./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 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/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 11:03:42,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 11:03:42,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 11:03:42,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 11:03:42,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 11:03:42,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 11:03:42,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 11:03:42,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 11:03:42,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 11:03:42,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 11:03:42,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 11:03:42,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 11:03:42,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 11:03:42,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 11:03:42,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 11:03:42,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 11:03:42,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 11:03:42,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 11:03:42,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 11:03:42,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 11:03:42,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 11:03:42,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 11:03:42,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 11:03:42,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 11:03:42,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 11:03:42,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 11:03:42,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 11:03:42,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 11:03:42,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 11:03:42,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 11:03:42,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 11:03:42,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 11:03:42,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 11:03:42,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 11:03:42,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 11:03:42,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 11:03:42,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 11:03:42,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 11:03:42,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 11:03:42,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 11:03:42,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 11:03:42,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 11:03:42,220 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 11:03:42,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 11:03:42,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 11:03:42,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 11:03:42,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 11:03:42,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 11:03:42,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 11:03:42,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 11:03:42,223 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 11:03:42,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 11:03:42,224 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 11:03:42,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 11:03:42,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 11:03:42,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 11:03:42,226 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 11:03:42,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 11:03:42,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 11:03:42,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 11:03:42,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 11:03:42,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:03:42,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 11:03:42,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 11:03:42,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 11:03:42,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 11:03:42,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 11:03:42,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 11:03:42,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 11:03:42,229 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 11:03:42,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 11:03:42,229 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 11:03:42,229 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 [2023-02-15 11:03:42,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 11:03:42,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 11:03:42,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 11:03:42,504 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 11:03:42,504 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 11:03:42,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2023-02-15 11:03:43,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 11:03:43,882 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 11:03:43,882 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2023-02-15 11:03:43,892 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfe4c5aca/51fd45bd4b1e42f89b5591ec1c72a43d/FLAGa9ff21212 [2023-02-15 11:03:44,207 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfe4c5aca/51fd45bd4b1e42f89b5591ec1c72a43d [2023-02-15 11:03:44,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 11:03:44,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 11:03:44,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 11:03:44,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 11:03:44,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 11:03:44,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29df0fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44, skipping insertion in model container [2023-02-15 11:03:44,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 11:03:44,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 11:03:44,439 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2023-02-15 11:03:44,447 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2023-02-15 11:03:44,460 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2023-02-15 11:03:44,462 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2023-02-15 11:03:44,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2023-02-15 11:03:44,466 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2023-02-15 11:03:44,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2023-02-15 11:03:44,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2023-02-15 11:03:44,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2023-02-15 11:03:44,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2023-02-15 11:03:44,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2023-02-15 11:03:44,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2023-02-15 11:03:44,529 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2023-02-15 11:03:44,530 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2023-02-15 11:03:44,532 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2023-02-15 11:03:44,537 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2023-02-15 11:03:44,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:03:44,556 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 11:03:44,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2023-02-15 11:03:44,578 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2023-02-15 11:03:44,589 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2023-02-15 11:03:44,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2023-02-15 11:03:44,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2023-02-15 11:03:44,600 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2023-02-15 11:03:44,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2023-02-15 11:03:44,606 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2023-02-15 11:03:44,607 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2023-02-15 11:03:44,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2023-02-15 11:03:44,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2023-02-15 11:03:44,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2023-02-15 11:03:44,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2023-02-15 11:03:44,657 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2023-02-15 11:03:44,659 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2023-02-15 11:03:44,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2023-02-15 11:03:44,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:03:44,681 INFO L208 MainTranslator]: Completed translation [2023-02-15 11:03:44,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44 WrapperNode [2023-02-15 11:03:44,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 11:03:44,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 11:03:44,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 11:03:44,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 11:03:44,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,762 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 590 [2023-02-15 11:03:44,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 11:03:44,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 11:03:44,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 11:03:44,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 11:03:44,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,820 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 11:03:44,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 11:03:44,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 11:03:44,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 11:03:44,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (1/1) ... [2023-02-15 11:03:44,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:03:44,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 11:03:44,859 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) [2023-02-15 11:03:44,865 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 [2023-02-15 11:03:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 11:03:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 11:03:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 