./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/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-?-f4b24e3 [2022-07-13 23:22:40,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:22:40,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:22:40,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:22:40,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:22:40,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:22:40,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:22:40,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:22:40,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:22:40,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:22:40,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:22:40,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:22:40,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:22:40,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:22:40,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:22:40,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:22:40,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:22:40,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:22:40,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:22:40,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:22:40,200 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:22:40,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:22:40,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:22:40,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:22:40,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:22:40,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:22:40,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:22:40,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:22:40,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:22:40,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:22:40,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:22:40,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:22:40,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:22:40,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:22:40,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:22:40,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:22:40,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:22:40,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:22:40,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:22:40,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:22:40,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:22:40,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:22:40,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 23:22:40,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:22:40,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:22:40,253 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:22:40,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:22:40,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:22:40,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:22:40,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:22:40,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:22:40,255 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:22:40,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:22:40,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 23:22:40,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:22:40,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:22:40,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:22:40,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:22:40,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:22:40,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:22:40,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:22:40,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:22:40,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:22:40,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:22:40,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 23:22:40,258 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:22:40,259 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:22:40,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:22:40,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-13 23:22:40,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:22:40,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:22:40,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:22:40,453 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:22:40,454 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:22:40,455 INFO L432 ainManager$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 [2022-07-13 23:22:40,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e36cd91/a7c0b0b786704c9c980a6253474e8960/FLAG86d7b13fb [2022-07-13 23:22:41,112 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:22:41,113 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 [2022-07-13 23:22:41,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e36cd91/a7c0b0b786704c9c980a6253474e8960/FLAG86d7b13fb [2022-07-13 23:22:41,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e36cd91/a7c0b0b786704c9c980a6253474e8960 [2022-07-13 23:22:41,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:22:41,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:22:41,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:22:41,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:22:41,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:22:41,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:22:41" (1/1) ... [2022-07-13 23:22:41,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b61f3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:41, skipping insertion in model container [2022-07-13 23:22:41,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:22:41" (1/1) ... [2022-07-13 23:22:41,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:22:41,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:22:43,006 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] [2022-07-13 23:22:43,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:22:43,225 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:22:43,428 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) [2022-07-13 23:22:43,433 INFO L158 Benchmark]: Toolchain (without parser) took 2182.26ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 67.9MB in the beginning and 62.4MB in the end (delta: 5.4MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-07-13 23:22:43,434 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 23:22:43,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2180.70ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 67.6MB in the beginning and 62.4MB in the end (delta: 5.2MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-07-13 23:22:43,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2180.70ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 67.6MB in the beginning and 62.4MB in the end (delta: 5.2MB). Peak memory consumption was 87.4MB. 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-?-f4b24e3 [2022-07-13 23:22:45,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 23:22:45,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 23:22:45,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 23:22:45,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 23:22:45,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 23:22:45,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 23:22:45,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 23:22:45,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 23:22:45,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 23:22:45,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 23:22:45,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 23:22:45,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 23:22:45,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 23:22:45,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 23:22:45,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 23:22:45,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 23:22:45,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 23:22:45,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 23:22:45,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 23:22:45,323 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 23:22:45,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 23:22:45,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 23:22:45,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 23:22:45,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 23:22:45,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 23:22:45,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 23:22:45,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 23:22:45,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 23:22:45,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 23:22:45,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 23:22:45,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 23:22:45,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 23:22:45,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 23:22:45,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 23:22:45,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 23:22:45,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 23:22:45,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 23:22:45,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 