./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 f4b24e32 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-?-f4b24e3 [2022-07-14 00:07:27,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:07:28,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:07:28,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:07:28,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:07:28,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:07:28,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:07:28,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:07:28,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:07:28,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:07:28,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:07:28,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:07:28,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:07:28,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:07:28,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:07:28,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:07:28,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:07:28,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:07:28,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:07:28,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:07:28,048 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:07:28,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:07:28,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:07:28,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:07:28,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:07:28,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:07:28,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:07:28,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:07:28,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:07:28,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:07:28,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:07:28,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:07:28,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:07:28,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:07:28,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:07:28,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:07:28,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:07:28,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:07:28,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:07:28,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:07:28,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:07:28,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:07:28,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:07:28,094 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:07:28,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:07:28,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:07:28,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:07:28,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:07:28,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:07:28,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:07:28,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:07:28,097 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:07:28,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:07:28,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:07:28,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:07:28,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:07:28,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:07:28,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:07:28,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:07:28,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:07:28,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:07:28,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:07:28,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:07:28,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:07:28,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:07:28,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:07:28,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:07:28,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:07:28,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:07:28,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:07:28,111 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:07:28,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:07:28,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:07:28,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-14 00:07:28,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:07:28,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:07:28,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:07:28,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:07:28,377 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:07:28,378 INFO L432 ainManager$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 [2022-07-14 00:07:28,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef2ba7ac6/79c9a49cf19442ebba20911fa1d6f29e/FLAG824cbf633 [2022-07-14 00:07:29,156 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:07:29,157 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 [2022-07-14 00:07:29,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef2ba7ac6/79c9a49cf19442ebba20911fa1d6f29e/FLAG824cbf633 [2022-07-14 00:07:29,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef2ba7ac6/79c9a49cf19442ebba20911fa1d6f29e [2022-07-14 00:07:29,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:07:29,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:07:29,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:07:29,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:07:29,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:07:29,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:07:29" (1/1) ... [2022-07-14 00:07:29,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b073e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:29, skipping insertion in model container [2022-07-14 00:07:29,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:07:29" (1/1) ... [2022-07-14 00:07:29,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:07:29,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:07:30,122 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] [2022-07-14 00:07:31,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:07:31,545 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:07:31,652 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] [2022-07-14 00:07:31,776 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) [2022-07-14 00:07:31,787 INFO L158 Benchmark]: Toolchain (without parser) took 2544.75ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 67.7MB in the beginning and 78.3MB in the end (delta: -10.6MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-07-14 00:07:31,788 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:07:31,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2542.83ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 67.6MB in the beginning and 78.3MB in the end (delta: -10.7MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-07-14 00:07:31,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2542.83ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 67.6MB in the beginning and 78.3MB in the end (delta: -10.7MB). Peak memory consumption was 61.9MB. 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-?-f4b24e3 [2022-07-14 00:07:33,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:07:33,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:07:33,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:07:33,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:07:33,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:07:33,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:07:33,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:07:33,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:07:33,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:07:33,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:07:33,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:07:33,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:07:33,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:07:33,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:07:33,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:07:33,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:07:33,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:07:33,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:07:33,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:07:33,667 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:07:33,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:07:33,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:07:33,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:07:33,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:07:33,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:07:33,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:07:33,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:07:33,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:07:33,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:07:33,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:07:33,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:07:33,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:07:33,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:07:33,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:07:33,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:07:33,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:07:33,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:07:33,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:07:33,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:07:33,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:07:33,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:07:33,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:07:33,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:07:33,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:07:33,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:07:33,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:07:33,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:07:33,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:07:33,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:07:33,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:07:33,729 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:07:33,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:07:33,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:07:33,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:07:33,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:07:33,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:07:33,731 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:07:33,731 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:07:33,731 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:07:33,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:07:33,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:07:33,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:07:33,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:07:33,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:07:33,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:07:33,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:07:33,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:07:33,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:07:33,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:07:33,733 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:07:33,734 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:07:33,734 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:07:33,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:07:33,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:07:33,735 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:07:33,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-14 00:07:34,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:07:34,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:07:34,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:07:34,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:07:34,086 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:07:34,087 INFO L432 ainManager$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 [2022-07-14 00:07:34,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a19a88/349826263b6b415094a103774644945e/FLAG2b0f4072d [2022-07-14 00:07:34,936 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:07:34,937 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 [2022-07-14 00:07:34,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a19a88/349826263b6b415094a103774644945e/FLAG2b0f4072d [2022-07-14 00:07:35,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/836a19a88/349826263b6b415094a103774644945e [2022-07-14 00:07:35,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:07:35,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:07:35,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:07:35,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:07:35,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:07:35,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:07:35" (1/1) ... [2022-07-14 00:07:35,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfc1d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:35, skipping insertion in model container [2022-07-14 00:07:35,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:07:35" (1/1) ... [2022-07-14 00:07:35,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:07:35,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:07:36,089 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] [2022-07-14 00:07:37,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:07:37,310 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:07:37,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:07:37,473 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] [2022-07-14 00:07:37,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:07:37,797 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:07:37,916 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] [2022-07-14 00:07:38,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:07:38,282 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:07:38,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38 WrapperNode [2022-07-14 00:07:38,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:07:38,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:07:38,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:07:38,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:07:38,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,560 INFO L137 Inliner]: procedures = 330, calls = 2397, calls flagged for inlining = 150, calls inlined = 146, statements flattened = 5383 [2022-07-14 00:07:38,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:07:38,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:07:38,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:07:38,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:07:38,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:07:38,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:07:38,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:07:38,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:07:38,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (1/1) ... [2022-07-14 00:07:38,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:07:38,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:07:38,857 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) [2022-07-14 00:07:38,878 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 [2022-07-14 00:07:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 00:07:38,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 00:07:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2022-07-14 00:07:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2022-07-14 00:07:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ind_if_updown [2022-07-14 00:07:38,893 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ind_if_updown [2022-07-14 00:07:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:07:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_rx_complete [2022-07-14 00:07:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_rx_complete [2022-07-14 00:07:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure get_csr [2022-07-14 00:07:38,894 INFO L138 BoogieDeclarations]: Found implementation of procedure get_csr [2022-07-14 00:07:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:07:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:07:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_19 [2022-07-14 00:07:38,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_19 [2022-07-14 00:07:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:07:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:07:38,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:07:38,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:07:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:07:38,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:07:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:07:38,896 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:07:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure array_le32_to_cpu [2022-07-14 00:07:38,896 INFO L138 BoogieDeclarations]: Found implementation of procedure array_le32_to_cpu [2022-07-14 00:07:38,896 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 00:07:38,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 00:07:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:07:38,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:07:38,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:07:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:07:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 00:07:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv [2022-07-14 00:07:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv [2022-07-14 00:07:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_struct [2022-07-14 00:07:38,898 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_struct [2022-07-14 00:07:38,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:07:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:07:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wibro_send [2022-07-14 00:07:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wibro_send [2022-07-14 00:07:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-14 00:07:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-14 00:07:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:07:38,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:07:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:07:38,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:07:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_mac_addr [2022-07-14 00:07:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_mac_addr [2022-07-14 00:07:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:07:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:07:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_send_tx [2022-07-14 00:07:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_send_tx [2022-07-14 00:07:38,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___1 [2022-07-14 00:07:38,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___1 [2022-07-14 00:07:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_config [2022-07-14 00:07:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_config [2022-07-14 00:07:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_rcv_complete [2022-07-14 00:07:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_rcv_complete [2022-07-14 00:07:38,903 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:07:38,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:07:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2022-07-14 00:07:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2022-07-14 00:07:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_data [2022-07-14 00:07:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_data [2022-07-14 00:07:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-14 00:07:38,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-14 00:07:38,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-07-14 00:07:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-07-14 00:07:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-14 00:07:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-14 00:07:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:07:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:07:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:07:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-14 00:07:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-14 00:07:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:07:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-14 00:07:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-14 00:07:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure download_image [2022-07-14 00:07:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure download_image [2022-07-14 00:07:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:07:38,908 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:07:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:07:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:07:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:07:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:07:38,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:07:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-14 00:07:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-14 00:07:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:07:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-14 00:07:38,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:07:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-14 00:07:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-14 00:07:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:07:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 00:07:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 00:07:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:07:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:07:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:07:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:07:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 00:07:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 00:07:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry [2022-07-14 00:07:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry [2022-07-14 00:07:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:07:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:07:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:07:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:07:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv_cb [2022-07-14 00:07:38,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv_cb [2022-07-14 00:07:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_rcv [2022-07-14 00:07:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_rcv [2022-07-14 00:07:38,917 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:07:38,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:07:38,922 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 00:07:38,922 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 00:07:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 00:07:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 00:07:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tx_struct [2022-07-14 00:07:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tx_struct [2022-07-14 00:07:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:07:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:07:38,923 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 00:07:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 00:07:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_resume [2022-07-14 00:07:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_resume [2022-07-14 00:07:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-07-14 00:07:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-07-14 00:07:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-07-14 00:07:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:07:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:07:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure extract_qos_list [2022-07-14 00:07:38,925 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_qos_list [2022-07-14 00:07:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-14 00:07:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-14 00:07:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-14 00:07:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-14 00:07:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-14 00:07:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-14 00:07:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 00:07:38,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 00:07:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:07:38,927 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:07:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_recv_qos_hci_packet [2022-07-14 00:07:38,927 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_recv_qos_hci_packet [2022-07-14 00:07:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:07:38,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:07:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:07:38,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:07:38,927 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-14 00:07:38,928 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-14 00:07:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:07:38,928 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:07:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send_complete [2022-07-14 00:07:38,928 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send_complete [2022-07-14 00:07:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:07:38,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:07:38,928 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-14 00:07:38,929 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 00:07:38,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:07:38,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:07:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:07:38,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:07:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:07:38,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:07:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_disconnect [2022-07-14 00:07:38,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_disconnect [2022-07-14 00:07:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_netif_rx [2022-07-14 00:07:38,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_netif_rx [2022-07-14 00:07:38,930 INFO L130 BoogieDeclarations]: Found specification of procedure send_qos_list [2022-07-14 00:07:38,931 INFO L138 BoogieDeclarations]: Found implementation of procedure send_qos_list [2022-07-14 00:07:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:07:38,931 INFO L130 BoogieDeclarations]: Found specification of procedure kdelete [2022-07-14 00:07:38,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kdelete [2022-07-14 00:07:38,932 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_transmit_pkt [2022-07-14 00:07:38,932 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_transmit_pkt [2022-07-14 00:07:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 00:07:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 00:07:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:07:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:07:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:07:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure em_download_image [2022-07-14 00:07:38,933 INFO L138 BoogieDeclarations]: Found implementation of procedure em_download_image [2022-07-14 00:07:38,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:07:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_29 [2022-07-14 00:07:38,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_29 [2022-07-14 00:07:38,996 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rx_struct [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rx_struct [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_qos_release_list [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_qos_release_list [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_struct [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_struct [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure free_event_entry [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure free_event_entry [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 00:07:38,997 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_send [2022-07-14 00:07:38,997 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_send [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure do_pm_control [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pm_control [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure __gdm_usb_send_complete [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __gdm_usb_send_complete [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_qos_entry [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_qos_entry [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure release_usb [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure release_usb [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ioctl [2022-07-14 00:07:38,998 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ioctl [2022-07-14 00:07:38,998 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_receive [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_receive [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_stats [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_stats [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry_list [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry_list [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure em_wait_ack [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure em_wait_ack [2022-07-14 00:07:38,999 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:07:38,999 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:07:39,844 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:07:39,848 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:07:40,427 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:07:51,361 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___1FINAL: assume true; [2022-07-14 00:08:07,253 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:08:07,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:08:07,271 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:08:07,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:08:07 BoogieIcfgContainer [2022-07-14 00:08:07,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:08:07,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:08:07,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:08:07,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:08:07,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:07:35" (1/3) ... [2022-07-14 00:08:07,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316c9a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:08:07, skipping insertion in model container [2022-07-14 00:08:07,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:07:38" (2/3) ... [2022-07-14 00:08:07,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316c9a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:08:07, skipping insertion in model container [2022-07-14 00:08:07,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:08:07" (3/3) ... [2022-07-14 00:08:07,281 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-14 00:08:07,293 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:08:07,293 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:08:07,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:08:07,380 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@1f7dcb1e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d2d6a59 [2022-07-14 00:08:07,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:08:07,391 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) [2022-07-14 00:08:07,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-14 00:08:07,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:07,405 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] [2022-07-14 00:08:07,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:07,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:07,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1607665857, now seen corresponding path program 1 times [2022-07-14 00:08:07,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:07,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283007883] [2022-07-14 00:08:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:07,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:07,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:07,435 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) [2022-07-14 00:08:07,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:08:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:08,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:08:08,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:08:09,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:09,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:09,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283007883] [2022-07-14 00:08:09,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283007883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:09,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:09,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:08:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286226247] [2022-07-14 00:08:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:09,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:08:09,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:09,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:08:09,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:08:09,033 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) [2022-07-14 00:08:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:09,289 INFO L93 Difference]: Finished difference Result 3764 states and 5509 transitions. [2022-07-14 00:08:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:08:09,292 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 [2022-07-14 00:08:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:09,315 INFO L225 Difference]: With dead ends: 3764 [2022-07-14 00:08:09,316 INFO L226 Difference]: Without dead ends: 1866 [2022-07-14 00:08:09,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:08:09,336 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:09,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8055 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:08:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-14 00:08:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2022-07-14 00:08:09,480 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) [2022-07-14 00:08:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2663 transitions. [2022-07-14 00:08:09,496 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2663 transitions. Word has length 33 [2022-07-14 00:08:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:09,497 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2663 transitions. [2022-07-14 00:08:09,498 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) [2022-07-14 00:08:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2663 transitions. [2022-07-14 00:08:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 00:08:09,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:09,504 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] [2022-07-14 00:08:09,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:09,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:09,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:09,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:09,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1970633324, now seen corresponding path program 1 times [2022-07-14 00:08:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:09,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871977364] [2022-07-14 00:08:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:09,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:09,725 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) [2022-07-14 00:08:09,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:08:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:11,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:08:11,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:08:11,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:08:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 00:08:11,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:11,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871977364] [2022-07-14 00:08:11,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871977364] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:08:11,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:08:11,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-14 00:08:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203235650] [2022-07-14 00:08:11,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:08:11,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:08:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:08:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:08:11,309 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) [2022-07-14 00:08:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:11,709 INFO L93 Difference]: Finished difference Result 3737 states and 5335 transitions. [2022-07-14 00:08:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:08:11,710 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 [2022-07-14 00:08:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:11,723 INFO L225 Difference]: With dead ends: 3737 [2022-07-14 00:08:11,723 INFO L226 Difference]: Without dead ends: 1875 [2022-07-14 00:08:11,732 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 [2022-07-14 00:08:11,733 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 10 mSDsluCounter, 7976 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:11,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10636 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:08:11,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-07-14 00:08:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-07-14 00:08:11,794 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) [2022-07-14 00:08:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2674 transitions. [2022-07-14 00:08:11,807 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2674 transitions. Word has length 34 [2022-07-14 00:08:11,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:11,807 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2674 transitions. [2022-07-14 00:08:11,808 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) [2022-07-14 00:08:11,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2674 transitions. [2022-07-14 00:08:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 00:08:11,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:11,809 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] [2022-07-14 00:08:11,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:12,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:12,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash 271918465, now seen corresponding path program 2 times [2022-07-14 00:08:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:12,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357384132] [2022-07-14 00:08:12,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:08:12,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:12,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:12,029 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) [2022-07-14 00:08:12,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:08:13,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:08:13,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:08:13,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:13,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 00:08:13,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:13,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:13,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357384132] [2022-07-14 00:08:13,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357384132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:13,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:13,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:08:13,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886785098] [2022-07-14 00:08:13,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:13,294 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) [2022-07-14 00:08:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:13,649 INFO L93 Difference]: Finished difference Result 5567 states and 7947 transitions. [2022-07-14 00:08:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:13,650 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 [2022-07-14 00:08:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:13,673 INFO L225 Difference]: With dead ends: 5567 [2022-07-14 00:08:13,673 INFO L226 Difference]: Without dead ends: 3707 [2022-07-14 00:08:13,681 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 [2022-07-14 00:08:13,682 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 [2022-07-14 00:08:13,682 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] [2022-07-14 00:08:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-14 00:08:13,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3704. [2022-07-14 00:08:13,812 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) [2022-07-14 00:08:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5287 transitions. [2022-07-14 00:08:13,841 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5287 transitions. Word has length 37 [2022-07-14 00:08:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:13,841 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5287 transitions. [2022-07-14 00:08:13,843 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) [2022-07-14 00:08:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5287 transitions. [2022-07-14 00:08:13,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 00:08:13,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:13,847 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] [2022-07-14 00:08:13,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:14,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:14,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash -240920598, now seen corresponding path program 1 times [2022-07-14 00:08:14,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:14,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217932113] [2022-07-14 00:08:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:14,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:14,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:14,068 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) [2022-07-14 00:08:14,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:08:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:15,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:15,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:15,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:15,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:15,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217932113] [2022-07-14 00:08:15,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217932113] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:15,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:15,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:08:15,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932732529] [2022-07-14 00:08:15,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:15,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:15,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:15,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:15,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:15,405 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) [2022-07-14 00:08:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:15,653 INFO L93 Difference]: Finished difference Result 3730 states and 5319 transitions. [2022-07-14 00:08:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:15,654 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 [2022-07-14 00:08:15,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:15,677 INFO L225 Difference]: With dead ends: 3730 [2022-07-14 00:08:15,677 INFO L226 Difference]: Without dead ends: 3717 [2022-07-14 00:08:15,680 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 [2022-07-14 00:08:15,682 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:08:15,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2693 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:08:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-14 00:08:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3704. [2022-07-14 00:08:15,812 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) [2022-07-14 00:08:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5286 transitions. [2022-07-14 00:08:15,829 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5286 transitions. Word has length 54 [2022-07-14 00:08:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:15,831 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5286 transitions. [2022-07-14 00:08:15,831 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) [2022-07-14 00:08:15,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5286 transitions. [2022-07-14 00:08:15,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 00:08:15,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:15,834 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] [2022-07-14 00:08:15,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:16,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:16,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash -183662296, now seen corresponding path program 1 times [2022-07-14 00:08:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:16,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746135696] [2022-07-14 00:08:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:16,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:16,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:16,051 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) [2022-07-14 00:08:16,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:08:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:17,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:08:17,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:17,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:17,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:17,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746135696] [2022-07-14 00:08:17,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746135696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:17,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:17,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:08:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244246197] [2022-07-14 00:08:17,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:17,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:17,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:17,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:17,771 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) [2022-07-14 00:08:18,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:18,171 INFO L93 Difference]: Finished difference Result 11081 states and 16301 transitions. [2022-07-14 00:08:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:18,172 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 [2022-07-14 00:08:18,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:18,225 INFO L225 Difference]: With dead ends: 11081 [2022-07-14 00:08:18,226 INFO L226 Difference]: Without dead ends: 7392 [2022-07-14 00:08:18,252 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 [2022-07-14 00:08:18,253 INFO L413 NwaCegarLoop]: 3203 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, 5900 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 [2022-07-14 00:08:18,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 5900 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:08:18,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2022-07-14 00:08:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7381. [2022-07-14 00:08:18,559 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) [2022-07-14 00:08:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 10778 transitions. [2022-07-14 00:08:18,604 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 10778 transitions. Word has length 54 [2022-07-14 00:08:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:18,605 INFO L495 AbstractCegarLoop]: Abstraction has 7381 states and 10778 transitions. [2022-07-14 00:08:18,605 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) [2022-07-14 00:08:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 10778 transitions. [2022-07-14 00:08:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 00:08:18,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:18,607 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] [2022-07-14 00:08:18,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:18,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:18,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:18,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1399472197, now seen corresponding path program 1 times [2022-07-14 00:08:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:18,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396002718] [2022-07-14 00:08:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:18,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:18,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:18,835 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) [2022-07-14 00:08:18,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:08:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:20,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:08:20,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:20,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:20,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:20,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:20,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396002718] [2022-07-14 00:08:20,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396002718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:20,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:20,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:08:20,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385647496] [2022-07-14 00:08:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:20,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:20,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:20,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:20,533 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) [2022-07-14 00:08:21,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:21,232 INFO L93 Difference]: Finished difference Result 22104 states and 33467 transitions. [2022-07-14 00:08:21,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:21,234 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 [2022-07-14 00:08:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:21,357 INFO L225 Difference]: With dead ends: 22104 [2022-07-14 00:08:21,358 INFO L226 Difference]: Without dead ends: 14738 [2022-07-14 00:08:21,410 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 [2022-07-14 00:08:21,412 INFO L413 NwaCegarLoop]: 4489 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, 7131 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 [2022-07-14 00:08:21,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 7131 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:08:21,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14738 states. [2022-07-14 00:08:22,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14738 to 14728. [2022-07-14 00:08:22,084 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) [2022-07-14 00:08:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14728 states to 14728 states and 21902 transitions. [2022-07-14 00:08:22,182 INFO L78 Accepts]: Start accepts. Automaton has 14728 states and 21902 transitions. Word has length 55 [2022-07-14 00:08:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:22,183 INFO L495 AbstractCegarLoop]: Abstraction has 14728 states and 21902 transitions. [2022-07-14 00:08:22,183 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) [2022-07-14 00:08:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 14728 states and 21902 transitions. [2022-07-14 00:08:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 00:08:22,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:22,185 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] [2022-07-14 00:08:22,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:22,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:22,386 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:22,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash -434868597, now seen corresponding path program 1 times [2022-07-14 00:08:22,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:22,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552476580] [2022-07-14 00:08:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:22,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:22,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:22,450 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) [2022-07-14 00:08:22,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:08:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:23,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:23,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:23,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:23,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552476580] [2022-07-14 00:08:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552476580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:23,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:23,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:08:23,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937301398] [2022-07-14 00:08:23,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:23,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:23,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:23,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:23,939 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) [2022-07-14 00:08:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:24,302 INFO L93 Difference]: Finished difference Result 14736 states and 21909 transitions. [2022-07-14 00:08:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:24,303 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 [2022-07-14 00:08:24,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:24,382 INFO L225 Difference]: With dead ends: 14736 [2022-07-14 00:08:24,383 INFO L226 Difference]: Without dead ends: 14733 [2022-07-14 00:08:24,395 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 [2022-07-14 00:08:24,396 INFO L413 NwaCegarLoop]: 4481 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, 7122 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 [2022-07-14 00:08:24,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 7122 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:08:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2022-07-14 00:08:24,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14729. [2022-07-14 00:08:24,975 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) [2022-07-14 00:08:25,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14729 states to 14729 states and 21903 transitions. [2022-07-14 00:08:25,057 INFO L78 Accepts]: Start accepts. Automaton has 14729 states and 21903 transitions. Word has length 56 [2022-07-14 00:08:25,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:25,057 INFO L495 AbstractCegarLoop]: Abstraction has 14729 states and 21903 transitions. [2022-07-14 00:08:25,057 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) [2022-07-14 00:08:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14729 states and 21903 transitions. [2022-07-14 00:08:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 00:08:25,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:25,060 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] [2022-07-14 00:08:25,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:25,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:25,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:25,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash -596923202, now seen corresponding path program 1 times [2022-07-14 00:08:25,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:25,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841555707] [2022-07-14 00:08:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:25,283 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) [2022-07-14 00:08:25,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:08:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:26,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:26,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:26,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:26,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:26,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841555707] [2022-07-14 00:08:26,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841555707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:26,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:26,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:08:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479653719] [2022-07-14 00:08:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:26,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:26,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:26,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:26,800 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) [2022-07-14 00:08:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:27,713 INFO L93 Difference]: Finished difference Result 44130 states and 67948 transitions. [2022-07-14 00:08:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:27,714 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 [2022-07-14 00:08:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:27,905 INFO L225 Difference]: With dead ends: 44130 [2022-07-14 00:08:27,905 INFO L226 Difference]: Without dead ends: 29416 [2022-07-14 00:08:28,003 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 [2022-07-14 00:08:28,004 INFO L413 NwaCegarLoop]: 3856 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, 6549 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 [2022-07-14 00:08:28,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 6549 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:08:28,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29416 states. [2022-07-14 00:08:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29416 to 29403. [2022-07-14 00:08:29,262 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) [2022-07-14 00:08:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29403 states to 29403 states and 44891 transitions. [2022-07-14 00:08:29,678 INFO L78 Accepts]: Start accepts. Automaton has 29403 states and 44891 transitions. Word has length 57 [2022-07-14 00:08:29,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:29,680 INFO L495 AbstractCegarLoop]: Abstraction has 29403 states and 44891 transitions. [2022-07-14 00:08:29,680 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) [2022-07-14 00:08:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 29403 states and 44891 transitions. [2022-07-14 00:08:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 00:08:29,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:29,683 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] [2022-07-14 00:08:29,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:29,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:29,897 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:29,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1325643794, now seen corresponding path program 1 times [2022-07-14 00:08:29,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:29,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592122679] [2022-07-14 00:08:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:29,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:29,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:29,903 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) [2022-07-14 00:08:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:08:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:31,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:31,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 00:08:31,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:31,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592122679] [2022-07-14 00:08:31,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592122679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:31,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:31,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:08:31,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513899443] [2022-07-14 00:08:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:31,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:31,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:31,473 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) [2022-07-14 00:08:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:32,060 INFO L93 Difference]: Finished difference Result 29405 states and 44892 transitions. [2022-07-14 00:08:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:32,060 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 [2022-07-14 00:08:32,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:32,214 INFO L225 Difference]: With dead ends: 29405 [2022-07-14 00:08:32,215 INFO L226 Difference]: Without dead ends: 29391 [2022-07-14 00:08:32,240 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 [2022-07-14 00:08:32,241 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 [2022-07-14 00:08:32,241 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] [2022-07-14 00:08:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29391 states. [2022-07-14 00:08:33,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29391 to 29391. [2022-07-14 00:08:33,523 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) [2022-07-14 00:08:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29391 states to 29391 states and 44873 transitions. [2022-07-14 00:08:33,889 INFO L78 Accepts]: Start accepts. Automaton has 29391 states and 44873 transitions. Word has length 58 [2022-07-14 00:08:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:33,891 INFO L495 AbstractCegarLoop]: Abstraction has 29391 states and 44873 transitions. [2022-07-14 00:08:33,891 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) [2022-07-14 00:08:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 29391 states and 44873 transitions. [2022-07-14 00:08:33,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-14 00:08:33,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:33,895 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] [2022-07-14 00:08:33,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:34,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:34,107 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash -446965858, now seen corresponding path program 1 times [2022-07-14 00:08:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:34,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492771983] [2022-07-14 00:08:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:34,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:34,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:34,308 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) [2022-07-14 00:08:34,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:08:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:35,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:35,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 00:08:35,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:35,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:35,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492771983] [2022-07-14 00:08:35,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492771983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:35,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:35,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:08:35,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604971] [2022-07-14 00:08:35,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:35,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:35,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:35,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:35,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:35,687 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) [2022-07-14 00:08:37,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:37,348 INFO L93 Difference]: Finished difference Result 81979 states and 125161 transitions. [2022-07-14 00:08:37,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:37,349 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 [2022-07-14 00:08:37,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:37,651 INFO L225 Difference]: With dead ends: 81979 [2022-07-14 00:08:37,651 INFO L226 Difference]: Without dead ends: 52601 [2022-07-14 00:08:37,779 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 [2022-07-14 00:08:37,780 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 [2022-07-14 00:08:37,781 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] [2022-07-14 00:08:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52601 states. [2022-07-14 00:08:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52601 to 52518. [2022-07-14 00:08:39,809 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) [2022-07-14 00:08:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52518 states to 52518 states and 80192 transitions. [2022-07-14 00:08:40,069 INFO L78 Accepts]: Start accepts. Automaton has 52518 states and 80192 transitions. Word has length 77 [2022-07-14 00:08:40,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:40,070 INFO L495 AbstractCegarLoop]: Abstraction has 52518 states and 80192 transitions. [2022-07-14 00:08:40,070 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) [2022-07-14 00:08:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand 52518 states and 80192 transitions. [2022-07-14 00:08:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-14 00:08:40,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:40,076 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] [2022-07-14 00:08:40,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:40,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:40,291 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:40,292 INFO L85 PathProgramCache]: Analyzing trace with hash 545616422, now seen corresponding path program 1 times [2022-07-14 00:08:40,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:40,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444466005] [2022-07-14 00:08:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:40,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:40,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:40,297 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) [2022-07-14 00:08:40,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:08:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:41,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:41,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-14 00:08:41,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:41,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:41,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444466005] [2022-07-14 00:08:41,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444466005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:41,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:41,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:08:41,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72459086] [2022-07-14 00:08:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:41,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:41,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:41,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:41,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:41,650 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) [2022-07-14 00:08:44,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:44,895 INFO L93 Difference]: Finished difference Result 147749 states and 231618 transitions. [2022-07-14 00:08:44,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:44,896 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 [2022-07-14 00:08:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:45,541 INFO L225 Difference]: With dead ends: 147749 [2022-07-14 00:08:45,541 INFO L226 Difference]: Without dead ends: 95246 [2022-07-14 00:08:45,735 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 [2022-07-14 00:08:45,735 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 [2022-07-14 00:08:45,736 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] [2022-07-14 00:08:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95246 states. [2022-07-14 00:08:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95246 to 94613. [2022-07-14 00:08:49,484 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) [2022-07-14 00:08:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94613 states to 94613 states and 150341 transitions. [2022-07-14 00:08:50,034 INFO L78 Accepts]: Start accepts. Automaton has 94613 states and 150341 transitions. Word has length 96 [2022-07-14 00:08:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:08:50,035 INFO L495 AbstractCegarLoop]: Abstraction has 94613 states and 150341 transitions. [2022-07-14 00:08:50,035 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) [2022-07-14 00:08:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 94613 states and 150341 transitions. [2022-07-14 00:08:50,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 00:08:50,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:08:50,039 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] [2022-07-14 00:08:50,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:08:50,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:08:50,240 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:08:50,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:08:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash -649234652, now seen corresponding path program 1 times [2022-07-14 00:08:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:08:50,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200181854] [2022-07-14 00:08:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:08:50,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:08:50,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:08:50,243 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) [2022-07-14 00:08:50,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:08:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:08:51,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:08:51,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:08:51,621 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 00:08:51,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:08:51,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:08:51,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200181854] [2022-07-14 00:08:51,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200181854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:08:51,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:08:51,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:08:51,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631061151] [2022-07-14 00:08:51,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:08:51,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:08:51,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:08:51,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:08:51,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:08:51,624 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) [2022-07-14 00:08:56,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:08:56,672 INFO L93 Difference]: Finished difference Result 230619 states and 366719 transitions. [2022-07-14 00:08:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:08:56,673 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 [2022-07-14 00:08:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:08:57,614 INFO L225 Difference]: With dead ends: 230619 [2022-07-14 00:08:57,614 INFO L226 Difference]: Without dead ends: 136030 [2022-07-14 00:08:58,216 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 [2022-07-14 00:08:58,217 INFO L413 NwaCegarLoop]: 4702 mSDtfsCounter, 2560 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-14 00:08:58,217 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] [2022-07-14 00:08:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136030 states. [2022-07-14 00:09:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136030 to 135907. [2022-07-14 00:09:03,104 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) [2022-07-14 00:09:03,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135907 states to 135907 states and 216039 transitions. [2022-07-14 00:09:03,924 INFO L78 Accepts]: Start accepts. Automaton has 135907 states and 216039 transitions. Word has length 108 [2022-07-14 00:09:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:03,925 INFO L495 AbstractCegarLoop]: Abstraction has 135907 states and 216039 transitions. [2022-07-14 00:09:03,925 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) [2022-07-14 00:09:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 135907 states and 216039 transitions. [2022-07-14 00:09:03,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-14 00:09:03,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:03,930 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] [2022-07-14 00:09:03,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:09:04,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:09:04,143 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:04,144 INFO L85 PathProgramCache]: Analyzing trace with hash 377986603, now seen corresponding path program 1 times [2022-07-14 00:09:04,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:09:04,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790422585] [2022-07-14 00:09:04,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:04,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:09:04,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:09:04,148 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) [2022-07-14 00:09:04,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:09:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:06,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:09:06,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:09:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:09:06,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:09:06,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:09:06,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790422585] [2022-07-14 00:09:06,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790422585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:06,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:06,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:09:06,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165558607] [2022-07-14 00:09:06,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:06,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:09:06,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:09:06,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:09:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:09:06,136 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)