./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/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-?-3598765 [2022-07-21 10:16:28,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:16:28,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:16:28,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:16:28,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:16:28,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:16:28,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:16:28,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:16:28,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:16:28,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:16:28,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:16:28,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:16:28,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:16:28,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:16:28,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:16:28,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:16:28,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:16:28,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:16:28,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:16:28,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:16:28,866 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:16:28,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:16:28,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:16:28,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:16:28,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:16:28,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:16:28,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:16:28,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:16:28,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:16:28,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:16:28,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:16:28,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:16:28,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:16:28,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:16:28,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:16:28,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:16:28,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:16:28,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:16:28,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:16:28,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:16:28,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:16:28,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:16:28,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:16:28,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:16:28,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:16:28,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:16:28,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:16:28,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:16:28,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:16:28,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:16:28,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:16:28,924 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:16:28,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:16:28,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:16:28,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:16:28,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:16:28,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:16:28,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:16:28,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:16:28,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:16:28,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:16:28,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:16:28,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:16:28,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:28,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:16:28,927 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:16:28,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:16:28,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:16:28,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-21 10:16:29,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:16:29,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:16:29,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:16:29,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:16:29,245 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:16:29,246 INFO L432 ainManager$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 [2022-07-21 10:16:29,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5693d5bfa/b65652d8b7fb4bc2958a3e25d5c0b665/FLAGe1b864538 [2022-07-21 10:16:29,973 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:16:29,974 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 [2022-07-21 10:16:30,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5693d5bfa/b65652d8b7fb4bc2958a3e25d5c0b665/FLAGe1b864538 [2022-07-21 10:16:30,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5693d5bfa/b65652d8b7fb4bc2958a3e25d5c0b665 [2022-07-21 10:16:30,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:16:30,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:16:30,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:30,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:16:30,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:16:30,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:30" (1/1) ... [2022-07-21 10:16:30,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf9ea76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:30, skipping insertion in model container [2022-07-21 10:16:30,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:30" (1/1) ... [2022-07-21 10:16:30,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:16:30,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:16:31,982 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] [2022-07-21 10:16:32,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:32,232 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:16:32,507 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 10:16:32,524 INFO L158 Benchmark]: Toolchain (without parser) took 2194.22ms. Allocated memory was 62.9MB in the beginning and 169.9MB in the end (delta: 107.0MB). Free memory was 33.6MB in the beginning and 81.0MB in the end (delta: -47.3MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2022-07-21 10:16:32,524 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.5MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:16:32,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2178.69ms. Allocated memory was 62.9MB in the beginning and 169.9MB in the end (delta: 107.0MB). Free memory was 33.5MB in the beginning and 81.0MB in the end (delta: -47.5MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2022-07-21 10:16:32,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.5MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2178.69ms. Allocated memory was 62.9MB in the beginning and 169.9MB in the end (delta: 107.0MB). Free memory was 33.5MB in the beginning and 81.0MB in the end (delta: -47.5MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:16:34,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:16:34,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:16:34,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:16:34,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:16:34,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:16:34,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:16:34,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:16:34,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:16:34,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:16:34,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:16:34,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:16:34,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:16:34,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:16:34,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:16:34,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:16:34,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:16:34,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:16:34,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:16:34,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:16:34,119 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:16:34,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:16:34,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:16:34,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:16:34,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:16:34,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:16:34,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:16:34,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:16:34,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:16:34,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:16:34,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:16:34,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:16:34,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:16:34,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:16:34,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:16:34,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:16:34,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:16:34,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:16:34,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:16:34,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:16:34,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:16:34,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:16:34,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 10:16:34,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:16:34,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:16:34,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:16:34,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:16:34,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:16:34,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:16:34,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:16:34,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:16:34,167 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:16:34,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:16:34,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:16:34,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:16:34,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:16:34,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:16:34,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 