./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.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 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:59:12,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:59:12,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:59:12,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:59:12,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:59:12,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:59:12,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:59:12,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:59:12,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:59:12,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:59:12,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:59:12,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:59:12,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:59:12,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:59:12,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:59:12,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:59:12,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:59:12,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:59:12,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:59:12,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:59:12,407 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:59:12,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:59:12,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:59:12,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:59:12,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:59:12,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:59:12,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:59:12,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:59:12,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:59:12,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:59:12,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:59:12,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:59:12,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:59:12,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:59:12,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:59:12,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:59:12,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:59:12,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:59:12,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:59:12,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:59:12,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:59:12,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:59:12,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:59:12,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:59:12,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:59:12,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:59:12,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:59:12,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:59:12,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:59:12,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:59:12,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:59:12,461 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:59:12,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:59:12,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:59:12,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:59:12,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:59:12,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:59:12,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:59:12,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:59:12,464 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:59:12,464 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:59:12,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:59:12,464 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-22 22:59:12,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:59:12,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:59:12,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:59:12,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:59:12,735 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:59:12,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-22 22:59:12,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f9fb1bff/d0f78ca541274373997b3938c6d7d540/FLAG0f3abe82e [2022-07-22 22:59:13,553 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:59:13,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-22 22:59:13,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f9fb1bff/d0f78ca541274373997b3938c6d7d540/FLAG0f3abe82e [2022-07-22 22:59:14,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f9fb1bff/d0f78ca541274373997b3938c6d7d540 [2022-07-22 22:59:14,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:59:14,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:59:14,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:59:14,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:59:14,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:59:14,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:59:14" (1/1) ... [2022-07-22 22:59:14,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33db1409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:14, skipping insertion in model container [2022-07-22 22:59:14,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:59:14" (1/1) ... [2022-07-22 22:59:14,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:59:14,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:59:15,801 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-22 22:59:15,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:59:16,026 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:59:16,194 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) [2022-07-22 22:59:16,203 INFO L158 Benchmark]: Toolchain (without parser) took 2138.38ms. Allocated memory was 104.9MB in the beginning and 148.9MB in the end (delta: 44.0MB). Free memory was 72.4MB in the beginning and 60.8MB in the end (delta: 11.6MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2022-07-22 22:59:16,204 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:59:16,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2135.14ms. Allocated memory was 104.9MB in the beginning and 148.9MB in the end (delta: 44.0MB). Free memory was 72.4MB in the beginning and 60.8MB in the end (delta: 11.6MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2022-07-22 22:59:16,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2135.14ms. Allocated memory was 104.9MB in the beginning and 148.9MB in the end (delta: 44.0MB). Free memory was 72.4MB in the beginning and 60.8MB in the end (delta: 11.6MB). Peak memory consumption was 91.0MB. 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.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 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:59:17,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:59:17,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:59:17,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:59:17,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:59:17,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:59:17,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:59:17,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:59:17,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:59:17,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:59:17,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:59:17,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:59:17,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:59:17,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:59:17,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:59:17,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:59:17,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:59:17,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:59:17,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:59:17,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:59:17,979 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:59:17,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:59:17,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:59:17,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:59:17,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:59:17,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:59:17,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:59:17,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:59:17,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:59:17,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:59:17,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:59:17,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:59:17,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:59:17,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:59:17,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:59:17,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:59:17,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:59:17,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:59:17,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:59:18,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:59:18,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:59:18,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:59:18,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 