11:03:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 11:03:44,983 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 11:03:44,985 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 11:03:45,408 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 11:03:45,414 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 11:03:45,415 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 11:03:45,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:03:45 BoogieIcfgContainer [2023-02-15 11:03:45,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 11:03:45,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 11:03:45,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 11:03:45,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 11:03:45,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:03:44" (1/3) ... [2023-02-15 11:03:45,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338bcfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:03:45, skipping insertion in model container [2023-02-15 11:03:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:03:44" (2/3) ... [2023-02-15 11:03:45,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338bcfff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:03:45, skipping insertion in model container [2023-02-15 11:03:45,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:03:45" (3/3) ... [2023-02-15 11:03:45,424 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2023-02-15 11:03:45,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 11:03:45,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-02-15 11:03:45,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 11:03:45,490 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4975f698, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 11:03:45,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-02-15 11:03:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 11:03:45,502 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:45,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:45,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2023-02-15 11:03:45,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355628330] [2023-02-15 11:03:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:45,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:45,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:45,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355628330] [2023-02-15 11:03:45,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355628330] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:45,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:45,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:03:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880029302] [2023-02-15 11:03:45,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:45,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:03:45,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:45,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:03:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:03:45,872 INFO L87 Difference]: Start difference. First operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:46,101 INFO L93 Difference]: Finished difference Result 131 states and 205 transitions. [2023-02-15 11:03:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:03:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 11:03:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:46,113 INFO L225 Difference]: With dead ends: 131 [2023-02-15 11:03:46,113 INFO L226 Difference]: Without dead ends: 114 [2023-02-15 11:03:46,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:46,120 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 160 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:46,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 175 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 11:03:46,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-02-15 11:03:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-02-15 11:03:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2023-02-15 11:03:46,170 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2023-02-15 11:03:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:46,171 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2023-02-15 11:03:46,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2023-02-15 11:03:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 11:03:46,172 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:46,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:46,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 11:03:46,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash 118401710, now seen corresponding path program 1 times [2023-02-15 11:03:46,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:46,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825498905] [2023-02-15 11:03:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:46,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:46,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825498905] [2023-02-15 11:03:46,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825498905] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:46,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:46,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:03:46,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114970916] [2023-02-15 11:03:46,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:46,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:03:46,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:46,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:03:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:46,293 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:46,425 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2023-02-15 11:03:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:03:46,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 11:03:46,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:46,430 INFO L225 Difference]: With dead ends: 114 [2023-02-15 11:03:46,430 INFO L226 Difference]: Without dead ends: 109 [2023-02-15 11:03:46,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:46,432 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 32 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:46,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 268 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-02-15 11:03:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-02-15 11:03:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.2736842105263158) internal successors, (121), 108 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2023-02-15 11:03:46,454 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2023-02-15 11:03:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:46,454 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2023-02-15 11:03:46,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2023-02-15 11:03:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 11:03:46,455 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:46,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:46,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 11:03:46,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash -639549266, now seen corresponding path program 1 times [2023-02-15 11:03:46,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:46,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957119751] [2023-02-15 11:03:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:46,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:46,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:46,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957119751] [2023-02-15 11:03:46,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957119751] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:46,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:46,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:03:46,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238154349] [2023-02-15 11:03:46,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:46,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:03:46,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:46,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:03:46,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:46,560 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:46,731 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2023-02-15 11:03:46,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 11:03:46,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:46,733 INFO L225 Difference]: With dead ends: 109 [2023-02-15 11:03:46,733 INFO L226 Difference]: Without dead ends: 107 [2023-02-15 11:03:46,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:46,734 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:46,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 101 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 11:03:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-02-15 11:03:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-02-15 11:03:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 106 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2023-02-15 11:03:46,750 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2023-02-15 11:03:46,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:46,751 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2023-02-15 11:03:46,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2023-02-15 11:03:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 11:03:46,752 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:46,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:46,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 11:03:46,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1648813321, now seen corresponding path program 1 times [2023-02-15 11:03:46,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:46,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587738689] [2023-02-15 11:03:46,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:46,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:46,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:46,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587738689] [2023-02-15 11:03:46,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587738689] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:46,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:46,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:03:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895652713] [2023-02-15 