10:16:34,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 10:16:34,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 10:16:34,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:16:34,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:16:34,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:16:34,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:16:34,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:16:34,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:16:34,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:34,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:16:34,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:16:34,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:16:34,178 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 10:16:34,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 10:16:34,179 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:16:34,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:16:34,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:16:34,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 10:16:34,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-21 10:16:34,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:16:34,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:16:34,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:16:34,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:16:34,447 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:16:34,448 INFO L432 ainManager$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 [2022-07-21 10:16:34,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269cf0fe0/14693bb104c94c2ea2cf4915ea4bd440/FLAG4b8cc9fb9 [2022-07-21 10:16:35,178 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:16:35,179 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 [2022-07-21 10:16:35,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269cf0fe0/14693bb104c94c2ea2cf4915ea4bd440/FLAG4b8cc9fb9 [2022-07-21 10:16:35,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269cf0fe0/14693bb104c94c2ea2cf4915ea4bd440 [2022-07-21 10:16:35,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:16:35,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:16:35,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:35,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:16:35,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:16:35,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:35" (1/1) ... [2022-07-21 10:16:35,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bee7ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:35, skipping insertion in model container [2022-07-21 10:16:35,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:35" (1/1) ... [2022-07-21 10:16:35,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:16:35,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:16:36,975 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] [2022-07-21 10:16:37,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:37,295 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 10:16:37,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:16:37,680 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] [2022-07-21 10:16:37,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:37,717 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:16:38,107 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] [2022-07-21 10:16:38,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:38,269 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:16:38,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38 WrapperNode [2022-07-21 10:16:38,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:38,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:38,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:16:38,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:16:38,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,578 INFO L137 Inliner]: procedures = 199, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 15657 [2022-07-21 10:16:38,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:38,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:16:38,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:16:38,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:16:38,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:38,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:16:38,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:16:38,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:16:38,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:16:38,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (1/1) ... [2022-07-21 10:16:39,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:16:39,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:16:39,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:16:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2022-07-21 10:16:39,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2022-07-21 10:16:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 10:16:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 10:16:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 10:16:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-21 10:16:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-21 10:16:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 10:16:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:16:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:16:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-21 10:16:39,124 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-21 10:16:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-21 10:16:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-21 10:16:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-21 10:16:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-21 10:16:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:16:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:16:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:16:39,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:16:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-21 10:16:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-21 10:16:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-21 10:16:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-21 10:16:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-21 10:16:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-21 10:16:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-21 10:16:39,126 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-21 10:16:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:16:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:16:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-21 10:16:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-21 10:16:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:16:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-21 10:16:39,127 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-21 10:16:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-21 10:16:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-21 10:16:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:16:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-21 10:16:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-21 10:16:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-21 10:16:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-21 10:16:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-21 10:16:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-21 10:16:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-21 10:16:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-21 10:16:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-21 10:16:39,130 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-21 10:16:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 10:16:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 10:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 10:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 10:16:39,131 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-21 10:16:39,131 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-21 10:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 10:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 10:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:16:39,132 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-21 10:16:39,132 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-21 10:16:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-21 10:16:39,133 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-21 10:16:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-21 10:16:39,133 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-21 10:16:39,133 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-21 10:16:39,133 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-21 10:16:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-21 10:16:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-21 10:16:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2022-07-21 10:16:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2022-07-21 10:16:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-21 10:16:39,134 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-21 10:16:39,134 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-21 10:16:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-21 10:16:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 10:16:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 10:16:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:16:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:16:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-21 10:16:39,135 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-21 10:16:39,135 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-21 10:16:39,136 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-21 10:16:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-21 10:16:39,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-21 10:16:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 10:16:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 10:16:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 10:16:39,137 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-21 