22:59:18,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:59:18,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:59:18,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:59:18,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:59:18,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:59:18,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:59:18,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:59:18,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:59:18,043 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:59:18,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:59:18,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:59:18,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:59:18,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:59:18,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:59:18,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 22:59:18,045 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 22:59:18,046 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 22:59:18,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:59:18,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:59:18,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:59:18,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:59:18,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:59:18,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:59:18,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:59:18,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:59:18,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:59:18,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:59:18,048 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 22:59:18,048 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 22:59:18,048 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:59:18,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:59:18,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:59:18,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 22:59:18,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-22 22:59:18,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:59:18,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:59:18,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:59:18,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:59:18,370 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:59:18,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-22 22:59:18,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b11a9b87/b965becef821476f9a2cd6f208035833/FLAG5c61c93cb [2022-07-22 22:59:19,327 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:59:19,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-22 22:59:19,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b11a9b87/b965becef821476f9a2cd6f208035833/FLAG5c61c93cb [2022-07-22 22:59:19,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b11a9b87/b965becef821476f9a2cd6f208035833 [2022-07-22 22:59:19,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:59:19,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:59:19,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:59:19,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:59:19,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:59:19,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:59:19" (1/1) ... [2022-07-22 22:59:19,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50eaf058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:19, skipping insertion in model container [2022-07-22 22:59:19,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:59:19" (1/1) ... [2022-07-22 22:59:19,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:59:19,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:59:21,818 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-22 22:59:21,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:59:22,006 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 22:59:22,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:59:22,560 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-22 22:59:22,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:59:22,604 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:59:23,115 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-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2022-07-22 22:59:23,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:59:23,308 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:59:23,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23 WrapperNode [2022-07-22 22:59:23,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:59:23,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:59:23,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:59:23,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:59:23,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:23,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:23,719 INFO L137 Inliner]: procedures = 199, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 15657 [2022-07-22 22:59:23,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:59:23,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:59:23,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:59:23,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:59:23,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:23,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:23,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:23,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:24,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:24,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:24,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:24,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:59:24,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:59:24,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:59:24,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:59:24,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (1/1) ... [2022-07-22 22:59:24,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:59:24,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:59:24,368 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) [2022-07-22 22:59:24,500 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 [2022-07-22 22:59:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2022-07-22 22:59:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2022-07-22 22:59:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 22:59:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-22 22:59:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-22 22:59:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-22 22:59:24,513 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-22 22:59:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 22:59:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 22:59:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 22:59:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-22 22:59:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-22 22:59:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-22 22:59:24,514 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-22 22:59:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-22 22:59:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-22 22:59:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-22 22:59:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-22 22:59:24,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 22:59:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 22:59:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-22 22:59:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-22 22:59:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-22 22:59:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-22 22:59:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-22 22:59:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-22 22:59:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-22 22:59:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-22 22:59:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-22 22:59:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-22 22:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-22 22:59:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-22 22:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-22 22:59:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-22 22:59:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-22 22:59:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-22 22:59:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:59:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-22 22:59:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-22 22:59:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-22 22:59:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-22 22:59:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-22 22:59:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-22 22:59:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-22 22:59:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-22 22:59:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-22 22:59:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-22 