./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- 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 09:27:07,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:07,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:07,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:07,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:07,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:07,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:07,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:07,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:07,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:07,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:08,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:08,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:08,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:08,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:08,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:08,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:08,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:08,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:08,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:08,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:08,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:08,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:08,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:08,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:08,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:08,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:08,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:08,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:08,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:08,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:08,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:08,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:08,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:08,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:08,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:08,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:08,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:08,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:08,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:08,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:08,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:08,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:08,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:08,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:08,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:08,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:08,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:08,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:08,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:08,096 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:08,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:08,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:08,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:08,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:08,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:08,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:08,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:08,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:08,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:08,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:08,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:08,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:08,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:08,101 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:08,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:08,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:08,102 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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2022-11-20 09:27:08,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:08,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:08,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:08,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:08,453 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:08,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-20 09:27:11,382 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:12,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:12,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-20 09:27:12,080 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/8df9967c9/5907e59eecbb43a79cf8fe2d9ef64907/FLAG734ef7799 [2022-11-20 09:27:12,098 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/8df9967c9/5907e59eecbb43a79cf8fe2d9ef64907 [2022-11-20 09:27:12,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:12,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:12,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:12,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:12,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:12,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8a4bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12, skipping insertion in model container [2022-11-20 09:27:12,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:12,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:12,892 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:27:12,899 INFO L158 Benchmark]: Toolchain (without parser) took 794.29ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 64.6MB in the end (delta: 42.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 09:27:12,900 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:12,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.01ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 64.6MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 09:27:12,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.01ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 64.6MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- 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 09:27:15,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:15,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:15,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:15,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:15,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:15,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:15,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:15,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:15,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:15,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:15,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:15,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:15,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:15,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:15,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:15,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:15,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:15,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:15,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:15,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:15,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:15,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:15,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:15,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:15,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:15,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:15,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:15,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:15,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:15,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:15,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:15,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:15,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:15,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:15,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:15,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:15,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:15,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:15,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:15,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:15,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:27:15,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:15,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:15,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:15,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:15,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:15,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:15,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:15,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:15,437 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:15,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:15,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:15,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:15,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:15,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:15,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:15,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:27:15,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:27:15,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:15,441 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:15,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:15,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:15,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:15,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:15,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:15,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:15,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:15,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:15,445 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:27:15,445 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:27:15,445 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:15,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:15,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:15,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:27:15,447 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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2022-11-20 09:27:15,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:15,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:15,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:15,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:15,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:15,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-20 09:27:18,993 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:19,664 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:19,665 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-20 09:27:19,706 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/37bf6fc4b/2dfaad413b1f4188bed27594042a088d/FLAG4e8c8b726 [2022-11-20 09:27:19,725 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/data/37bf6fc4b/2dfaad413b1f4188bed27594042a088d [2022-11-20 09:27:19,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:19,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:19,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:19,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:19,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:19,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:19" (1/1) ... [2022-11-20 09:27:19,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99f60f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:19, skipping insertion in model container [2022-11-20 09:27:19,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:19" (1/1) ... [2022-11-20 09:27:19,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:19,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:20,959 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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-11-20 09:27:21,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:21,631 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:27:21,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:21,863 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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-11-20 09:27:22,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:22,177 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:22,348 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_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2022-11-20 09:27:22,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:22,828 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:22,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22 WrapperNode [2022-11-20 09:27:22,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:22,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:22,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:22,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:22,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:22,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,314 INFO L138 Inliner]: procedures = 260, calls = 3570, calls flagged for inlining = 118, calls inlined = 118, statements flattened = 6471 [2022-11-20 09:27:23,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:23,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:23,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:23,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:23,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:23,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:23,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:23,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:23,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (1/1) ... [2022-11-20 09:27:23,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:23,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:23,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:23,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-11-20 09:27:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-11-20 09:27:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-11-20 09:27:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-11-20 09:27:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:27:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:27:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:27:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2022-11-20 09:27:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2022-11-20 09:27:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:27:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:27:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:27:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:27:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:27:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2022-11-20 09:27:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2022-11-20 09:27:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-20 09:27:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-20 09:27:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-20 09:27:23,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-20 09:27:23,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2022-11-20 09:27:23,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2022-11-20 09:27:23,915 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-11-20 09:27:23,915 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-11-20 09:27:23,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:23,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:23,916 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-20 09:27:23,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-20 09:27:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-20 09:27:23,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-20 09:27:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-11-20 09:27:23,918 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-11-20 09:27:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:27:23,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:27:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 09:27:23,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 09:27:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-20 09:27:23,919 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-20 09:27:23,919 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-20 09:27:23,919 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-20 09:27:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 09:27:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 09:27:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-20 09:27:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-20 09:27:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:27:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-11-20 09:27:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-11-20 09:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-11-20 09:27:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-11-20 09:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-11-20 09:27:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-11-20 09:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 09:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-11-20 09:27:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-11-20 09:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-20 09:27:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-20 09:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-11-20 09:27:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-11-20 09:27:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-20 09:27:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:27:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-11-20 09:27:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:27:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 09:27:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:27:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-20 09:27:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-20 09:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:27:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 09:27:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 09:27:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 09:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-11-20 09:27:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-11-20 09:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2022-11-20 