./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 6c24879c 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-?-6c24879 [2022-07-12 11:42:07,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:42:07,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:42:07,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:42:07,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:42:07,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:42:07,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:42:07,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:42:07,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:42:07,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:42:07,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:42:07,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:42:07,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:42:07,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:42:07,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:42:07,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:42:07,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:42:07,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:42:07,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:42:07,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:42:07,561 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:42:07,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:42:07,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:42:07,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:42:07,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:42:07,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:42:07,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:42:07,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:42:07,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:42:07,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:42:07,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:42:07,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:42:07,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:42:07,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:42:07,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:42:07,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:42:07,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:42:07,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:42:07,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:42:07,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:42:07,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:42:07,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:42:07,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:42:07,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:42:07,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:42:07,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:42:07,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:42:07,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:42:07,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:42:07,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:42:07,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:42:07,600 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:42:07,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:42:07,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:42:07,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:42:07,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:42:07,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:42:07,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:07,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:42:07,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:42:07,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:42:07,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:42:07,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:42:07,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-12 11:42:07,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:42:07,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:42:07,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:42:07,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:42:07,833 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:42:07,834 INFO L432 ainManager$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 [2022-07-12 11:42:07,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53631f4e/007d30f79a104102bfc1061d096dabb2/FLAG93a2a4183 [2022-07-12 11:42:08,540 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:42:08,540 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 [2022-07-12 11:42:08,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53631f4e/007d30f79a104102bfc1061d096dabb2/FLAG93a2a4183 [2022-07-12 11:42:08,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e53631f4e/007d30f79a104102bfc1061d096dabb2 [2022-07-12 11:42:08,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:42:08,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:42:08,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:08,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:42:08,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:42:08,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:08" (1/1) ... [2022-07-12 11:42:08,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6443d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:08, skipping insertion in model container [2022-07-12 11:42:08,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:08" (1/1) ... [2022-07-12 11:42:08,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:42:09,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:42:10,358 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] [2022-07-12 11:42:10,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:10,484 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:42:10,642 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) [2022-07-12 11:42:10,647 INFO L158 Benchmark]: Toolchain (without parser) took 1731.69ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 91.0MB in the beginning and 105.6MB in the end (delta: -14.6MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2022-07-12 11:42:10,648 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:42:10,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1730.17ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 91.0MB in the beginning and 105.6MB in the end (delta: -14.6MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2022-07-12 11:42:10,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1730.17ms. Allocated memory was 123.7MB in the beginning and 199.2MB in the end (delta: 75.5MB). Free memory was 91.0MB in the beginning and 105.6MB in the end (delta: -14.6MB). Peak memory consumption was 93.2MB. 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-?-6c24879 [2022-07-12 11:42:12,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:42:12,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:42:12,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:42:12,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:42:12,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:42:12,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:42:12,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:42:12,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:42:12,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:42:12,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:42:12,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:42:12,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:42:12,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:42:12,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:42:12,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:42:12,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:42:12,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:42:12,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:42:12,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:42:12,154 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:42:12,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:42:12,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:42:12,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:42:12,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:42:12,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:42:12,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:42:12,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:42:12,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:42:12,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:42:12,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:42:12,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:42:12,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:42:12,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:42:12,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:42:12,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:42:12,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:42:12,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:42:12,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:42:12,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:42:12,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:42:12,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:42:12,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 11:42:12,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:42:12,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:42:12,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:42:12,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:42:12,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:42:12,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:42:12,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:42:12,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:42:12,197 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:42:12,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 11:42:12,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 11:42:12,199 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 