:03,289 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 10:36:03,391 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Expected only CPrimitive but got *CHAR at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateBitvecLiteral(CACSL2BoogieBacktranslator.java:1212) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1021) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramStateEntry(CACSL2BoogieBacktranslator.java:658) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramState(CACSL2BoogieBacktranslator.java:633) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateProgramExecution(CACSL2BoogieBacktranslator.java:300) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:217) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:582) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:36:03,404 INFO L158 Benchmark]: Toolchain (without parser) took 36081.44ms. Allocated memory was 81.8MB in the beginning and 291.5MB in the end (delta: 209.7MB). Free memory was 37.2MB in the beginning and 95.1MB in the end (delta: -57.8MB). Peak memory consumption was 156.0MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,404 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:36:03,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1668.60ms. Allocated memory was 81.8MB in the beginning and 121.6MB in the end (delta: 39.8MB). Free memory was 36.9MB in the beginning and 55.9MB in the end (delta: -19.0MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 191.74ms. Allocated memory is still 121.6MB. Free memory was 55.9MB in the beginning and 81.5MB in the end (delta: -25.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,405 INFO L158 Benchmark]: Boogie Preprocessor took 147.96ms. Allocated memory is still 121.6MB. Free memory was 81.5MB in the beginning and 70.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,406 INFO L158 Benchmark]: RCFGBuilder took 9027.97ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 70.3MB in the beginning and 110.5MB in the end (delta: -40.2MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,406 INFO L158 Benchmark]: TraceAbstraction took 25034.79ms. Allocated memory was 161.5MB in the beginning and 291.5MB in the end (delta: 130.0MB). Free memory was 109.5MB in the beginning and 95.1MB in the end (delta: 14.4MB). Peak memory consumption was 144.4MB. Max. memory is 16.1GB. [2022-11-20 10:36:03,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1668.60ms. Allocated memory was 81.8MB in the beginning and 121.6MB in the end (delta: 39.8MB). Free memory was 36.9MB in the beginning and 55.9MB in the end (delta: -19.0MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 191.74ms. Allocated memory is still 121.6MB. Free memory was 55.9MB in the beginning and 81.5MB in the end (delta: -25.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 147.96ms. Allocated memory is still 121.6MB. Free memory was 81.5MB in the beginning and 70.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 9027.97ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 70.3MB in the beginning and 110.5MB in the end (delta: -40.2MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25034.79ms. Allocated memory was 161.5MB in the beginning and 291.5MB in the end (delta: 130.0MB). Free memory was 109.5MB in the beginning and 95.1MB in the end (delta: 14.4MB). Peak memory consumption was 144.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: AssertionError: Expected only CPrimitive but got *CHAR de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Expected only CPrimitive but got *CHAR: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:356) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 10:36:03,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36dd4dbc-b805-426c-9ea3-ec13a0f26ece/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Expected only CPrimitive but got *CHAR