22:59:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 22:59:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-22 22:59:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 22:59:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:59:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:59:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-22 22:59:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-22 22:59:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-22 22:59:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 22:59:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 22:59:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-22 22:59:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-22 22:59:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-22 22:59:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-22 22:59:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-22 22:59:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-22 22:59:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-22 22:59:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-22 22:59:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-22 22:59:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-22 22:59:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-22 22:59:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-22 22:59:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2022-07-22 22:59:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2022-07-22 22:59:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-22 22:59:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-22 22:59:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-22 22:59:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-22 22:59:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-22 22:59:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-22 22:59:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 22:59:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 22:59:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-22 22:59:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-22 22:59:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-22 22:59:24,529 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-22 22:59:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-22 22:59:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-22 22:59:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 22:59:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 22:59:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 22:59:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-22 22:59:24,531 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-22 22:59:24,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-22 22:59:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-22 22:59:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 22:59:24,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 22:59:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:59:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:59:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-22 22:59:24,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-22 22:59:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-22 22:59:24,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-22 22:59:24,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 22:59:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 22:59:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-22 22:59:24,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-22 22:59:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-22 22:59:24,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-22 22:59:24,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-22 22:59:24,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-22 22:59:24,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-22 22:59:24,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-22 22:59:24,535 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-22 22:59:24,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-22 22:59:24,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 22:59:24,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2022-07-22 22:59:24,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2022-07-22 22:59:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-22 22:59:24,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-22 22:59:24,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:59:24,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:59:25,661 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:59:25,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:00:05,674 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:00:05,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:00:05,713 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 23:00:05,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:00:05 BoogieIcfgContainer [2022-07-22 23:00:05,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:00:05,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:00:05,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:00:05,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:00:05,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:59:19" (1/3) ... [2022-07-22 23:00:05,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:00:05, skipping insertion in model container [2022-07-22 23:00:05,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:59:23" (2/3) ... [2022-07-22 23:00:05,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:00:05, skipping insertion in model container [2022-07-22 23:00:05,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:00:05" (3/3) ... [2022-07-22 23:00:05,728 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-22 23:00:05,744 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:00:05,744 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:00:05,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:00:05,895 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@7af3d542, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a2cb133 [2022-07-22 23:00:05,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:00:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) [2022-07-22 23:00:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 23:00:05,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:05,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:05,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:05,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736919, now seen corresponding path program 1 times [2022-07-22 23:00:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:05,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781584183] [2022-07-22 23:00:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:05,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:05,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:05,952 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) [2022-07-22 23:00:05,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:00:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:13,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:13,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:13,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:13,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:13,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781584183] [2022-07-22 23:00:13,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781584183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:13,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:13,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498457953] [2022-07-22 23:00:13,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:13,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:13,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:13,504 INFO L87 Difference]: Start difference. First operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:14,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:14,336 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2022-07-22 23:00:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:14,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 23:00:14,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:14,419 INFO L225 Difference]: With dead ends: 10596 [2022-07-22 23:00:14,419 INFO L226 Difference]: Without dead ends: 5294 [2022-07-22 23:00:14,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:14,505 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8639 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8639 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:14,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8639 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 23:00:14,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-07-22 23:00:15,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2022-07-22 23:00:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 3970 states have (on average 1.5357682619647355) internal successors, (6097), 3981 states have internal predecessors, (6097), 1276 states have call successors, (1276), 48 states have call predecessors, (1276), 47 states have return successors, (1267), 1266 states have call predecessors, (1267), 1267 states have call successors, (1267) [2022-07-22 