11:42:12,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:42:12,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:42:12,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:42:12,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:42:12,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:42:12,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:42:12,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:12,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:42:12,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:42:12,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:42:12,200 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 11:42:12,201 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 11:42:12,201 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:42:12,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:42:12,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:42:12,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 11:42:12,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-12 11:42:12,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:42:12,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:42:12,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:42:12,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:42:12,463 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:42:12,463 INFO L432 ainManager$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 [2022-07-12 11:42:12,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288093264/c4e45e31a7dd4d3ab0850bd9d0cc6d51/FLAG7d1892ad9 [2022-07-12 11:42:13,165 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:42:13,165 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 [2022-07-12 11:42:13,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288093264/c4e45e31a7dd4d3ab0850bd9d0cc6d51/FLAG7d1892ad9 [2022-07-12 11:42:13,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/288093264/c4e45e31a7dd4d3ab0850bd9d0cc6d51 [2022-07-12 11:42:13,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:42:13,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:42:13,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:13,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:42:13,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:42:13,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:13" (1/1) ... [2022-07-12 11:42:13,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8a7b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:13, skipping insertion in model container [2022-07-12 11:42:13,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:13" (1/1) ... [2022-07-12 11:42:13,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:42:13,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:42:14,716 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] [2022-07-12 11:42:14,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:14,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 11:42:14,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:42:15,222 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] [2022-07-12 11:42:15,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:15,252 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:42:15,622 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] [2022-07-12 11:42:15,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:15,729 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:42:15,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15 WrapperNode [2022-07-12 11:42:15,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:15,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:42:15,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:42:15,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:42:15,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:15,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,153 INFO L137 Inliner]: procedures = 199, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 15657 [2022-07-12 11:42:16,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:42:16,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:42:16,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:42:16,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:42:16,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:42:16,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:42:16,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:42:16,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:42:16,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (1/1) ... [2022-07-12 11:42:16,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:16,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:42:16,500 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) [2022-07-12 11:42:16,515 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 [2022-07-12 11:42:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2022-07-12 11:42:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2022-07-12 11:42:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 11:42:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-12 11:42:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 11:42:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-12 11:42:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-12 11:42:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-12 11:42:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-12 11:42:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-12 11:42:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-12 11:42:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 11:42:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 11:42:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 11:42:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 11:42:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-12 11:42:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-12 11:42:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-12 11:42:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-12 11:42:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-12 11:42:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-12 11:42:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-12 11:42:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-12 11:42:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 11:42:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 11:42:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-12 11:42:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-12 11:42:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:42:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-12 11:42:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-12 11:42:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-12 11:42:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-12 11:42:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:42:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-12 11:42:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-12 11:42:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-12 11:42:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-12 11:42:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-12 11:42:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-12 11:42:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-12 11:42:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-12 11:42:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-12 11:42:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-12 11:42:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 11:42:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 11:42:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-12 11:42:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 11:42:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-12 11:42:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-12 11:42:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-12 11:42:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-12 11:42:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-12 11:42:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-12 11:42:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-12 11:42:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-12 11:42:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-12 11:42:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-12 11:42:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-12 11:42:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-12 11:42:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2022-07-12 11:42:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2022-07-12 11:42:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-12 11:42:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-12 11:42:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-12 11:42:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-12 11:42:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 11:42:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 11:42:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 11:42:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 11:42:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-12 11:42:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-12 11:42:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-12 11:42:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-12 11:42:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-12 11:42:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-12 11:42:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 11:42:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 11:42:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 11:42:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-12 11:42:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-12 11:42:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 11:42:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 11:42:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 11:42:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 11:42:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:42:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:42:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-12 11:42:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-12 11:42:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-12 