09:27:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2022-11-20 09:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-11-20 09:27:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-11-20 09:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-11-20 09:27:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-11-20 09:27:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:27:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:27:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 09:27:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 09:27:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-11-20 09:27:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-11-20 09:27:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:27:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:27:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-11-20 09:27:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-11-20 09:27:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2022-11-20 09:27:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2022-11-20 09:27:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-11-20 09:27:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-11-20 09:27:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-11-20 09:27:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-11-20 09:27:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-20 09:27:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-20 09:27:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:27:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:27:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 09:27:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 09:27:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-11-20 09:27:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-11-20 09:27:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-11-20 09:27:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-11-20 09:27:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 09:27:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 09:27:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-20 09:27:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-20 09:27:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-11-20 09:27:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-11-20 09:27:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-11-20 09:27:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-11-20 09:27:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-11-20 09:27:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-11-20 09:27:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-11-20 09:27:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:27:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-20 09:27:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-20 09:27:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-11-20 09:27:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-11-20 09:27:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-11-20 09:27:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-11-20 09:27:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-20 09:27:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:27:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2022-11-20 09:27:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:27:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:27:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:27:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-20 09:27:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-20 09:27:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-20 09:27:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-20 09:27:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-11-20 09:27:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-11-20 09:27:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2022-11-20 09:27:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2022-11-20 09:27:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-11-20 09:27:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-11-20 09:27:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-11-20 09:27:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-11-20 09:27:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-11-20 09:27:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-11-20 09:27:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:27:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:27:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-20 09:27:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-20 09:27:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:27:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-20 09:27:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-20 09:27:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-20 09:27:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-20 09:27:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-11-20 09:27:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-11-20 09:27:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-20 09:27:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-20 09:27:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2022-11-20 09:27:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2022-11-20 09:27:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:27:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:27:24,803 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:24,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:25,418 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:27:34,049 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-20 09:28:07,438 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:07,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:07,457 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:28:07,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:07 BoogieIcfgContainer [2022-11-20 09:28:07,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:07,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:07,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:07,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:07,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:19" (1/3) ... [2022-11-20 09:28:07,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cedec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:07, skipping insertion in model container [2022-11-20 09:28:07,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:22" (2/3) ... [2022-11-20 09:28:07,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cedec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:07, skipping insertion in model container [2022-11-20 09:28:07,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:07" (3/3) ... [2022-11-20 09:28:07,471 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-11-20 09:28:07,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:07,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 09:28:07,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:07,583 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;@6aeed258, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:07,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 09:28:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 1451 states, 1022 states have (on average 1.3385518590998042) internal successors, (1368), 1058 states have internal predecessors, (1368), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) [2022-11-20 09:28:07,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 09:28:07,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:07,618 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:07,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:07,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1642037041, now seen corresponding path program 1 times [2022-11-20 09:28:07,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:07,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649749250] [2022-11-20 09:28:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:07,648 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 09:28:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:07,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:07,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 4019 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:28:10,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-20 09:28:10,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:10,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:10,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649749250] [2022-11-20 09:28:10,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649749250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:10,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:10,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:28:10,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069602030] [2022-11-20 09:28:10,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:10,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:28:10,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:28:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:28:10,641 INFO L87 Difference]: Start difference. First operand has 1451 states, 1022 states have (on average 1.3385518590998042) internal successors, (1368), 1058 states have internal predecessors, (1368), 346 states have call successors, (346), 83 states have call predecessors, (346), 81 states have return successors, (335), 327 states have call predecessors, (335), 335 states have call successors, (335) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:11,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:11,111 INFO L93 Difference]: Finished difference Result 2900 states and 4184 transitions. [2022-11-20 09:28:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:28:11,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 117 [2022-11-20 09:28:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:11,152 INFO L225 Difference]: With dead ends: 2900 [2022-11-20 09:28:11,153 INFO L226 Difference]: Without dead ends: 1433 [2022-11-20 09:28:11,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:28:11,178 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 2 mSDsluCounter, 4073 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6111 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:11,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6111 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:28:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2022-11-20 09:28:11,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1433. [2022-11-20 09:28:11,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1017 states have (on average 1.3264503441494593) internal successors, (1349), 1040 states have internal predecessors, (1349), 335 states have call successors, (335), 81 states have call predecessors, (335), 80 states have return successors, (329), 321 states have call predecessors, (329), 329 states have call successors, (329) [2022-11-20 09:28:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2013 transitions. [2022-11-20 09:28:11,369 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2013 transitions. Word has length 117 [2022-11-20 09:28:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:11,372 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2013 transitions. [2022-11-20 09:28:11,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2013 transitions. [2022-11-20 09:28:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 09:28:11,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:11,386 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:11,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:11,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash 14788707, now seen corresponding path program 1 times [2022-11-20 09:28:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:11,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298957111] [2022-11-20 09:28:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,620 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 09:28:11,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:11,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:11,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 4030 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-20 09:28:14,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:28:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-11-20 09:28:15,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:15,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298957111] [2022-11-20 09:28:15,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298957111] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:28:15,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 09:28:15,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 09:28:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625729950] [2022-11-20 09:28:15,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 09:28:15,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 09:28:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 09:28:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:28:15,128 INFO L87 Difference]: Start difference. First operand 1433 states and 2013 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 09:28:16,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:16,100 INFO L93 Difference]: Finished difference Result 2845 states and 3998 transitions. [2022-11-20 09:28:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:28:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2022-11-20 09:28:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:16,112 INFO L225 Difference]: With dead ends: 2845 [2022-11-20 09:28:16,112 INFO L226 Difference]: Without dead ends: 1442 [2022-11-20 09:28:16,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:28:16,119 INFO L413 NwaCegarLoop]: 2010 mSDtfsCounter, 11 mSDsluCounter, 10037 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12047 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:16,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12047 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:28:16,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-11-20 09:28:16,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2022-11-20 09:28:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1025 states have (on average 1.326829268292683) internal successors, (1360), 1048 states have internal predecessors, (1360), 335 states have call successors, (335), 82 states have call predecessors, (335), 81 states have return successors, (329), 321 states have call predecessors, (329), 329 states have call successors, (329) [2022-11-20 09:28:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2024 transitions. [2022-11-20 09:28:16,200 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2024 transitions. Word has length 118 [2022-11-20 09:28:16,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:16,201 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2024 transitions. [2022-11-20 09:28:16,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 09:28:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2024 transitions. [2022-11-20 09:28:16,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 09:28:16,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:16,213 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:16,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:16,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:16,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash 632896433, now seen corresponding path program 2 times [2022-11-20 09:28:16,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:16,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356219937] [2022-11-20 09:28:16,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 09:28:16,435 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 09:28:16,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:16,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:16,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:18,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 09:28:18,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:28:18,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 3760 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:18,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:28:18,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:18,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:18,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356219937] [2022-11-20 09:28:18,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356219937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:18,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:18,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:18,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287003591] [2022-11-20 09:28:18,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:18,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:18,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:18,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:18,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:18,812 INFO L87 Difference]: Start difference. First operand 1442 states and 2024 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:19,495 INFO L93 Difference]: Finished difference Result 4194 states and 5886 transitions. [2022-11-20 09:28:19,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 121 [2022-11-20 09:28:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:19,520 INFO L225 Difference]: With dead ends: 4194 [2022-11-20 09:28:19,520 INFO L226 Difference]: Without dead ends: 2793 [2022-11-20 09:28:19,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:19,529 INFO L413 NwaCegarLoop]: 2335 mSDtfsCounter, 1918 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 4301 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:19,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1918 Valid, 4301 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 09:28:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2022-11-20 09:28:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2790. [2022-11-20 09:28:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 1990 states have (on average 1.329145728643216) internal successors, (2645), 2031 states have internal predecessors, (2645), 638 states have call successors, (638), 162 states have call predecessors, (638), 161 states have return successors, (632), 616 states have call predecessors, (632), 632 states have call successors, (632) [2022-11-20 09:28:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3915 