10:16:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-21 10:16:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 10:16:39,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-21 10:16:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:16:39,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:16:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-21 10:16:39,139 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-21 10:16:39,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 10:16:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-21 10:16:39,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-21 10:16:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-21 10:16:39,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-21 10:16:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-21 10:16:39,140 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-21 10:16:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-21 10:16:39,141 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-21 10:16:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-21 10:16:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-21 10:16:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 10:16:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2022-07-21 10:16:39,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2022-07-21 10:16:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-21 10:16:39,145 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-21 10:16:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:16:39,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:16:40,058 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:16:40,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:17:18,545 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:17:18,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:17:18,614 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:17:18,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:17:18 BoogieIcfgContainer [2022-07-21 10:17:18,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:17:18,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:17:18,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:17:18,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:17:18,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:16:35" (1/3) ... [2022-07-21 10:17:18,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4591cbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:17:18, skipping insertion in model container [2022-07-21 10:17:18,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:38" (2/3) ... [2022-07-21 10:17:18,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4591cbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:17:18, skipping insertion in model container [2022-07-21 10:17:18,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:17:18" (3/3) ... [2022-07-21 10:17:18,650 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-21 10:17:18,661 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:17:18,661 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:17:18,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:17:18,822 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@18c442ce, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@b1dbcbf [2022-07-21 10:17:18,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:17:18,840 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) [2022-07-21 10:17:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-21 10:17:18,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:18,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:18,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:18,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736919, now seen corresponding path program 1 times [2022-07-21 10:17:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:17:18,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844188329] [2022-07-21 10:17:18,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:18,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:17:18,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:17:18,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:17:18,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 10:17:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:26,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:17:26,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:17:26,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:26,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:17:26,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844188329] [2022-07-21 10:17:26,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844188329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:26,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:26,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:17:26,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495653513] [2022-07-21 10:17:26,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:26,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:17:26,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:17:26,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:17:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:17:26,755 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) [2022-07-21 10:17:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:27,493 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2022-07-21 10:17:27,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:17:27,495 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 [2022-07-21 10:17:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:27,561 INFO L225 Difference]: With dead ends: 10596 [2022-07-21 10:17:27,561 INFO L226 Difference]: Without dead ends: 5294 [2022-07-21 10:17:27,628 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 [2022-07-21 10:17:27,632 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:27,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8639 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 10:17:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-07-21 10:17:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2022-07-21 10:17:28,321 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) [2022-07-21 10:17:28,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2022-07-21 10:17:28,379 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2022-07-21 10:17:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:28,379 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2022-07-21 10:17:28,380 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) [2022-07-21 10:17:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2022-07-21 10:17:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-21 10:17:28,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:28,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:28,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:28,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:17:28,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash -138225563, now seen corresponding path program 1 times [2022-07-21 10:17:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:17:28,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457728097] [2022-07-21 10:17:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:17:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:17:28,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:17:28,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 10:17:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:35,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:17:35,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:17:35,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:35,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:17:35,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457728097] [2022-07-21 10:17:35,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457728097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:35,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:35,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:17:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997820240] [2022-07-21 10:17:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:35,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:17:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:17:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:17:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:17:35,848 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) [2022-07-21 10:17:36,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:36,535 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2022-07-21 10:17:36,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:17:36,536 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 [2022-07-21 10:17:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:36,578 INFO L225 Difference]: With dead ends: 10658 [2022-07-21 10:17:36,579 INFO L226 Difference]: Without dead ends: 5367 [2022-07-21 10:17:36,619 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 [2022-07-21 10:17:36,620 INFO L413 NwaCegarLoop]: 8640 mSDtfsCounter, 8370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:36,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8370 Valid, 9007 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 10:17:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2022-07-21 10:17:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2022-07-21 10:17:37,408 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) [2022-07-21 10:17:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2022-07-21 10:17:37,449 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2022-07-21 10:17:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:37,453 INFO L495 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2022-07-21 10:17:37,453 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) [2022-07-21 10:17:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2022-07-21 10:17:37,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 10:17:37,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:37,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:37,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:37,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:17:37,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:37,674 INFO L85 PathProgramCache]: Analyzing trace with hash 7484506, now seen corresponding path program 1 times [2022-07-21 