23:00:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2022-07-22 23:00:15,760 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2022-07-22 23:00:15,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:00:15,760 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2022-07-22 23:00:15,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:15,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2022-07-22 23:00:15,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 23:00:15,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:15,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:15,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:00:15,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:00:15,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:15,976 INFO L85 PathProgramCache]: Analyzing trace with hash -138225563, now seen corresponding path program 1 times [2022-07-22 23:00:15,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:15,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950168388] [2022-07-22 23:00:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:15,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:15,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:15,987 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) [2022-07-22 23:00:15,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:00:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:23,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:23,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:23,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:23,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:23,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950168388] [2022-07-22 23:00:23,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950168388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:23,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:23,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:23,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766090779] [2022-07-22 23:00:23,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:23,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:23,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:23,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:23,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:23,376 INFO L87 Difference]: Start difference. First operand 5294 states and 8640 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:24,078 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2022-07-22 23:00:24,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:24,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 23:00:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:24,134 INFO L225 Difference]: With dead ends: 10658 [2022-07-22 23:00:24,135 INFO L226 Difference]: Without dead ends: 5367 [2022-07-22 23:00:24,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:24,193 INFO L413 NwaCegarLoop]: 8640 mSDtfsCounter, 8370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9007 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:24,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8370 Valid, 9007 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:00:24,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2022-07-22 23:00:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2022-07-22 23:00:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 4032 states have (on average 1.5364583333333333) internal successors, (6195), 4041 states have internal predecessors, (6195), 1279 states have call successors, (1279), 54 states have call predecessors, (1279), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-22 23:00:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2022-07-22 23:00:25,181 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2022-07-22 23:00:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:00:25,181 INFO L495 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2022-07-22 23:00:25,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2022-07-22 23:00:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-22 23:00:25,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:25,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:25,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:00:25,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:00:25,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:25,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:25,402 INFO L85 PathProgramCache]: Analyzing trace with hash 7484506, now seen corresponding path program 1 times [2022-07-22 23:00:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:25,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801343679] [2022-07-22 23:00:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:25,409 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:25,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:25,410 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) [2022-07-22 23:00:25,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:00:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:32,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:32,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:32,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:32,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:32,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801343679] [2022-07-22 23:00:32,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801343679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:32,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:32,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678305806] [2022-07-22 23:00:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:32,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:32,298 INFO L87 Difference]: Start difference. First operand 5364 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:32,769 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2022-07-22 23:00:32,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:32,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-22 23:00:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:32,823 INFO L225 Difference]: With dead ends: 5366 [2022-07-22 23:00:32,824 INFO L226 Difference]: Without dead ends: 5363 [2022-07-22 23:00:32,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:32,835 INFO L413 NwaCegarLoop]: 8633 mSDtfsCounter, 8627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8627 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:32,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8627 Valid, 8633 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:00:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2022-07-22 23:00:33,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2022-07-22 23:00:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 4032 states have (on average 1.5362103174603174) internal successors, (6194), 4040 states have internal predecessors, (6194), 1278 states have call successors, (1278), 54 states have call predecessors, (1278), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-22 23:00:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2022-07-22 23:00:33,697 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2022-07-22 23:00:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:00:33,697 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2022-07-22 23:00:33,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2022-07-22 23:00:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 23:00:33,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:33,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:33,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:00:33,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:00:33,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash 229534216, now seen corresponding path program 1 times [2022-07-22 23:00:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:33,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860093919] [2022-07-22 23:00:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:33,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:33,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:33,924 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) [2022-07-22 23:00:33,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:00:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:41,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:41,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:41,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:41,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:41,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860093919] [2022-07-22 23:00:41,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860093919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:41,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:41,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:41,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094289516] [2022-07-22 23:00:41,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:41,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:41,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:41,300 INFO L87 Difference]: Start difference. First operand 5363 states and 8743 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:41,765 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2022-07-22 