./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--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:01:00,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:01:00,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:01:00,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:01:00,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:01:00,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:01:00,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:01:00,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:01:00,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:01:00,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:01:00,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:01:00,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:01:00,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:01:00,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:01:00,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:01:00,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:01:00,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:01:00,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:01:00,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:01:00,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:01:00,260 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:01:00,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:01:00,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:01:00,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:01:00,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:01:00,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:01:00,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:01:00,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:01:00,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:01:00,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:01:00,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:01:00,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:01:00,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:01:00,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:01:00,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:01:00,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:01:00,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:01:00,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:01:00,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:01:00,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:01:00,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:01:00,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:01:00,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:01:00,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:01:00,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:01:00,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:01:00,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:01:00,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:01:00,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:01:00,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:01:00,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:01:00,307 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:01:00,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:01:00,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:01:00,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:01:00,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:01:00,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:01:00,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:01:00,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:01:00,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:01:00,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:01:00,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:01:00,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:01:00,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:01:00,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:01:00,311 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:01:00,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:01:00,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:01:00,311 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-21 11:01:00,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:01:00,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:01:00,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:01:00,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:01:00,637 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:01:00,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-21 11:01:00,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cda289a/3236cc32b2b541baadae4386f9649bbb/FLAG17165dce6 [2022-07-21 11:01:01,459 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:01:01,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-21 11:01:01,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cda289a/3236cc32b2b541baadae4386f9649bbb/FLAG17165dce6 [2022-07-21 11:01:01,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cda289a/3236cc32b2b541baadae4386f9649bbb [2022-07-21 11:01:01,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:01:01,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:01:01,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:01:01,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:01:01,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:01:01,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:01:01" (1/1) ... [2022-07-21 11:01:01,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148baa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:01, skipping insertion in model container [2022-07-21 11:01:01,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:01:01" (1/1) ... [2022-07-21 11:01:01,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:01:02,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:01:02,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-21 11:01:04,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:01:04,066 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:01:04,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-21 11:01:04,269 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) 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:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) 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) [2022-07-21 11:01:04,277 INFO L158 Benchmark]: Toolchain (without parser) took 2308.80ms. Allocated memory was 62.9MB in the beginning and 117.4MB in the end (delta: 54.5MB). Free memory was 38.9MB in the beginning and 43.5MB in the end (delta: -4.6MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2022-07-21 11:01:04,278 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 11:01:04,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2306.61ms. Allocated memory was 62.9MB in the beginning and 117.4MB in the end (delta: 54.5MB). Free memory was 38.8MB in the beginning and 43.5MB in the end (delta: -4.8MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2022-07-21 11:01:04,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2306.61ms. Allocated memory was 62.9MB in the beginning and 117.4MB in the end (delta: 54.5MB). Free memory was 38.8MB in the beginning and 43.5MB in the end (delta: -4.8MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) 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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:01:05,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:01:05,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:01:05,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:01:05,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:01:05,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:01:05,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:01:05,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:01:05,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:01:05,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:01:05,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:01:05,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:01:05,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:01:05,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:01:05,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:01:06,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:01:06,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:01:06,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:01:06,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:01:06,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:01:06,010 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:01:06,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:01:06,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:01:06,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:01:06,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:01:06,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:01:06,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:01:06,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:01:06,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:01:06,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:01:06,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:01:06,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:01:06,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:01:06,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:01:06,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:01:06,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:01:06,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:01:06,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:01:06,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:01:06,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:01:06,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:01:06,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:01:06,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 11:01:06,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:01:06,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:01:06,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:01:06,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:01:06,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:01:06,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:01:06,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:01:06,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:01:06,064 