10:17:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:17:37,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961932436] [2022-07-21 10:17:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:37,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:17:37,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:17:37,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:17:37,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 10:17:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:45,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:17:45,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:17:45,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:45,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:17:45,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961932436] [2022-07-21 10:17:45,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961932436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:45,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:45,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:17:45,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827999517] [2022-07-21 10:17:45,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:45,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:17:45,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:17:45,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:17:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:17:45,042 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) [2022-07-21 10:17:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:45,497 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2022-07-21 10:17:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:17:45,498 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 [2022-07-21 10:17:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:45,539 INFO L225 Difference]: With dead ends: 5366 [2022-07-21 10:17:45,539 INFO L226 Difference]: Without dead ends: 5363 [2022-07-21 10:17:45,548 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 [2022-07-21 10:17:45,550 INFO L413 NwaCegarLoop]: 8633 mSDtfsCounter, 8627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8627 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:45,551 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] [2022-07-21 10:17:45,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2022-07-21 10:17:46,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2022-07-21 10:17:46,427 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) [2022-07-21 10:17:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2022-07-21 10:17:46,462 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2022-07-21 10:17:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:46,462 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2022-07-21 10:17:46,462 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) [2022-07-21 10:17:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2022-07-21 10:17:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 10:17:46,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:46,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:46,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:46,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:17:46,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:46,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash 229534216, now seen corresponding path program 1 times [2022-07-21 10:17:46,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:17:46,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063021376] [2022-07-21 10:17:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:46,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:17:46,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:17:46,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:17:46,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 10:17:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:54,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:17:54,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:17:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:17:54,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:17:54,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:17:54,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063021376] [2022-07-21 10:17:54,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063021376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:54,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:54,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:17:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544227242] [2022-07-21 10:17:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:54,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:17:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:17:54,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:17:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:17:54,686 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) [2022-07-21 10:17:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:55,138 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2022-07-21 10:17:55,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:17:55,139 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 [2022-07-21 10:17:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:55,179 INFO L225 Difference]: With dead ends: 5365 [2022-07-21 10:17:55,179 INFO L226 Difference]: Without dead ends: 5362 [2022-07-21 10:17:55,188 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 [2022-07-21 10:17:55,190 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 [2022-07-21 10:17:55,191 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] [2022-07-21 10:17:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-07-21 10:17:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2022-07-21 10:17:55,788 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) [2022-07-21 10:17:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2022-07-21 10:17:55,825 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2022-07-21 10:17:55,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:55,826 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2022-07-21 10:17:55,826 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) [2022-07-21 10:17:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2022-07-21 10:17:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 10:17:55,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:55,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:55,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 10:17:56,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:17:56,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854499, now seen corresponding path program 1 times [2022-07-21 10:17:56,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:17:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697365110] [2022-07-21 10:17:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:56,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:17:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:17:56,059 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:17:56,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 10:18:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:18:03,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 4877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:18:03,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:18:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:18:03,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:18:03,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:18:03,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697365110] [2022-07-21 10:18:03,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697365110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:18:03,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:18:03,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:18:03,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954691567] [2022-07-21 10:18:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:18:03,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:18:03,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:18:03,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:18:03,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:18:03,757 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) [2022-07-21 10:18:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:04,163 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2022-07-21 10:18:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:18:04,164 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 [2022-07-21 10:18:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:04,198 INFO L225 Difference]: With dead ends: 5364 [2022-07-21 10:18:04,199 INFO L226 Difference]: Without dead ends: 5361 [2022-07-21 10:18:04,206 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 [2022-07-21 10:18:04,207 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 8621 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8621 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:18:04,207 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] [2022-07-21 10:18:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-07-21 10:18:04,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2022-07-21 10:18:04,799 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) [2022-07-21 10:18:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2022-07-21 10:18:04,834 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2022-07-21 10:18:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:04,834 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2022-07-21 10:18:04,834 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) [2022-07-21 10:18:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2022-07-21 10:18:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 10:18:04,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:04,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:18:04,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 10:18:05,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:18:05,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:05,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675051, now seen corresponding path program 1 times [2022-07-21 10:18:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:18:05,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396765102] [2022-07-21 10:18:05,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:05,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:18:05,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:18:05,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:18:05,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 10:18:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:18:12,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:18:12,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:18:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:18:12,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:18:12,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:18:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396765102] [2022-07-21 10:18:12,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396765102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:18:12,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:18:12,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:18:12,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501741462] [2022-07-21 10:18:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:18:12,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:18:12,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:18:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:18:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:18:12,340 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) [2022-07-21 10:18:12,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:12,968 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2022-07-21 10:18:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:18:12,968 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 [2022-07-21 10:18:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:13,132 INFO L225 Difference]: With dead ends: 16061 [2022-07-21 10:18:13,133 INFO L226 Difference]: Without dead ends: 10697 [2022-07-21 10:18:13,162 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 [2022-07-21 10:18:13,164 INFO L413 NwaCegarLoop]: 10012 mSDtfsCounter, 8649 mSDsluCounter, 8651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:18:13,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8649 Valid, 18663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 10:18:13,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-07-21 10:18:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2022-07-21 10:18:14,270 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) [2022-07-21 10:18:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2022-07-21 10:18:14,421 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2022-07-21 10:18:14,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:14,421 INFO L495 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2022-07-21 10:18:14,422 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) [2022-07-21 10:18:14,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2022-07-21 10:18:14,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 10:18:14,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:14,432 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] [2022-07-21 10:18:14,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-21 10:18:14,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:18:14,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:14,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1570930916, now seen corresponding path program 1 times [2022-07-21 10:18:14,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:18:14,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352542456] [2022-07-21 10:18:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:14,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:18:14,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:18:14,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:18:14,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 10:18:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:18:23,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:18:23,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:18:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 10:18:23,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:18:23,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:18:23,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352542456] [2022-07-21 10:18:23,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352542456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:18:23,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:18:23,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:18:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214741086] [2022-07-21 10:18:23,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:18:23,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:18:23,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:18:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:18:23,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:18:23,168 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) [2022-07-21 10:18:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:23,879 INFO L93 Difference]: Finished difference Result 21480 states and 35292 transitions. [2022-07-21 10:18:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:18:23,880 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 [2022-07-21 10:18:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:23,948 INFO L225 Difference]: With dead ends: 21480 [2022-07-21 10:18:23,948 INFO L226 Difference]: Without dead ends: 10795 [2022-07-21 10:18:24,068 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 [2022-07-21 10:18:24,069 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 [2022-07-21 10:18:24,069 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] [2022-07-21 10:18:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-07-21 10:18:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 10793. [2022-07-21 10:18:25,253 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) [2022-07-21 10:18:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 17684 transitions. [2022-07-21 10:18:25,320 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 17684 transitions. Word has length 69 [2022-07-21 10:18:25,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:25,321 INFO L495 AbstractCegarLoop]: Abstraction has 10793 states and 17684 transitions. [2022-07-21 10:18:25,321 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) [2022-07-21 10:18:25,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 17684 transitions. [2022-07-21 10:18:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 10:18:25,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:25,327 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] [2022-07-21 10:18:25,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 10:18:25,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:18:25,544 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1925660316, now seen corresponding path program 1 times [2022-07-21 10:18:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:18:25,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375252506] [2022-07-21 10:18:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:25,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:18:25,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:18:25,551 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:18:25,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 10:18:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:18:35,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 5393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 10:18:35,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:18:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:18:35,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:18:35,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:18:35,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375252506] [2022-07-21 10:18:35,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375252506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:18:35,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:18:35,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:18:35,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860302750] [2022-07-21 10:18:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:18:35,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:18:35,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:18:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:18:35,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:18:35,990 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) [2022-07-21 10:18:38,006 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 [] [2022-07-21 10:18:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:38,378 INFO L93 Difference]: Finished difference Result 21587 states and 37177 transitions. [2022-07-21 10:18:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:18:38,379 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 [2022-07-21 10:18:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:38,441 INFO L225 Difference]: With dead ends: 21587 [2022-07-21 10:18:38,442 INFO L226 Difference]: Without dead ends: 10797 [2022-07-21 10:18:38,537 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 [2022-07-21 10:18:38,538 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 0 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17254 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:18:38,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17254 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 10:18:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2022-07-21 10:18:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10797. [2022-07-21 10:18:39,761 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) [2022-07-21 10:18:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 17688 transitions. [2022-07-21 10:18:39,824 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 17688 transitions. Word has length 78 [2022-07-21 10:18:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:39,826 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 17688 transitions. [2022-07-21 10:18:39,826 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) [2022-07-21 10:18:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 17688 transitions. [2022-07-21 10:18:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 10:18:39,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:39,831 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] [2022-07-21 10:18:40,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 