23:22:45,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 23:22:45,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 23:22:45,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 23:22:45,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-13 23:22:45,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 23:22:45,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 23:22:45,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 23:22:45,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 23:22:45,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 23:22:45,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 23:22:45,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 23:22:45,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 23:22:45,380 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 23:22:45,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 23:22:45,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 23:22:45,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 23:22:45,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 23:22:45,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 23:22:45,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 23:22:45,382 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 23:22:45,382 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 23:22:45,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 23:22:45,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 23:22:45,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 23:22:45,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 23:22:45,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 23:22:45,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 23:22:45,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:22:45,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 23:22:45,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 23:22:45,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 23:22:45,384 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 23:22:45,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 23:22:45,384 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 23:22:45,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 23:22:45,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 23:22:45,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 23:22:45,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2022-07-13 23:22:45,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 23:22:45,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 23:22:45,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 23:22:45,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 23:22:45,753 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 23:22:45,754 INFO L432 ainManager$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 [2022-07-13 23:22:45,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce9a8c52/204cffc493d14cc89191458a4f797ef7/FLAGd179dce91 [2022-07-13 23:22:46,632 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 23:22:46,633 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 [2022-07-13 23:22:46,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce9a8c52/204cffc493d14cc89191458a4f797ef7/FLAGd179dce91 [2022-07-13 23:22:46,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ce9a8c52/204cffc493d14cc89191458a4f797ef7 [2022-07-13 23:22:46,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 23:22:46,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 23:22:46,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 23:22:46,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 23:22:46,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 23:22:46,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:22:46" (1/1) ... [2022-07-13 23:22:46,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf9505b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:46, skipping insertion in model container [2022-07-13 23:22:46,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 11:22:46" (1/1) ... [2022-07-13 23:22:46,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 23:22:47,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:22:48,911 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] [2022-07-13 23:22:49,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:22:49,148 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-13 23:22:49,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 23:22:49,626 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] [2022-07-13 23:22:49,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:22:49,656 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 23:22:50,066 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] [2022-07-13 23:22:50,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 23:22:50,209 INFO L208 MainTranslator]: Completed translation [2022-07-13 23:22:50,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50 WrapperNode [2022-07-13 23:22:50,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 23:22:50,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 23:22:50,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 23:22:50,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 23:22:50,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:50,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:50,711 INFO L137 Inliner]: procedures = 199, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 15657 [2022-07-13 23:22:50,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 23:22:50,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 23:22:50,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 23:22:50,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 23:22:50,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:50,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:50,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:50,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:51,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:51,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:51,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:51,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 23:22:51,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 23:22:51,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 23:22:51,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 23:22:51,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (1/1) ... [2022-07-13 23:22:51,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 23:22:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 23:22:51,236 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) [2022-07-13 23:22:51,240 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 [2022-07-13 23:22:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2022-07-13 23:22:51,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2022-07-13 23:22:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-13 23:22:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-13 23:22:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-13 23:22:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-13 23:22:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-13 23:22:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 23:22:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-13 23:22:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-13 23:22:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-13 23:22:51,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-13 23:22:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-13 23:22:51,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-13 23:22:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-13 23:22:51,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-13 23:22:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-13 23:22:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-13 23:22:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-13 23:22:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-13 23:22:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-13 23:22:51,271 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-13 23:22:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-13 23:22:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-13 23:22:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-13 23:22:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-13 23:22:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-13 23:22:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-13 23:22:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-13 23:22:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-13 23:22:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-13 23:22:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-13 23:22:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 23:22:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-13 23:22:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-13 23:22:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-13 23:22:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-13 23:22:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 23:22:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-13 23:22:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-13 23:22:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-13 23:22:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-13 23:22:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-13 23:22:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-13 