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:01:06,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:01:06,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:01:06,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:01:06,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:01:06,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:01:06,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 11:01:06,066 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 11:01:06,066 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 11:01:06,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:01:06,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:01:06,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:01:06,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:01:06,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:01:06,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:01:06,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:01:06,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:01:06,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:01:06,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:01:06,068 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 11:01:06,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 11:01:06,069 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:01:06,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:01:06,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:01:06,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 11:01:06,070 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-21 11:01:06,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:01:06,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:01:06,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:01:06,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:01:06,396 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:01:06,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-21 11:01:06,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2c92bb7/982a6c67641e452f8910562070400d98/FLAGc5ed3309f [2022-07-21 11:01:07,193 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:01:07,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-21 11:01:07,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2c92bb7/982a6c67641e452f8910562070400d98/FLAGc5ed3309f [2022-07-21 11:01:07,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f2c92bb7/982a6c67641e452f8910562070400d98 [2022-07-21 11:01:07,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:01:07,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:01:07,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:01:07,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:01:07,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:01:07,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:01:07" (1/1) ... [2022-07-21 11:01:07,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cdee1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:07, skipping insertion in model container [2022-07-21 11:01:07,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:01:07" (1/1) ... [2022-07-21 11:01:07,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:01:07,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:01:08,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-21 11:01:09,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:01:09,631 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 11:01:09,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:01:09,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-21 11:01:10,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:01:10,076 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:01:10,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-21 11:01:10,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:01:10,681 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:01:10,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10 WrapperNode [2022-07-21 11:01:10,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:01:10,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:01:10,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:01:10,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:01:10,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:10,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:10,921 INFO L137 Inliner]: procedures = 330, calls = 2397, calls flagged for inlining = 150, calls inlined = 146, statements flattened = 5383 [2022-07-21 11:01:10,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:01:10,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:01:10,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:01:10,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:01:10,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:10,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:10,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:10,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:11,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:11,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:11,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:11,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:01:11,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:01:11,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:01:11,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:01:11,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (1/1) ... [2022-07-21 11:01:11,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:01:11,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:01:11,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:01:11,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:01:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 11:01:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 11:01:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 11:01:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2022-07-21 11:01:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2022-07-21 11:01:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ind_if_updown [2022-07-21 11:01:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ind_if_updown [2022-07-21 11:01:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 11:01:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_rx_complete [2022-07-21 11:01:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_rx_complete [2022-07-21 11:01:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure get_csr [2022-07-21 11:01:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure get_csr [2022-07-21 11:01:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 11:01:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:01:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_19 [2022-07-21 11:01:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_19 [2022-07-21 11:01:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 11:01:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:01:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:01:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:01:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 11:01:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 11:01:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:01:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:01:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure array_le32_to_cpu [2022-07-21 11:01:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure array_le32_to_cpu [2022-07-21 11:01:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 11:01:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 11:01:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:01:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:01:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 11:01:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 11:01:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:01:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv [2022-07-21 11:01:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv [2022-07-21 11:01:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_struct [2022-07-21 11:01:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_struct [2022-07-21 11:01:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:01:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:01:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wibro_send [2022-07-21 11:01:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wibro_send [2022-07-21 11:01:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-21 11:01:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-21 11:01:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:01:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:01:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:01:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:01:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_mac_addr [2022-07-21 11:01:11,359 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_mac_addr [2022-07-21 11:01:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:01:11,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:01:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_send_tx [2022-07-21 11:01:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_send_tx [2022-07-21 11:01:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___1 [2022-07-21 11:01:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___1 [2022-07-21 11:01:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_config [2022-07-21 11:01:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_config [2022-07-21 11:01:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_rcv_complete [2022-07-21 11:01:11,361 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_rcv_complete [2022-07-21 11:01:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:01:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:01:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2022-07-21 11:01:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2022-07-21 11:01:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_data [2022-07-21 11:01:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_data [2022-07-21 11:01:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-21 11:01:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-21 11:01:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-07-21 11:01:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-07-21 11:01:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-21 11:01:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-21 