11:42:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-12 11:42:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 11:42:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 11:42:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-12 11:42:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-12 11:42:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:42:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:42:17,525 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:42:17,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:42:56,236 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:42:56,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:42:56,271 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 11:42:56,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:42:56 BoogieIcfgContainer [2022-07-12 11:42:56,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:42:56,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:42:56,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:42:56,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:42:56,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:42:13" (1/3) ... [2022-07-12 11:42:56,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dddde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:42:56, skipping insertion in model container [2022-07-12 11:42:56,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:15" (2/3) ... [2022-07-12 11:42:56,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dddde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:42:56, skipping insertion in model container [2022-07-12 11:42:56,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:42:56" (3/3) ... [2022-07-12 11:42:56,284 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-12 11:42:56,296 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:42:56,297 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:42:56,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:42:56,400 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@694edba1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27b87f5d [2022-07-12 11:42:56,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:42:56,415 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) [2022-07-12 11:42:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-12 11:42:56,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:56,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:56,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736919, now seen corresponding path program 1 times [2022-07-12 11:42:56,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:42:56,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931865297] [2022-07-12 11:42:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:56,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:42:56,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:42:56,444 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) [2022-07-12 11:42:56,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 11:43:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:03,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:03,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:03,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:03,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:03,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931865297] [2022-07-12 11:43:03,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931865297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:03,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:03,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57183584] [2022-07-12 11:43:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:03,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:03,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:03,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:03,392 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) [2022-07-12 11:43:04,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:04,086 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2022-07-12 11:43:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:04,088 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 [2022-07-12 11:43:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:04,131 INFO L225 Difference]: With dead ends: 10596 [2022-07-12 11:43:04,132 INFO L226 Difference]: Without dead ends: 5294 [2022-07-12 11:43:04,184 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 [2022-07-12 11:43:04,186 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 [2022-07-12 11:43:04,187 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] [2022-07-12 11:43:04,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-07-12 11:43:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2022-07-12 11:43:04,847 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) [2022-07-12 11:43:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2022-07-12 11:43:04,895 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2022-07-12 11:43:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:04,895 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2022-07-12 11:43:04,895 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) [2022-07-12 11:43:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2022-07-12 11:43:04,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-12 11:43:04,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:04,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:43:05,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:05,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:05,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:05,099 INFO L85 PathProgramCache]: Analyzing trace with hash -138225563, now seen corresponding path program 1 times [2022-07-12 11:43:05,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:05,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324797749] [2022-07-12 11:43:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:05,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:05,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:05,107 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) [2022-07-12 11:43:05,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 11:43:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:11,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:11,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:11,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:11,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:11,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324797749] [2022-07-12 11:43:11,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324797749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:11,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:11,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165322765] [2022-07-12 11:43:11,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:11,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:11,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:11,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:11,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:11,869 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) [2022-07-12 11:43:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:12,434 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2022-07-12 11:43:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:12,434 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 [2022-07-12 11:43:12,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:12,474 INFO L225 Difference]: With dead ends: 10658 [2022-07-12 11:43:12,475 INFO L226 Difference]: Without dead ends: 5367 [2022-07-12 11:43:12,515 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 [2022-07-12 11:43:12,516 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 [2022-07-12 11:43:12,518 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] [2022-07-12 11:43:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2022-07-12 11:43:13,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2022-07-12 11:43:13,235 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) [2022-07-12 11:43:13,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2022-07-12 11:43:13,263 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2022-07-12 11:43:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:13,263 INFO L495 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2022-07-12 11:43:13,263 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) [2022-07-12 11:43:13,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2022-07-12 11:43:13,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-12 11:43:13,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:13,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:43:13,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:13,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:13,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 7484506, now seen corresponding path program 1 times [2022-07-12 11:43:13,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:13,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003341467] [2022-07-12 11:43:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:13,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:13,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:13,493 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) [2022-07-12 11:43:13,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 11:43:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:20,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:20,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:20,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:20,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:20,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003341467] [2022-07-12 11:43:20,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003341467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:20,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:20,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839400885] [2022-07-12 11:43:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:20,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:20,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:20,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:20,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:20,321 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) [2022-07-12 11:43:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:20,730 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2022-07-12 11:43:20,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:20,731 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 [2022-07-12 11:43:20,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:20,771 INFO L225 Difference]: With dead ends: 5366 [2022-07-12 11:43:20,771 INFO L226 Difference]: Without dead ends: 5363 [2022-07-12 11:43:20,778 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 [2022-07-12 11:43:20,781 INFO L413 NwaCegarLoop]: 8633 mSDtfsCounter, 8627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 11:43:20,782 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] [2022-07-12 11:43:20,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2022-07-12 11:43:21,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2022-07-12 11:43:21,443 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) [2022-07-12 11:43:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2022-07-12 11:43:21,468 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2022-07-12 11:43:21,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:21,468 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2022-07-12 11:43:21,468 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) [2022-07-12 11:43:21,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2022-07-12 11:43:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-12 11:43:21,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:21,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:43:21,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:21,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:21,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:21,697 INFO L85 PathProgramCache]: Analyzing trace with hash 229534216, now seen corresponding path program 1 times [2022-07-12 11:43:21,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:21,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711653469] [2022-07-12 11:43:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:21,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:21,704 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) [2022-07-12 11:43:21,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 11:43:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:28,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:28,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:28,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:28,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:28,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:28,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711653469] [2022-07-12 11:43:28,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711653469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:28,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:28,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:28,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049688943] [2022-07-12 11:43:28,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:28,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:28,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:28,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:28,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:28,597 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) [2022-07-12 11:43:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:29,002 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2022-07-12 11:43:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:29,002 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 [2022-07-12 11:43:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:29,037 INFO L225 Difference]: With dead ends: 5365 [2022-07-12 11:43:29,038 INFO L226 Difference]: Without dead ends: 5362 [2022-07-12 11:43:29,045 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 [2022-07-12 11:43:29,046 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 [2022-07-12 11:43:29,048 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] [2022-07-12 11:43:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-07-12 11:43:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2022-07-12 11:43:29,671 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) [2022-07-12 11:43:29,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2022-07-12 11:43:29,698 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2022-07-12 11:43:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:29,699 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2022-07-12 11:43:29,699 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) [2022-07-12 11:43:29,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2022-07-12 11:43:29,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-12 11:43:29,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:29,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:43:29,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:29,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:29,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854499, now seen corresponding path program 1 times [2022-07-12 11:43:29,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:29,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186692769] [2022-07-12 11:43:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:29,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:29,923 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) [2022-07-12 11:43:29,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 11:43:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:36,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 4877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:36,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:36,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:36,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:36,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186692769] [2022-07-12 11:43:36,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186692769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:36,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:36,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33390310] [2022-07-12 11:43:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:36,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:36,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:36,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:36,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:36,703 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) [2022-07-12 11:43:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:37,089 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2022-07-12 11:43:37,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:37,090 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 [2022-07-12 11:43:37,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:37,120 INFO L225 Difference]: With dead ends: 5364 [2022-07-12 11:43:37,121 INFO L226 Difference]: Without dead ends: 5361 [2022-07-12 11:43:37,128 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 [2022-07-12 11:43:37,129 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 8621 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 11:43:37,129 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] [2022-07-12 11:43:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-07-12 11:43:37,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2022-07-12 11:43:37,718 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) [2022-07-12 11:43:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2022-07-12 11:43:37,743 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2022-07-12 11:43:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:37,744 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2022-07-12 11:43:37,744 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) [2022-07-12 11:43:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2022-07-12 11:43:37,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-12 11:43:37,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:37,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:43:37,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:37,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:37,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:37,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:37,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675051, now seen corresponding path program 1 times [2022-07-12 11:43:37,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:37,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325396578] [2022-07-12 11:43:37,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:37,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:37,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:37,978 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) [2022-07-12 11:43:37,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 11:43:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:44,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 11:43:44,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:44,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:43:44,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:44,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:44,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325396578] [2022-07-12 11:43:44,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325396578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:44,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:44,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:43:44,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417945843] [2022-07-12 11:43:44,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:44,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:43:44,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:44,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:43:44,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:43:44,901 