11:03:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:46,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:03:46,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:03:46,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:03:46,860 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:46,949 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2023-02-15 11:03:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:03:46,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 11:03:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:46,950 INFO L225 Difference]: With dead ends: 107 [2023-02-15 11:03:46,950 INFO L226 Difference]: Without dead ends: 103 [2023-02-15 11:03:46,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:46,951 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 11 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:46,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 242 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-02-15 11:03:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-02-15 11:03:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 102 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2023-02-15 11:03:46,956 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2023-02-15 11:03:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:46,957 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2023-02-15 11:03:46,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2023-02-15 11:03:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 11:03:46,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:46,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:46,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 11:03:46,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:46,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash -411248735, now seen corresponding path program 1 times [2023-02-15 11:03:46,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:46,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50548358] [2023-02-15 11:03:46,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:46,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:47,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:47,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50548358] [2023-02-15 11:03:47,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50548358] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:47,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:47,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:03:47,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000274480] [2023-02-15 11:03:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:03:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:47,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:03:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:47,012 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:47,171 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2023-02-15 11:03:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 11:03:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:47,172 INFO L225 Difference]: With dead ends: 121 [2023-02-15 11:03:47,173 INFO L226 Difference]: Without dead ends: 119 [2023-02-15 11:03:47,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:47,174 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 112 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:47,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 111 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-02-15 11:03:47,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2023-02-15 11:03:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 100 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2023-02-15 11:03:47,179 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2023-02-15 11:03:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:47,179 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2023-02-15 11:03:47,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2023-02-15 11:03:47,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 11:03:47,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:47,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:47,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 11:03:47,181 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash -409524831, now seen corresponding path program 1 times [2023-02-15 11:03:47,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:47,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943070877] [2023-02-15 11:03:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:47,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:47,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:47,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943070877] [2023-02-15 11:03:47,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943070877] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:47,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:47,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:03:47,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140032069] [2023-02-15 11:03:47,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:47,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:03:47,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:03:47,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:47,231 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:47,369 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2023-02-15 11:03:47,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:47,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 11:03:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:47,370 INFO L225 Difference]: With dead ends: 101 [2023-02-15 11:03:47,370 INFO L226 Difference]: Without dead ends: 99 [2023-02-15 11:03:47,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:47,371 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 83 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:47,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 83 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-15 11:03:47,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-02-15 11:03:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.247191011235955) internal successors, (111), 98 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2023-02-15 11:03:47,375 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2023-02-15 11:03:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:47,376 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2023-02-15 11:03:47,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2023-02-15 11:03:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 11:03:47,377 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:47,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:47,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 11:03:47,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:47,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash 136195212, now seen corresponding path program 1 times [2023-02-15 11:03:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:47,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405373539] [2023-02-15 11:03:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:47,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:47,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405373539] [2023-02-15 11:03:47,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405373539] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:47,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:47,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931552164] [2023-02-15 11:03:47,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:47,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:47,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:47,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:47,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:47,511 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:47,708 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2023-02-15 11:03:47,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 11:03:47,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 11:03:47,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:47,710 INFO L225 Difference]: With dead ends: 136 [2023-02-15 11:03:47,710 INFO L226 Difference]: Without dead ends: 134 [2023-02-15 11:03:47,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:03:47,711 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 47 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:47,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 296 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 11:03:47,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-02-15 11:03:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2023-02-15 11:03:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2023-02-15 11:03:47,724 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 14 [2023-02-15 11:03:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:47,724 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2023-02-15 11:03:47,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2023-02-15 11:03:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 11:03:47,726 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:47,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:47,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 11:03:47,727 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:47,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:47,727 INFO L85 PathProgramCache]: Analyzing trace with hash 137742357, now seen corresponding path program 1 times [2023-02-15 11:03:47,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:47,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024905365] [2023-02-15 11:03:47,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:47,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:47,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:47,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024905365] [2023-02-15 11:03:47,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024905365] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:47,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:47,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:03:47,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007446331] [2023-02-15 