11:01:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:01:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:01:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-21 11:01:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-21 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-21 11:01:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-21 11:01:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure download_image [2022-07-21 11:01:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure download_image [2022-07-21 11:01:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:01:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:01:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 11:01:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 11:01:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 11:01:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:01:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 11:01:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-21 11:01:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-21 11:01:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:01:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-21 11:01:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-21 11:01:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:01:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:01:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 11:01:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 11:01:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 11:01:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 11:01:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 11:01:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 11:01:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 11:01:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 11:01:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 11:01:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 11:01:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:01:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:01:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 11:01:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 11:01:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry [2022-07-21 11:01:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry [2022-07-21 11:01:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 11:01:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 11:01:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:01:11,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:01:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv_cb [2022-07-21 11:01:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv_cb [2022-07-21 11:01:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_rcv [2022-07-21 11:01:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_rcv [2022-07-21 11:01:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:01:11,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:01:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 11:01:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 11:01:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 11:01:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 11:01:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tx_struct [2022-07-21 11:01:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tx_struct [2022-07-21 11:01:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:01:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:01:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 11:01:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 11:01:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_resume [2022-07-21 11:01:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_resume [2022-07-21 11:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-07-21 11:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-07-21 11:01:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-07-21 11:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:01:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure extract_qos_list [2022-07-21 11:01:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_qos_list [2022-07-21 11:01:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 11:01:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 11:01:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-21 11:01:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-21 11:01:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-21 11:01:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-21 11:01:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 11:01:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 11:01:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:01:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:01:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_recv_qos_hci_packet [2022-07-21 11:01:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_recv_qos_hci_packet [2022-07-21 11:01:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:01:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:01:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 11:01:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 11:01:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-21 11:01:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-21 11:01:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:01:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:01:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send_complete [2022-07-21 11:01:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send_complete [2022-07-21 11:01:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:01:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:01:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-07-21 11:01:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 11:01:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 11:01:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 11:01:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 11:01:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 11:01:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 11:01:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 11:01:11,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 11:01:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:01:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:01:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:01:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:01:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_disconnect [2022-07-21 11:01:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_disconnect [2022-07-21 11:01:11,391 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_netif_rx [2022-07-21 11:01:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_netif_rx [2022-07-21 11:01:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure send_qos_list [2022-07-21 11:01:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure send_qos_list [2022-07-21 11:01:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:01:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure kdelete [2022-07-21 11:01:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kdelete [2022-07-21 11:01:11,392 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_transmit_pkt [2022-07-21 11:01:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_transmit_pkt [2022-07-21 11:01:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 11:01:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 11:01:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:01:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 11:01:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 11:01:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure em_download_image [2022-07-21 11:01:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure em_download_image [2022-07-21 11:01:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:01:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:01:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 11:01:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 11:01:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:01:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:01:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 11:01:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_29 [2022-07-21 11:01:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_29 [2022-07-21 11:01:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rx_struct [2022-07-21 11:01:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rx_struct [2022-07-21 11:01:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_qos_release_list [2022-07-21 11:01:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_qos_release_list [2022-07-21 11:01:11,395 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 11:01:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 11:01:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:01:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 11:01:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 11:01:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 11:01:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 11:01:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 11:01:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_struct [2022-07-21 11:01:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_struct [2022-07-21 11:01:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure free_event_entry [2022-07-21 11:01:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure free_event_entry [2022-07-21 11:01:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 11:01:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 11:01:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_send [2022-07-21 11:01:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_send [2022-07-21 11:01:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure do_pm_control [2022-07-21 11:01:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pm_control [2022-07-21 11:01:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-21 11:01:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-21 11:01:11,398 INFO L130 BoogieDeclarations]: Found specification of procedure __gdm_usb_send_complete [2022-07-21 11:01:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __gdm_usb_send_complete [2022-07-21 11:01:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 11:01:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 11:01:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_qos_entry [2022-07-21 11:01:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_qos_entry [2022-07-21 11:01:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send [2022-07-21 11:01:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send [2022-07-21 11:01:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 11:01:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure release_usb [2022-07-21 11:01:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure release_usb [2022-07-21 11:01:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ioctl [2022-07-21 11:01:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ioctl [2022-07-21 11:01:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_receive [2022-07-21 11:01:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_receive [2022-07-21 11:01:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-21 11:01:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-21 11:01:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_stats [2022-07-21 11:01:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_stats [2022-07-21 11:01:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry_list [2022-07-21 11:01:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry_list [2022-07-21 11:01:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:01:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:01:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure em_wait_ack [2022-07-21 11:01:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure em_wait_ack [2022-07-21 11:01:11,402 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:01:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:01:12,210 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:01:12,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:01:12,725 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:01:23,731 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___1FINAL: assume true; [2022-07-21 11:01:39,518 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:01:39,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:01:39,540 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:01:39,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:01:39 BoogieIcfgContainer [2022-07-21 11:01:39,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:01:39,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:01:39,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:01:39,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:01:39,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:01:07" (1/3) ... [2022-07-21 11:01:39,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658aae37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:01:39, skipping insertion in model container [2022-07-21 11:01:39,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:01:10" (2/3) ... [2022-07-21 11:01:39,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658aae37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:01:39, skipping insertion in model container [2022-07-21 11:01:39,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:01:39" (3/3) ... [2022-07-21 11:01:39,552 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-21 11:01:39,564 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:01:39,564 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:01:39,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:01:39,651 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@cb0bac6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62c851db [2022-07-21 11:01:39,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:01:39,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-21 11:01:39,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 11:01:39,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:39,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:01:39,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:39,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1607665857, now seen corresponding path program 1 times [2022-07-21 11:01:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:39,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737228993] [2022-07-21 11:01:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:39,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:39,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:39,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:39,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 11:01:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:41,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:01:41,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:01:41,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:41,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:41,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737228993] [2022-07-21 11:01:41,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737228993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:41,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:41,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:01:41,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529490374] [2022-07-21 11:01:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:41,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:01:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:01:41,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:01:41,202 INFO L87 Difference]: Start difference. First operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 11:01:41,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:41,581 INFO L93 Difference]: Finished difference Result 3764 states and 5509 transitions. [2022-07-21 11:01:41,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:01:41,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-07-21 11:01:41,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:41,614 INFO L225 Difference]: With dead ends: 3764 [2022-07-21 11:01:41,614 INFO L226 Difference]: Without dead ends: 1866 [2022-07-21 11:01:41,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:01:41,634 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8055 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8055 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:01:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-21 11:01:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2022-07-21 11:01:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1277 states have (on average 1.33672670321065) internal successors, (1707), 1314 states have internal predecessors, (1707), 481 states have call successors, (481), 108 states have call predecessors, (481), 107 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-21 11:01:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2663 transitions. [2022-07-21 11:01:41,812 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2663 transitions. Word has length 33 [2022-07-21 11:01:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:41,814 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2663 transitions. [2022-07-21 11:01:41,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 11:01:41,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2663 transitions. [2022-07-21 11:01:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 11:01:41,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:41,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:01:41,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 11:01:42,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:42,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:42,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:42,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1970633324, now seen corresponding path program 1 times [2022-07-21 11:01:42,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:42,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505568386] [2022-07-21 11:01:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:42,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:42,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:42,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:42,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 11:01:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:43,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:01:43,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:01:43,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:01:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 11:01:43,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:43,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505568386] [2022-07-21 11:01:43,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505568386] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:01:43,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 11:01:43,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 11:01:43,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76536510] [2022-07-21 11:01:43,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 11:01:43,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:01:43,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:43,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:01:43,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:01:43,783 INFO L87 Difference]: Start difference. First operand 1866 states and 2663 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 11:01:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:44,155 INFO L93 Difference]: Finished difference Result 3737 states and 5335 transitions. [2022-07-21 11:01:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:01:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2022-07-21 11:01:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:44,168 INFO L225 Difference]: With dead ends: 3737 [2022-07-21 11:01:44,168 INFO L226 Difference]: Without dead ends: 1875 [2022-07-21 11:01:44,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-21 11:01:44,177 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 10 mSDsluCounter, 7976 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10636 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:44,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10636 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:01:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-07-21 11:01:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-07-21 11:01:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1285 states have (on average 1.336964980544747) internal successors, (1718), 1322 states have internal predecessors, (1718), 481 states have call successors, (481), 109 states have call predecessors, (481), 108 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-21 11:01:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2674 transitions. [2022-07-21 11:01:44,249 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2674 transitions. Word has length 34 [2022-07-21 11:01:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:44,249 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2674 transitions. [2022-07-21 11:01:44,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 11:01:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2674 transitions. [2022-07-21 11:01:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 11:01:44,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:44,252 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:01:44,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 11:01:44,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:44,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 271918465, now seen corresponding path program 2 times [2022-07-21 11:01:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:44,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237485642] [2022-07-21 11:01:44,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:01:44,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:44,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:44,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:44,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 11:01:45,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-21 11:01:45,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:01:45,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:01:45,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 11:01:45,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:45,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:45,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237485642] [2022-07-21 11:01:45,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237485642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:45,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:45,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:01:45,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095566892] [2022-07-21 11:01:45,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:45,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:45,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:45,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:45,727 INFO L87 Difference]: Start difference. First operand 1875 states and 2674 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 11:01:46,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:46,035 INFO L93 Difference]: Finished difference Result 5567 states and 7947 transitions. [2022-07-21 11:01:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:46,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-07-21 11:01:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:46,057 INFO L225 Difference]: With dead ends: 5567 [2022-07-21 11:01:46,058 INFO L226 Difference]: Without dead ends: 3707 [2022-07-21 11:01:46,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:46,069 INFO L413 NwaCegarLoop]: 3157 mSDtfsCounter, 2622 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:46,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 5793 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:01:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-21 11:01:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3704. [2022-07-21 11:01:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3366180528182894) internal successors, (3391), 2606 states have internal predecessors, (3391), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-21 11:01:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5287 transitions. [2022-07-21 11:01:46,220 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5287 transitions. Word has length 37 [2022-07-21 11:01:46,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:46,220 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5287 transitions. [2022-07-21 11:01:46,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-21 11:01:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5287 transitions. [2022-07-21 11:01:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 11:01:46,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:46,225 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:01:46,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:01:46,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:46,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash -240920598, now seen corresponding path program 1 times [2022-07-21 11:01:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:46,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005760862] [2022-07-21 11:01:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:46,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:46,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 11:01:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:47,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:01:47,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:01:47,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:47,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005760862] [2022-07-21 11:01:47,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005760862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:47,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:47,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:01:47,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347401940] [2022-07-21 11:01:47,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:47,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:47,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:47,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:47,794 INFO L87 Difference]: Start difference. First operand 3704 states and 5287 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:48,019 INFO L93 Difference]: Finished difference Result 3730 states and 5319 transitions. [2022-07-21 11:01:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:48,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-21 11:01:48,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:48,043 INFO L225 Difference]: With dead ends: 3730 [2022-07-21 11:01:48,044 INFO L226 Difference]: Without dead ends: 3717 [2022-07-21 11:01:48,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:48,048 INFO L413 NwaCegarLoop]: 2677 mSDtfsCounter, 2657 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:48,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2693 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:01:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-21 11:01:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3704. [2022-07-21 11:01:48,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3362238864800946) internal successors, (3390), 2606 states have internal predecessors, (3390), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-21 11:01:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5286 transitions. [2022-07-21 11:01:48,173 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5286 transitions. Word has length 54 [2022-07-21 11:01:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:48,175 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5286 transitions. [2022-07-21 11:01:48,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5286 transitions. [2022-07-21 11:01:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 11:01:48,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:48,178 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:01:48,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:01:48,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:48,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:48,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash -183662296, now seen corresponding path program 1 times [2022-07-21 11:01:48,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:48,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407302703] [2022-07-21 11:01:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:48,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:48,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:48,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:48,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 11:01:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:49,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:01:49,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:01:50,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:50,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:50,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407302703] [2022-07-21 11:01:50,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407302703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:50,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:50,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:01:50,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258432148] [2022-07-21 11:01:50,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:50,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:50,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:50,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:50,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:50,003 INFO L87 Difference]: Start difference. First operand 3704 states and 5286 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:50,298 INFO L93 Difference]: Finished difference Result 11081 states and 16301 transitions. [2022-07-21 11:01:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-21 11:01:50,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:50,349 INFO L225 Difference]: With dead ends: 11081 [2022-07-21 11:01:50,349 INFO L226 Difference]: Without dead ends: 7392 [2022-07-21 11:01:50,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:50,449 INFO L413 NwaCegarLoop]: 3227 mSDtfsCounter, 2680 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 5924 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:50,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 5924 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:01:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2022-07-21 11:01:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7381. [2022-07-21 11:01:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7381 states, 5057 states have (on average 1.335574451255685) internal successors, (6754), 5190 states have internal predecessors, (6754), 1894 states have call successors, (1894), 430 states have call predecessors, (1894), 429 states have return successors, (2130), 1840 states have call predecessors, (2130), 1888 states have call successors, (2130) [2022-07-21 11:01:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 10778 transitions. [2022-07-21 11:01:50,785 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 10778 transitions. Word has length 54 [2022-07-21 11:01:50,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:50,786 INFO L495 AbstractCegarLoop]: Abstraction has 7381 states and 10778 transitions. [2022-07-21 11:01:50,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 10778 transitions. [2022-07-21 11:01:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-21 11:01:50,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:50,789 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:01:50,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 11:01:51,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:51,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1399472197, now seen corresponding path program 1 times [2022-07-21 11:01:51,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:51,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254333633] [2022-07-21 11:01:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:51,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:51,015 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:51,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 11:01:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:52,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 11:01:52,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:01:52,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:52,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:52,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254333633] [2022-07-21 11:01:52,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254333633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:52,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:52,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:01:52,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487700811] [2022-07-21 11:01:52,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:52,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:52,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:52,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:52,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:52,638 INFO L87 Difference]: Start difference. First operand 7381 states and 10778 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:53,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:53,258 INFO L93 Difference]: Finished difference Result 22104 states and 33467 transitions. [2022-07-21 11:01:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:53,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2022-07-21 11:01:53,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:53,369 INFO L225 Difference]: With dead ends: 22104 [2022-07-21 11:01:53,369 INFO L226 Difference]: Without dead ends: 14738 [2022-07-21 11:01:53,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:53,418 INFO L413 NwaCegarLoop]: 4506 mSDtfsCounter, 2658 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 7148 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:53,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 7148 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 11:01:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14738 states. [2022-07-21 11:01:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14738 to 14728. [2022-07-21 11:01:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14728 states, 10090 states have (on average 1.3341922695738355) internal successors, (13462), 10351 states have internal predecessors, (13462), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-21 11:01:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14728 states to 14728 states and 21902 transitions. [2022-07-21 11:01:54,222 INFO L78 Accepts]: Start accepts. Automaton has 14728 states and 21902 transitions. Word has length 55 [2022-07-21 11:01:54,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:54,222 INFO L495 AbstractCegarLoop]: Abstraction has 14728 states and 21902 transitions. [2022-07-21 11:01:54,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:54,223 INFO L276 IsEmpty]: Start isEmpty. Operand 14728 states and 21902 transitions. [2022-07-21 11:01:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 11:01:54,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:54,225 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:01:54,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 11:01:54,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:54,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:54,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash -434868597, now seen corresponding path program 1 times [2022-07-21 11:01:54,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:54,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657777321] [2022-07-21 11:01:54,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:54,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:54,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:54,443 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:54,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 11:01:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:55,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:01:55,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:01:55,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:55,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:55,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657777321] [2022-07-21 11:01:55,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657777321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:55,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:55,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:01:55,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099429166] [2022-07-21 11:01:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:55,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:55,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:55,878 INFO L87 Difference]: Start difference. First operand 14728 states and 21902 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:56,259 INFO L93 Difference]: Finished difference Result 14736 states and 21909 transitions. [2022-07-21 11:01:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:56,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2022-07-21 11:01:56,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:56,327 INFO L225 Difference]: With dead ends: 14736 [2022-07-21 11:01:56,328 INFO L226 Difference]: Without dead ends: 14733 [2022-07-21 11:01:56,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:56,339 INFO L413 NwaCegarLoop]: 4509 mSDtfsCounter, 2655 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:56,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 7150 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:01:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2022-07-21 11:01:56,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14729. [2022-07-21 11:01:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14729 states, 10091 states have (on average 1.3341591517193538) internal successors, (13463), 10352 states have internal predecessors, (13463), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-21 11:01:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14729 states to 14729 states and 21903 transitions. [2022-07-21 11:01:57,069 INFO L78 Accepts]: Start accepts. Automaton has 14729 states and 21903 transitions. Word has length 56 [2022-07-21 11:01:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:01:57,069 INFO L495 AbstractCegarLoop]: Abstraction has 14729 states and 21903 transitions. [2022-07-21 11:01:57,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14729 states and 21903 transitions. [2022-07-21 11:01:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-21 11:01:57,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:01:57,073 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:01:57,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 11:01:57,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:01:57,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:01:57,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:01:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash -596923202, now seen corresponding path program 1 times [2022-07-21 11:01:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:01:57,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836954707] [2022-07-21 11:01:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:01:57,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:01:57,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:01:57,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:01:57,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 11:01:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:01:58,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:01:58,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:01:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:01:58,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:01:58,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:01:58,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836954707] [2022-07-21 11:01:58,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836954707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:01:58,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:01:58,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:01:58,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604289340] [2022-07-21 11:01:58,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:01:58,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:01:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:01:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:01:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:58,713 INFO L87 Difference]: Start difference. First operand 14729 states and 21903 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:01:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:01:59,546 INFO L93 Difference]: Finished difference Result 44130 states and 67948 transitions. [2022-07-21 11:01:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:01:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2022-07-21 11:01:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:01:59,703 INFO L225 Difference]: With dead ends: 44130 [2022-07-21 11:01:59,703 INFO L226 Difference]: Without dead ends: 29416 [2022-07-21 11:01:59,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:01:59,775 INFO L413 NwaCegarLoop]: 3864 mSDtfsCounter, 2607 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 6557 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:01:59,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 6557 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:01:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29416 states. [2022-07-21 11:02:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29416 to 29403. [2022-07-21 11:02:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29403 states, 20137 states have (on average 1.3343099766598798) internal successors, (26869), 20654 states have internal predecessors, (26869), 7552 states have call successors, (7552), 1714 states have call predecessors, (7552), 1713 states have return successors, (10470), 7354 states have call predecessors, (10470), 7546 states have call successors, (10470) [2022-07-21 11:02:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29403 states to 29403 states and 44891 transitions. [2022-07-21 11:02:01,282 INFO L78 Accepts]: Start accepts. Automaton has 29403 states and 44891 transitions. Word has length 57 [2022-07-21 11:02:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:02:01,282 INFO L495 AbstractCegarLoop]: Abstraction has 29403 states and 44891 transitions. [2022-07-21 11:02:01,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:02:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 29403 states and 44891 transitions. [2022-07-21 11:02:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 11:02:01,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:02:01,285 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:02:01,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 11:02:01,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:02:01,498 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:02:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:02:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1325643794, now seen corresponding path program 1 times [2022-07-21 11:02:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:02:01,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9754999] [2022-07-21 11:02:01,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:02:01,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:02:01,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:02:01,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:02:01,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 11:02:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:02:02,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:02:03,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:02:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 11:02:03,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:02:03,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:02:03,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9754999] [2022-07-21 11:02:03,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9754999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:02:03,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:02:03,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 11:02:03,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920783566] [2022-07-21 11:02:03,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:02:03,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:02:03,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:02:03,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:02:03,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:03,132 INFO L87 Difference]: Start difference. First operand 29403 states and 44891 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:02:03,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:02:03,703 INFO L93 Difference]: Finished difference Result 29405 states and 44892 transitions. [2022-07-21 11:02:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:02:03,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-07-21 11:02:03,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:02:04,011 INFO L225 Difference]: With dead ends: 29405 [2022-07-21 11:02:04,011 INFO L226 Difference]: Without dead ends: 29391 [2022-07-21 11:02:04,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:04,028 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 2611 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 2660 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 [2022-07-21 11:02:04,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:02:04,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29391 states. [2022-07-21 11:02:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29391 to 29391. [2022-07-21 11:02:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29391 states, 20127 states have (on average 1.3342276543945943) internal successors, (26854), 20643 states have internal predecessors, (26854), 7550 states have call successors, (7550), 1714 states have call predecessors, (7550), 1713 states have return successors, (10469), 7353 states have call predecessors, (10469), 7545 states have call successors, (10469) [2022-07-21 11:02:05,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29391 states to 29391 states and 44873 transitions. [2022-07-21 11:02:05,300 INFO L78 Accepts]: Start accepts. Automaton has 29391 states and 44873 transitions. Word has length 58 [2022-07-21 11:02:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:02:05,301 INFO L495 AbstractCegarLoop]: Abstraction has 29391 states and 44873 transitions. [2022-07-21 11:02:05,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-21 11:02:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 29391 states and 44873 transitions. [2022-07-21 11:02:05,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 11:02:05,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:02:05,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 11:02:05,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 11:02:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:02:05,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:02:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:02:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash -446965858, now seen corresponding path program 1 times [2022-07-21 11:02:05,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:02:05,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400754103] [2022-07-21 11:02:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:02:05,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:02:05,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:02:05,533 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:02:05,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 11:02:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:02:07,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:02:07,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:02:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-21 11:02:07,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:02:07,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:02:07,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400754103] [2022-07-21 11:02:07,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400754103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:02:07,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:02:07,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:02:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911857172] [2022-07-21 11:02:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:02:07,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:02:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:02:07,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:02:07,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:07,137 INFO L87 Difference]: Start difference. First operand 29391 states and 44873 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:02:08,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:02:08,697 INFO L93 Difference]: Finished difference Result 81979 states and 125161 transitions. [2022-07-21 11:02:08,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:02:08,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-07-21 11:02:08,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:02:09,185 INFO L225 Difference]: With dead ends: 81979 [2022-07-21 11:02:09,186 INFO L226 Difference]: Without dead ends: 52601 [2022-07-21 11:02:09,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:09,298 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 2090 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:02:09,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 6928 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:02:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52601 states. [2022-07-21 11:02:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52601 to 52518. [2022-07-21 11:02:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52518 states, 36007 states have (on average 1.3371566639820034) internal successors, (48147), 37018 states have internal predecessors, (48147), 13309 states have call successors, (13309), 3202 states have call predecessors, (13309), 3201 states have return successors, (18736), 12905 states have call predecessors, (18736), 13304 states have call successors, (18736) [2022-07-21 11:02:11,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52518 states to 52518 states and 80192 transitions. [2022-07-21 11:02:11,543 INFO L78 Accepts]: Start accepts. Automaton has 52518 states and 80192 transitions. Word has length 77 [2022-07-21 11:02:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:02:11,543 INFO L495 AbstractCegarLoop]: Abstraction has 52518 states and 80192 transitions. [2022-07-21 11:02:11,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 11:02:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 52518 states and 80192 transitions. [2022-07-21 11:02:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 11:02:11,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:02:11,551 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-21 11:02:11,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 11:02:11,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:02:11,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:02:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:02:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash 545616422, now seen corresponding path program 1 times [2022-07-21 11:02:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:02:11,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927456823] [2022-07-21 11:02:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:02:11,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:02:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:02:11,771 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:02:11,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 11:02:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:02:13,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:02:13,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:02:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-21 11:02:13,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:02:13,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:02:13,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927456823] [2022-07-21 11:02:13,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927456823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:02:13,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:02:13,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:02:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703330759] [2022-07-21 11:02:13,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:02:13,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:02:13,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:02:13,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:02:13,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:13,093 INFO L87 Difference]: Start difference. First operand 52518 states and 80192 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:02:16,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:02:16,163 INFO L93 Difference]: Finished difference Result 147749 states and 231618 transitions. [2022-07-21 11:02:16,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:02:16,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2022-07-21 11:02:16,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:02:16,711 INFO L225 Difference]: With dead ends: 147749 [2022-07-21 11:02:16,711 INFO L226 Difference]: Without dead ends: 95246 [2022-07-21 11:02:17,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:17,020 INFO L413 NwaCegarLoop]: 3283 mSDtfsCounter, 2316 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:02:17,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5818 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 11:02:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95246 states. [2022-07-21 11:02:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95246 to 94613. [2022-07-21 11:02:20,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94613 states, 64652 states have (on average 1.333013673204232) internal successors, (86182), 66629 states have internal predecessors, (86182), 23918 states have call successors, (23918), 6043 states have call predecessors, (23918), 6042 states have return successors, (40241), 22980 states have call predecessors, (40241), 23913 states have call successors, (40241) [2022-07-21 11:02:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94613 states to 94613 states and 150341 transitions. [2022-07-21 11:02:21,033 INFO L78 Accepts]: Start accepts. Automaton has 94613 states and 150341 transitions. Word has length 96 [2022-07-21 11:02:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:02:21,033 INFO L495 AbstractCegarLoop]: Abstraction has 94613 states and 150341 transitions. [2022-07-21 11:02:21,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 11:02:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 94613 states and 150341 transitions. [2022-07-21 11:02:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 11:02:21,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:02:21,038 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-21 11:02:21,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 11:02:21,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:02:21,259 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:02:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:02:21,260 INFO L85 PathProgramCache]: Analyzing trace with hash -649234652, now seen corresponding path program 1 times [2022-07-21 11:02:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:02:21,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248825632] [2022-07-21 11:02:21,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:02:21,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:02:21,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:02:21,263 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:02:21,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 11:02:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:02:22,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 11:02:22,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:02:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-21 11:02:22,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:02:22,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:02:22,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248825632] [2022-07-21 11:02:22,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248825632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:02:22,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:02:22,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 11:02:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894016276] [2022-07-21 11:02:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:02:22,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 11:02:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:02:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 11:02:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:22,872 INFO L87 Difference]: Start difference. First operand 94613 states and 150341 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 11:02:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:02:27,763 INFO L93 Difference]: Finished difference Result 230619 states and 366719 transitions. [2022-07-21 11:02:27,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 11:02:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2022-07-21 11:02:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:02:28,458 INFO L225 Difference]: With dead ends: 230619 [2022-07-21 11:02:28,458 INFO L226 Difference]: Without dead ends: 136030 [2022-07-21 11:02:29,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 11:02:29,026 INFO L413 NwaCegarLoop]: 4702 mSDtfsCounter, 2560 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2560 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:02:29,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2560 Valid, 6862 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 11:02:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136030 states. [2022-07-21 11:02:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136030 to 135907. [2022-07-21 11:02:34,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135907 states, 93100 states have (on average 1.3341783029001073) internal successors, (124212), 96035 states have internal predecessors, (124212), 33996 states have call successors, (33996), 8811 states have call predecessors, (33996), 8810 states have return successors, (57831), 32580 states have call predecessors, (57831), 33991 states have call successors, (57831) [2022-07-21 11:02:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135907 states to 135907 states and 216039 transitions. [2022-07-21 11:02:34,938 INFO L78 Accepts]: Start accepts. Automaton has 135907 states and 216039 transitions. Word has length 108 [2022-07-21 11:02:34,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:02:34,938 INFO L495 AbstractCegarLoop]: Abstraction has 135907 states and 216039 transitions. [2022-07-21 11:02:34,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-21 11:02:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand 135907 states and 216039 transitions. [2022-07-21 11:02:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 11:02:34,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:02:34,943 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:02:34,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 11:02:35,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 11:02:35,163 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:02:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:02:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 377986603, now seen corresponding path program 1 times [2022-07-21 11:02:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 11:02:35,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885001112] [2022-07-21 11:02:35,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:02:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 11:02:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 11:02:35,168 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 11:02:35,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 11:02:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:02:36,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:02:36,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:02:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 11:02:36,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:02:36,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 11:02:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885001112] [2022-07-21 11:02:36,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885001112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:02:36,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:02:36,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:02:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136212697] [2022-07-21 11:02:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:02:36,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:02:36,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 11:02:36,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:02:36,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:02:36,774 INFO L87 Difference]: Start difference. First operand 135907 states and 216039 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10)