23:00:41,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:41,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-22 23:00:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:41,814 INFO L225 Difference]: With dead ends: 5365 [2022-07-22 23:00:41,814 INFO L226 Difference]: Without dead ends: 5362 [2022-07-22 23:00:41,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:41,826 INFO L413 NwaCegarLoop]: 8631 mSDtfsCounter, 8624 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8624 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:41,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8624 Valid, 8631 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:00:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-07-22 23:00:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2022-07-22 23:00:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 4032 states have (on average 1.5359623015873016) internal successors, (6193), 4039 states have internal predecessors, (6193), 1277 states have call successors, (1277), 54 states have call predecessors, (1277), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-22 23:00:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2022-07-22 23:00:42,763 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2022-07-22 23:00:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:00:42,763 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2022-07-22 23:00:42,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2022-07-22 23:00:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 23:00:42,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:42,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:42,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-22 23:00:42,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:00:42,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:42,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854499, now seen corresponding path program 1 times [2022-07-22 23:00:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:42,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079890808] [2022-07-22 23:00:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:42,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:42,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:42,995 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) [2022-07-22 23:00:42,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:00:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:49,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 4877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:49,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:49,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:49,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:49,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079890808] [2022-07-22 23:00:49,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079890808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:49,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:49,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:49,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093121959] [2022-07-22 23:00:49,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:49,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:49,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:49,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:49,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:49,987 INFO L87 Difference]: Start difference. First operand 5362 states and 8741 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:50,425 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2022-07-22 23:00:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-22 23:00:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:50,499 INFO L225 Difference]: With dead ends: 5364 [2022-07-22 23:00:50,499 INFO L226 Difference]: Without dead ends: 5361 [2022-07-22 23:00:50,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:50,509 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 8621 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8621 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:50,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8621 Valid, 8629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:00:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-07-22 23:00:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2022-07-22 23:00:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 4032 states have (on average 1.5357142857142858) internal successors, (6192), 4038 states have internal predecessors, (6192), 1276 states have call successors, (1276), 54 states have call predecessors, (1276), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2022-07-22 23:00:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2022-07-22 23:00:51,220 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2022-07-22 23:00:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:00:51,221 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2022-07-22 23:00:51,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:51,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2022-07-22 23:00:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 23:00:51,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:00:51,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:00:51,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:00:51,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:00:51,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:00:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:00:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675051, now seen corresponding path program 1 times [2022-07-22 23:00:51,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:00:51,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726991146] [2022-07-22 23:00:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:00:51,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:00:51,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:00:51,446 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) [2022-07-22 23:00:51,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:00:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:00:58,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:00:58,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:00:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:00:58,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:00:58,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:00:58,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726991146] [2022-07-22 23:00:58,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726991146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:00:58,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:00:58,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:00:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868559338] [2022-07-22 23:00:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:00:58,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:00:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:00:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:00:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:58,732 INFO L87 Difference]: Start difference. First operand 5361 states and 8739 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:00:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:00:59,508 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2022-07-22 23:00:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:00:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-22 23:00:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:00:59,603 INFO L225 Difference]: With dead ends: 16061 [2022-07-22 23:00:59,603 INFO L226 Difference]: Without dead ends: 10697 [2022-07-22 23:00:59,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:00:59,655 INFO L413 NwaCegarLoop]: 10012 mSDtfsCounter, 8649 mSDsluCounter, 8651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:00:59,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8649 Valid, 18663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 23:00:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-07-22 23:01:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2022-07-22 23:01:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10688 states, 8041 states have (on average 1.5368735231936326) internal successors, (12358), 8052 states have internal predecessors, (12358), 2544 states have call successors, (2544), 105 states have call predecessors, (2544), 102 states have return successors, (2617), 2534 states have call predecessors, (2617), 2537 states have call successors, (2617) [2022-07-22 23:01:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2022-07-22 23:01:01,274 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2022-07-22 23:01:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:01:01,274 INFO L495 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2022-07-22 23:01:01,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 23:01:01,275 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2022-07-22 23:01:01,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 23:01:01,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:01:01,286 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:01:01,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-22 