transitions. [2022-11-20 09:28:19,680 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3915 transitions. Word has length 121 [2022-11-20 09:28:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:19,681 INFO L495 AbstractCegarLoop]: Abstraction has 2790 states and 3915 transitions. [2022-11-20 09:28:19,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:28:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3915 transitions. [2022-11-20 09:28:19,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 09:28:19,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:19,693 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:19,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:19,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:19,907 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:19,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:19,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1906604008, now seen corresponding path program 1 times [2022-11-20 09:28:19,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:19,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704001901] [2022-11-20 09:28:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:19,913 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 09:28:19,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:19,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:19,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:22,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 09:28:22,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:28:24,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:24,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:24,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704001901] [2022-11-20 09:28:24,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704001901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:24,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:24,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:28:24,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316399499] [2022-11-20 09:28:24,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:24,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:28:24,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:28:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:28:24,686 INFO L87 Difference]: Start difference. First operand 2790 states and 3915 transitions. Second operand has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 09:28:36,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:36,130 INFO L93 Difference]: Finished difference Result 7992 states and 11662 transitions. [2022-11-20 09:28:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:28:36,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 133 [2022-11-20 09:28:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:36,164 INFO L225 Difference]: With dead ends: 7992 [2022-11-20 09:28:36,165 INFO L226 Difference]: Without dead ends: 5243 [2022-11-20 09:28:36,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-20 09:28:36,176 INFO L413 NwaCegarLoop]: 2804 mSDtfsCounter, 2696 mSDsluCounter, 27346 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 30150 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:36,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 30150 Invalid, 1381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [486 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-20 09:28:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2022-11-20 09:28:36,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 2797. [2022-11-20 09:28:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1995 states have (on average 1.3283208020050126) internal successors, (2650), 2036 states have internal predecessors, (2650), 639 states have call successors, (639), 162 states have call predecessors, (639), 162 states have return successors, (642), 618 states have call predecessors, (642), 633 states have call successors, (642) [2022-11-20 09:28:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3931 transitions. [2022-11-20 09:28:36,377 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3931 transitions. Word has length 133 [2022-11-20 09:28:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:36,378 INFO L495 AbstractCegarLoop]: Abstraction has 2797 states and 3931 transitions. [2022-11-20 09:28:36,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 09:28:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3931 transitions. [2022-11-20 09:28:36,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 09:28:36,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:36,382 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:36,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:36,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:36,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:36,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1513576998, now seen corresponding path program 1 times [2022-11-20 09:28:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:36,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218336226] [2022-11-20 09:28:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:36,613 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 09:28:36,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:36,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:36,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:28:39,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:28:43,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:43,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:43,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218336226] [2022-11-20 09:28:43,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218336226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:43,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:43,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:43,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582772703] [2022-11-20 09:28:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:43,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:43,462 INFO L87 Difference]: Start difference. First operand 2797 states and 3931 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:44,061 INFO L93 Difference]: Finished difference Result 8308 states and 11862 transitions. [2022-11-20 09:28:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2022-11-20 09:28:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:44,102 INFO L225 Difference]: With dead ends: 8308 [2022-11-20 09:28:44,102 INFO L226 Difference]: Without dead ends: 5552 [2022-11-20 09:28:44,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 09:28:44,118 INFO L413 NwaCegarLoop]: 2477 mSDtfsCounter, 1952 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:44,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 4432 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:28:44,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-11-20 09:28:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 5541. [2022-11-20 09:28:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5541 states, 3960 states have (on average 1.3285353535353535) internal successors, (5261), 4037 states have internal predecessors, (5261), 1257 states have call successors, (1257), 322 states have call predecessors, (1257), 323 states have return successors, (1339), 1221 states have call predecessors, (1339), 1251 states have call successors, (1339) [2022-11-20 09:28:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5541 states to 5541 states and 7857 transitions. [2022-11-20 09:28:44,671 INFO L78 Accepts]: Start accepts. Automaton has 5541 states and 7857 transitions. Word has length 133 [2022-11-20 09:28:44,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:44,672 INFO L495 AbstractCegarLoop]: Abstraction has 5541 states and 7857 transitions. [2022-11-20 09:28:44,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:44,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5541 states and 7857 transitions. [2022-11-20 09:28:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 09:28:44,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:44,677 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:44,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:44,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:44,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash -324454806, now seen corresponding path program 1 times [2022-11-20 09:28:44,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:44,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948870984] [2022-11-20 09:28:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:44,897 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 09:28:44,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:44,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:44,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:47,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 4096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:28:47,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:28:51,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:51,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:51,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948870984] [2022-11-20 