11:03:47,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:47,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:03:47,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:03:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:47,794 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:47,961 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2023-02-15 11:03:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:47,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 11:03:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:47,962 INFO L225 Difference]: With dead ends: 126 [2023-02-15 11:03:47,962 INFO L226 Difference]: Without dead ends: 124 [2023-02-15 11:03:47,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:47,963 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:47,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 103 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 11:03:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-02-15 11:03:47,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 103. [2023-02-15 11:03:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 102 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2023-02-15 11:03:47,967 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2023-02-15 11:03:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:47,967 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2023-02-15 11:03:47,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2023-02-15 11:03:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 11:03:47,968 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:47,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:47,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 11:03:47,969 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:47,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash 189636292, now seen corresponding path program 1 times [2023-02-15 11:03:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:47,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755362733] [2023-02-15 11:03:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:47,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:48,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:48,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:48,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755362733] [2023-02-15 11:03:48,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755362733] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:48,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:48,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:48,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103337861] [2023-02-15 11:03:48,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:48,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:48,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:48,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:48,087 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:48,259 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2023-02-15 11:03:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 11:03:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 11:03:48,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:48,260 INFO L225 Difference]: With dead ends: 113 [2023-02-15 11:03:48,260 INFO L226 Difference]: Without dead ends: 109 [2023-02-15 11:03:48,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:03:48,261 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 17 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:48,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 245 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 11:03:48,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-02-15 11:03:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2023-02-15 11:03:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 103 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2023-02-15 11:03:48,264 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2023-02-15 11:03:48,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:48,264 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2023-02-15 11:03:48,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2023-02-15 11:03:48,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 11:03:48,265 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:48,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:48,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 11:03:48,265 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:48,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:48,266 INFO L85 PathProgramCache]: Analyzing trace with hash -24950085, now seen corresponding path program 1 times [2023-02-15 11:03:48,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:48,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471297045] [2023-02-15 11:03:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:48,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:48,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:48,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471297045] [2023-02-15 11:03:48,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471297045] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:48,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:48,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:48,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37943240] [2023-02-15 11:03:48,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:48,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:48,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:48,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:48,383 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:48,531 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2023-02-15 11:03:48,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 11:03:48,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-15 11:03:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:48,533 INFO L225 Difference]: With dead ends: 131 [2023-02-15 11:03:48,533 INFO L226 Difference]: Without dead ends: 129 [2023-02-15 11:03:48,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:03:48,534 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 38 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:48,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 274 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:48,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-15 11:03:48,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2023-02-15 11:03:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 106 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2023-02-15 11:03:48,538 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2023-02-15 11:03:48,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:48,538 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2023-02-15 11:03:48,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2023-02-15 11:03:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 11:03:48,539 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:48,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:48,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 11:03:48,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2034707599, now seen corresponding path program 1 times [2023-02-15 11:03:48,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205666952] [2023-02-15 11:03:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:48,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:48,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205666952] [2023-02-15 11:03:48,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205666952] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:48,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:48,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:03:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996753077] [2023-02-15 11:03:48,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:48,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:03:48,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:48,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:03:48,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:03:48,594 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:48,653 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2023-02-15 11:03:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:03:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 11:03:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:48,655 INFO L225 Difference]: With dead ends: 107 [2023-02-15 11:03:48,655 INFO L226 Difference]: Without dead ends: 105 [2023-02-15 11:03:48,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:48,656 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 97 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:48,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 138 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-02-15 11:03:48,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-02-15 11:03:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2023-02-15 11:03:48,660 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2023-02-15 11:03:48,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:48,661 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2023-02-15 11:03:48,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,662 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2023-02-15 11:03:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 11:03:48,664 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:48,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:48,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-15 11:03:48,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1348569745, now seen corresponding path program 1 times [2023-02-15 11:03:48,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:48,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559122934] [2023-02-15 11:03:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:48,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:48,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:48,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559122934] [2023-02-15 11:03:48,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559122934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:48,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:48,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:03:48,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439968413] [2023-02-15 