10:18:40,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:18:40,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:40,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1890292754, now seen corresponding path program 1 times [2022-07-21 10:18:40,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:18:40,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345795118] [2022-07-21 10:18:40,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:40,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:18:40,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:18:40,075 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:18:40,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 10:18:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:18:50,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 5488 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 10:18:50,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:18:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:18:50,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:18:50,651 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:18:50,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345795118] [2022-07-21 10:18:50,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345795118] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:18:50,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:18:50,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:18:50,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769850392] [2022-07-21 10:18:50,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:18:50,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:18:50,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:18:50,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:18:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:18:50,653 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) [2022-07-21 10:18:52,681 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 [] [2022-07-21 10:18:54,710 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 [] [2022-07-21 10:18:55,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:18:55,166 INFO L93 Difference]: Finished difference Result 21595 states and 37185 transitions. [2022-07-21 10:18:55,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:18:55,167 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 [2022-07-21 10:18:55,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:18:55,278 INFO L225 Difference]: With dead ends: 21595 [2022-07-21 10:18:55,279 INFO L226 Difference]: Without dead ends: 10801 [2022-07-21 10:18:55,417 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 [2022-07-21 10:18:55,419 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 [2022-07-21 10:18:55,420 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] [2022-07-21 10:18:55,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-07-21 10:18:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 10801. [2022-07-21 10:18:56,598 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) [2022-07-21 10:18:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10801 states to 10801 states and 17692 transitions. [2022-07-21 10:18:56,673 INFO L78 Accepts]: Start accepts. Automaton has 10801 states and 17692 transitions. Word has length 79 [2022-07-21 10:18:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:18:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 10801 states and 17692 transitions. [2022-07-21 10:18:56,674 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) [2022-07-21 10:18:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 10801 states and 17692 transitions. [2022-07-21 10:18:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 10:18:56,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:18:56,678 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] [2022-07-21 10:18:56,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 10:18:56,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:18:56,879 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:18:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:18:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -539716282, now seen corresponding path program 1 times [2022-07-21 10:18:56,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:18:56,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056850304] [2022-07-21 10:18:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:18:56,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:18:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:18:56,889 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:18:56,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 10:19:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:19:08,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 5504 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:19:08,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:19:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 10:19:08,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:19:08,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:19:08,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056850304] [2022-07-21 10:19:08,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056850304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:19:08,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:19:08,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:19:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098552500] [2022-07-21 10:19:08,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:19:08,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:19:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:19:08,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:19:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:19:08,487 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) [2022-07-21 10:19:10,508 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 [] [2022-07-21 10:19:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:19:15,705 INFO L93 Difference]: Finished difference Result 21641 states and 37277 transitions. [2022-07-21 10:19:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:19:15,706 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 [2022-07-21 10:19:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:19:15,798 INFO L225 Difference]: With dead ends: 21641 [2022-07-21 10:19:15,799 INFO L226 Difference]: Without dead ends: 10843 [2022-07-21 10:19:15,890 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 [2022-07-21 10:19:15,891 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 11 mSDsluCounter, 33763 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42404 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:19:15,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42404 Invalid, 807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-07-21 10:19:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-07-21 10:19:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 10817. [2022-07-21 10:19:18,317 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) [2022-07-21 10:19:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 19255 transitions. [2022-07-21 10:19:18,444 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 19255 transitions. Word has length 80 [2022-07-21 10:19:18,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:19:18,445 INFO L495 AbstractCegarLoop]: Abstraction has 10817 states and 19255 transitions. [2022-07-21 10:19:18,445 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) [2022-07-21 10:19:18,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 19255 transitions. [2022-07-21 10:19:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 10:19:18,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:19:18,450 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] [2022-07-21 10:19:18,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 10:19:18,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:19:18,667 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:19:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:19:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1163497930, now seen corresponding path program 1 times [2022-07-21 10:19:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:19:18,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390425462] [2022-07-21 10:19:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:19:18,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:19:18,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:19:18,680 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:19:18,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 10:19:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:19:29,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 5504 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:19:29,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:19:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 10:19:29,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:19:29,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:19:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390425462] [2022-07-21 10:19:29,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390425462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:19:29,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:19:29,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:19:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106963397] [2022-07-21 10:19:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:19:29,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:19:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:19:29,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:19:29,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:19:29,185 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) [2022-07-21 10:19:31,211 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 [] [2022-07-21 10:19:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:19:35,325 INFO L93 Difference]: Finished difference Result 21665 states and 38848 transitions. [2022-07-21 10:19:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:19:35,326 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 [2022-07-21 10:19:35,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:19:35,430 INFO L225 Difference]: With dead ends: 21665 [2022-07-21 10:19:35,431 INFO L226 Difference]: Without dead ends: 10851 [2022-07-21 10:19:35,533 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 [2022-07-21 10:19:35,540 INFO L413 NwaCegarLoop]: 8632 mSDtfsCounter, 11 mSDsluCounter, 33731 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s 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, 5.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:19:35,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42363 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-07-21 10:19:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2022-07-21 10:19:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10821. [2022-07-21 10:19:37,836 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) [2022-07-21 10:19:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 19259 transitions. [2022-07-21 10:19:37,904 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 19259 transitions. Word has length 80 [2022-07-21 10:19:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:19:37,904 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 19259 transitions. [2022-07-21 10:19:37,904 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) [2022-07-21 10:19:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 19259 transitions. [2022-07-21 10:19:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 10:19:37,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:19:37,909 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] [2022-07-21 10:19:38,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 10:19:38,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:19:38,123 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:19:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:19:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1403609912, now seen corresponding path program 1 times [2022-07-21 10:19:38,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:19:38,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411111076] [2022-07-21 10:19:38,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:19:38,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:19:38,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:19:38,130 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:19:38,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 10:19:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:19:48,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 5496 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 10:19:48,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:19:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 10:19:48,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:19:48,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:19:48,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411111076] [2022-07-21 10:19:48,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411111076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:19:48,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:19:48,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:19:48,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712939320] [2022-07-21 10:19:48,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:19:48,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:19:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:19:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:19:48,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:19:48,905 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) [2022-07-21 10:19:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:19:49,297 INFO L93 Difference]: Finished difference Result 11081 states and 19803 transitions. [2022-07-21 10:19:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:19:49,298 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 [2022-07-21 10:19:49,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:19:49,357 INFO L225 Difference]: With dead ends: 11081 [2022-07-21 10:19:49,357 INFO L226 Difference]: Without dead ends: 11074 [2022-07-21 10:19:49,374 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 [2022-07-21 10:19:49,375 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 [2022-07-21 10:19:49,375 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] [2022-07-21 10:19:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-07-21 10:19:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 10827. [2022-07-21 10:19:51,539 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) [2022-07-21 10:19:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10827 states to 10827 states and 19288 transitions. [2022-07-21 10:19:51,605 INFO L78 Accepts]: Start accepts. Automaton has 10827 states and 19288 transitions. Word has length 82 [2022-07-21 10:19:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:19:51,605 INFO L495 AbstractCegarLoop]: Abstraction has 10827 states and 19288 transitions. [2022-07-21 10:19:51,605 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) [2022-07-21 10:19:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states and 19288 transitions. [2022-07-21 10:19:51,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 10:19:51,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:19:51,610 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] [2022-07-21 10:19:51,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 10:19:51,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:19:51,823 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:19:51,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:19:51,824 INFO L85 PathProgramCache]: Analyzing trace with hash -768326530, now seen corresponding path program 1 times [2022-07-21 10:19:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:19:51,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393348412] [2022-07-21 10:19:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:19:51,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:19:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:19:51,829 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 10:19:51,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 10:19:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:20:00,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 10:20:00,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:20:00,721 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-21 10:20:00,721 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 [2022-07-21 10:20:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-21 10:20:00,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:20:00,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 10:20:00,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393348412] [2022-07-21 10:20:00,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393348412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:20:00,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:20:00,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:20:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728541225] [2022-07-21 10:20:00,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:20:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:20:00,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 10:20:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:20:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:20:00,757 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) [2022-07-21 10:20:03,387 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 [] [2022-07-21 10:20:05,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:20:07,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:20:09,656 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 [] [2022-07-21 10:20:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:20:27,779 INFO L93 Difference]: Finished difference Result 21825 states and 38883 transitions. [2022-07-21 10:20:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:20:27,781 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 [2022-07-21 10:20:27,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:20:27,868 INFO L225 Difference]: With dead ends: 21825 [2022-07-21 10:20:27,869 INFO L226 Difference]: Without dead ends: 11001 [2022-07-21 10:20:27,954 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 [2022-07-21 10:20:27,955 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 204 mSDsluCounter, 15794 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s 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, 26.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:20:27,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 24446 Invalid, 1576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1568 Invalid, 3 Unknown, 0 Unchecked, 26.3s Time] [2022-07-21 10:20:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-07-21 10:20:30,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10948. [2022-07-21 10:20:30,229 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) [2022-07-21 10:20:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10948 states to 10948 states and 19472 transitions. [2022-07-21 10:20:30,312 INFO L78 Accepts]: Start accepts. Automaton has 10948 states and 19472 transitions. Word has length 76 [2022-07-21 10:20:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:20:30,312 INFO L495 AbstractCegarLoop]: Abstraction has 10948 states and 19472 transitions. [2022-07-21 10:20:30,312 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) [2022-07-21 10:20:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 10948 states and 19472 transitions. [2022-07-21 10:20:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 10:20:30,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:20:30,317 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] [2022-07-21 10:20:30,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 10:20:30,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 10:20:30,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:20:30,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:20:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash 636354924, now seen corresponding path program 1 times [2022-07-21 10:20:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 10:20:30,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582199474] [2022-07-21 10:20:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:20:30,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 10:20:30,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 10:20:30,551 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) [2022-07-21 10:20:30,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process