23:01:01,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:01:01,500 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:01:01,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:01:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1570930916, now seen corresponding path program 1 times [2022-07-22 23:01:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:01:01,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333130237] [2022-07-22 23:01:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:01:01,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:01:01,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:01:01,506 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) [2022-07-22 23:01:01,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:01:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:01:09,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:01:09,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:01:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 23:01:09,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:01:09,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:01:09,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333130237] [2022-07-22 23:01:09,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333130237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:01:09,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:01:09,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:01:09,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221847712] [2022-07-22 23:01:09,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:01:09,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:01:09,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:01:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:01:09,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:01:09,221 INFO L87 Difference]: Start difference. First operand 10688 states and 17519 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-22 23:01:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:01:10,069 INFO L93 Difference]: Finished difference Result 21480 states and 35292 transitions. [2022-07-22 23:01:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:01:10,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2022-07-22 23:01:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:01:10,159 INFO L225 Difference]: With dead ends: 21480 [2022-07-22 23:01:10,160 INFO L226 Difference]: Without dead ends: 10795 [2022-07-22 23:01:10,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:01:10,268 INFO L413 NwaCegarLoop]: 8625 mSDtfsCounter, 139 mSDsluCounter, 17199 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 25824 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:01:10,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 25824 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:01:10,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-07-22 23:01:11,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 10793. [2022-07-22 23:01:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10793 states, 8129 states have (on average 1.5368434001722229) internal successors, (12493), 8140 states have internal predecessors, (12493), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-22 23:01:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 17684 transitions. [2022-07-22 23:01:11,851 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 17684 transitions. Word has length 69 [2022-07-22 23:01:11,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:01:11,851 INFO L495 AbstractCegarLoop]: Abstraction has 10793 states and 17684 transitions. [2022-07-22 23:01:11,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-22 23:01:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 17684 transitions. [2022-07-22 23:01:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 23:01:11,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:01:11,863 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:01:12,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 23:01:12,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:01:12,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:01:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:01:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1925660316, now seen corresponding path program 1 times [2022-07-22 23:01:12,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:01:12,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433853193] [2022-07-22 23:01:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:01:12,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:01:12,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:01:12,072 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) [2022-07-22 23:01:12,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:01:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:01:21,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 5393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 23:01:21,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:01:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 23:01:21,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:01:21,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:01:21,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433853193] [2022-07-22 23:01:21,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1433853193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:01:21,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:01:21,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:01:21,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009734565] [2022-07-22 23:01:21,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:01:21,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:01:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:01:21,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:01:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:01:21,549 INFO L87 Difference]: Start difference. First operand 10793 states and 17684 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:01:23,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:01:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:01:24,758 INFO L93 Difference]: Finished difference Result 21587 states and 37177 transitions. [2022-07-22 23:01:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:01:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-07-22 23:01:24,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:01:24,855 INFO L225 Difference]: With dead ends: 21587 [2022-07-22 23:01:24,856 INFO L226 Difference]: Without dead ends: 10797 [2022-07-22 23:01:25,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:01:25,185 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 0 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17254 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:01:25,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-22 23:01:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2022-07-22 23:01:26,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10797. [2022-07-22 23:01:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10797 states, 8133 states have (on average 1.5365793680068855) internal successors, (12497), 8144 states have internal predecessors, (12497), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-22 23:01:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 17688 transitions. [2022-07-22 23:01:26,654 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 17688 transitions. Word has length 78 [2022-07-22 23:01:26,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:01:26,655 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 17688 transitions. [2022-07-22 23:01:26,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:01:26,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 17688 transitions. [2022-07-22 23:01:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 23:01:26,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:01:26,661 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:01:26,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:01:26,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:01:26,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:01:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:01:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1890292754, now seen corresponding path program 1 times [2022-07-22 23:01:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:01:26,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036463147] [2022-07-22 23:01:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:01:26,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:01:26,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:01:26,885 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) [2022-07-22 23:01:26,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:01:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:01:37,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 5478 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 23:01:37,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:01:37,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 23:01:37,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:01:37,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:01:37,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036463147] [2022-07-22 