23:22:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-13 23:22:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-13 23:22:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-13 23:22:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-13 23:22:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-13 23:22:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-13 23:22:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-13 23:22:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 23:22:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-13 23:22:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-13 23:22:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-13 23:22:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-13 23:22:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-13 23:22:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-13 23:22:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-13 23:22:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-13 23:22:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-13 23:22:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-13 23:22:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-13 23:22:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-13 23:22:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-13 23:22:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2022-07-13 23:22:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2022-07-13 23:22:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-13 23:22:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-13 23:22:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-13 23:22:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-13 23:22:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-13 23:22:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-13 23:22:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-13 23:22:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-13 23:22:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-13 23:22:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-13 23:22:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-13 23:22:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-13 23:22:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-13 23:22:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-13 23:22:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-13 23:22:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-13 23:22:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-13 23:22:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-13 23:22:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-13 23:22:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-13 23:22:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-13 23:22:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-13 23:22:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-13 23:22:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 23:22:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 23:22:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-13 23:22:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-13 23:22:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-13 23:22:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-13 23:22:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-13 23:22:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-13 23:22:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-13 23:22:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-13 23:22:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-13 23:22:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-13 23:22:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-13 23:22:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-13 23:22:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-13 23:22:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-13 23:22:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-13 23:22:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-13 23:22:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-13 23:22:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2022-07-13 23:22:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2022-07-13 23:22:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-13 23:22:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-13 23:22:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 23:22:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 23:22:52,391 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 23:22:52,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 23:23:32,781 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 23:23:32,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 23:23:32,816 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 23:23:32,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:23:32 BoogieIcfgContainer [2022-07-13 23:23:32,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 23:23:32,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 23:23:32,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 23:23:32,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 23:23:32,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 11:22:46" (1/3) ... [2022-07-13 23:23:32,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3238ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:23:32, skipping insertion in model container [2022-07-13 23:23:32,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 11:22:50" (2/3) ... [2022-07-13 23:23:32,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3238ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:23:32, skipping insertion in model container [2022-07-13 23:23:32,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:23:32" (3/3) ... [2022-07-13 23:23:32,829 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2022-07-13 23:23:32,839 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 23:23:32,839 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 23:23:32,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 23:23:32,950 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@2b281cb6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6a6aca7d [2022-07-13 23:23:32,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 23:23:32,967 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) [2022-07-13 23:23:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 23:23:32,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:23:32,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:23:32,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:23:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:23:32,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736919, now seen corresponding path program 1 times [2022-07-13 23:23:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:23:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668543287] [2022-07-13 23:23:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:23:32,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:23:32,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:23:32,994 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) [2022-07-13 23:23:32,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 23:23:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:23:40,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 4873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:23:40,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:23:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:23:40,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:23:40,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:23:40,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668543287] [2022-07-13 23:23:40,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668543287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:23:40,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:23:40,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:23:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636618306] [2022-07-13 23:23:40,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:23:40,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:23:40,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:23:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:23:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:23:40,243 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) [2022-07-13 23:23:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:23:40,905 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2022-07-13 23:23:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:23:40,907 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 [2022-07-13 23:23:40,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:23:40,971 INFO L225 Difference]: With dead ends: 10596 [2022-07-13 23:23:40,971 INFO L226 Difference]: Without dead ends: 5294 [2022-07-13 23:23:41,033 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 [2022-07-13 23:23:41,037 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 [2022-07-13 23:23:41,038 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] [2022-07-13 23:23:41,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-07-13 23:23:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2022-07-13 23:23:41,796 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) [2022-07-13 23:23:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2022-07-13 23:23:41,860 