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) [2022-07-12 11:43:45,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:45,465 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2022-07-12 11:43:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:43:45,468 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 [2022-07-12 11:43:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:45,535 INFO L225 Difference]: With dead ends: 16061 [2022-07-12 11:43:45,536 INFO L226 Difference]: Without dead ends: 10697 [2022-07-12 11:43:45,577 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 [2022-07-12 11:43:45,578 INFO L413 NwaCegarLoop]: 10010 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, 18661 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:43:45,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8649 Valid, 18661 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 11:43:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-07-12 11:43:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2022-07-12 11:43:46,763 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) [2022-07-12 11:43:46,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2022-07-12 11:43:46,824 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2022-07-12 11:43:46,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:46,824 INFO L495 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2022-07-12 11:43:46,825 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) [2022-07-12 11:43:46,825 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2022-07-12 11:43:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 11:43:46,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:46,836 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] [2022-07-12 11:43:46,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:47,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:47,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1570930916, now seen corresponding path program 1 times [2022-07-12 11:43:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:47,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59515346] [2022-07-12 11:43:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:47,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:47,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:47,065 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) [2022-07-12 11:43:47,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 11:43:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:43:54,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:43:54,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:43:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 11:43:54,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:43:54,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:43:54,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59515346] [2022-07-12 11:43:54,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59515346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:43:54,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:43:54,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:43:54,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396387314] [2022-07-12 11:43:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:43:54,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:43:54,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:43:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:43:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:43:54,788 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) [2022-07-12 11:43:55,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:43:55,499 INFO L93 Difference]: Finished difference Result 21480 states and 35292 transitions. [2022-07-12 11:43:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:43:55,500 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 [2022-07-12 11:43:55,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:43:55,566 INFO L225 Difference]: With dead ends: 21480 [2022-07-12 11:43:55,566 INFO L226 Difference]: Without dead ends: 10795 [2022-07-12 11:43:55,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:43:55,646 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 [2022-07-12 11:43:55,646 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] [2022-07-12 11:43:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-07-12 11:43:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 10793. [2022-07-12 11:43:56,969 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) [2022-07-12 11:43:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 17684 transitions. [2022-07-12 11:43:57,046 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 17684 transitions. Word has length 69 [2022-07-12 11:43:57,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:43:57,046 INFO L495 AbstractCegarLoop]: Abstraction has 10793 states and 17684 transitions. [2022-07-12 11:43:57,046 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) [2022-07-12 11:43:57,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 17684 transitions. [2022-07-12 11:43:57,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 11:43:57,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:43:57,056 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] [2022-07-12 11:43:57,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 11:43:57,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:43:57,256 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:43:57,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:43:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1925660316, now seen corresponding path program 1 times [2022-07-12 11:43:57,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:43:57,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744653145] [2022-07-12 11:43:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:43:57,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:43:57,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:43:57,267 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) [2022-07-12 11:43:57,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 11:44:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:44:06,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 5393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 11:44:06,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:44:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:44:06,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:44:06,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:44:06,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744653145] [2022-07-12 11:44:06,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744653145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:44:06,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:44:06,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:44:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495901519] [2022-07-12 11:44:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:44:06,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:44:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:44:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:44:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:44:06,809 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) [2022-07-12 11:44:08,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:44:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:44:09,469 INFO L93 Difference]: Finished difference Result 21587 states and 37177 transitions. [2022-07-12 11:44:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:44:09,470 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 [2022-07-12 11:44:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:44:09,532 INFO L225 Difference]: With dead ends: 21587 [2022-07-12 11:44:09,532 INFO L226 Difference]: Without dead ends: 10797 [2022-07-12 11:44:09,622 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 [2022-07-12 11:44:09,623 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 0 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:44:09,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 11:44:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2022-07-12 11:44:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10797. [2022-07-12 11:44:10,816 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) [2022-07-12 11:44:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 17688 transitions. [2022-07-12 11:44:10,880 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 17688 transitions. Word has length 78 [2022-07-12 11:44:10,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:44:10,881 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 17688 transitions. [2022-07-12 11:44:10,881 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) [2022-07-12 11:44:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 17688 transitions. [2022-07-12 11:44:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 11:44:10,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:44:10,887 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] [2022-07-12 11:44:11,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 11:44:11,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:44:11,107 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:44:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:44:11,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1890292754, now seen corresponding path program 1 times [2022-07-12 11:44:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:44:11,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904494135] [2022-07-12 11:44:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:44:11,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:44:11,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:44:11,114 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) [2022-07-12 11:44:11,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 11:44:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:44:20,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 5498 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 