23:01:37,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036463147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:01:37,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:01:37,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:01:37,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895213588] [2022-07-22 23:01:37,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:01:37,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:01:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:01:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:01:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:01:37,504 INFO L87 Difference]: Start difference. First operand 10797 states and 17688 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:01:39,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:01:41,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:01:42,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:01:42,112 INFO L93 Difference]: Finished difference Result 21595 states and 37185 transitions. [2022-07-22 23:01:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:01:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2022-07-22 23:01:42,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:01:42,226 INFO L225 Difference]: With dead ends: 21595 [2022-07-22 23:01:42,226 INFO L226 Difference]: Without dead ends: 10801 [2022-07-22 23:01:42,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:01:42,483 INFO L413 NwaCegarLoop]: 8626 mSDtfsCounter, 39 mSDsluCounter, 8623 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17249 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:01:42,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17249 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2022-07-22 23:01:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-07-22 23:01:43,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 10801. [2022-07-22 23:01:43,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10801 states, 8137 states have (on average 1.5363155954282905) internal successors, (12501), 8148 states have internal predecessors, (12501), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 104 states have return successors, (2632), 2549 states have call predecessors, (2632), 2552 states have call successors, (2632) [2022-07-22 23:01:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10801 states to 10801 states and 17692 transitions. [2022-07-22 23:01:43,805 INFO L78 Accepts]: Start accepts. Automaton has 10801 states and 17692 transitions. Word has length 79 [2022-07-22 23:01:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:01:43,805 INFO L495 AbstractCegarLoop]: Abstraction has 10801 states and 17692 transitions. [2022-07-22 23:01:43,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:01:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 10801 states and 17692 transitions. [2022-07-22 23:01:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 23:01:43,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:01:43,811 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:01:44,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:01:44,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:01:44,031 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:01:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:01:44,032 INFO L85 PathProgramCache]: Analyzing trace with hash -636827019, now seen corresponding path program 1 times [2022-07-22 23:01:44,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:01:44,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281664644] [2022-07-22 23:01:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:01:44,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:01:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:01:44,044 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) [2022-07-22 23:01:44,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 23:01:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:01:54,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 5491 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:01:54,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:01:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 23:01:54,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:01:54,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:01:54,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281664644] [2022-07-22 23:01:54,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281664644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:01:54,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:01:54,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:01:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384325261] [2022-07-22 23:01:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:01:54,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:01:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:01:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:01:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:01:54,874 INFO L87 Difference]: Start difference. First operand 10801 states and 17692 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:01:56,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:02:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:02:01,763 INFO L93 Difference]: Finished difference Result 21641 states and 37277 transitions. [2022-07-22 23:02:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:02:01,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-22 23:02:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:02:01,851 INFO L225 Difference]: With dead ends: 21641 [2022-07-22 23:02:01,851 INFO L226 Difference]: Without dead ends: 10843 [2022-07-22 23:02:01,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:02:01,926 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 11 mSDsluCounter, 33763 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42404 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:02:01,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42404 Invalid, 807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-22 23:02:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-07-22 23:02:04,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 10817. [2022-07-22 23:02:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 8150 states have (on average 1.5354601226993865) internal successors, (12514), 8160 states have internal predecessors, (12514), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 107 states have return successors, (4182), 2553 states have call predecessors, (4182), 2552 states have call successors, (4182) [2022-07-22 23:02:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 19255 transitions. [2022-07-22 23:02:04,716 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 19255 transitions. Word has length 80 [2022-07-22 23:02:04,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:02:04,717 INFO L495 AbstractCegarLoop]: Abstraction has 10817 states and 19255 transitions. [2022-07-22 23:02:04,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:02:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 19255 transitions. [2022-07-22 23:02:04,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 23:02:04,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:02:04,723 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:02:04,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-22 23:02:04,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:02:04,942 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:02:04,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:02:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1163497930, now seen corresponding path program 1 times [2022-07-22 23:02:04,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:02:04,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706050450] [2022-07-22 23:02:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:02:04,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:02:04,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:02:04,951 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) [2022-07-22 23:02:04,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-22 23:02:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:02:14,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 5494 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:02:14,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:02:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 23:02:14,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:02:14,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:02:14,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706050450] [2022-07-22 23:02:14,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706050450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:02:14,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:02:14,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:02:14,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296333957] [2022-07-22 23:02:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:02:14,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:02:14,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:02:14,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:02:14,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:02:14,723 