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2022-07-13 23:23:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:23:41,860 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2022-07-13 23:23:41,860 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) [2022-07-13 23:23:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2022-07-13 23:23:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 23:23:41,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:23:41,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:23:41,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 23:23:42,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:23:42,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:23:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:23:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -138225563, now seen corresponding path program 1 times [2022-07-13 23:23:42,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:23:42,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785401179] [2022-07-13 23:23:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:23:42,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:23:42,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:23:42,093 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) [2022-07-13 23:23:42,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 23:23:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:23:49,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:23:49,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:23:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:23:49,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:23:49,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:23:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785401179] [2022-07-13 23:23:49,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785401179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:23:49,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:23:49,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:23:49,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981355582] [2022-07-13 23:23:49,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:23:49,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:23:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:23:49,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:23:49,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:23:49,326 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) [2022-07-13 23:23:50,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:23:50,020 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2022-07-13 23:23:50,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:23:50,020 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 [2022-07-13 23:23:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:23:50,075 INFO L225 Difference]: With dead ends: 10658 [2022-07-13 23:23:50,075 INFO L226 Difference]: Without dead ends: 5367 [2022-07-13 23:23:50,136 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 [2022-07-13 23:23:50,138 INFO L413 NwaCegarLoop]: 8640 mSDtfsCounter, 8370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9007 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 23:23:50,139 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] [2022-07-13 23:23:50,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2022-07-13 23:23:50,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2022-07-13 23:23:50,893 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) [2022-07-13 23:23:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2022-07-13 23:23:50,932 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2022-07-13 23:23:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:23:50,933 INFO L495 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2022-07-13 23:23:50,935 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) [2022-07-13 23:23:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2022-07-13 23:23:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 23:23:50,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:23:50,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:23:51,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 23:23:51,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:23:51,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:23:51,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:23:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash 7484506, now seen corresponding path program 1 times [2022-07-13 23:23:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:23:51,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763220835] [2022-07-13 23:23:51,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:23:51,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:23:51,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:23:51,149 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) [2022-07-13 23:23:51,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 23:23:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:23:58,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 4875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:23:58,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:23:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:23:58,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:23:58,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:23:58,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763220835] [2022-07-13 23:23:58,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763220835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:23:58,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:23:58,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:23:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647665417] [2022-07-13 23:23:58,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:23:58,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:23:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:23:58,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:23:58,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:23:58,656 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) [2022-07-13 23:23:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:23:59,092 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2022-07-13 23:23:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:23:59,093 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 [2022-07-13 23:23:59,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:23:59,133 INFO L225 Difference]: With dead ends: 5366 [2022-07-13 23:23:59,134 INFO L226 Difference]: Without dead ends: 5363 [2022-07-13 23:23:59,141 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 [2022-07-13 23:23:59,143 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 [2022-07-13 23:23:59,144 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] [2022-07-13 23:23:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2022-07-13 23:23:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2022-07-13 23:23:59,868 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) [2022-07-13 23:23:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2022-07-13 23:23:59,898 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2022-07-13 23:23:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:23:59,898 INFO L495 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2022-07-13 23:23:59,899 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) [2022-07-13 23:23:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2022-07-13 23:23:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 23:23:59,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:23:59,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:24:00,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-13 23:24:00,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:00,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash 229534216, now seen corresponding path program 1 times [2022-07-13 23:24:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:00,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306433261] [2022-07-13 23:24:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:00,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:00,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:00,125 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) [2022-07-13 23:24:00,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 23:24:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:24:07,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 4876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:24:07,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:24:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:24:07,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:24:07,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:24:07,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306433261] [2022-07-13 23:24:07,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306433261] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:24:07,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:24:07,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:24:07,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035096715] [2022-07-13 23:24:07,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:24:07,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:24:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:24:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:24:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:24:07,777 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) [2022-07-13 23:24:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:24:08,206 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2022-07-13 23:24:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:24:08,207 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 [2022-07-13 23:24:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:24:08,248 INFO L225 Difference]: With dead ends: 5365 [2022-07-13 23:24:08,249 INFO L226 Difference]: Without dead ends: 5362 [2022-07-13 23:24:08,256 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 [2022-07-13 23:24:08,257 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 [2022-07-13 23:24:08,258 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] [2022-07-13 23:24:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2022-07-13 23:24:08,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2022-07-13 23:24:08,927 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) [2022-07-13 23:24:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2022-07-13 23:24:08,963 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2022-07-13 23:24:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:24:08,963 INFO L495 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2022-07-13 23:24:08,963 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) [2022-07-13 23:24:08,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2022-07-13 23:24:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 23:24:08,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:24:08,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:24:09,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-13 23:24:09,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:09,171 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854499, now seen corresponding path program 1 times [2022-07-13 23:24:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:09,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226355653] [2022-07-13 23:24:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:09,179 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:09,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:09,181 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) [2022-07-13 23:24:09,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-13 23:24:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:24:16,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 4877 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:24:16,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:24:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:24:17,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:24:17,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:24:17,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226355653] [2022-07-13 23:24:17,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226355653] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:24:17,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:24:17,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:24:17,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699264255] [2022-07-13 23:24:17,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:24:17,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:24:17,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:24:17,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:24:17,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:24:17,007 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) [2022-07-13 23:24:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:24:17,512 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2022-07-13 23:24:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:24:17,513 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 [2022-07-13 23:24:17,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:24:17,562 INFO L225 Difference]: With dead ends: 5364 [2022-07-13 23:24:17,562 INFO L226 Difference]: Without dead ends: 5361 [2022-07-13 23:24:17,568 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 [2022-07-13 23:24:17,569 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 [2022-07-13 23:24:17,570 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] [2022-07-13 23:24:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-07-13 23:24:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2022-07-13 23:24:18,105 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) [2022-07-13 23:24:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2022-07-13 23:24:18,133 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2022-07-13 23:24:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:24:18,133 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2022-07-13 23:24:18,133 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) [2022-07-13 23:24:18,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2022-07-13 23:24:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 23:24:18,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:24:18,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 23:24:18,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-13 23:24:18,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:18,352 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:18,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675051, now seen corresponding path program 1 times [2022-07-13 23:24:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:18,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688344093] [2022-07-13 23:24:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:18,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:18,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:18,359 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) [2022-07-13 23:24:18,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-13 23:24:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:24:26,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 4878 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 23:24:26,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:24:26,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:24:26,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:24:26,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:24:26,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688344093] [2022-07-13 23:24:26,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688344093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:24:26,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:24:26,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:24:26,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464268830] [2022-07-13 23:24:26,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:24:26,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:24:26,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:24:26,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:24:26,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:24:26,314 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) [2022-07-13 23:24:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:24:27,043 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2022-07-13 23:24:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:24:27,043 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 [2022-07-13 23:24:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:24:27,140 INFO L225 Difference]: With dead ends: 16061 [2022-07-13 23:24:27,140 INFO L226 Difference]: Without dead ends: 10697 [2022-07-13 23:24:27,192 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 [2022-07-13 23:24:27,194 INFO L413 NwaCegarLoop]: 10012 mSDtfsCounter, 8649 mSDsluCounter, 8651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 23:24:27,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8649 Valid, 18663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 23:24:27,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-07-13 23:24:28,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2022-07-13 23:24:28,401 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) [2022-07-13 23:24:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2022-07-13 23:24:28,466 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2022-07-13 23:24:28,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:24:28,466 INFO L495 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2022-07-13 23:24:28,469 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) [2022-07-13 23:24:28,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2022-07-13 23:24:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 23:24:28,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:24:28,481 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] [2022-07-13 23:24:28,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-13 23:24:28,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:28,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:28,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1570930916, now seen corresponding path program 1 times [2022-07-13 23:24:28,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:28,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368181879] [2022-07-13 23:24:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:28,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:28,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:28,707 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) [2022-07-13 23:24:28,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-13 23:24:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:24:36,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 23:24:36,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:24:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 23:24:36,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:24:36,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:24:36,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368181879] [2022-07-13 23:24:36,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368181879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:24:36,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:24:36,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:24:36,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587432227] [2022-07-13 23:24:36,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:24:36,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:24:36,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:24:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:24:36,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:24:36,790 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) [2022-07-13 23:24:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:24:37,536 INFO L93 Difference]: Finished difference Result 21480 states and 35292 transitions. [2022-07-13 23:24:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:24:37,537 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 [2022-07-13 23:24:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:24:37,607 INFO L225 Difference]: With dead ends: 21480 [2022-07-13 23:24:37,607 INFO L226 Difference]: Without dead ends: 10795 [2022-07-13 23:24:37,691 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 [2022-07-13 23:24:37,692 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 [2022-07-13 23:24:37,692 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] [2022-07-13 23:24:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-07-13 23:24:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 10793. [2022-07-13 23:24:38,895 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) [2022-07-13 23:24:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10793 states to 10793 states and 17684 transitions. [2022-07-13 23:24:38,962 INFO L78 Accepts]: Start accepts. Automaton has 10793 states and 17684 transitions. Word has length 69 [2022-07-13 23:24:38,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:24:38,962 INFO L495 AbstractCegarLoop]: Abstraction has 10793 states and 17684 transitions. [2022-07-13 23:24:38,962 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) [2022-07-13 23:24:38,962 INFO L276 IsEmpty]: Start isEmpty. Operand 10793 states and 17684 transitions. [2022-07-13 23:24:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 23:24:38,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:24:38,969 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] [2022-07-13 23:24:39,183 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-13 23:24:39,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-13 23:24:39,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:39,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:39,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:39,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1925660316, now seen corresponding path program 1 times [2022-07-13 23:24:39,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:39,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54591220] [2022-07-13 23:24:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:39,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:39,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:39,207 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) [2022-07-13 23:24:39,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-13 23:24:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:24:49,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 5393 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 23:24:49,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:24:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 23:24:49,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:24:49,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:24:49,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54591220] [2022-07-13 23:24:49,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54591220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:24:49,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:24:49,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:24:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573750868] [2022-07-13 23:24:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:24:49,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 23:24:49,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:24:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 23:24:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 23:24:49,122 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) [2022-07-13 23:24:50,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:24:51,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:24:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:24:52,431 INFO L93 Difference]: Finished difference Result 21587 states and 37177 transitions. [2022-07-13 23:24:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 23:24:52,432 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 [2022-07-13 23:24:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:24:52,525 INFO L225 Difference]: With dead ends: 21587 [2022-07-13 23:24:52,525 INFO L226 Difference]: Without dead ends: 10797 [2022-07-13 23:24:52,709 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 [2022-07-13 23:24:52,710 INFO L413 NwaCegarLoop]: 8629 mSDtfsCounter, 0 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17254 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-13 23:24:52,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-13 23:24:52,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2022-07-13 23:24:54,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10797. [2022-07-13 23:24:54,204 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) [2022-07-13 23:24:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 17688 transitions. [2022-07-13 23:24:54,470 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 17688 transitions. Word has length 78 [2022-07-13 23:24:54,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:24:54,473 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 17688 transitions. [2022-07-13 23:24:54,473 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) [2022-07-13 23:24:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 17688 transitions. [2022-07-13 23:24:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 23:24:54,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:24:54,480 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] [2022-07-13 23:24:54,703 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-13 23:24:54,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-13 23:24:54,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:24:54,765 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:24:54,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:24:54,766 INFO L85 PathProgramCache]: Analyzing trace with hash 883786493, now seen corresponding path program 1 times [2022-07-13 23:24:54,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:24:54,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444934927] [2022-07-13 23:24:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:24:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:24:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:24:54,790 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) [2022-07-13 23:24:54,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-13 23:25:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:25:06,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 5479 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 23:25:06,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:25:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 23:25:06,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:25:06,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:25:06,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444934927] [2022-07-13 23:25:06,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444934927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:25:06,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:25:06,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 23:25:06,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112601608] [2022-07-13 23:25:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:25:06,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:25:06,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:25:06,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:25:06,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:25:06,196 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) [2022-07-13 23:25:08,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:25:10,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:25:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:25:10,692 INFO L93 Difference]: Finished difference Result 21595 states and 37185 transitions. [2022-07-13 23:25:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 