09:28:51,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948870984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:51,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:51,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164384704] [2022-11-20 09:28:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:51,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:51,599 INFO L87 Difference]: Start difference. First operand 5541 states and 7857 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:51,960 INFO L93 Difference]: Finished difference Result 5543 states and 7858 transitions. [2022-11-20 09:28:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2022-11-20 09:28:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:51,991 INFO L225 Difference]: With dead ends: 5543 [2022-11-20 09:28:51,991 INFO L226 Difference]: Without dead ends: 5540 [2022-11-20 09:28:51,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 09:28:51,996 INFO L413 NwaCegarLoop]: 2009 mSDtfsCounter, 1921 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:51,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 2009 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:28:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2022-11-20 09:28:52,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5540. [2022-11-20 09:28:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5540 states, 3960 states have (on average 1.3282828282828283) internal successors, (5260), 4036 states have internal predecessors, (5260), 1256 states have call successors, (1256), 322 states have call predecessors, (1256), 323 states have return successors, (1339), 1221 states have call predecessors, (1339), 1251 states have call successors, (1339) [2022-11-20 09:28:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 7855 transitions. [2022-11-20 09:28:52,521 INFO L78 Accepts]: Start accepts. Automaton has 5540 states and 7855 transitions. Word has length 134 [2022-11-20 09:28:52,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:52,522 INFO L495 AbstractCegarLoop]: Abstraction has 5540 states and 7855 transitions. [2022-11-20 09:28:52,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:52,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5540 states and 7855 transitions. [2022-11-20 09:28:52,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-20 09:28:52,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:52,527 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:52,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:52,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:52,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:52,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:52,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1468861015, now seen corresponding path program 1 times [2022-11-20 09:28:52,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:52,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985000884] [2022-11-20 09:28:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:52,750 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 09:28:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:52,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:52,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:55,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 4097 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:55,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:28:57,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:28:57,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:28:57,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985000884] [2022-11-20 09:28:57,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985000884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:57,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:57,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:57,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480842836] [2022-11-20 09:28:57,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:57,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:28:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:57,425 INFO L87 Difference]: Start difference. First operand 5540 states and 7855 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:57,825 INFO L93 Difference]: Finished difference Result 5542 states and 7856 transitions. [2022-11-20 09:28:57,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2022-11-20 09:28:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:28:57,854 INFO L225 Difference]: With dead ends: 5542 [2022-11-20 09:28:57,855 INFO L226 Difference]: Without dead ends: 5539 [2022-11-20 09:28:57,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:57,858 INFO L413 NwaCegarLoop]: 2007 mSDtfsCounter, 1918 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:28:57,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1918 Valid, 2007 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:28:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2022-11-20 09:28:58,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5539. [2022-11-20 09:28:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 3960 states have (on average 1.3280303030303031) internal successors, (5259), 4035 states have internal predecessors, (5259), 1255 states have call successors, (1255), 322 states have call predecessors, (1255), 323 states have return successors, (1339), 1221 states have call predecessors, (1339), 1251 states have call successors, (1339) [2022-11-20 09:28:58,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7853 transitions. [2022-11-20 09:28:58,452 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7853 transitions. Word has length 135 [2022-11-20 09:28:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:28:58,453 INFO L495 AbstractCegarLoop]: Abstraction has 5539 states and 7853 transitions. [2022-11-20 09:28:58,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:28:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7853 transitions. [2022-11-20 09:28:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-20 09:28:58,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:28:58,460 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:58,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:58,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:58,675 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:28:58,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:58,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1709257037, now seen corresponding path program 1 times [2022-11-20 09:28:58,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:28:58,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159428912] [2022-11-20 09:28:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:58,683 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 09:28:58,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:28:58,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:28:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:01,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 4098 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:01,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:29:03,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:03,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:03,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159428912] [2022-11-20 09:29:03,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159428912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:03,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:03,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:03,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872147982] [2022-11-20 09:29:03,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:03,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:03,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:03,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:03,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:03,526 INFO L87 Difference]: Start difference. First operand 5539 states and 7853 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:29:04,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:04,344 INFO L93 Difference]: Finished difference Result 16464 states and 23638 transitions. [2022-11-20 09:29:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:04,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2022-11-20 09:29:04,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:04,393 INFO L225 Difference]: With dead ends: 16464 [2022-11-20 09:29:04,394 INFO L226 Difference]: Without dead ends: 10966 [2022-11-20 09:29:04,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:04,417 INFO L413 NwaCegarLoop]: 2552 mSDtfsCounter, 1888 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:04,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 4530 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:29:04,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-11-20 09:29:05,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 10944. [2022-11-20 09:29:05,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10944 states, 7840 states have (on average 1.3298469387755103) internal successors, (10426), 7992 states have internal predecessors, (10426), 2462 states have call successors, (2462), 639 states have call predecessors, (2462), 641 states have return successors, (2777), 2392 states have call predecessors, (2777), 2455 states have call