11:44:20,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:44:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 11:44:20,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:44:20,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:44:20,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904494135] [2022-07-12 11:44:20,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904494135] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:44:20,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:44:20,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:44:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137130596] [2022-07-12 11:44:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:44:20,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:44:20,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:44:20,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:44:20,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:44:20,911 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) [2022-07-12 11:44:22,934 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 [] [2022-07-12 11:44:24,970 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 [] [2022-07-12 11:44:25,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:44:25,498 INFO L93 Difference]: Finished difference Result 21595 states and 37185 transitions. [2022-07-12 11:44:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:44:25,499 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 [2022-07-12 11:44:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:44:25,555 INFO L225 Difference]: With dead ends: 21595 [2022-07-12 11:44:25,556 INFO L226 Difference]: Without dead ends: 10801 [2022-07-12 11:44:25,624 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 [2022-07-12 11:44:25,626 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 [2022-07-12 11:44:25,626 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] [2022-07-12 11:44:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-07-12 11:44:26,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 10801. [2022-07-12 11:44:26,786 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) [2022-07-12 11:44:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10801 states to 10801 states and 17692 transitions. [2022-07-12 11:44:26,848 INFO L78 Accepts]: Start accepts. Automaton has 10801 states and 17692 transitions. Word has length 79 [2022-07-12 11:44:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:44:26,848 INFO L495 AbstractCegarLoop]: Abstraction has 10801 states and 17692 transitions. [2022-07-12 11:44:26,848 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) [2022-07-12 11:44:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10801 states and 17692 transitions. [2022-07-12 11:44:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 11:44:26,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:44:26,853 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] [2022-07-12 11:44:27,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 11:44:27,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:44:27,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:44:27,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:44:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash -636827019, now seen corresponding path program 1 times [2022-07-12 11:44:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:44:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825661367] [2022-07-12 11:44:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:44:27,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:44:27,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:44:27,073 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) [2022-07-12 11:44:27,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 11:44:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:44:36,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 5511 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:44:36,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:44:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 11:44:36,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:44:36,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:44:36,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825661367] [2022-07-12 11:44:36,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825661367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:44:36,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:44:36,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:44:36,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699759320] [2022-07-12 11:44:36,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:44:36,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:44:36,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:44:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:44:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:44:36,945 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) [2022-07-12 11:44:38,971 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 [] [2022-07-12 11:44:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:44:43,353 INFO L93 Difference]: Finished difference Result 21641 states and 37277 transitions. [2022-07-12 11:44:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:44:43,354 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 [2022-07-12 11:44:43,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:44:43,417 INFO L225 Difference]: With dead ends: 21641 [2022-07-12 11:44:43,418 INFO L226 Difference]: Without dead ends: 10843 [2022-07-12 11:44:43,472 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 [2022-07-12 11:44:43,473 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 11 mSDsluCounter, 33763 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42404 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 [2022-07-12 11:44:43,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42404 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 11:44:43,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-07-12 11:44:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 10817. [2022-07-12 11:44:45,852 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) [2022-07-12 11:44:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 19255 transitions. [2022-07-12 11:44:45,927 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 19255 transitions. Word has length 80 [2022-07-12 11:44:45,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:44:45,928 INFO L495 AbstractCegarLoop]: Abstraction has 10817 states and 19255 transitions. [2022-07-12 11:44:45,928 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) [2022-07-12 11:44:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 19255 transitions. [2022-07-12 11:44:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 11:44:45,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:44:45,933 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] [2022-07-12 11:44:46,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 11:44:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:44:46,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:44:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:44:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1163497930, now seen corresponding path program 1 times [2022-07-12 11:44:46,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:44:46,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12747519] [2022-07-12 11:44:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:44:46,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:44:46,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:44:46,166 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) [2022-07-12 11:44:46,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 11:44:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:44:55,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 5514 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:44:55,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:44:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 11:44:55,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:44:55,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:44:55,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12747519] [2022-07-12 11:44:55,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12747519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:44:55,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:44:55,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:44:55,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698889696] [2022-07-12 11:44:55,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:44:55,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:44:55,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:44:55,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:44:55,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:44:55,790 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) [2022-07-12 11:44:57,819 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 [] [2022-07-12 11:45:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:45:01,937 INFO L93 Difference]: Finished difference Result 21665 states and 38848 transitions. [2022-07-12 11:45:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:45:01,937 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 [2022-07-12 11:45:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:45:02,020 INFO L225 Difference]: With dead ends: 21665 [2022-07-12 11:45:02,020 INFO L226 Difference]: Without dead ends: 10851 [2022-07-12 11:45:02,114 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 [2022-07-12 11:45:02,114 INFO L413 NwaCegarLoop]: 8632 mSDtfsCounter, 11 mSDsluCounter, 33731 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s 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, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:45:02,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42363 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 11:45:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2022-07-12 11:45:04,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10821. [2022-07-12 11:45:04,514 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) [2022-07-12 