23:25:10,694 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 [2022-07-13 23:25:10,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:25:10,773 INFO L225 Difference]: With dead ends: 21595 [2022-07-13 23:25:10,773 INFO L226 Difference]: Without dead ends: 10801 [2022-07-13 23:25:10,886 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 [2022-07-13 23:25:10,888 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 [2022-07-13 23:25:10,889 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] [2022-07-13 23:25:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-07-13 23:25:12,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 10801. [2022-07-13 23:25:12,071 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) [2022-07-13 23:25:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10801 states to 10801 states and 17692 transitions. [2022-07-13 23:25:12,162 INFO L78 Accepts]: Start accepts. Automaton has 10801 states and 17692 transitions. Word has length 79 [2022-07-13 23:25:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:25:12,163 INFO L495 AbstractCegarLoop]: Abstraction has 10801 states and 17692 transitions. [2022-07-13 23:25:12,163 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) [2022-07-13 23:25:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 10801 states and 17692 transitions. [2022-07-13 23:25:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 23:25:12,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:25:12,169 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] [2022-07-13 23:25:12,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-13 23:25:12,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:25:12,387 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:25:12,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:25:12,388 INFO L85 PathProgramCache]: Analyzing trace with hash -636827019, now seen corresponding path program 1 times [2022-07-13 23:25:12,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:25:12,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992419727] [2022-07-13 23:25:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:25:12,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:25:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:25:12,404 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) [2022-07-13 23:25:12,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-13 23:25:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:25:23,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 5489 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 23:25:23,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:25:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 23:25:23,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:25:23,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:25:23,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992419727] [2022-07-13 23:25:23,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992419727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:25:23,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:25:23,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:25:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017006182] [2022-07-13 23:25:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:25:23,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:25:23,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:25:23,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:25:23,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:25:23,370 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) [2022-07-13 23:25:25,392 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 [] [2022-07-13 23:25:30,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:25:30,173 INFO L93 Difference]: Finished difference Result 21641 states and 37277 transitions. [2022-07-13 23:25:30,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:25:30,174 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 [2022-07-13 23:25:30,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:25:30,248 INFO L225 Difference]: With dead ends: 21641 [2022-07-13 23:25:30,248 INFO L226 Difference]: Without dead ends: 10843 [2022-07-13 23:25:30,323 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 [2022-07-13 23:25:30,324 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 11 mSDsluCounter, 33763 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42404 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-13 23:25:30,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42404 Invalid, 807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-13 23:25:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-07-13 23:25:32,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 10817. [2022-07-13 23:25:32,637 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) [2022-07-13 23:25:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 19255 transitions. [2022-07-13 23:25:32,716 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 19255 transitions. Word has length 80 [2022-07-13 23:25:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:25:32,716 INFO L495 AbstractCegarLoop]: Abstraction has 10817 states and 19255 transitions. [2022-07-13 23:25:32,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-13 23:25:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 19255 transitions. [2022-07-13 23:25:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 23:25:32,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:25:32,721 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] [2022-07-13 23:25:32,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-13 23:25:32,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:25:32,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:25:32,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:25:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1163497930, now seen corresponding path program 1 times [2022-07-13 23:25:32,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:25:32,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143549448] [2022-07-13 23:25:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:25:32,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:25:32,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:25:32,942 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) [2022-07-13 23:25:32,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-13 23:25:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:25:43,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 5492 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 23:25:43,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:25:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 23:25:43,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:25:43,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:25:43,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143549448] [2022-07-13 23:25:43,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143549448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:25:43,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:25:43,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 23:25:43,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552082348] [2022-07-13 23:25:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:25:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 23:25:43,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:25:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 23:25:43,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 23:25:43,367 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) [2022-07-13 23:25:45,387 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 [] [2022-07-13 23:25:50,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:25:50,051 INFO L93 Difference]: Finished difference Result 21665 states and 38848 transitions. [2022-07-13 23:25:50,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 23:25:50,052 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 [2022-07-13 23:25:50,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:25:50,129 INFO L225 Difference]: With dead ends: 21665 [2022-07-13 23:25:50,130 INFO L226 Difference]: Without dead ends: 10851 [2022-07-13 23:25:50,217 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 [2022-07-13 23:25:50,218 INFO L413 NwaCegarLoop]: 8632 mSDtfsCounter, 11 mSDsluCounter, 33731 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42363 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-13 23:25:50,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42363 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 805 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-13 23:25:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2022-07-13 23:25:52,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10821. [2022-07-13 23:25:52,597 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) [2022-07-13 23:25:52,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 19259 transitions. [2022-07-13 23:25:52,664 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 19259 transitions. Word has length 80 [2022-07-13 23:25:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:25:52,665 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 19259 transitions. [2022-07-13 23:25:52,665 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) [2022-07-13 23:25:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 19259 transitions. [2022-07-13 