successors, (2777) [2022-11-20 09:29:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10944 states to 10944 states and 15665 transitions. [2022-11-20 09:29:05,609 INFO L78 Accepts]: Start accepts. Automaton has 10944 states and 15665 transitions. Word has length 136 [2022-11-20 09:29:05,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:05,610 INFO L495 AbstractCegarLoop]: Abstraction has 10944 states and 15665 transitions. [2022-11-20 09:29:05,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:29:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand 10944 states and 15665 transitions. [2022-11-20 09:29:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 09:29:05,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:05,615 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:29:05,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:05,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:05,835 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1446673708, now seen corresponding path program 1 times [2022-11-20 09:29:05,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:05,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850332002] [2022-11-20 09:29:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:05,840 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 09:29:05,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:05,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:05,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:08,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 4099 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:08,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-11-20 09:29:10,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:10,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:10,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850332002] [2022-11-20 09:29:10,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850332002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:10,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:10,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:10,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169919872] [2022-11-20 09:29:10,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:10,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:10,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:10,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:10,412 INFO L87 Difference]: Start difference. First operand 10944 states and 15665 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:29:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:11,231 INFO L93 Difference]: Finished difference Result 10946 states and 15666 transitions. [2022-11-20 09:29:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:11,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2022-11-20 09:29:11,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:11,286 INFO L225 Difference]: With dead ends: 10946 [2022-11-20 09:29:11,286 INFO L226 Difference]: Without dead ends: 10925 [2022-11-20 09:29:11,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:11,293 INFO L413 NwaCegarLoop]: 2006 mSDtfsCounter, 1914 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:11,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:29:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-11-20 09:29:12,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 10925. [2022-11-20 09:29:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10925 states, 7826 states have (on average 1.3297981088678763) internal successors, (10407), 7977 states have internal predecessors, (10407), 2459 states have call successors, (2459), 637 states have call predecessors, (2459), 639 states have return successors, (2775), 2390 states have call predecessors, (2775), 2453 states have call successors, (2775) [2022-11-20 09:29:12,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10925 states to 10925 states and 15641 transitions. [2022-11-20 09:29:12,414 INFO L78 Accepts]: Start accepts. Automaton has 10925 states and 15641 transitions. Word has length 137 [2022-11-20 09:29:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:12,415 INFO L495 AbstractCegarLoop]: Abstraction has 10925 states and 15641 transitions. [2022-11-20 09:29:12,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 09:29:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10925 states and 15641 transitions. [2022-11-20 09:29:12,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 09:29:12,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:12,423 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 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] [2022-11-20 09:29:12,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:12,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:12,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:12,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:12,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1164876692, now seen corresponding path program 1 times [2022-11-20 09:29:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:12,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408058301] [2022-11-20 09:29:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:12,645 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 09:29:12,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:12,656 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:12,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:15,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 4246 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:15,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-20 09:29:15,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:15,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:15,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408058301] [2022-11-20 09:29:15,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408058301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:15,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:15,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:15,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061163220] [2022-11-20 09:29:15,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:15,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:15,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:15,586 INFO L87 Difference]: Start difference. First operand 10925 states and 15641 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 09:29:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:18,161 INFO L93 Difference]: Finished difference Result 32254 states and 46108 transitions. [2022-11-20 09:29:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:18,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 158 [2022-11-20 09:29:18,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:18,266 INFO L225 Difference]: With dead ends: 32254 [2022-11-20 09:29:18,266 INFO L226 Difference]: Without dead ends: 21370 [2022-11-20 09:29:18,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:18,313 INFO L413 NwaCegarLoop]: 2309 mSDtfsCounter, 1898 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:18,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 4254 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:29:18,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21370 states. [2022-11-20 09:29:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21370 to 21318. [2022-11-20 09:29:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21318 states, 15287 states have (on average 1.3294302348400602) internal successors, (20323), 15582 states have internal predecessors, (20323), 4762 states have call successors, (4762), 1262 states have call predecessors, (4762), 1268 states have return successors, (5380), 4633 states have call predecessors, (5380), 4756 states have call successors, (5380) [2022-11-20 09:29:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21318 states to 21318 states and 30465 transitions. [2022-11-20 09:29:20,912 INFO L78 Accepts]: Start accepts. Automaton has 21318 states and 30465 transitions. Word has length 158 [2022-11-20 09:29:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:20,913 INFO L495 AbstractCegarLoop]: Abstraction has 21318 states and 30465 transitions. [2022-11-20 09:29:20,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 09:29:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 21318 states and 30465 transitions. [2022-11-20 09:29:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-20 09:29:20,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:20,936 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:21,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:21,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:21,151 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:21,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:21,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1438268467, now seen corresponding path program 1 times [2022-11-20 09:29:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:21,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527649780] [2022-11-20 09:29:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:21,157 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 09:29:21,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:21,159 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:21,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:24,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 4619 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:24,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-20 09:29:24,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:24,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:24,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527649780] [2022-11-20 09:29:24,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527649780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:24,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:24,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6361779] [2022-11-20 09:29:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:24,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:24,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:24,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:24,342 INFO L87 Difference]: Start difference. First operand 21318 states and 30465 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 09:29:30,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:30,275 INFO L93 Difference]: Finished difference Result 58664 states and 83449 transitions. [2022-11-20 09:29:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 216 [2022-11-20 09:29:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:30,458 INFO L225 Difference]: With dead ends: 58664 [2022-11-20 09:29:30,458 INFO L226 Difference]: Without dead ends: 37394 [2022-11-20 09:29:30,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:30,527 INFO L413 NwaCegarLoop]: 2549 mSDtfsCounter, 1514 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:30,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 4422 Invalid, 86 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 09:29:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37394 states. [2022-11-20 09:29:34,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37394 to 37330. [2022-11-20 09:29:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37330 states, 26643 states have (on average 1.3170063431295274) internal successors, (35089), 27218 states have internal predecessors, (35089), 8350 states have call successors, (8350), 2322 states have call predecessors, (8350), 2336 states have return successors, (9532), 8093 states have call predecessors, (9532), 8344 states have call successors, (9532) [2022-11-20 09:29:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37330 states to 37330 states and 52971 transitions. [2022-11-20 09:29:34,524 INFO L78 Accepts]: Start accepts. Automaton has 37330 states and 52971 transitions. Word has length 216 [2022-11-20 09:29:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:34,525 INFO L495 AbstractCegarLoop]: Abstraction has 37330 states and 52971 transitions. [2022-11-20 09:29:34,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 09:29:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 37330 states and 52971 transitions. [2022-11-20 09:29:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-20 09:29:34,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:34,549 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 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] [2022-11-20 09:29:34,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:34,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:34,764 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:34,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1942105020, now seen corresponding path program 1 times [2022-11-20 09:29:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:34,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711007845] [2022-11-20 09:29:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:34,770 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 09:29:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:34,771 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:34,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:37,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 4384 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 09:29:37,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:37,874 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-20 09:29:37,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:37,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:37,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711007845] [2022-11-20 09:29:37,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711007845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:37,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:37,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:29:37,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379726662] [2022-11-20 09:29:37,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:37,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:29:37,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:37,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:29:37,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:29:37,877 INFO L87 Difference]: Start difference. First operand 37330 states and 52971 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:29:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:29:41,825 INFO L93 Difference]: Finished difference Result 74671 states and 105963 transitions. [2022-11-20 09:29:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:29:41,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 210 [2022-11-20 09:29:41,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:29:42,019 INFO L225 Difference]: With dead ends: 74671 [2022-11-20 09:29:42,019 INFO L226 Difference]: Without dead ends: 37379 [2022-11-20 09:29:42,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:29:42,124 INFO L413 NwaCegarLoop]: 2011 mSDtfsCounter, 18 mSDsluCounter, 4001 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 09:29:42,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 6012 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 09:29:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37379 states. [2022-11-20 09:29:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37379 to 37339. [2022-11-20 09:29:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37339 states, 26652 states have (on average 1.3167492120666366) internal successors, (35094), 27227 states have internal predecessors, (35094), 8350 states have call successors, (8350), 2322 states have call predecessors, (8350), 2336 states have return successors, (9532), 8093 states have call predecessors, (9532), 8344 states have call successors, (9532) [2022-11-20 09:29:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37339 states to 37339 states and 52976 transitions. [2022-11-20 09:29:45,920 INFO L78 Accepts]: Start accepts. Automaton has 37339 states and 52976 transitions. Word has length 210 [2022-11-20 09:29:45,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:29:45,920 INFO L495 AbstractCegarLoop]: Abstraction has 37339 states and 52976 transitions. [2022-11-20 09:29:45,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-20 09:29:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 37339 states and 52976 transitions. [2022-11-20 09:29:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-20 09:29:45,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:29:45,938 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:45,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:46,159 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 09:29:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 655195275, now seen corresponding path program 1 times [2022-11-20 09:29:46,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:29:46,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618133216] [2022-11-20 09:29:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:46,165 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 09:29:46,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:29:46,167 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:46,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba5588f3-8e83-4abf-b2cc-0a2e3eff7211/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 09:29:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:48,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 4586 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:29:48,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-11-20 09:29:49,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:29:49,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:29:49,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618133216] [2022-11-20 09:29:49,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618133216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:49,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:49,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:29:49,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748199685] [2022-11-20 09:29:49,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:49,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:49,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:29:49,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:49,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:49,137 INFO L87 Difference]: Start difference. First operand 37339 states and 52976 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)