11:03:48,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:48,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:03:48,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:03:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:03:48,704 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:48,796 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2023-02-15 11:03:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:03:48,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 11:03:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:48,797 INFO L225 Difference]: With dead ends: 105 [2023-02-15 11:03:48,797 INFO L226 Difference]: Without dead ends: 101 [2023-02-15 11:03:48,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:03:48,798 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 6 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:48,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 214 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-15 11:03:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-02-15 11:03:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 100 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2023-02-15 11:03:48,802 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2023-02-15 11:03:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:48,803 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2023-02-15 11:03:48,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2023-02-15 11:03:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 11:03:48,804 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:48,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:48,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 11:03:48,804 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:48,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:48,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1418456853, now seen corresponding path program 1 times [2023-02-15 11:03:48,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:48,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026890901] [2023-02-15 11:03:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:48,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:48,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:48,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026890901] [2023-02-15 11:03:48,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026890901] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:48,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:48,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:48,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337673640] [2023-02-15 11:03:48,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:48,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:48,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:48,916 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:49,101 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2023-02-15 11:03:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 11:03:49,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 11:03:49,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:49,102 INFO L225 Difference]: With dead ends: 116 [2023-02-15 11:03:49,102 INFO L226 Difference]: Without dead ends: 114 [2023-02-15 11:03:49,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-15 11:03:49,103 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 155 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:49,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 57 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-02-15 11:03:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2023-02-15 11:03:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 96 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2023-02-15 11:03:49,106 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 18 [2023-02-15 11:03:49,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:49,107 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2023-02-15 11:03:49,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2023-02-15 11:03:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 11:03:49,107 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:49,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:49,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 11:03:49,107 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1471897933, now seen corresponding path program 1 times [2023-02-15 11:03:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:49,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563843017] [2023-02-15 11:03:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:49,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:49,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563843017] [2023-02-15 11:03:49,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563843017] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:49,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:49,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:49,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650228581] [2023-02-15 11:03:49,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:49,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:49,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:49,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:49,232 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:49,396 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2023-02-15 11:03:49,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:49,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 11:03:49,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:49,397 INFO L225 Difference]: With dead ends: 97 [2023-02-15 11:03:49,397 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 11:03:49,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-15 11:03:49,398 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 129 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:49,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 44 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:49,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 11:03:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-02-15 11:03:49,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 92 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2023-02-15 11:03:49,401 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 18 [2023-02-15 11:03:49,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:49,401 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2023-02-15 11:03:49,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,402 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2023-02-15 11:03:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 11:03:49,402 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:49,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:49,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-15 11:03:49,402 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1159129958, now seen corresponding path program 1 times [2023-02-15 11:03:49,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:49,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905718458] [2023-02-15 11:03:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:49,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:49,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:49,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905718458] [2023-02-15 11:03:49,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905718458] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:49,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:49,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 11:03:49,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027039726] [2023-02-15 11:03:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:49,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:03:49,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:49,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:03:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 11:03:49,474 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:49,628 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2023-02-15 11:03:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 11:03:49,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 11:03:49,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:49,629 INFO L225 Difference]: With dead ends: 103 [2023-02-15 11:03:49,629 INFO L226 Difference]: Without dead ends: 54 [2023-02-15 11:03:49,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-15 11:03:49,630 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 135 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:49,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 47 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-15 11:03:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-02-15 11:03:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.08) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2023-02-15 11:03:49,632 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2023-02-15 11:03:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:49,632 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2023-02-15 11:03:49,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2023-02-15 11:03:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-15 11:03:49,633 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:49,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:49,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-15 11:03:49,634 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash 892497877, now seen corresponding path program 1 times [2023-02-15 11:03:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:49,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787376003] [2023-02-15 11:03:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:49,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:49,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787376003] [2023-02-15 11:03:49,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787376003] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:49,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:49,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-02-15 11:03:49,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527555388] [2023-02-15 