11:45:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 19259 transitions. [2022-07-12 11:45:04,579 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 19259 transitions. Word has length 80 [2022-07-12 11:45:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:45:04,579 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 19259 transitions. [2022-07-12 11:45:04,579 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) [2022-07-12 11:45:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 19259 transitions. [2022-07-12 11:45:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 11:45:04,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:45:04,583 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] [2022-07-12 11:45:04,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 11:45:04,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:45:04,799 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:45:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:45:04,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1403609912, now seen corresponding path program 1 times [2022-07-12 11:45:04,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:45:04,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075257449] [2022-07-12 11:45:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:45:04,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:45:04,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:45:04,805 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) [2022-07-12 11:45:04,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 11:45:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:45:14,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 5506 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 11:45:14,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:45:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 11:45:14,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:45:14,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:45:14,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075257449] [2022-07-12 11:45:14,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075257449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:45:14,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:45:14,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:45:14,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788183426] [2022-07-12 11:45:14,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:45:14,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:45:14,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:45:14,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:45:14,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:45:14,942 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) [2022-07-12 11:45:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:45:15,340 INFO L93 Difference]: Finished difference Result 11081 states and 19803 transitions. [2022-07-12 11:45:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:45:15,341 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 [2022-07-12 11:45:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:45:15,410 INFO L225 Difference]: With dead ends: 11081 [2022-07-12 11:45:15,411 INFO L226 Difference]: Without dead ends: 11074 [2022-07-12 11:45:15,428 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 [2022-07-12 11:45:15,429 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 [2022-07-12 11:45:15,429 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] [2022-07-12 11:45:15,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-07-12 11:45:17,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 10827. [2022-07-12 11:45:17,683 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) [2022-07-12 11:45:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10827 states to 10827 states and 19288 transitions. [2022-07-12 11:45:17,743 INFO L78 Accepts]: Start accepts. Automaton has 10827 states and 19288 transitions. Word has length 82 [2022-07-12 11:45:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:45:17,744 INFO L495 AbstractCegarLoop]: Abstraction has 10827 states and 19288 transitions. [2022-07-12 11:45:17,744 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) [2022-07-12 11:45:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states and 19288 transitions. [2022-07-12 11:45:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 11:45:17,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:45:17,748 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] [2022-07-12 11:45:17,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 11:45:17,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:45:17,961 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:45:17,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:45:17,962 INFO L85 PathProgramCache]: Analyzing trace with hash -768326530, now seen corresponding path program 1 times [2022-07-12 11:45:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:45:17,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020267259] [2022-07-12 11:45:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:45:17,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:45:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:45:17,967 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) [2022-07-12 11:45:17,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 11:45:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:45:25,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 5490 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:45:25,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:45:26,116 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-12 11:45:26,117 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 [2022-07-12 11:45:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 11:45:26,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:45:26,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 11:45:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020267259] [2022-07-12 11:45:26,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020267259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:45:26,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:45:26,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:45:26,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997455122] [2022-07-12 11:45:26,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:45:26,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:45:26,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 11:45:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:45:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:45:26,146 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) [2022-07-12 11:45:28,750 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 [] [2022-07-12 11:45:31,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:45:33,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:45:43,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:45:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:45:50,801 INFO L93 Difference]: Finished difference Result 21825 states and 38883 transitions. [2022-07-12 11:45:50,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:45:50,802 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 76 [2022-07-12 11:45:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:45:50,880 INFO L225 Difference]: With dead ends: 21825 [2022-07-12 11:45:50,881 INFO L226 Difference]: Without dead ends: 11001 [2022-07-12 11:45:50,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:45:50,952 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 204 mSDsluCounter, 15794 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 24446 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:45:50,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 24446 Invalid, 1576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1568 Invalid, 3 Unknown, 0 Unchecked, 24.0s Time] [2022-07-12 11:45:50,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-07-12 11:45:53,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10948. [2022-07-12 11:45:53,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10948 states, 8244 states have (on average 1.5336001940805435) internal successors, (12643), 8261 states have internal predecessors, (12643), 2585 states have call successors, (2585), 120 states have call predecessors, (2585), 118 states have return successors, (4244), 2570 states have call predecessors, (4244), 2578 states have call successors, (4244) [2022-07-12 11:45:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10948 states to 10948 states and 19472 transitions. [2022-07-12 11:45:53,363 INFO L78 Accepts]: Start accepts. Automaton has 10948 states and 19472 transitions. Word has length 76 [2022-07-12 11:45:53,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:45:53,363 INFO L495 AbstractCegarLoop]: Abstraction has 10948 states and 19472 transitions. [2022-07-12 11:45:53,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-12 11:45:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 10948 states and 19472 transitions. [2022-07-12 11:45:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-12 11:45:53,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:45:53,368 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, 1] [2022-07-12 11:45:53,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 11:45:53,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 11:45:53,576 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:45:53,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:45:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash 636354924, now seen corresponding path program 1 times [2022-07-12 11:45:53,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 11:45:53,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1061648700] [2022-07-12 11:45:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:45:53,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 11:45:53,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 11:45:53,582 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 11:45:53,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process