INFO L87 Difference]: Start difference. First operand 10817 states and 19255 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:02:16,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:02:21,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:02:21,233 INFO L93 Difference]: Finished difference Result 21665 states and 38848 transitions. [2022-07-22 23:02:21,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:02:21,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-22 23:02:21,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:02:21,342 INFO L225 Difference]: With dead ends: 21665 [2022-07-22 23:02:21,342 INFO L226 Difference]: Without dead ends: 10851 [2022-07-22 23:02:21,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:02:21,465 INFO L413 NwaCegarLoop]: 8632 mSDtfsCounter, 11 mSDsluCounter, 33731 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42363 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:02:21,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42363 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-22 23:02:21,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2022-07-22 23:02:23,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10821. [2022-07-22 23:02:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10821 states, 8154 states have (on average 1.5351974491047338) internal successors, (12518), 8160 states have internal predecessors, (12518), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 107 states have return successors, (4182), 2557 states have call predecessors, (4182), 2552 states have call successors, (4182) [2022-07-22 23:02:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 19259 transitions. [2022-07-22 23:02:24,029 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 19259 transitions. Word has length 80 [2022-07-22 23:02:24,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:02:24,029 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 19259 transitions. [2022-07-22 23:02:24,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:02:24,029 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 19259 transitions. [2022-07-22 23:02:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 23:02:24,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:02:24,044 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:02:24,257 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forcibly destroying the process [2022-07-22 23:02:24,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-22 23:02:24,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:02:24,274 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:02:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:02:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1403609912, now seen corresponding path program 1 times [2022-07-22 23:02:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:02:24,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303081681] [2022-07-22 23:02:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:02:24,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:02:24,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:02:24,281 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) [2022-07-22 23:02:24,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-22 23:02:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:02:34,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 5486 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:02:34,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:02:34,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 23:02:34,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:02:34,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:02:34,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303081681] [2022-07-22 23:02:34,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303081681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:02:34,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:02:34,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:02:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566159257] [2022-07-22 23:02:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:02:34,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:02:34,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:02:34,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:02:34,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:02:34,537 INFO L87 Difference]: Start difference. First operand 10821 states and 19259 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-22 23:02:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:02:34,938 INFO L93 Difference]: Finished difference Result 11081 states and 19803 transitions. [2022-07-22 23:02:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:02:34,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2022-07-22 23:02:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:02:35,023 INFO L225 Difference]: With dead ends: 11081 [2022-07-22 23:02:35,023 INFO L226 Difference]: Without dead ends: 11074 [2022-07-22 23:02:35,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:02:35,044 INFO L413 NwaCegarLoop]: 8659 mSDtfsCounter, 146 mSDsluCounter, 25910 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 34569 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:02:35,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 34569 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:02:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-07-22 23:02:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 10827. [2022-07-22 23:02:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10827 states, 8159 states have (on average 1.534869469297708) internal successors, (12523), 8164 states have internal predecessors, (12523), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 108 states have return successors, (4206), 2559 states have call predecessors, (4206), 2552 states have call successors, (4206) [2022-07-22 23:02:37,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10827 states to 10827 states and 19288 transitions. [2022-07-22 23:02:37,485 INFO L78 Accepts]: Start accepts. Automaton has 10827 states and 19288 transitions. Word has length 82 [2022-07-22 23:02:37,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:02:37,485 INFO L495 AbstractCegarLoop]: Abstraction has 10827 states and 19288 transitions. [2022-07-22 23:02:37,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-22 23:02:37,486 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states and 19288 transitions. [2022-07-22 23:02:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-22 23:02:37,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:02:37,493 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 23:02:37,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-22 23:02:37,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:02:37,711 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:02:37,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:02:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash -768326530, now seen corresponding path program 1 times [2022-07-22 23:02:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:02:37,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296330644] [2022-07-22 23:02:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:02:37,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:02:37,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:02:37,720 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) [2022-07-22 23:02:37,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-22 23:02:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:02:45,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 5470 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 23:02:45,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:02:46,095 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-22 23:02:46,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 42 [2022-07-22 23:02:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 23:02:46,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:02:46,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:02:46,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296330644] [2022-07-22 23:02:46,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296330644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:02:46,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:02:46,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:02:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383915921] [2022-07-22 23:02:46,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:02:46,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:02:46,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:02:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:02:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:02:46,138 INFO L87 Difference]: Start difference. First operand 10827 states and 19288 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-22 23:02:48,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:02:51,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:02:53,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:02:55,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:03:09,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []