./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.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_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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_4f23b575-9d07-4276-b506-c887ee6f4f28/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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:45:22,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:45:22,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:45:22,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:45:22,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:45:22,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:45:22,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:45:22,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:45:22,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:45:22,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:45:22,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:45:22,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:45:22,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:45:22,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:45:22,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:45:22,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:45:22,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:45:22,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:45:22,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:45:22,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:45:22,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:45:22,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:45:22,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:45:22,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:45:22,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:45:22,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:45:22,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:45:22,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:45:22,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:45:22,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:45:22,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:45:22,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:45:22,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:45:22,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:45:22,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:45:22,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:45:22,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:45:22,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:45:22,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:45:22,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:45:22,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:45:22,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:45:22,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:45:22,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:45:22,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:45:22,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:45:22,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:45:22,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:45:22,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:45:22,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:45:22,594 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:45:22,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:45:22,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:45:22,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:45:22,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:45:22,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:45:22,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:45:22,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:45:22,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:45:22,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:45:22,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:45:22,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:45:22,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:45:22,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:45:22,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:45:22,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:45:22,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:45:22,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:45:22,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:45:22,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:45:22,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:45:22,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:45:22,601 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_4f23b575-9d07-4276-b506-c887ee6f4f28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2022-11-20 12:45:22,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:45:22,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:45:22,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:45:22,961 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:45:22,961 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:45:22,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2022-11-20 12:45:26,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:45:27,277 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:45:27,278 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2022-11-20 12:45:27,320 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/f0468670b/db5a45beb6d24c00a82a29a79c6d247d/FLAG0110ea94e [2022-11-20 12:45:27,338 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/f0468670b/db5a45beb6d24c00a82a29a79c6d247d [2022-11-20 12:45:27,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:45:27,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:45:27,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:45:27,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:45:27,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:45:27,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:27" (1/1) ... [2022-11-20 12:45:27,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bb27f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:27, skipping insertion in model container [2022-11-20 12:45:27,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:27" (1/1) ... [2022-11-20 12:45:27,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:45:27,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:45:28,899 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1669) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1646) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 12:45:28,911 INFO L158 Benchmark]: Toolchain (without parser) took 1566.70ms. Allocated memory is still 159.4MB. Free memory was 117.5MB in the beginning and 63.0MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-20 12:45:28,912 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:45:28,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1563.78ms. Allocated memory is still 159.4MB. Free memory was 117.5MB in the beginning and 63.0MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-20 12:45:28,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory was 79.2MB in the beginning and 79.1MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1563.78ms. Allocated memory is still 159.4MB. Free memory was 117.5MB in the beginning and 63.0MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. 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_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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_4f23b575-9d07-4276-b506-c887ee6f4f28/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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:45:31,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:45:31,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:45:31,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:45:31,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:45:31,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:45:31,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:45:31,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:45:31,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:45:31,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:45:31,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:45:31,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:45:31,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:45:31,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:45:31,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:45:31,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:45:31,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:45:31,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:45:31,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:45:31,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:45:31,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:45:31,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:45:31,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:45:31,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:45:31,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:45:31,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:45:31,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:45:31,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:45:31,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:45:31,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:45:31,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:45:31,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:45:31,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:45:31,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:45:31,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:45:31,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:45:31,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:45:31,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:45:31,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:45:31,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:45:31,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:45:31,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:45:32,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:45:32,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:45:32,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:45:32,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:45:32,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:45:32,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:45:32,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:45:32,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:45:32,013 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:45:32,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:45:32,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:45:32,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:45:32,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:45:32,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:45:32,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:45:32,015 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:45:32,015 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:45:32,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:45:32,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:45:32,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:45:32,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:45:32,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:45:32,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:45:32,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:45:32,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:45:32,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:45:32,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:45:32,017 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:45:32,018 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:45:32,018 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:45:32,018 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:45:32,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:45:32,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:45:32,019 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_4f23b575-9d07-4276-b506-c887ee6f4f28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2022-11-20 12:45:32,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:45:32,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:45:32,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:45:32,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:45:32,524 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:45:32,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2022-11-20 12:45:36,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:45:37,105 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:45:37,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2022-11-20 12:45:37,156 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/6f28ea814/364357b395b946b4adf0dd04a8123748/FLAG681890644 [2022-11-20 12:45:37,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/data/6f28ea814/364357b395b946b4adf0dd04a8123748 [2022-11-20 12:45:37,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:45:37,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:45:37,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:45:37,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:45:37,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:45:37,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:37" (1/1) ... [2022-11-20 12:45:37,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727e1f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:37, skipping insertion in model container [2022-11-20 12:45:37,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:45:37" (1/1) ... [2022-11-20 12:45:37,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:45:37,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:45:38,880 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_4f23b575-9d07-4276-b506-c887ee6f4f28/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2022-11-20 12:45:38,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:45:38,986 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:45:39,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:45:39,381 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_4f23b575-9d07-4276-b506-c887ee6f4f28/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2022-11-20 12:45:39,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:45:39,403 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:45:39,737 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_4f23b575-9d07-4276-b506-c887ee6f4f28/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2022-11-20 12:45:39,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:45:39,919 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:45:39,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39 WrapperNode [2022-11-20 12:45:39,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:45:39,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:45:39,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:45:39,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:45:39,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,192 INFO L138 Inliner]: procedures = 160, calls = 1210, calls flagged for inlining = 64, calls inlined = 64, statements flattened = 2664 [2022-11-20 12:45:40,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:45:40,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:45:40,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:45:40,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:45:40,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:45:40,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:45:40,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:45:40,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:45:40,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (1/1) ... [2022-11-20 12:45:40,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:45:40,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:45:40,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:45:40,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:45:40,725 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2022-11-20 12:45:40,725 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2022-11-20 12:45:40,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:45:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:45:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:45:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:45:40,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:45:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:45:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2022-11-20 12:45:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2022-11-20 12:45:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2022-11-20 12:45:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2022-11-20 12:45:40,728 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2022-11-20 12:45:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2022-11-20 12:45:40,728 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2022-11-20 12:45:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2022-11-20 12:45:40,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:45:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:45:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-20 12:45:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-20 12:45:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:45:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:45:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2022-11-20 12:45:40,753 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2022-11-20 12:45:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2022-11-20 12:45:40,754 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2022-11-20 12:45:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2022-11-20 12:45:40,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2022-11-20 12:45:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:45:40,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:45:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 12:45:40,757 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 12:45:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2022-11-20 12:45:40,757 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2022-11-20 12:45:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 12:45:40,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 12:45:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 12:45:40,758 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 12:45:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:45:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2022-11-20 12:45:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2022-11-20 12:45:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:45:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:45:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:45:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-20 12:45:40,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-20 12:45:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:45:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:45:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2022-11-20 12:45:40,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2022-11-20 12:45:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-11-20 12:45:40,762 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-11-20 12:45:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2022-11-20 12:45:40,764 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2022-11-20 12:45:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:45:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2022-11-20 12:45:40,764 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2022-11-20 12:45:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2022-11-20 12:45:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2022-11-20 12:45:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2022-11-20 12:45:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2022-11-20 12:45:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2022-11-20 12:45:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2022-11-20 12:45:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:45:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:45:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2022-11-20 12:45:40,767 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2022-11-20 12:45:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:45:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:45:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2022-11-20 12:45:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2022-11-20 12:45:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:45:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2022-11-20 12:45:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2022-11-20 12:45:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2022-11-20 12:45:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2022-11-20 12:45:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:45:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2022-11-20 12:45:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2022-11-20 12:45:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2022-11-20 12:45:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2022-11-20 12:45:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:45:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:45:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:45:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:45:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:45:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:45:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:45:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:45:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2022-11-20 12:45:40,775 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2022-11-20 12:45:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 12:45:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 12:45:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2022-11-20 12:45:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2022-11-20 12:45:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:45:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2022-11-20 12:45:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2022-11-20 12:45:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:45:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:45:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 12:45:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 12:45:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 12:45:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 12:45:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:45:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-20 12:45:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-20 12:45:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2022-11-20 12:45:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2022-11-20 12:45:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2022-11-20 12:45:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2022-11-20 12:45:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2022-11-20 12:45:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2022-11-20 12:45:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2022-11-20 12:45:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2022-11-20 12:45:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2022-11-20 12:45:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2022-11-20 12:45:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2022-11-20 12:45:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2022-11-20 12:45:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 12:45:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:45:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:45:41,760 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:45:41,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:46:39,321 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:46:39,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:46:39,351 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:46:39,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:46:39 BoogieIcfgContainer [2022-11-20 12:46:39,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:46:39,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:46:39,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:46:39,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:46:39,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:45:37" (1/3) ... [2022-11-20 12:46:39,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad7728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:46:39, skipping insertion in model container [2022-11-20 12:46:39,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:45:39" (2/3) ... [2022-11-20 12:46:39,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad7728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:46:39, skipping insertion in model container [2022-11-20 12:46:39,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:46:39" (3/3) ... [2022-11-20 12:46:39,411 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2022-11-20 12:46:39,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:46:39,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:46:39,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:46:39,550 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;@3c67a28d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:46:39,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:46:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 964 states, 704 states have (on average 1.3778409090909092) internal successors, (970), 712 states have internal predecessors, (970), 212 states have call successors, (212), 46 states have call predecessors, (212), 46 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2022-11-20 12:46:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 12:46:39,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:39,616 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-11-20 12:46:39,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1848231999, now seen corresponding path program 1 times [2022-11-20 12:46:39,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:39,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608840415] [2022-11-20 12:46:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:39,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:39,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:39,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:46:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:41,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:46:41,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 12:46:41,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:41,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:41,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608840415] [2022-11-20 12:46:41,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608840415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:41,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:41,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:46:41,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842233695] [2022-11-20 12:46:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:41,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:46:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:46:41,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:46:41,885 INFO L87 Difference]: Start difference. First operand has 964 states, 704 states have (on average 1.3778409090909092) internal successors, (970), 712 states have internal predecessors, (970), 212 states have call successors, (212), 46 states have call predecessors, (212), 46 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:46:42,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:42,357 INFO L93 Difference]: Finished difference Result 1931 states and 2816 transitions. [2022-11-20 12:46:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:46:42,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2022-11-20 12:46:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:42,398 INFO L225 Difference]: With dead ends: 1931 [2022-11-20 12:46:42,399 INFO L226 Difference]: Without dead ends: 955 [2022-11-20 12:46:42,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:46:42,421 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 3 mSDsluCounter, 4153 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5542 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:42,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5542 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:46:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-20 12:46:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2022-11-20 12:46:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 696 states have (on average 1.3692528735632183) internal successors, (953), 704 states have internal predecessors, (953), 211 states have call successors, (211), 46 states have call predecessors, (211), 47 states have return successors, (218), 211 states have call predecessors, (218), 211 states have call successors, (218) [2022-11-20 12:46:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1382 transitions. [2022-11-20 12:46:42,636 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1382 transitions. Word has length 87 [2022-11-20 12:46:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:42,637 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 1382 transitions. [2022-11-20 12:46:42,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:46:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1382 transitions. [2022-11-20 12:46:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-20 12:46:42,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:42,647 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2022-11-20 12:46:42,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 12:46:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:42,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:42,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1437490751, now seen corresponding path program 1 times [2022-11-20 12:46:42,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:42,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324865068] [2022-11-20 12:46:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:46:42,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:42,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:42,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:42,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:46:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:46:44,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:46:44,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:46:44,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:46:44,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:46:44,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324865068] [2022-11-20 12:46:44,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324865068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:46:44,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:46:44,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:46:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013573609] [2022-11-20 12:46:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:46:44,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:46:44,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:46:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:46:44,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:46:44,930 INFO L87 Difference]: Start difference. First operand 955 states and 1382 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:46:45,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:46:45,247 INFO L93 Difference]: Finished difference Result 1902 states and 2751 transitions. [2022-11-20 12:46:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:46:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2022-11-20 12:46:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:46:45,258 INFO L225 Difference]: With dead ends: 1902 [2022-11-20 12:46:45,258 INFO L226 Difference]: Without dead ends: 955 [2022-11-20 12:46:45,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:46:45,265 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 0 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:46:45,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5477 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:46:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-20 12:46:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2022-11-20 12:46:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 696 states have (on average 1.3692528735632183) internal successors, (953), 704 states have internal predecessors, (953), 211 states have call successors, (211), 46 states have call predecessors, (211), 47 states have return successors, (217), 211 states have call predecessors, (217), 211 states have call successors, (217) [2022-11-20 12:46:45,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1381 transitions. [2022-11-20 12:46:45,337 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1381 transitions. Word has length 90 [2022-11-20 12:46:45,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:46:45,338 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 1381 transitions. [2022-11-20 12:46:45,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 12:46:45,339 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1381 transitions. [2022-11-20 12:46:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 12:46:45,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:46:45,344 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:46:45,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:46:45,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:45,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:46:45,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:46:45,568 INFO L85 PathProgramCache]: Analyzing trace with hash 629483469, now seen corresponding path program 2 times [2022-11-20 12:46:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:46:45,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209442987] [2022-11-20 12:46:45,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:46:45,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:46:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:46:45,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:46:45,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:46:52,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:46:52,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:46:52,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 12:46:52,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:46:53,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 169 [2022-11-20 12:46:53,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 121 [2022-11-20 12:46:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:46:53,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:46:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:47:12,617 WARN L233 SmtUtils]: Spent 19.03s on a formula simplification. DAG size of input: 99 DAG size of output: 52 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-20 12:47:12,621 INFO L321 Elim1Store]: treesize reduction 806, result has 24.0 percent of original size [2022-11-20 12:47:12,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 121 treesize of output 304 [2022-11-20 12:47:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 12:47:35,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:47:35,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:47:35,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209442987] [2022-11-20 12:47:35,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209442987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:35,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:35,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:47:35,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340891068] [2022-11-20 12:47:35,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:35,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:47:35,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:47:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:47:35,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:47:35,659 INFO L87 Difference]: Start difference. First operand 955 states and 1381 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:47:37,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:39,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:42,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:46,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:50,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:52,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:54,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:47:55,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:01,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:03,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:05,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:07,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:10,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:11,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:14,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:16,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:18,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:20,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:22,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:24,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:26,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:28,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:30,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:31,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:33,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:35,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:36,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:38,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:40,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:45,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:47,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:48:52,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:00,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:02,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:09,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:11,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:14,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:16,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:18,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:20,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:22,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:49:31,626 INFO L93 Difference]: Finished difference Result 1903 states and 2748 transitions. [2022-11-20 12:49:31,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:49:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2022-11-20 12:49:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:49:31,640 INFO L225 Difference]: With dead ends: 1903 [2022-11-20 12:49:31,641 INFO L226 Difference]: Without dead ends: 963 [2022-11-20 12:49:31,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:49:31,647 INFO L413 NwaCegarLoop]: 1375 mSDtfsCounter, 9 mSDsluCounter, 8059 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9434 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 909 IncrementalHoareTripleChecker+Unchecked, 115.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:49:31,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9434 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 24 Unknown, 909 Unchecked, 115.4s Time] [2022-11-20 12:49:31,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-11-20 12:49:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 960. [2022-11-20 12:49:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 700 states have (on average 1.3671428571428572) internal successors, (957), 708 states have internal predecessors, (957), 212 states have call successors, (212), 47 states have call predecessors, (212), 47 states have return successors, (218), 211 states have call predecessors, (218), 212 states have call successors, (218) [2022-11-20 12:49:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1387 transitions. [2022-11-20 12:49:31,699 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1387 transitions. Word has length 93 [2022-11-20 12:49:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:49:31,700 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 1387 transitions. [2022-11-20 12:49:31,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:49:31,700 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1387 transitions. [2022-11-20 12:49:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 12:49:31,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:49:31,705 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:49:31,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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)] Ended with exit code 0 [2022-11-20 12:49:31,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:49:31,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:49:31,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:49:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash 495469963, now seen corresponding path program 1 times [2022-11-20 12:49:31,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:49:31,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611318806] [2022-11-20 12:49:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:49:31,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:49:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:49:31,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:49:31,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:49:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:49:40,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-20 12:49:40,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:49:41,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:49:45,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:49:45,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:49:45,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:49:45,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:49:45,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:49:46,293 INFO L321 Elim1Store]: treesize reduction 134, result has 44.6 percent of original size [2022-11-20 12:49:46,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 185 treesize of output 158 [2022-11-20 12:49:46,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 116 [2022-11-20 12:49:46,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 99 [2022-11-20 12:49:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:49:50,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:49:54,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 154 [2022-11-20 12:49:54,052 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:49:54,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 1 [2022-11-20 12:49:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 12:49:54,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:49:54,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611318806] [2022-11-20 12:49:54,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611318806] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:49:54,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:49:54,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2022-11-20 12:49:54,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525647384] [2022-11-20 12:49:54,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:49:54,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:49:54,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:49:54,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:49:54,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:49:54,357 INFO L87 Difference]: Start difference. First operand 960 states and 1387 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:49:56,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:49:58,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:00,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:03,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:05,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:06,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:09,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:11,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:13,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:16,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:18,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:20,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:24,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:26,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:30,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:31,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:35,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:37,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:39,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:41,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:43,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:46,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:49,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:50,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:52,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:54,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:56,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:50:59,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:01,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:03,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:05,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:07,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:09,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:11,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:12,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:14,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:16,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:18,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:19,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:22,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:24,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:26,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:30,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:32,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:34,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:38,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:47,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:48,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:50,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:51:59,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:01,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:03,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:04,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:06,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:07,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:10,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:12,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:14,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:16,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:18,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:20,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:52:32,034 INFO L93 Difference]: Finished difference Result 1915 states and 2770 transitions. [2022-11-20 12:52:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:52:32,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2022-11-20 12:52:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:52:32,047 INFO L225 Difference]: With dead ends: 1915 [2022-11-20 12:52:32,047 INFO L226 Difference]: Without dead ends: 978 [2022-11-20 12:52:32,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 153 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:52:32,053 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 24 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 2 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 154.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 754 IncrementalHoareTripleChecker+Unchecked, 157.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:52:32,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 8274 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 685 Invalid, 37 Unknown, 754 Unchecked, 157.5s Time] [2022-11-20 12:52:32,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-20 12:52:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 963. [2022-11-20 12:52:32,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 702 states have (on average 1.3660968660968662) internal successors, (959), 711 states have internal predecessors, (959), 212 states have call successors, (212), 47 states have call predecessors, (212), 48 states have return successors, (220), 211 states have call predecessors, (220), 212 states have call successors, (220) [2022-11-20 12:52:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1391 transitions. [2022-11-20 12:52:32,102 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1391 transitions. Word has length 93 [2022-11-20 12:52:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:52:32,103 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1391 transitions. [2022-11-20 12:52:32,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:52:32,104 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1391 transitions. [2022-11-20 12:52:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 12:52:32,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:52:32,107 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:52:32,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:52:32,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:52:32,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:52:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:52:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1009350189, now seen corresponding path program 1 times [2022-11-20 12:52:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:52:32,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717606361] [2022-11-20 12:52:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:52:32,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:52:32,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:52:32,326 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:52:32,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:52:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:52:39,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-20 12:52:39,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:52:40,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:52:43,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 215 [2022-11-20 12:52:43,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:52:43,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:52:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:52:43,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:52:43,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:52:44,298 INFO L321 Elim1Store]: treesize reduction 109, result has 41.1 percent of original size [2022-11-20 12:52:44,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 133 [2022-11-20 12:52:44,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 134 [2022-11-20 12:52:49,118 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:52:49,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:52:53,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 495 treesize of output 375 [2022-11-20 12:52:53,803 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:52:53,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 375 treesize of output 1 [2022-11-20 12:52:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 12:52:54,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:52:54,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717606361] [2022-11-20 12:52:54,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717606361] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:52:54,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:52:54,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2022-11-20 12:52:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197373595] [2022-11-20 12:52:54,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:52:54,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:52:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:52:54,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:52:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:52:54,119 INFO L87 Difference]: Start difference. First operand 963 states and 1391 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:52:56,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:52:58,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:01,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:05,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:07,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:09,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:11,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:12,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:17,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:23,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:25,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:33,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:35,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:37,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:39,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:41,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:43,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:45,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:47,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:49,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:51,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:53,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:54,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:56,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:58,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:53:59,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:00,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:02,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:04,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:08,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:10,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:14,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:21,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:23,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:34,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:36,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:38,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:42,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:44,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:46,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:48,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:54:50,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:55:05,795 INFO L93 Difference]: Finished difference Result 1921 states and 2779 transitions. [2022-11-20 12:55:05,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:55:05,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-11-20 12:55:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:55:05,809 INFO L225 Difference]: With dead ends: 1921 [2022-11-20 12:55:05,809 INFO L226 Difference]: Without dead ends: 981 [2022-11-20 12:55:05,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2022-11-20 12:55:05,816 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 26 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 6 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 5868 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 259 IncrementalHoareTripleChecker+Unchecked, 131.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:55:05,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 5868 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 718 Invalid, 29 Unknown, 259 Unchecked, 131.6s Time] [2022-11-20 12:55:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-11-20 12:55:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 966. [2022-11-20 12:55:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 704 states have (on average 1.3650568181818181) internal successors, (961), 714 states have internal predecessors, (961), 212 states have call successors, (212), 47 states have call predecessors, (212), 49 states have return successors, (223), 211 states have call predecessors, (223), 212 states have call successors, (223) [2022-11-20 12:55:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1396 transitions. [2022-11-20 12:55:05,864 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1396 transitions. Word has length 94 [2022-11-20 12:55:05,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:55:05,865 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1396 transitions. [2022-11-20 12:55:05,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:55:05,866 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1396 transitions. [2022-11-20 12:55:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 12:55:05,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:55:05,870 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:55:05,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:55:06,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:55:06,095 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:55:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:55:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash -868801579, now seen corresponding path program 1 times [2022-11-20 12:55:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:55:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070798255] [2022-11-20 12:55:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:55:06,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:55:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:55:06,098 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:55:06,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:55:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:55:15,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 12:55:15,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:55:15,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:55:19,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 215 [2022-11-20 12:55:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:55:19,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:55:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:55:19,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:55:19,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:55:20,221 INFO L321 Elim1Store]: treesize reduction 109, result has 41.1 percent of original size [2022-11-20 12:55:20,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 133 [2022-11-20 12:55:20,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 134 [2022-11-20 12:55:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:55:24,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:55:30,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 495 treesize of output 375 [2022-11-20 12:55:30,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:55:30,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 375 treesize of output 1 [2022-11-20 12:55:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 12:55:30,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:55:30,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070798255] [2022-11-20 12:55:30,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070798255] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:55:30,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:55:30,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 27 [2022-11-20 12:55:30,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321191245] [2022-11-20 12:55:30,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:55:30,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:55:30,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:55:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:55:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:55:30,695 INFO L87 Difference]: Start difference. First operand 966 states and 1396 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:55:32,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:34,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:37,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:40,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:42,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:44,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:46,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:48,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:54,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:57,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:55:59,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:00,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:01,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:04,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:06,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:08,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:10,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:12,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:14,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:16,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:18,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:20,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:22,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:24,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:26,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:28,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:29,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:30,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:32,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:33,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:38,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:39,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:47,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:49,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:50,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:56:56,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:00,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:02,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:04,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:06,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:57:17,637 INFO L93 Difference]: Finished difference Result 1924 states and 2783 transitions. [2022-11-20 12:57:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:57:17,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-11-20 12:57:17,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:57:17,649 INFO L225 Difference]: With dead ends: 1924 [2022-11-20 12:57:17,650 INFO L226 Difference]: Without dead ends: 981 [2022-11-20 12:57:17,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 153 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:57:17,656 INFO L413 NwaCegarLoop]: 1387 mSDtfsCounter, 33 mSDsluCounter, 5704 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 8 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 7091 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 769 IncrementalHoareTripleChecker+Unchecked, 106.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:57:17,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 7091 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 482 Invalid, 24 Unknown, 769 Unchecked, 106.8s Time] [2022-11-20 12:57:17,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-11-20 12:57:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 963. [2022-11-20 12:57:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 702 states have (on average 1.3660968660968662) internal successors, (959), 711 states have internal predecessors, (959), 212 states have call successors, (212), 47 states have call predecessors, (212), 48 states have return successors, (220), 211 states have call predecessors, (220), 212 states have call successors, (220) [2022-11-20 12:57:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1391 transitions. [2022-11-20 12:57:17,701 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1391 transitions. Word has length 94 [2022-11-20 12:57:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:57:17,701 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1391 transitions. [2022-11-20 12:57:17,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:57:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1391 transitions. [2022-11-20 12:57:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 12:57:17,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:57:17,705 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:57:17,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:57:17,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:57:17,919 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:57:17,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:57:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash 634178022, now seen corresponding path program 1 times [2022-11-20 12:57:17,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:57:17,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972823159] [2022-11-20 12:57:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:57:17,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:57:17,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:57:17,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:57:17,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:57:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:57:26,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 12:57:26,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:57:26,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 12:57:30,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 215 [2022-11-20 12:57:30,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:57:30,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:57:30,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:57:30,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:57:30,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:57:31,004 INFO L321 Elim1Store]: treesize reduction 109, result has 41.1 percent of original size [2022-11-20 12:57:31,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 133 [2022-11-20 12:57:31,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 134 [2022-11-20 12:57:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-20 12:57:37,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:57:43,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 693 treesize of output 525 [2022-11-20 12:57:43,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:57:43,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 525 treesize of output 1 [2022-11-20 12:57:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-20 12:57:44,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:57:44,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972823159] [2022-11-20 12:57:44,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972823159] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:57:44,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:57:44,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 27 [2022-11-20 12:57:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211659143] [2022-11-20 12:57:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:57:44,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:57:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:57:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:57:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:57:44,116 INFO L87 Difference]: Start difference. First operand 963 states and 1391 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:57:46,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:48,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:51,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:52,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:56,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:57:58,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:00,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:02,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:08,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:12,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:15,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:17,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:18,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:21,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:22,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:28,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:29,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:31,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:34,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:36,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:38,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:40,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:42,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:44,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:46,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:47,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:49,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:51,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:53,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:54,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:56,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:58:59,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:02,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:04,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:06,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:17,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:19,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:28,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:30,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:33,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:35,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:37,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:40,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:42,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:44,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:56,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:59:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:59:59,417 INFO L93 Difference]: Finished difference Result 1921 states and 2779 transitions. [2022-11-20 12:59:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:59:59,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2022-11-20 12:59:59,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:59:59,431 INFO L225 Difference]: With dead ends: 1921 [2022-11-20 12:59:59,431 INFO L226 Difference]: Without dead ends: 981 [2022-11-20 12:59:59,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 155 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2022-11-20 12:59:59,438 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 33 mSDsluCounter, 5605 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 12 mSolverCounterUnsat, 29 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 6967 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 29 IncrementalHoareTripleChecker+Unknown, 259 IncrementalHoareTripleChecker+Unchecked, 135.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:59:59,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 6967 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 722 Invalid, 29 Unknown, 259 Unchecked, 135.2s Time] [2022-11-20 12:59:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2022-11-20 12:59:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 966. [2022-11-20 12:59:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 704 states have (on average 1.3650568181818181) internal successors, (961), 714 states have internal predecessors, (961), 212 states have call successors, (212), 47 states have call predecessors, (212), 49 states have return successors, (223), 211 states have call predecessors, (223), 212 states have call successors, (223) [2022-11-20 12:59:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1396 transitions. [2022-11-20 12:59:59,516 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1396 transitions. Word has length 95 [2022-11-20 12:59:59,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:59:59,517 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1396 transitions. [2022-11-20 12:59:59,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 12:59:59,517 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1396 transitions. [2022-11-20 12:59:59,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 12:59:59,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:59:59,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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] [2022-11-20 12:59:59,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:59:59,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:59:59,732 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:59:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:59:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash 696217636, now seen corresponding path program 1 times [2022-11-20 12:59:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:59:59,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357556790] [2022-11-20 12:59:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:59:59,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:59:59,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:59:59,735 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:59:59,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f23b575-9d07-4276-b506-c887ee6f4f28/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 13:00:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 13:00:07,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 13:00:07,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 13:00:07,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 13:00:11,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 215 [2022-11-20 13:00:11,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 13:00:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 13:00:11,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 13:00:11,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 13:00:11,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 13:00:12,292 INFO L321 Elim1Store]: treesize reduction 109, result has 41.1 percent of original size [2022-11-20 13:00:12,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 133 [2022-11-20 13:00:12,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 134