23:25:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 23:25:52,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:25:52,670 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] [2022-07-13 23:25:52,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-13 23:25:52,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:25:52,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:25:52,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:25:52,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1403609912, now seen corresponding path program 1 times [2022-07-13 23:25:52,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:25:52,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560918205] [2022-07-13 23:25:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:25:52,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:25:52,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:25:52,895 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) [2022-07-13 23:25:52,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-13 23:26:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:26:04,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 5484 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 23:26:04,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:26:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 23:26:04,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:26:04,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:26:04,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560918205] [2022-07-13 23:26:04,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560918205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:26:04,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:26:04,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 23:26:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28812994] [2022-07-13 23:26:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:26:04,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 23:26:04,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:26:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 23:26:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 23:26:04,286 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) [2022-07-13 23:26:04,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:26:04,689 INFO L93 Difference]: Finished difference Result 11081 states and 19803 transitions. [2022-07-13 23:26:04,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:26:04,689 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 [2022-07-13 23:26:04,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:26:04,751 INFO L225 Difference]: With dead ends: 11081 [2022-07-13 23:26:04,751 INFO L226 Difference]: Without dead ends: 11074 [2022-07-13 23:26:04,766 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 [2022-07-13 23:26:04,767 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 [2022-07-13 23:26:04,767 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] [2022-07-13 23:26:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-07-13 23:26:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 10827. [2022-07-13 23:26:07,030 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) [2022-07-13 23:26:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10827 states to 10827 states and 19288 transitions. [2022-07-13 23:26:07,097 INFO L78 Accepts]: Start accepts. Automaton has 10827 states and 19288 transitions. Word has length 82 [2022-07-13 23:26:07,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:26:07,097 INFO L495 AbstractCegarLoop]: Abstraction has 10827 states and 19288 transitions. [2022-07-13 23:26:07,097 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) [2022-07-13 23:26:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10827 states and 19288 transitions. [2022-07-13 23:26:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-13 23:26:07,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:26:07,102 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] [2022-07-13 23:26:07,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-13 23:26:07,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:26:07,307 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:26:07,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:26:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash -768326530, now seen corresponding path program 1 times [2022-07-13 23:26:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:26:07,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342751295] [2022-07-13 23:26:07,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:26:07,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:26:07,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:26:07,314 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) [2022-07-13 23:26:07,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-13 23:26:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 23:26:15,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 5468 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 23:26:15,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 23:26:16,571 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-13 23:26:16,571 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 [2022-07-13 23:26:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 23:26:16,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 23:26:16,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 23:26:16,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342751295] [2022-07-13 23:26:16,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342751295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 23:26:16,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 23:26:16,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 23:26:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018024849] [2022-07-13 23:26:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 23:26:16,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 23:26:16,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 23:26:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 23:26:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 23:26:16,611 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) [2022-07-13 23:26:19,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:26:21,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:26:23,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:26:26,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:26:40,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 23:26:44,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 23:26:44,992 INFO L93 Difference]: Finished difference Result 21825 states and 38883 transitions. [2022-07-13 23:26:44,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 23:26:44,993 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 [2022-07-13 23:26:44,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 23:26:45,057 INFO L225 Difference]: With dead ends: 21825 [2022-07-13 23:26:45,058 INFO L226 Difference]: Without dead ends: 11001 [2022-07-13 23:26:45,118 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 [2022-07-13 23:26:45,118 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 204 mSDsluCounter, 15794 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 24446 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-07-13 23:26:45,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 24446 Invalid, 1576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1567 Invalid, 4 Unknown, 0 Unchecked, 27.7s Time] [2022-07-13 23:26:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-07-13 23:26:47,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10948. [2022-07-13 23:26:47,377 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) [2022-07-13 23:26:47,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10948 states to 10948 states and 19472 transitions. [2022-07-13 23:26:47,527 INFO L78 Accepts]: Start accepts. Automaton has 10948 states and 19472 transitions. Word has length 76 [2022-07-13 23:26:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 23:26:47,528 INFO L495 AbstractCegarLoop]: Abstraction has 10948 states and 19472 transitions. [2022-07-13 23:26:47,528 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) [2022-07-13 23:26:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10948 states and 19472 transitions. [2022-07-13 23:26:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-13 23:26:47,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 23:26:47,537 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] [2022-07-13 23:26:47,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-13 23:26:47,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 23:26:47,752 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 23:26:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 23:26:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash 636354924, now seen corresponding path program 1 times [2022-07-13 23:26:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 23:26:47,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730520676] [2022-07-13 23:26:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 23:26:47,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 23:26:47,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 23:26:47,758 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) [2022-07-13 23:26:47,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process