11:03:49,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:49,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 11:03:49,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:49,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 11:03:49,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 11:03:49,861 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:49,973 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2023-02-15 11:03:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 11:03:49,974 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-02-15 11:03:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:49,974 INFO L225 Difference]: With dead ends: 54 [2023-02-15 11:03:49,974 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 11:03:49,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-02-15 11:03:49,975 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:49,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 29 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:49,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 11:03:49,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-15 11:03:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2023-02-15 11:03:49,978 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2023-02-15 11:03:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:49,978 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2023-02-15 11:03:49,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2023-02-15 11:03:49,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-15 11:03:49,979 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:49,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:49,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-15 11:03:49,980 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash 892513765, now seen corresponding path program 1 times [2023-02-15 11:03:49,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:49,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456626636] [2023-02-15 11:03:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:49,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:50,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:50,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456626636] [2023-02-15 11:03:50,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456626636] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:50,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:50,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-02-15 11:03:50,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388127141] [2023-02-15 11:03:50,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:50,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 11:03:50,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:50,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 11:03:50,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 11:03:50,155 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:50,249 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2023-02-15 11:03:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 11:03:50,250 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-02-15 11:03:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:50,250 INFO L225 Difference]: With dead ends: 59 [2023-02-15 11:03:50,250 INFO L226 Difference]: Without dead ends: 57 [2023-02-15 11:03:50,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-02-15 11:03:50,251 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 42 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:50,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 27 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-15 11:03:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-02-15 11:03:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2023-02-15 11:03:50,254 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2023-02-15 11:03:50,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:50,254 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2023-02-15 11:03:50,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2023-02-15 11:03:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-15 11:03:50,255 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:50,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:50,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-15 11:03:50,255 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1897634854, now seen corresponding path program 1 times [2023-02-15 11:03:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:50,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968138409] [2023-02-15 11:03:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:50,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:50,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968138409] [2023-02-15 11:03:50,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968138409] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:50,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:50,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 11:03:50,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631038068] [2023-02-15 11:03:50,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:50,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 11:03:50,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 11:03:50,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:03:50,627 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:50,693 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2023-02-15 11:03:50,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:03:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-02-15 11:03:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:50,695 INFO L225 Difference]: With dead ends: 50 [2023-02-15 11:03:50,695 INFO L226 Difference]: Without dead ends: 46 [2023-02-15 11:03:50,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-15 11:03:50,696 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 38 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:50,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 14 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:50,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-15 11:03:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-02-15 11:03:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2023-02-15 11:03:50,699 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2023-02-15 11:03:50,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:50,699 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2023-02-15 11:03:50,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:50,699 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2023-02-15 11:03:50,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-15 11:03:50,700 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:03:50,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:50,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-15 11:03:50,701 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2023-02-15 11:03:50,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:03:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1898127398, now seen corresponding path program 1 times [2023-02-15 11:03:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:03:50,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238432955] [2023-02-15 11:03:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:03:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:03:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:03:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:03:51,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:03:51,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238432955] [2023-02-15 11:03:51,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238432955] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:03:51,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:03:51,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 11:03:51,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826190475] [2023-02-15 11:03:51,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:03:51,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 11:03:51,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:03:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 11:03:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:03:51,088 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:03:51,155 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2023-02-15 11:03:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 11:03:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-02-15 11:03:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:03:51,156 INFO L225 Difference]: With dead ends: 50 [2023-02-15 11:03:51,156 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 11:03:51,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-15 11:03:51,157 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 11:03:51,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 11:03:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 11:03:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 11:03:51,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 11:03:51,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-02-15 11:03:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:03:51,159 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 11:03:51,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:03:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 11:03:51,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 11:03:51,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2023-02-15 11:03:51,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2023-02-15 11:03:51,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2023-02-15 11:03:51,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2023-02-15 11:03:51,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2023-02-15 11:03:51,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2023-02-15 11:03:51,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2023-02-15 11:03:51,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2023-02-15 11:03:51,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2023-02-15 11:03:51,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2023-02-15 11:03:51,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2023-02-15 11:03:51,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-15 