./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/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_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/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_5072321d-855f-46db-b14c-8dcd728bb676/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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:49:15,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:49:15,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:49:15,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:49:15,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:49:15,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:49:15,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:49:15,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:49:15,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:49:15,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:49:15,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:49:15,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:49:15,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:49:15,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:49:15,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:49:15,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:49:15,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:49:15,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:49:15,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:49:15,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:49:15,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:49:15,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:49:15,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:49:15,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:49:15,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:49:15,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:49:15,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:49:15,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:49:15,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:49:15,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:49:15,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:49:15,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:49:15,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:49:15,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:49:15,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:49:15,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:49:15,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:49:15,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:49:15,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:49:15,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:49:15,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:49:15,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:49:15,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:49:15,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:49:15,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:49:15,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:49:15,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:49:15,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:49:15,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:49:15,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:49:15,277 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:49:15,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:49:15,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:49:15,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:49:15,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:49:15,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:49:15,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:49:15,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:49:15,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:49:15,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:49:15,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:49:15,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:49:15,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:49:15,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:15,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:49:15,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:49:15,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:49:15,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:49:15,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:49:15,282 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:49:15,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:49:15,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:49:15,283 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_5072321d-855f-46db-b14c-8dcd728bb676/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2022-11-20 10:49:15,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:49:15,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:49:15,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:49:15,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:49:15,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:49:15,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-20 10:49:18,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:49:19,323 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:49:19,323 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-20 10:49:19,374 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/2d31e8a13/26a13f6811fa43e982e1766e4d05ec93/FLAG141d7e5d2 [2022-11-20 10:49:19,397 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/2d31e8a13/26a13f6811fa43e982e1766e4d05ec93 [2022-11-20 10:49:19,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:49:19,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:49:19,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:19,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:49:19,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:49:19,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:19" (1/1) ... [2022-11-20 10:49:19,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e88c692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:19, skipping insertion in model container [2022-11-20 10:49:19,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:19" (1/1) ... [2022-11-20 10:49:19,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:49:19,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:20,970 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 10:49:20,976 INFO L158 Benchmark]: Toolchain (without parser) took 1570.54ms. Allocated memory is still 155.2MB. Free memory was 104.3MB in the beginning and 75.3MB in the end (delta: 29.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 10:49:20,977 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:49:20,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1566.43ms. Allocated memory is still 155.2MB. Free memory was 103.6MB in the beginning and 75.3MB in the end (delta: 28.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 10:49:20,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1566.43ms. Allocated memory is still 155.2MB. Free memory was 103.6MB in the beginning and 75.3MB in the end (delta: 28.3MB). Peak memory consumption was 35.7MB. 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_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/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_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/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_5072321d-855f-46db-b14c-8dcd728bb676/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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:49:23,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:49:23,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:49:23,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:49:23,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:49:23,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:49:23,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:49:23,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:49:23,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:49:23,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:49:23,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:49:23,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:49:23,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:49:23,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:49:23,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:49:23,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:49:23,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:49:23,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:49:23,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:49:23,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:49:23,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:49:23,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:49:23,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:49:23,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:49:23,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:49:23,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:49:23,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:49:23,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:49:23,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:49:23,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:49:23,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:49:23,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:49:23,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:49:23,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:49:23,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:49:23,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:49:23,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:49:23,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:49:23,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:49:23,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:49:23,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:49:23,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:49:23,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:49:23,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:49:23,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:49:23,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:49:23,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:49:23,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:49:23,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:49:23,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:49:23,308 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:49:23,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:49:23,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:49:23,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:49:23,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:49:23,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:49:23,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:49:23,311 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:49:23,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:49:23,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:49:23,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:49:23,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:49:23,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:49:23,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:49:23,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:49:23,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:23,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:49:23,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:49:23,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:49:23,315 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:49:23,315 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:49:23,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:49:23,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:49:23,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:49:23,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:49:23,317 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_5072321d-855f-46db-b14c-8dcd728bb676/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2022-11-20 10:49:23,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:49:23,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:49:23,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:49:23,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:49:23,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:49:23,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-20 10:49:26,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:49:27,438 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:49:27,441 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-20 10:49:27,494 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/4fabac317/287af6da9cd24831b12c0d6615c76bde/FLAGaf4309d65 [2022-11-20 10:49:27,517 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/data/4fabac317/287af6da9cd24831b12c0d6615c76bde [2022-11-20 10:49:27,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:49:27,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:49:27,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:27,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:49:27,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:49:27,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:27" (1/1) ... [2022-11-20 10:49:27,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@703133c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:27, skipping insertion in model container [2022-11-20 10:49:27,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:27" (1/1) ... [2022-11-20 10:49:27,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:49:27,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:30,361 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_5072321d-855f-46db-b14c-8dcd728bb676/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-20 10:49:30,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:30,648 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:49:30,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:49:31,364 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_5072321d-855f-46db-b14c-8dcd728bb676/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-20 10:49:31,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:31,465 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:49:31,979 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_5072321d-855f-46db-b14c-8dcd728bb676/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-20 10:49:31,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:49:32,252 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:49:32,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32 WrapperNode [2022-11-20 10:49:32,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:49:32,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:32,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:49:32,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:49:32,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:32,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:32,813 INFO L138 Inliner]: procedures = 374, calls = 7223, calls flagged for inlining = 183, calls inlined = 137, statements flattened = 11356 [2022-11-20 10:49:32,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:49:32,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:49:32,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:49:32,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:49:32,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:32,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:32,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:32,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:49:33,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:49:33,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:49:33,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:49:33,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (1/1) ... [2022-11-20 10:49:33,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:49:33,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:49:33,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:49:33,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:49:33,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:49:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-20 10:49:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-20 10:49:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-20 10:49:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-20 10:49:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-20 10:49:33,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-20 10:49:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:49:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:49:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:49:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:49:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:49:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 10:49:33,497 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 10:49:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2022-11-20 10:49:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2022-11-20 10:49:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:49:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:49:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2022-11-20 10:49:33,498 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2022-11-20 10:49:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2022-11-20 10:49:33,499 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2022-11-20 10:49:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2022-11-20 10:49:33,499 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2022-11-20 10:49:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2022-11-20 10:49:33,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2022-11-20 10:49:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2022-11-20 10:49:33,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2022-11-20 10:49:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:49:33,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:49:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-20 10:49:33,502 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-20 10:49:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:49:33,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:49:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2022-11-20 10:49:33,502 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2022-11-20 10:49:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-11-20 10:49:33,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-11-20 10:49:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-20 10:49:33,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-20 10:49:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2022-11-20 10:49:33,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2022-11-20 10:49:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:49:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:49:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2022-11-20 10:49:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2022-11-20 10:49:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-20 10:49:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-20 10:49:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2022-11-20 10:49:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2022-11-20 10:49:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:49:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2022-11-20 10:49:33,506 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2022-11-20 10:49:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2022-11-20 10:49:33,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2022-11-20 10:49:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:49:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2022-11-20 10:49:33,507 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2022-11-20 10:49:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-20 10:49:33,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-20 10:49:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 10:49:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2022-11-20 10:49:33,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2022-11-20 10:49:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:49:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 10:49:33,509 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 10:49:33,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:49:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:49:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:49:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:49:33,510 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2022-11-20 10:49:33,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2022-11-20 10:49:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2022-11-20 10:49:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2022-11-20 10:49:33,511 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:49:33,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:49:33,512 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-20 10:49:33,512 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-20 10:49:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2022-11-20 10:49:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2022-11-20 10:49:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-20 10:49:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-20 10:49:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-20 10:49:33,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-20 10:49:33,513 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2022-11-20 10:49:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2022-11-20 10:49:33,514 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 10:49:33,514 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 10:49:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2022-11-20 10:49:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2022-11-20 10:49:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2022-11-20 10:49:33,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2022-11-20 10:49:33,515 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2022-11-20 10:49:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2022-11-20 10:49:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2022-11-20 10:49:33,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2022-11-20 10:49:33,516 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2022-11-20 10:49:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2022-11-20 10:49:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 10:49:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 10:49:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2022-11-20 10:49:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2022-11-20 10:49:33,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-11-20 10:49:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-11-20 10:49:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2022-11-20 10:49:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2022-11-20 10:49:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2022-11-20 10:49:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2022-11-20 10:49:33,522 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2022-11-20 10:49:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2022-11-20 10:49:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2022-11-20 10:49:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2022-11-20 10:49:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2022-11-20 10:49:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2022-11-20 10:49:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:49:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:49:33,534 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2022-11-20 10:49:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2022-11-20 10:49:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 10:49:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 10:49:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-20 10:49:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-20 10:49:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2022-11-20 10:49:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2022-11-20 10:49:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2022-11-20 10:49:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2022-11-20 10:49:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2022-11-20 10:49:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2022-11-20 10:49:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:49:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:49:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2022-11-20 10:49:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2022-11-20 10:49:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2022-11-20 10:49:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2022-11-20 10:49:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 10:49:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 10:49:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2022-11-20 10:49:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2022-11-20 10:49:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2022-11-20 10:49:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2022-11-20 10:49:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 10:49:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2022-11-20 10:49:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:49:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-20 10:49:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-20 10:49:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:49:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:49:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2022-11-20 10:49:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2022-11-20 10:49:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2022-11-20 10:49:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2022-11-20 10:49:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:49:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-20 10:49:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-20 10:49:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 10:49:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 10:49:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:49:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2022-11-20 10:49:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2022-11-20 10:49:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2022-11-20 10:49:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2022-11-20 10:49:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2022-11-20 10:49:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2022-11-20 10:49:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2022-11-20 10:49:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2022-11-20 10:49:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:49:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2022-11-20 10:49:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2022-11-20 10:49:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:49:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2022-11-20 10:49:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2022-11-20 10:49:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:49:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2022-11-20 10:49:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2022-11-20 10:49:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:49:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:49:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:49:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:49:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2022-11-20 10:49:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2022-11-20 10:49:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 10:49:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 10:49:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2022-11-20 10:49:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2022-11-20 10:49:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2022-11-20 10:49:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2022-11-20 10:49:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-20 10:49:33,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-20 10:49:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2022-11-20 10:49:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2022-11-20 10:49:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2022-11-20 10:49:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2022-11-20 10:49:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2022-11-20 10:49:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2022-11-20 10:49:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-20 10:49:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-20 10:49:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2022-11-20 10:49:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2022-11-20 10:49:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-20 10:49:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-20 10:49:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:49:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:49:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2022-11-20 10:49:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2022-11-20 10:49:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2022-11-20 10:49:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2022-11-20 10:49:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2022-11-20 10:49:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2022-11-20 10:49:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2022-11-20 10:49:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2022-11-20 10:49:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2022-11-20 10:49:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2022-11-20 10:49:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2022-11-20 10:49:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2022-11-20 10:49:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-20 10:49:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-20 10:49:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:49:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2022-11-20 10:49:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2022-11-20 10:49:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2022-11-20 10:49:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2022-11-20 10:49:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:49:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:49:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2022-11-20 10:49:33,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2022-11-20 10:49:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 10:49:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 10:49:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:49:33,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:49:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2022-11-20 10:49:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2022-11-20 10:49:34,599 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:49:34,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:51:56,296 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:51:56,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:51:56,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:51:56,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:56 BoogieIcfgContainer [2022-11-20 10:51:56,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:51:56,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:51:56,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:51:56,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:51:56,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:27" (1/3) ... [2022-11-20 10:51:56,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6247f408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:56, skipping insertion in model container [2022-11-20 10:51:56,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:32" (2/3) ... [2022-11-20 10:51:56,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6247f408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:51:56, skipping insertion in model container [2022-11-20 10:51:56,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:56" (3/3) ... [2022-11-20 10:51:56,345 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-20 10:51:56,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:51:56,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:51:56,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:51:56,500 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;@3a63d8b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:51:56,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:51:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 2726 states, 1855 states have (on average 1.3547169811320754) internal successors, (2513), 1882 states have internal predecessors, (2513), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-20 10:51:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 10:51:56,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:51:56,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:56,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:51:56,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:56,543 INFO L85 PathProgramCache]: Analyzing trace with hash 221903323, now seen corresponding path program 1 times [2022-11-20 10:51:56,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:51:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609947459] [2022-11-20 10:51:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:56,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:51:56,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:51:56,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:51:56,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:52:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:05,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:05,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:05,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:05,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:05,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609947459] [2022-11-20 10:52:05,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609947459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:05,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:05,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078558446] [2022-11-20 10:52:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:05,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:05,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:05,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:05,728 INFO L87 Difference]: Start difference. First operand has 2726 states, 1855 states have (on average 1.3547169811320754) internal successors, (2513), 1882 states have internal predecessors, (2513), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:06,245 INFO L93 Difference]: Finished difference Result 5442 states and 8160 transitions. [2022-11-20 10:52:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:06,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-11-20 10:52:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:06,280 INFO L225 Difference]: With dead ends: 5442 [2022-11-20 10:52:06,280 INFO L226 Difference]: Without dead ends: 2720 [2022-11-20 10:52:06,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:06,304 INFO L413 NwaCegarLoop]: 4033 mSDtfsCounter, 1 mSDsluCounter, 4031 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8064 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:06,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8064 Invalid, 5 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:52:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-11-20 10:52:06,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 2719. [2022-11-20 10:52:06,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 1851 states have (on average 1.3538627768773637) internal successors, (2506), 1876 states have internal predecessors, (2506), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-20 10:52:06,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 4030 transitions. [2022-11-20 10:52:06,533 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 4030 transitions. Word has length 19 [2022-11-20 10:52:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:06,535 INFO L495 AbstractCegarLoop]: Abstraction has 2719 states and 4030 transitions. [2022-11-20 10:52:06,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 4030 transitions. [2022-11-20 10:52:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 10:52:06,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:06,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:06,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/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 10:52:06,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:06,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:06,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:06,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1855669153, now seen corresponding path program 1 times [2022-11-20 10:52:06,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:06,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207933307] [2022-11-20 10:52:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:06,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:06,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:06,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:06,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:52:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:15,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 4846 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:52:15,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:16,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:16,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:52:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:16,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:16,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207933307] [2022-11-20 10:52:16,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207933307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:52:16,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:52:16,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 10:52:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886454377] [2022-11-20 10:52:16,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:52:16,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:52:16,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:52:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:52:16,923 INFO L87 Difference]: Start difference. First operand 2719 states and 4030 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:18,118 INFO L93 Difference]: Finished difference Result 5433 states and 8056 transitions. [2022-11-20 10:52:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:52:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-20 10:52:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:18,144 INFO L225 Difference]: With dead ends: 5433 [2022-11-20 10:52:18,144 INFO L226 Difference]: Without dead ends: 2725 [2022-11-20 10:52:18,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:52:18,167 INFO L413 NwaCegarLoop]: 4027 mSDtfsCounter, 5 mSDsluCounter, 12075 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16102 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:18,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16102 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:52:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-11-20 10:52:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2725. [2022-11-20 10:52:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 1857 states have (on average 1.3527194399569198) internal successors, (2512), 1882 states have internal predecessors, (2512), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-20 10:52:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 4036 transitions. [2022-11-20 10:52:18,305 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 4036 transitions. Word has length 21 [2022-11-20 10:52:18,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:18,305 INFO L495 AbstractCegarLoop]: Abstraction has 2725 states and 4036 transitions. [2022-11-20 10:52:18,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 4036 transitions. [2022-11-20 10:52:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 10:52:18,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:18,307 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:18,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:18,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:18,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash -965829141, now seen corresponding path program 2 times [2022-11-20 10:52:18,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:18,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274224387] [2022-11-20 10:52:18,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:52:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:18,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:18,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:18,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:52:26,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:52:26,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:52:27,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:27,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:28,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 10:52:28,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:28,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:28,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274224387] [2022-11-20 10:52:28,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274224387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:28,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:28,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:28,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209550798] [2022-11-20 10:52:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:28,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:28,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:28,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:28,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:28,830 INFO L87 Difference]: Start difference. First operand 2725 states and 4036 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:52:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:29,425 INFO L93 Difference]: Finished difference Result 2727 states and 4037 transitions. [2022-11-20 10:52:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:29,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-20 10:52:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:29,448 INFO L225 Difference]: With dead ends: 2727 [2022-11-20 10:52:29,448 INFO L226 Difference]: Without dead ends: 2724 [2022-11-20 10:52:29,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:29,462 INFO L413 NwaCegarLoop]: 4026 mSDtfsCounter, 4009 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4009 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:29,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4009 Valid, 4028 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:52:29,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2022-11-20 10:52:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 2724. [2022-11-20 10:52:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 1857 states have (on average 1.3521809369951534) internal successors, (2511), 1881 states have internal predecessors, (2511), 764 states have call successors, (764), 104 states have call predecessors, (764), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-20 10:52:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 4034 transitions. [2022-11-20 10:52:29,636 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 4034 transitions. Word has length 27 [2022-11-20 10:52:29,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:29,636 INFO L495 AbstractCegarLoop]: Abstraction has 2724 states and 4034 transitions. [2022-11-20 10:52:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:52:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 4034 transitions. [2022-11-20 10:52:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 10:52:29,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:29,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:29,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:29,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:29,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:29,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:29,860 INFO L85 PathProgramCache]: Analyzing trace with hash 121698022, now seen corresponding path program 1 times [2022-11-20 10:52:29,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:29,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343689586] [2022-11-20 10:52:29,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:29,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:29,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:29,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:29,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:52:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:38,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 4880 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:52:38,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:40,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:52:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:52:42,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:42,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343689586] [2022-11-20 10:52:42,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343689586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:52:42,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:52:42,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-20 10:52:42,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543738938] [2022-11-20 10:52:42,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:52:42,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:52:42,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:42,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:52:42,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:52:42,321 INFO L87 Difference]: Start difference. First operand 2724 states and 4034 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:46,749 INFO L93 Difference]: Finished difference Result 5443 states and 8067 transitions. [2022-11-20 10:52:46,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:52:46,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-20 10:52:46,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:46,779 INFO L225 Difference]: With dead ends: 5443 [2022-11-20 10:52:46,779 INFO L226 Difference]: Without dead ends: 2736 [2022-11-20 10:52:46,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-20 10:52:46,800 INFO L413 NwaCegarLoop]: 4025 mSDtfsCounter, 11 mSDsluCounter, 20115 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 24140 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:46,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 24140 Invalid, 79 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 10:52:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-20 10:52:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-11-20 10:52:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1869 states have (on average 1.3499197431781702) internal successors, (2523), 1893 states have internal predecessors, (2523), 764 states have call successors, (764), 104 states have call predecessors, (764), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-20 10:52:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4046 transitions. [2022-11-20 10:52:46,958 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4046 transitions. Word has length 28 [2022-11-20 10:52:46,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:46,958 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 4046 transitions. [2022-11-20 10:52:46,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:52:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4046 transitions. [2022-11-20 10:52:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-20 10:52:46,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:46,961 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:47,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:47,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:47,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -222133810, now seen corresponding path program 2 times [2022-11-20 10:52:47,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:47,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681367213] [2022-11-20 10:52:47,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:52:47,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:47,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:47,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:47,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:52:55,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:52:55,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:52:56,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 4836 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:56,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-20 10:52:58,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:58,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:58,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681367213] [2022-11-20 10:52:58,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681367213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:58,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:58,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:58,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600189603] [2022-11-20 10:52:58,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:58,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:58,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:58,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:58,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:58,098 INFO L87 Difference]: Start difference. First operand 2736 states and 4046 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:52:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:59,093 INFO L93 Difference]: Finished difference Result 7151 states and 10584 transitions. [2022-11-20 10:52:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:59,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-11-20 10:52:59,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:59,127 INFO L225 Difference]: With dead ends: 7151 [2022-11-20 10:52:59,127 INFO L226 Difference]: Without dead ends: 4448 [2022-11-20 10:52:59,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:59,148 INFO L413 NwaCegarLoop]: 6090 mSDtfsCounter, 2719 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 9863 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:59,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2719 Valid, 9863 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:52:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2022-11-20 10:52:59,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4445. [2022-11-20 10:52:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 3009 states have (on average 1.3356596876038551) internal successors, (4019), 3060 states have internal predecessors, (4019), 1254 states have call successors, (1254), 180 states have call predecessors, (1254), 181 states have return successors, (1261), 1230 states have call predecessors, (1261), 1236 states have call successors, (1261) [2022-11-20 10:52:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6534 transitions. [2022-11-20 10:52:59,667 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6534 transitions. Word has length 40 [2022-11-20 10:52:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:59,668 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 6534 transitions. [2022-11-20 10:52:59,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:52:59,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6534 transitions. [2022-11-20 10:52:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 10:52:59,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:59,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:59,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:59,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:59,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:52:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:59,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1701421670, now seen corresponding path program 1 times [2022-11-20 10:52:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:59,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672276133] [2022-11-20 10:52:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:59,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:52:59,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:59,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:52:59,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:53:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:09,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 4947 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:53:09,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:53:14,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:53:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:53:23,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:23,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672276133] [2022-11-20 10:53:23,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672276133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:53:23,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:53:23,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-20 10:53:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388314106] [2022-11-20 10:53:23,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:53:23,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 10:53:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 10:53:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-11-20 10:53:23,810 INFO L87 Difference]: Start difference. First operand 4445 states and 6534 transitions. Second operand has 24 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:53:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:41,433 INFO L93 Difference]: Finished difference Result 8885 states and 13073 transitions. [2022-11-20 10:53:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 10:53:41,433 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-20 10:53:41,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:41,468 INFO L225 Difference]: With dead ends: 8885 [2022-11-20 10:53:41,469 INFO L226 Difference]: Without dead ends: 4469 [2022-11-20 10:53:41,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 10:53:41,498 INFO L413 NwaCegarLoop]: 4025 mSDtfsCounter, 22 mSDsluCounter, 44253 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 48278 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:41,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 48278 Invalid, 307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-11-20 10:53:41,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2022-11-20 10:53:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 4469. [2022-11-20 10:53:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4469 states, 3033 states have (on average 1.3330036267721728) internal successors, (4043), 3084 states have internal predecessors, (4043), 1254 states have call successors, (1254), 180 states have call predecessors, (1254), 181 states have return successors, (1261), 1230 states have call predecessors, (1261), 1236 states have call successors, (1261) [2022-11-20 10:53:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4469 states to 4469 states and 6558 transitions. [2022-11-20 10:53:41,825 INFO L78 Accepts]: Start accepts. Automaton has 4469 states and 6558 transitions. Word has length 41 [2022-11-20 10:53:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:41,826 INFO L495 AbstractCegarLoop]: Abstraction has 4469 states and 6558 transitions. [2022-11-20 10:53:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 10:53:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4469 states and 6558 transitions. [2022-11-20 10:53:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 10:53:41,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:41,828 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:41,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:42,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:42,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:42,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:42,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1587026582, now seen corresponding path program 2 times [2022-11-20 10:53:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:42,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2869097] [2022-11-20 10:53:42,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:53:42,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:42,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:42,055 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:42,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:53:51,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:53:51,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:53:51,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 4837 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:51,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 10:53:54,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:54,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2869097] [2022-11-20 10:53:54,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2869097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:54,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:54,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:54,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266776578] [2022-11-20 10:53:54,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:54,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:54,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:54,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:54,932 INFO L87 Difference]: Start difference. First operand 4469 states and 6558 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:53:55,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:55,508 INFO L93 Difference]: Finished difference Result 4471 states and 6559 transitions. [2022-11-20 10:53:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:55,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-20 10:53:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:55,593 INFO L225 Difference]: With dead ends: 4471 [2022-11-20 10:53:55,594 INFO L226 Difference]: Without dead ends: 4460 [2022-11-20 10:53:55,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:55,600 INFO L413 NwaCegarLoop]: 4025 mSDtfsCounter, 4005 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:55,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4005 Valid, 4027 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:53:55,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2022-11-20 10:53:55,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4460. [2022-11-20 10:53:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4460 states, 3027 states have (on average 1.3313511727783285) internal successors, (4030), 3077 states have internal predecessors, (4030), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-20 10:53:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6541 transitions. [2022-11-20 10:53:55,968 INFO L78 Accepts]: Start accepts. Automaton has 4460 states and 6541 transitions. Word has length 65 [2022-11-20 10:53:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:55,970 INFO L495 AbstractCegarLoop]: Abstraction has 4460 states and 6541 transitions. [2022-11-20 10:53:55,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 10:53:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4460 states and 6541 transitions. [2022-11-20 10:53:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-20 10:53:55,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:55,979 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 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] [2022-11-20 10:53:56,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:53:56,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:56,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:53:56,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:56,192 INFO L85 PathProgramCache]: Analyzing trace with hash -184335828, now seen corresponding path program 1 times [2022-11-20 10:53:56,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:56,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67932712] [2022-11-20 10:53:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:56,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:53:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:56,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:53:56,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:54:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:54:05,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 10:54:05,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:54:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:54:23,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:54:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:54:56,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:54:56,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67932712] [2022-11-20 10:54:56,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67932712] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:54:56,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:54:56,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2022-11-20 10:54:56,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137200243] [2022-11-20 10:54:56,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:54:56,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 10:54:56,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:54:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 10:54:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 10:54:56,215 INFO L87 Difference]: Start difference. First operand 4460 states and 6541 transitions. Second operand has 48 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 48 states have internal predecessors, (130), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:56:01,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:01,641 INFO L93 Difference]: Finished difference Result 8915 states and 13099 transitions. [2022-11-20 10:56:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-20 10:56:01,641 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 48 states have internal predecessors, (130), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-11-20 10:56:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:01,669 INFO L225 Difference]: With dead ends: 8915 [2022-11-20 10:56:01,670 INFO L226 Difference]: Without dead ends: 4508 [2022-11-20 10:56:01,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 79.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2022-11-20 10:56:01,693 INFO L413 NwaCegarLoop]: 4021 mSDtfsCounter, 47 mSDsluCounter, 100475 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 104496 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:01,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 104496 Invalid, 1197 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [46 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 31.2s Time] [2022-11-20 10:56:01,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2022-11-20 10:56:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4508. [2022-11-20 10:56:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 3075 states have (on average 1.3261788617886179) internal successors, (4078), 3125 states have internal predecessors, (4078), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-20 10:56:02,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6589 transitions. [2022-11-20 10:56:02,038 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6589 transitions. Word has length 90 [2022-11-20 10:56:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:02,039 INFO L495 AbstractCegarLoop]: Abstraction has 4508 states and 6589 transitions. [2022-11-20 10:56:02,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 48 states have internal predecessors, (130), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 10:56:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6589 transitions. [2022-11-20 10:56:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 10:56:02,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:02,048 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 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] [2022-11-20 10:56:02,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:02,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:02,272 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:02,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1614139956, now seen corresponding path program 2 times [2022-11-20 10:56:02,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:02,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241625207] [2022-11-20 10:56:02,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:56:02,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:02,279 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:56:02,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:56:10,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:56:10,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:56:10,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 4935 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:56:10,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2118 trivial. 0 not checked. [2022-11-20 10:56:11,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:11,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:11,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241625207] [2022-11-20 10:56:11,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241625207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:11,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:11,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:56:11,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235328578] [2022-11-20 10:56:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:11,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:56:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:11,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:56:11,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:56:11,198 INFO L87 Difference]: Start difference. First operand 4508 states and 6589 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:56:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:12,463 INFO L93 Difference]: Finished difference Result 8915 states and 13078 transitions. [2022-11-20 10:56:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:56:12,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 138 [2022-11-20 10:56:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:12,490 INFO L225 Difference]: With dead ends: 8915 [2022-11-20 10:56:12,490 INFO L226 Difference]: Without dead ends: 4512 [2022-11-20 10:56:12,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:12,510 INFO L413 NwaCegarLoop]: 4020 mSDtfsCounter, 3 mSDsluCounter, 8033 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12053 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:12,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12053 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:56:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2022-11-20 10:56:12,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4511. [2022-11-20 10:56:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4511 states, 3078 states have (on average 1.3258609486679662) internal successors, (4081), 3128 states have internal predecessors, (4081), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-20 10:56:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4511 states to 4511 states and 6592 transitions. [2022-11-20 10:56:12,847 INFO L78 Accepts]: Start accepts. Automaton has 4511 states and 6592 transitions. Word has length 138 [2022-11-20 10:56:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:12,848 INFO L495 AbstractCegarLoop]: Abstraction has 4511 states and 6592 transitions. [2022-11-20 10:56:12,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 10:56:12,849 INFO L276 IsEmpty]: Start isEmpty. Operand 4511 states and 6592 transitions. [2022-11-20 10:56:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-20 10:56:12,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:12,851 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 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] [2022-11-20 10:56:12,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:13,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:13,071 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:56:13,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash 905819978, now seen corresponding path program 1 times [2022-11-20 10:56:13,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [807470204] [2022-11-20 10:56:13,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:13,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:13,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:13,078 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:56:13,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:56:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:22,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 5469 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 10:56:22,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:57:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 2 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:28,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:59:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 10:59:21,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:59:21,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [807470204] [2022-11-20 10:59:21,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [807470204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:59:21,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:59:21,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 96 [2022-11-20 10:59:21,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317973702] [2022-11-20 10:59:21,493 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:59:21,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-11-20 10:59:21,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:59:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-11-20 10:59:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1933, Invalid=7187, Unknown=0, NotChecked=0, Total=9120 [2022-11-20 10:59:21,497 INFO L87 Difference]: Start difference. First operand 4511 states and 6592 transitions. Second operand has 96 states, 96 states have (on average 2.3541666666666665) internal successors, (226), 96 states have internal predecessors, (226), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:01:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:01:48,902 INFO L93 Difference]: Finished difference Result 8955 states and 13132 transitions. [2022-11-20 11:01:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-11-20 11:01:48,902 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.3541666666666665) internal successors, (226), 96 states have internal predecessors, (226), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 138 [2022-11-20 11:01:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:01:48,922 INFO L225 Difference]: With dead ends: 8955 [2022-11-20 11:01:48,922 INFO L226 Difference]: Without dead ends: 4545 [2022-11-20 11:01:48,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 214.8s TimeCoverageRelationStatistics Valid=2908, Invalid=9302, Unknown=0, NotChecked=0, Total=12210 [2022-11-20 11:01:48,945 INFO L413 NwaCegarLoop]: 4021 mSDtfsCounter, 64 mSDsluCounter, 192912 mSDsCounter, 0 mSdLazyCounter, 3713 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 196933 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:01:48,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 196933 Invalid, 3776 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [63 Valid, 3713 Invalid, 0 Unknown, 0 Unchecked, 100.9s Time] [2022-11-20 11:01:48,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2022-11-20 11:01:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4545. [2022-11-20 11:01:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 3112 states have (on average 1.3223007712082262) internal successors, (4115), 3162 states have internal predecessors, (4115), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-20 11:01:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6626 transitions. [2022-11-20 11:01:49,291 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6626 transitions. Word has length 138 [2022-11-20 11:01:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:01:49,292 INFO L495 AbstractCegarLoop]: Abstraction has 4545 states and 6626 transitions. [2022-11-20 11:01:49,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.3541666666666665) internal successors, (226), 96 states have internal predecessors, (226), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:01:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6626 transitions. [2022-11-20 11:01:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-20 11:01:49,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:01:49,296 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 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] [2022-11-20 11:01:49,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:01:49,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:01:49,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:01:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:01:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1707661306, now seen corresponding path program 2 times [2022-11-20 11:01:49,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:01:49,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744025904] [2022-11-20 11:01:49,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:01:49,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:01:49,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:01:49,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:01:49,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:01:58,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:01:58,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:01:58,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 4932 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:01:58,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:01:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3971 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3971 trivial. 0 not checked. [2022-11-20 11:01:59,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:01:59,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:01:59,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744025904] [2022-11-20 11:01:59,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744025904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:01:59,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:01:59,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:01:59,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725731285] [2022-11-20 11:01:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:01:59,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:01:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:01:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:01:59,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:01:59,723 INFO L87 Difference]: Start difference. First operand 4545 states and 6626 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:02:00,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:00,718 INFO L93 Difference]: Finished difference Result 8953 states and 13132 transitions. [2022-11-20 11:02:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:00,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2022-11-20 11:02:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:00,750 INFO L225 Difference]: With dead ends: 8953 [2022-11-20 11:02:00,750 INFO L226 Difference]: Without dead ends: 4547 [2022-11-20 11:02:00,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:00,773 INFO L413 NwaCegarLoop]: 4903 mSDtfsCounter, 3750 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 7616 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:00,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 7616 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:02:00,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2022-11-20 11:02:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4545. [2022-11-20 11:02:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4545 states, 3112 states have (on average 1.3216580976863752) internal successors, (4113), 3162 states have internal predecessors, (4113), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1245), 1229 states have call predecessors, (1245), 1225 states have call successors, (1245) [2022-11-20 11:02:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 6609 transitions. [2022-11-20 11:02:01,131 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 6609 transitions. Word has length 172 [2022-11-20 11:02:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:01,132 INFO L495 AbstractCegarLoop]: Abstraction has 4545 states and 6609 transitions. [2022-11-20 11:02:01,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:02:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 6609 transitions. [2022-11-20 11:02:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-20 11:02:01,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:01,143 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:01,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:01,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:01,360 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash -641052880, now seen corresponding path program 1 times [2022-11-20 11:02:01,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:01,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469797601] [2022-11-20 11:02:01,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:01,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:01,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:01,368 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:02:01,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:02:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:11,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 5791 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:02:11,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3976 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3974 trivial. 0 not checked. [2022-11-20 11:02:18,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:18,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:18,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469797601] [2022-11-20 11:02:18,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469797601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119632096] [2022-11-20 11:02:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:18,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,829 INFO L87 Difference]: Start difference. First operand 4545 states and 6609 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:19,692 INFO L93 Difference]: Finished difference Result 9215 states and 13500 transitions. [2022-11-20 11:02:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:19,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 226 [2022-11-20 11:02:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:19,723 INFO L225 Difference]: With dead ends: 9215 [2022-11-20 11:02:19,724 INFO L226 Difference]: Without dead ends: 4809 [2022-11-20 11:02:19,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,747 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 175 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 8001 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:19,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 8001 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:02:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4809 states. [2022-11-20 11:02:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4809 to 4764. [2022-11-20 11:02:20,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4764 states, 3274 states have (on average 1.3268173488087966) internal successors, (4344), 3330 states have internal predecessors, (4344), 1308 states have call successors, (1308), 179 states have call predecessors, (1308), 181 states have return successors, (1304), 1286 states have call predecessors, (1304), 1282 states have call successors, (1304) [2022-11-20 11:02:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4764 states to 4764 states and 6956 transitions. [2022-11-20 11:02:20,145 INFO L78 Accepts]: Start accepts. Automaton has 4764 states and 6956 transitions. Word has length 226 [2022-11-20 11:02:20,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:20,146 INFO L495 AbstractCegarLoop]: Abstraction has 4764 states and 6956 transitions. [2022-11-20 11:02:20,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4764 states and 6956 transitions. [2022-11-20 11:02:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-20 11:02:20,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:20,157 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:20,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:20,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:20,380 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:20,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:20,380 INFO L85 PathProgramCache]: Analyzing trace with hash 290740956, now seen corresponding path program 1 times [2022-11-20 11:02:20,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:20,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867423152] [2022-11-20 11:02:20,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:20,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:20,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:20,389 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:02:20,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:02:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 5850 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:30,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3984 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3976 trivial. 0 not checked. [2022-11-20 11:02:30,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:30,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:30,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867423152] [2022-11-20 11:02:30,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867423152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:30,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:30,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:02:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211548249] [2022-11-20 11:02:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:30,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:02:30,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:02:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:02:30,838 INFO L87 Difference]: Start difference. First operand 4764 states and 6956 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 11:02:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:31,639 INFO L93 Difference]: Finished difference Result 9397 states and 13781 transitions. [2022-11-20 11:02:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:02:31,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 250 [2022-11-20 11:02:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:31,662 INFO L225 Difference]: With dead ends: 9397 [2022-11-20 11:02:31,662 INFO L226 Difference]: Without dead ends: 4766 [2022-11-20 11:02:31,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:31,683 INFO L413 NwaCegarLoop]: 4028 mSDtfsCounter, 9 mSDsluCounter, 8034 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12062 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:31,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 12062 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:02:31,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4766 states. [2022-11-20 11:02:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4766 to 4761. [2022-11-20 11:02:32,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 3273 states have (on average 1.325695080965475) internal successors, (4339), 3329 states have internal predecessors, (4339), 1306 states have call successors, (1306), 179 states have call predecessors, (1306), 181 states have return successors, (1302), 1284 states have call predecessors, (1302), 1280 states have call successors, (1302) [2022-11-20 11:02:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 6947 transitions. [2022-11-20 11:02:32,151 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 6947 transitions. Word has length 250 [2022-11-20 11:02:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:32,152 INFO L495 AbstractCegarLoop]: Abstraction has 4761 states and 6947 transitions. [2022-11-20 11:02:32,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 11:02:32,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 6947 transitions. [2022-11-20 11:02:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-20 11:02:32,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:32,166 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:32,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:32,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:32,380 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:32,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash -356935264, now seen corresponding path program 1 times [2022-11-20 11:02:32,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:32,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798976987] [2022-11-20 11:02:32,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:32,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:32,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:32,389 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:02:32,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:02:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:42,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 5988 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:02:42,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:50,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3979 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3977 trivial. 0 not checked. [2022-11-20 11:02:50,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:50,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:02:50,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798976987] [2022-11-20 11:02:50,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798976987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:50,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:50,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:50,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914122517] [2022-11-20 11:02:50,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:50,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:50,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:02:50,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:50,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:50,238 INFO L87 Difference]: Start difference. First operand 4761 states and 6947 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:02:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:50,820 INFO L93 Difference]: Finished difference Result 9815 states and 14460 transitions. [2022-11-20 11:02:50,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:50,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 280 [2022-11-20 11:02:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:50,844 INFO L225 Difference]: With dead ends: 9815 [2022-11-20 11:02:50,845 INFO L226 Difference]: Without dead ends: 5193 [2022-11-20 11:02:50,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:50,866 INFO L413 NwaCegarLoop]: 4252 mSDtfsCounter, 405 mSDsluCounter, 3896 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 8148 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:50,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 8148 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:02:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5193 states. [2022-11-20 11:02:51,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5193 to 5169. [2022-11-20 11:02:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 3588 states have (on average 1.3433667781493868) internal successors, (4820), 3644 states have internal predecessors, (4820), 1399 states have call successors, (1399), 179 states have call predecessors, (1399), 181 states have return successors, (1396), 1378 states have call predecessors, (1396), 1373 states have call successors, (1396) [2022-11-20 11:02:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 7615 transitions. [2022-11-20 11:02:51,426 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 7615 transitions. Word has length 280 [2022-11-20 11:02:51,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:51,427 INFO L495 AbstractCegarLoop]: Abstraction has 5169 states and 7615 transitions. [2022-11-20 11:02:51,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:02:51,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 7615 transitions. [2022-11-20 11:02:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 11:02:51,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:51,445 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:51,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:51,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:51,668 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash -900392649, now seen corresponding path program 1 times [2022-11-20 11:02:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:02:51,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329189524] [2022-11-20 11:02:51,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:51,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:02:51,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:02:51,677 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:02:51,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:03:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:03,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 7155 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:03:03,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2022-11-20 11:03:04,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:03:04,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:04,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329189524] [2022-11-20 11:03:04,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329189524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:04,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:04,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:03:04,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000122377] [2022-11-20 11:03:04,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:04,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:03:04,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:04,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:03:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:03:04,017 INFO L87 Difference]: Start difference. First operand 5169 states and 7615 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:03:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:04,955 INFO L93 Difference]: Finished difference Result 10203 states and 15104 transitions. [2022-11-20 11:03:04,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:03:04,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 287 [2022-11-20 11:03:04,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:04,976 INFO L225 Difference]: With dead ends: 10203 [2022-11-20 11:03:04,976 INFO L226 Difference]: Without dead ends: 5173 [2022-11-20 11:03:04,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:03:04,994 INFO L413 NwaCegarLoop]: 4014 mSDtfsCounter, 3 mSDsluCounter, 8023 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12037 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:04,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12037 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:03:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5173 states. [2022-11-20 11:03:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5173 to 5172. [2022-11-20 11:03:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 3591 states have (on average 1.3430799220272904) internal successors, (4823), 3647 states have internal predecessors, (4823), 1399 states have call successors, (1399), 179 states have call predecessors, (1399), 181 states have return successors, (1396), 1378 states have call predecessors, (1396), 1373 states have call successors, (1396) [2022-11-20 11:03:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7618 transitions. [2022-11-20 11:03:05,435 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7618 transitions. Word has length 287 [2022-11-20 11:03:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:05,436 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7618 transitions. [2022-11-20 11:03:05,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:03:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7618 transitions. [2022-11-20 11:03:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-20 11:03:05,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:05,456 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 7, 7, 7, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:05,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:05,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:03:05,680 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:05,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1882355417, now seen corresponding path program 1 times [2022-11-20 11:03:05,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:03:05,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173290264] [2022-11-20 11:03:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:05,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:03:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:03:05,691 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:03:05,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:03:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:18,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 7644 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 11:03:18,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4077 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 4041 trivial. 0 not checked. [2022-11-20 11:03:22,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:03:22,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:22,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173290264] [2022-11-20 11:03:22,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173290264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:22,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:22,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:03:22,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620870259] [2022-11-20 11:03:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:22,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:03:22,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:03:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:03:22,278 INFO L87 Difference]: Start difference. First operand 5172 states and 7618 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:03:26,571 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 11:03:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:29,078 INFO L93 Difference]: Finished difference Result 11105 states and 16579 transitions. [2022-11-20 11:03:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:03:29,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 321 [2022-11-20 11:03:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:29,106 INFO L225 Difference]: With dead ends: 11105 [2022-11-20 11:03:29,106 INFO L226 Difference]: Without dead ends: 6072 [2022-11-20 11:03:29,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:03:29,125 INFO L413 NwaCegarLoop]: 4240 mSDtfsCounter, 664 mSDsluCounter, 29244 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 160 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 33484 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:29,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 33484 Invalid, 242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-20 11:03:29,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6072 states. [2022-11-20 11:03:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6072 to 5196. [2022-11-20 11:03:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 3611 states have (on average 1.3411797286070342) internal successors, (4843), 3665 states have internal predecessors, (4843), 1399 states have call successors, (1399), 179 states have call predecessors, (1399), 185 states have return successors, (1426), 1384 states have call predecessors, (1426), 1373 states have call successors, (1426) [2022-11-20 11:03:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7668 transitions. [2022-11-20 11:03:29,690 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7668 transitions. Word has length 321 [2022-11-20 11:03:29,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:29,691 INFO L495 AbstractCegarLoop]: Abstraction has 5196 states and 7668 transitions. [2022-11-20 11:03:29,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:03:29,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7668 transitions. [2022-11-20 11:03:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-20 11:03:29,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:29,707 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:29,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:29,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:03:29,924 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1101493621, now seen corresponding path program 1 times [2022-11-20 11:03:29,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:03:29,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613672298] [2022-11-20 11:03:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:29,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:03:29,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:03:29,934 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:03:29,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:03:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:41,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 7157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:03:41,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3981 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2022-11-20 11:03:43,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:03:43,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:03:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613672298] [2022-11-20 11:03:43,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613672298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:43,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:43,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:03:43,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198586128] [2022-11-20 11:03:43,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:43,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:03:43,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:03:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:03:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:03:43,890 INFO L87 Difference]: Start difference. First operand 5196 states and 7668 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:03:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:48,335 INFO L93 Difference]: Finished difference Result 11459 states and 17184 transitions. [2022-11-20 11:03:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:03:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 287 [2022-11-20 11:03:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:48,364 INFO L225 Difference]: With dead ends: 11459 [2022-11-20 11:03:48,364 INFO L226 Difference]: Without dead ends: 6402 [2022-11-20 11:03:48,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:03:48,385 INFO L413 NwaCegarLoop]: 4677 mSDtfsCounter, 981 mSDsluCounter, 22137 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 26814 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:48,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 26814 Invalid, 326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [250 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 11:03:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2022-11-20 11:03:48,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 5267. [2022-11-20 11:03:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 3667 states have (on average 1.3386964821379874) internal successors, (4909), 3729 states have internal predecessors, (4909), 1412 states have call successors, (1412), 181 states have call predecessors, (1412), 187 states have return successors, (1439), 1389 states have call predecessors, (1439), 1386 states have call successors, (1439) [2022-11-20 11:03:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 7760 transitions. [2022-11-20 11:03:48,903 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 7760 transitions. Word has length 287 [2022-11-20 11:03:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:48,904 INFO L495 AbstractCegarLoop]: Abstraction has 5267 states and 7760 transitions. [2022-11-20 11:03:48,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 11:03:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 7760 transitions. [2022-11-20 11:03:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-20 11:03:48,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:48,920 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 7, 7, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:49,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5072321d-855f-46db-b14c-8dcd728bb676/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0