11:03:51,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 11:03:51,288 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2023-02-15 11:03:51,288 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 229) no Hoare annotation was computed. [2023-02-15 11:03:51,289 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 969) no Hoare annotation was computed. [2023-02-15 11:03:51,289 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 991) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point L581(lines 581 971) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-02-15 11:03:51,290 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 994) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L902 garLoopResultBuilder]: At program point L53(lines 22 1005) the Hoare annotation is: true [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 424) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 242) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 626) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 941) no Hoare annotation was computed. [2023-02-15 11:03:51,291 INFO L895 garLoopResultBuilder]: At program point L863(lines 858 947) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2023-02-15 11:03:51,291 INFO L899 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L665(lines 665 963) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L434(lines 434 985) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 965) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 988) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 492) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L881(lines 881 907) no Hoare annotation was computed. [2023-02-15 11:03:51,292 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L683(lines 683 694) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 288) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L733(lines 733 957) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 234) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 979) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 231) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 959) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 982) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L866(lines 866 946) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 277) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2023-02-15 11:03:51,293 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 560) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L883(line 883) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 762) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 951) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 973) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 943) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L785(lines 785 953) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 976) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 628) no Hoare annotation was computed. [2023-02-15 11:03:51,294 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L819(lines 819 830) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 967) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L895 garLoopResultBuilder]: At program point L93(lines 65 999) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L919(line 919) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L853(lines 853 947) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L143(lines 143 236) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 970) no Hoare annotation was computed. [2023-02-15 11:03:51,295 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 17 1006) the Hoare annotation is: true [2023-02-15 11:03:51,295 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 993) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 696) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L895 garLoopResultBuilder]: At program point L28(lines 26 1000) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 995) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 961) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 354) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2023-02-15 11:03:51,296 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 964) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 56) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 987) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 764) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 285) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 989) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 955) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L411(lines 411 422) no Hoare annotation was computed. [2023-02-15 11:03:51,297 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 958) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 981) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L874(lines 874 945) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 832) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 233) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 999) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 983) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2023-02-15 11:03:51,298 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 949) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L895 garLoopResultBuilder]: At program point L198(lines 132 284) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|))) [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 284) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 952) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 283) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 286) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 975) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 997) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 58) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 977) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L893(lines 893 905) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2023-02-15 11:03:51,299 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 356) no Hoare annotation was computed. [2023-02-15 11:03:51,300 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 558) no Hoare annotation was computed. [2023-02-15 11:03:51,302 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:03:51,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 11:03:51,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:03:51 BoogieIcfgContainer [2023-02-15 11:03:51,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 11:03:51,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 11:03:51,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 11:03:51,317 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 11:03:51,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:03:45" (3/4) ... [2023-02-15 11:03:51,320 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 11:03:51,333 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-15 11:03:51,334 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 11:03:51,334 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 11:03:51,335 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 11:03:51,414 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 11:03:51,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 11:03:51,415 INFO L158 Benchmark]: Toolchain (without parser) took 7205.10ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 120.1MB in the beginning and 141.3MB in the end (delta: -21.3MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,415 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory was 88.5MB in the beginning and 88.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:03:51,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.07ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 97.2MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.30ms. Allocated memory is still 155.2MB. Free memory was 97.2MB in the beginning and 93.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,416 INFO L158 Benchmark]: Boogie Preprocessor took 55.93ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,416 INFO L158 Benchmark]: RCFGBuilder took 591.28ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 62.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,417 INFO L158 Benchmark]: TraceAbstraction took 5897.61ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 62.3MB in the beginning and 149.7MB in the end (delta: -87.4MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,417 INFO L158 Benchmark]: Witness Printer took 97.55ms. Allocated memory is still 188.7MB. Free memory was 149.7MB in the beginning and 141.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 11:03:51,418 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 121.6MB. Free memory was 88.5MB in the beginning and 88.5MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.07ms. Allocated memory is still 155.2MB. Free memory was 120.1MB in the beginning and 97.2MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.30ms. Allocated memory is still 155.2MB. Free memory was 97.2MB in the beginning and 93.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.93ms. Allocated memory is still 155.2MB. Free memory was 93.8MB in the beginning and 91.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.28ms. Allocated memory is still 155.2MB. Free memory was 91.7MB in the beginning and 62.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5897.61ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 62.3MB in the beginning and 149.7MB in the end (delta: -87.4MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 97.55ms. Allocated memory is still 188.7MB. Free memory was 149.7MB in the beginning and 141.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1331 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1331 mSDsluCounter, 2483 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1445 mSDsCounter, 262 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3638 IncrementalHoareTripleChecker+Invalid, 3900 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 262 mSolverCounterUnsat, 1038 mSDtfsCounter, 3638 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 31 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 4541 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 <= main__t && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-15 11:03:51,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE