./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+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 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 15:17:14,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 15:17:14,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 15:17:14,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 15:17:14,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 15:17:14,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 15:17:14,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 15:17:14,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 15:17:14,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 15:17:14,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 15:17:14,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 15:17:14,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 15:17:14,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 15:17:14,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 15:17:14,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 15:17:14,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 15:17:14,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 15:17:14,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 15:17:14,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 15:17:14,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 15:17:14,095 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 15:17:14,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 15:17:14,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 15:17:14,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 15:17:14,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 15:17:14,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 15:17:14,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 15:17:14,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 15:17:14,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 15:17:14,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 15:17:14,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 15:17:14,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 15:17:14,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 15:17:14,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 15:17:14,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 15:17:14,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 15:17:14,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 15:17:14,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 15:17:14,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 15:17:14,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 15:17:14,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 15:17:14,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 15:17:14,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 15:17:14,136 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 15:17:14,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 15:17:14,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 15:17:14,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 15:17:14,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 15:17:14,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 15:17:14,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 15:17:14,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 15:17:14,138 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 15:17:14,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 15:17:14,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 15:17:14,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 15:17:14,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 15:17:14,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 15:17:14,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 15:17:14,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 15:17:14,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 15:17:14,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 15:17:14,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 15:17:14,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:17:14,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 15:17:14,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 15:17:14,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 15:17:14,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 133ba40f5b51c272364c51a4e246bcd97a40cd88b0bcd4bd92df8f8d6bb23a52 [2022-07-22 15:17:14,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 15:17:14,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 15:17:14,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 15:17:14,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 15:17:14,333 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 15:17:14,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-07-22 15:17:14,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40f93132/8165102fe8144d76ba16d1c8827bd438/FLAG4a9525948 [2022-07-22 15:17:14,791 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 15:17:14,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2022-07-22 15:17:14,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40f93132/8165102fe8144d76ba16d1c8827bd438/FLAG4a9525948 [2022-07-22 15:17:14,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c40f93132/8165102fe8144d76ba16d1c8827bd438 [2022-07-22 15:17:14,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 15:17:14,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 15:17:14,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 15:17:14,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 15:17:14,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 15:17:14,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:17:14" (1/1) ... [2022-07-22 15:17:14,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269d6087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:14, skipping insertion in model container [2022-07-22 15:17:14,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:17:14" (1/1) ... [2022-07-22 15:17:14,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 15:17:14,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 15:17:14,971 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-07-22 15:17:14,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-07-22 15:17:14,975 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-07-22 15:17:14,977 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-07-22 15:17:14,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-07-22 15:17:14,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-07-22 15:17:14,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-07-22 15:17:14,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-07-22 15:17:14,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-07-22 15:17:14,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-07-22 15:17:15,000 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-07-22 15:17:15,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-07-22 15:17:15,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-07-22 15:17:15,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-07-22 15:17:15,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-07-22 15:17:15,008 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-07-22 15:17:15,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-07-22 15:17:15,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-07-22 15:17:15,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:17:15,022 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 15:17:15,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1224,1237] [2022-07-22 15:17:15,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1636,1649] [2022-07-22 15:17:15,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[1851,1864] [2022-07-22 15:17:15,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2384,2397] [2022-07-22 15:17:15,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2599,2612] [2022-07-22 15:17:15,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[2901,2914] [2022-07-22 15:17:15,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3116,3129] [2022-07-22 15:17:15,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3386,3399] [2022-07-22 15:17:15,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[3604,3617] [2022-07-22 15:17:15,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4088,4101] [2022-07-22 15:17:15,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4306,4319] [2022-07-22 15:17:15,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[4802,4815] [2022-07-22 15:17:15,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5203,5216] [2022-07-22 15:17:15,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5421,5434] [2022-07-22 15:17:15,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[5792,5805] [2022-07-22 15:17:15,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6010,6023] [2022-07-22 15:17:15,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6296,6309] [2022-07-22 15:17:15,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c[6514,6527] [2022-07-22 15:17:15,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:17:15,077 INFO L208 MainTranslator]: Completed translation [2022-07-22 15:17:15,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15 WrapperNode [2022-07-22 15:17:15,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 15:17:15,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 15:17:15,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 15:17:15,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 15:17:15,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,112 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 244 [2022-07-22 15:17:15,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 15:17:15,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 15:17:15,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 15:17:15,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 15:17:15,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 15:17:15,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 15:17:15,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 15:17:15,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 15:17:15,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (1/1) ... [2022-07-22 15:17:15,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:17:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:17:15,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 15:17:15,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 15:17:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 15:17:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 15:17:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 15:17:15,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 15:17:15,254 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 15:17:15,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 15:17:15,448 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 15:17:15,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 15:17:15,456 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 15:17:15,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:17:15 BoogieIcfgContainer [2022-07-22 15:17:15,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 15:17:15,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 15:17:15,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 15:17:15,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 15:17:15,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:17:14" (1/3) ... [2022-07-22 15:17:15,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bedd8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:17:15, skipping insertion in model container [2022-07-22 15:17:15,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:17:15" (2/3) ... [2022-07-22 15:17:15,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bedd8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:17:15, skipping insertion in model container [2022-07-22 15:17:15,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:17:15" (3/3) ... [2022-07-22 15:17:15,465 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+lhb-reducer.c [2022-07-22 15:17:15,478 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 15:17:15,478 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-07-22 15:17:15,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 15:17:15,515 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3aec1fc4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a95232b [2022-07-22 15:17:15,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-07-22 15:17:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 74 states have internal predecessors, (104), 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) [2022-07-22 15:17:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 15:17:15,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:15,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:15,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash 123910062, now seen corresponding path program 1 times [2022-07-22 15:17:15,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:15,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774182785] [2022-07-22 15:17:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:15,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:15,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:15,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774182785] [2022-07-22 15:17:15,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774182785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:15,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:15,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588415100] [2022-07-22 15:17:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:15,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:15,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:15,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:15,718 INFO L87 Difference]: Start difference. First operand has 75 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 74 states have internal predecessors, (104), 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 2.0) internal successors, (8), 4 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) [2022-07-22 15:17:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:15,823 INFO L93 Difference]: Finished difference Result 123 states and 164 transitions. [2022-07-22 15:17:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2022-07-22 15:17:15,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:15,832 INFO L225 Difference]: With dead ends: 123 [2022-07-22 15:17:15,832 INFO L226 Difference]: Without dead ends: 107 [2022-07-22 15:17:15,834 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 [2022-07-22 15:17:15,838 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 81 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:15,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 250 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-22 15:17:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 69. [2022-07-22 15:17:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 68 states have internal predecessors, (73), 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) [2022-07-22 15:17:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2022-07-22 15:17:15,873 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 8 [2022-07-22 15:17:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:15,874 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2022-07-22 15:17:15,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-07-22 15:17:15,874 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2022-07-22 15:17:15,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 15:17:15,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:15,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:15,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 15:17:15,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:15,877 INFO L85 PathProgramCache]: Analyzing trace with hash 120339118, now seen corresponding path program 1 times [2022-07-22 15:17:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:15,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597582197] [2022-07-22 15:17:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:15,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:15,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:15,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597582197] [2022-07-22 15:17:15,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597582197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:15,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:15,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:15,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923283401] [2022-07-22 15:17:15,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:15,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:15,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:15,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:15,977 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-07-22 15:17:16,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,060 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2022-07-22 15:17:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:16,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2022-07-22 15:17:16,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,062 INFO L225 Difference]: With dead ends: 107 [2022-07-22 15:17:16,063 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 15:17:16,063 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 [2022-07-22 15:17:16,064 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 44 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 165 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 15:17:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2022-07-22 15:17:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 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) [2022-07-22 15:17:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2022-07-22 15:17:16,077 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 8 [2022-07-22 15:17:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,078 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2022-07-22 15:17:16,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2022-07-22 15:17:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2022-07-22 15:17:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 15:17:16,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 15:17:16,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2031737892, now seen corresponding path program 1 times [2022-07-22 15:17:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660900650] [2022-07-22 15:17:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660900650] [2022-07-22 15:17:16,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660900650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:16,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945541468] [2022-07-22 15:17:16,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:16,144 INFO L87 Difference]: Start difference. First operand 67 states and 71 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) [2022-07-22 15:17:16,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,265 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2022-07-22 15:17:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:16,266 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 [2022-07-22 15:17:16,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,269 INFO L225 Difference]: With dead ends: 69 [2022-07-22 15:17:16,269 INFO L226 Difference]: Without dead ends: 67 [2022-07-22 15:17:16,269 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 [2022-07-22 15:17:16,271 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 61 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 119 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-22 15:17:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-07-22 15:17:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.38) internal successors, (69), 64 states have internal predecessors, (69), 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) [2022-07-22 15:17:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-07-22 15:17:16,287 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 11 [2022-07-22 15:17:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,287 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-07-22 15:17:16,287 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) [2022-07-22 15:17:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-07-22 15:17:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-22 15:17:16,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 15:17:16,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1271153903, now seen corresponding path program 1 times [2022-07-22 15:17:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346831261] [2022-07-22 15:17:16,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346831261] [2022-07-22 15:17:16,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346831261] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:16,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285107010] [2022-07-22 15:17:16,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:16,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:16,360 INFO L87 Difference]: Start difference. First operand 65 states and 69 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) [2022-07-22 15:17:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,437 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2022-07-22 15:17:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:16,437 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 [2022-07-22 15:17:16,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,438 INFO L225 Difference]: With dead ends: 67 [2022-07-22 15:17:16,438 INFO L226 Difference]: Without dead ends: 65 [2022-07-22 15:17:16,438 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 [2022-07-22 15:17:16,442 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 59 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 113 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-22 15:17:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-07-22 15:17:16,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 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) [2022-07-22 15:17:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2022-07-22 15:17:16,457 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 11 [2022-07-22 15:17:16,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,457 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2022-07-22 15:17:16,457 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) [2022-07-22 15:17:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2022-07-22 15:17:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 15:17:16,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 15:17:16,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1440630601, now seen corresponding path program 1 times [2022-07-22 15:17:16,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029845854] [2022-07-22 15:17:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029845854] [2022-07-22 15:17:16,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029845854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:16,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397515066] [2022-07-22 15:17:16,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:16,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:16,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:16,518 INFO L87 Difference]: Start difference. First operand 63 states and 67 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) [2022-07-22 15:17:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,567 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2022-07-22 15:17:16,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:17:16,568 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 [2022-07-22 15:17:16,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,569 INFO L225 Difference]: With dead ends: 65 [2022-07-22 15:17:16,569 INFO L226 Difference]: Without dead ends: 61 [2022-07-22 15:17:16,569 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 [2022-07-22 15:17:16,570 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 16 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 136 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:16,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-22 15:17:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-07-22 15:17:16,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 58 states have internal predecessors, (63), 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) [2022-07-22 15:17:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2022-07-22 15:17:16,581 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 12 [2022-07-22 15:17:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,581 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2022-07-22 15:17:16,581 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) [2022-07-22 15:17:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2022-07-22 15:17:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 15:17:16,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 15:17:16,583 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1440142029, now seen corresponding path program 1 times [2022-07-22 15:17:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745747465] [2022-07-22 15:17:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745747465] [2022-07-22 15:17:16,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745747465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391274371] [2022-07-22 15:17:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:16,653 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-22 15:17:16,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,734 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2022-07-22 15:17:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:16,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-07-22 15:17:16,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,735 INFO L225 Difference]: With dead ends: 95 [2022-07-22 15:17:16,735 INFO L226 Difference]: Without dead ends: 93 [2022-07-22 15:17:16,736 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 [2022-07-22 15:17:16,737 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 87 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 144 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:16,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-22 15:17:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 57. [2022-07-22 15:17:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 56 states have internal predecessors, (61), 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) [2022-07-22 15:17:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-07-22 15:17:16,743 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 12 [2022-07-22 15:17:16,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,743 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-07-22 15:17:16,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-22 15:17:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-07-22 15:17:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 15:17:16,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 15:17:16,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1440126141, now seen corresponding path program 1 times [2022-07-22 15:17:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425112642] [2022-07-22 15:17:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425112642] [2022-07-22 15:17:16,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425112642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:16,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245827982] [2022-07-22 15:17:16,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:16,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:16,803 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-22 15:17:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,884 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-07-22 15:17:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-07-22 15:17:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,885 INFO L225 Difference]: With dead ends: 100 [2022-07-22 15:17:16,885 INFO L226 Difference]: Without dead ends: 98 [2022-07-22 15:17:16,886 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 [2022-07-22 15:17:16,887 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 91 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 144 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-22 15:17:16,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 55. [2022-07-22 15:17:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 54 states have internal predecessors, (59), 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) [2022-07-22 15:17:16,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2022-07-22 15:17:16,895 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 12 [2022-07-22 15:17:16,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,896 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2022-07-22 15:17:16,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-22 15:17:16,896 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2022-07-22 15:17:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-22 15:17:16,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 15:17:16,897 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,898 INFO L85 PathProgramCache]: Analyzing trace with hash -751061257, now seen corresponding path program 1 times [2022-07-22 15:17:16,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294212751] [2022-07-22 15:17:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:16,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294212751] [2022-07-22 15:17:16,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294212751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:16,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:16,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519937745] [2022-07-22 15:17:16,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:16,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:16,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:16,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:16,938 INFO L87 Difference]: Start difference. First operand 55 states and 59 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) [2022-07-22 15:17:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:16,968 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-07-22 15:17:16,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:17:16,969 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 [2022-07-22 15:17:16,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:16,969 INFO L225 Difference]: With dead ends: 57 [2022-07-22 15:17:16,969 INFO L226 Difference]: Without dead ends: 53 [2022-07-22 15:17:16,969 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 [2022-07-22 15:17:16,970 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:16,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 118 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-22 15:17:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-07-22 15:17:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 50 states have internal predecessors, (55), 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) [2022-07-22 15:17:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-07-22 15:17:16,972 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 12 [2022-07-22 15:17:16,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:16,972 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-07-22 15:17:16,972 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) [2022-07-22 15:17:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-07-22 15:17:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 15:17:16,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:16,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:16,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 15:17:16,973 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1694725733, now seen corresponding path program 1 times [2022-07-22 15:17:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:16,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979992142] [2022-07-22 15:17:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:16,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979992142] [2022-07-22 15:17:17,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979992142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:17,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282771591] [2022-07-22 15:17:17,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:17,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:17,068 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-07-22 15:17:17,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,154 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2022-07-22 15:17:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 15:17:17,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 [2022-07-22 15:17:17,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,155 INFO L225 Difference]: With dead ends: 118 [2022-07-22 15:17:17,155 INFO L226 Difference]: Without dead ends: 116 [2022-07-22 15:17:17,156 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 [2022-07-22 15:17:17,157 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 223 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-07-22 15:17:17,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 56. [2022-07-22 15:17:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 55 states have internal predecessors, (61), 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) [2022-07-22 15:17:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-07-22 15:17:17,161 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2022-07-22 15:17:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,161 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-07-22 15:17:17,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-07-22 15:17:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-07-22 15:17:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 15:17:17,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 15:17:17,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1694233189, now seen corresponding path program 1 times [2022-07-22 15:17:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408426650] [2022-07-22 15:17:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408426650] [2022-07-22 15:17:17,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408426650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:17,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100874293] [2022-07-22 15:17:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:17,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:17,257 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-07-22 15:17:17,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,333 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2022-07-22 15:17:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 15:17:17,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 [2022-07-22 15:17:17,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,334 INFO L225 Difference]: With dead ends: 116 [2022-07-22 15:17:17,334 INFO L226 Difference]: Without dead ends: 114 [2022-07-22 15:17:17,334 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 [2022-07-22 15:17:17,335 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 86 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 195 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-22 15:17:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 58. [2022-07-22 15:17:17,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.3125) internal successors, (63), 57 states have internal predecessors, (63), 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) [2022-07-22 15:17:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-07-22 15:17:17,338 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 13 [2022-07-22 15:17:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,339 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-07-22 15:17:17,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2022-07-22 15:17:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-07-22 15:17:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 15:17:17,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 15:17:17,340 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1791008026, now seen corresponding path program 1 times [2022-07-22 15:17:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103887501] [2022-07-22 15:17:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103887501] [2022-07-22 15:17:17,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103887501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:17,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18450216] [2022-07-22 15:17:17,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:17,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:17,378 INFO L87 Difference]: Start difference. First operand 58 states and 63 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) [2022-07-22 15:17:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,429 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-07-22 15:17:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:17,429 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 [2022-07-22 15:17:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,430 INFO L225 Difference]: With dead ends: 76 [2022-07-22 15:17:17,430 INFO L226 Difference]: Without dead ends: 74 [2022-07-22 15:17:17,430 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 [2022-07-22 15:17:17,430 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 103 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-22 15:17:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 56. [2022-07-22 15:17:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.297872340425532) internal successors, (61), 55 states have internal predecessors, (61), 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) [2022-07-22 15:17:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-07-22 15:17:17,433 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 13 [2022-07-22 15:17:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,433 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-07-22 15:17:17,433 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) [2022-07-22 15:17:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-07-22 15:17:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 15:17:17,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 15:17:17,434 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1789284122, now seen corresponding path program 1 times [2022-07-22 15:17:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970776174] [2022-07-22 15:17:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970776174] [2022-07-22 15:17:17,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970776174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:17,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890317230] [2022-07-22 15:17:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:17,455 INFO L87 Difference]: Start difference. First operand 56 states and 61 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) [2022-07-22 15:17:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,498 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2022-07-22 15:17:17,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:17,498 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 [2022-07-22 15:17:17,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,498 INFO L225 Difference]: With dead ends: 57 [2022-07-22 15:17:17,499 INFO L226 Difference]: Without dead ends: 55 [2022-07-22 15:17:17,499 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 [2022-07-22 15:17:17,499 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 41 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:17,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-22 15:17:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-07-22 15:17:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 53 states have internal predecessors, (59), 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) [2022-07-22 15:17:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-07-22 15:17:17,502 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2022-07-22 15:17:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,503 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-07-22 15:17:17,503 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) [2022-07-22 15:17:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-07-22 15:17:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 15:17:17,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 15:17:17,504 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,505 INFO L85 PathProgramCache]: Analyzing trace with hash 313330138, now seen corresponding path program 1 times [2022-07-22 15:17:17,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068300566] [2022-07-22 15:17:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068300566] [2022-07-22 15:17:17,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068300566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:17,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832168995] [2022-07-22 15:17:17,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:17,562 INFO L87 Difference]: Start difference. First operand 54 states and 59 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) [2022-07-22 15:17:17,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,635 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2022-07-22 15:17:17,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 15:17:17,636 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 [2022-07-22 15:17:17,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,637 INFO L225 Difference]: With dead ends: 92 [2022-07-22 15:17:17,637 INFO L226 Difference]: Without dead ends: 90 [2022-07-22 15:17:17,637 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 [2022-07-22 15:17:17,638 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 55 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 164 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-22 15:17:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2022-07-22 15:17:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 59 states have internal predecessors, (67), 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) [2022-07-22 15:17:17,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-07-22 15:17:17,641 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 14 [2022-07-22 15:17:17,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,641 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-07-22 15:17:17,641 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) [2022-07-22 15:17:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-07-22 15:17:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 15:17:17,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 15:17:17,642 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,642 INFO L85 PathProgramCache]: Analyzing trace with hash 314877283, now seen corresponding path program 1 times [2022-07-22 15:17:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481908097] [2022-07-22 15:17:17,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481908097] [2022-07-22 15:17:17,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481908097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:17:17,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590019560] [2022-07-22 15:17:17,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:17:17,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:17:17,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:17:17,660 INFO L87 Difference]: Start difference. First operand 60 states and 67 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) [2022-07-22 15:17:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,711 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-07-22 15:17:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:17,711 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 [2022-07-22 15:17:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,712 INFO L225 Difference]: With dead ends: 80 [2022-07-22 15:17:17,712 INFO L226 Difference]: Without dead ends: 78 [2022-07-22 15:17:17,712 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 [2022-07-22 15:17:17,712 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 95 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:17,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-07-22 15:17:17,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-07-22 15:17:17,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 57 states have internal predecessors, (65), 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) [2022-07-22 15:17:17,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-07-22 15:17:17,715 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 14 [2022-07-22 15:17:17,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,715 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-07-22 15:17:17,715 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) [2022-07-22 15:17:17,715 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-07-22 15:17:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 15:17:17,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 15:17:17,716 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,716 INFO L85 PathProgramCache]: Analyzing trace with hash 366771218, now seen corresponding path program 1 times [2022-07-22 15:17:17,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275436215] [2022-07-22 15:17:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275436215] [2022-07-22 15:17:17,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275436215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002851795] [2022-07-22 15:17:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:17,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:17,760 INFO L87 Difference]: Start difference. First operand 58 states and 65 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) [2022-07-22 15:17:17,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,833 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-07-22 15:17:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 15:17:17,834 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 [2022-07-22 15:17:17,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,834 INFO L225 Difference]: With dead ends: 70 [2022-07-22 15:17:17,834 INFO L226 Difference]: Without dead ends: 66 [2022-07-22 15:17:17,834 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 [2022-07-22 15:17:17,835 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 117 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-22 15:17:17,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2022-07-22 15:17:17,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 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) [2022-07-22 15:17:17,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-07-22 15:17:17,838 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 14 [2022-07-22 15:17:17,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,838 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-07-22 15:17:17,838 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) [2022-07-22 15:17:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-07-22 15:17:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 15:17:17,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 15:17:17,838 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1171265312, now seen corresponding path program 1 times [2022-07-22 15:17:17,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920518447] [2022-07-22 15:17:17,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920518447] [2022-07-22 15:17:17,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920518447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:17,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892113595] [2022-07-22 15:17:17,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:17,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:17,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:17,891 INFO L87 Difference]: Start difference. First operand 59 states and 66 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) [2022-07-22 15:17:17,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:17,957 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-07-22 15:17:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 15:17:17,958 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 [2022-07-22 15:17:17,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:17,958 INFO L225 Difference]: With dead ends: 87 [2022-07-22 15:17:17,958 INFO L226 Difference]: Without dead ends: 85 [2022-07-22 15:17:17,958 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 [2022-07-22 15:17:17,959 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 50 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:17,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 147 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-22 15:17:17,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2022-07-22 15:17:17,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 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) [2022-07-22 15:17:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-07-22 15:17:17,963 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 15 [2022-07-22 15:17:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:17,963 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-07-22 15:17:17,963 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) [2022-07-22 15:17:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-07-22 15:17:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 15:17:17,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:17,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:17,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 15:17:17,964 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:17,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash 462679229, now seen corresponding path program 1 times [2022-07-22 15:17:17,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:17,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283787088] [2022-07-22 15:17:17,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:17,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:17,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:17,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283787088] [2022-07-22 15:17:17,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283787088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:17,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:17,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:17,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539183305] [2022-07-22 15:17:17,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:17,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:17,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:17,982 INFO L87 Difference]: Start difference. First operand 62 states and 69 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) [2022-07-22 15:17:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:18,001 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-07-22 15:17:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:17:18,001 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 [2022-07-22 15:17:18,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:18,001 INFO L225 Difference]: With dead ends: 62 [2022-07-22 15:17:18,002 INFO L226 Difference]: Without dead ends: 60 [2022-07-22 15:17:18,002 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 [2022-07-22 15:17:18,002 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 37 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:18,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 66 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:18,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-07-22 15:17:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-07-22 15:17:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 59 states have internal predecessors, (67), 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) [2022-07-22 15:17:18,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-07-22 15:17:18,006 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 16 [2022-07-22 15:17:18,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:18,006 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-07-22 15:17:18,006 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) [2022-07-22 15:17:18,006 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-07-22 15:17:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 15:17:18,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:18,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:18,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 15:17:18,006 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:18,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1458158324, now seen corresponding path program 1 times [2022-07-22 15:17:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:18,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345947305] [2022-07-22 15:17:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:18,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:18,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345947305] [2022-07-22 15:17:18,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345947305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:18,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:18,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 15:17:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400420560] [2022-07-22 15:17:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:18,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 15:17:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:18,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 15:17:18,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 15:17:18,023 INFO L87 Difference]: Start difference. First operand 60 states and 67 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) [2022-07-22 15:17:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:18,048 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-07-22 15:17:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 15:17:18,048 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 [2022-07-22 15:17:18,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:18,048 INFO L225 Difference]: With dead ends: 60 [2022-07-22 15:17:18,048 INFO L226 Difference]: Without dead ends: 56 [2022-07-22 15:17:18,049 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 [2022-07-22 15:17:18,049 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:18,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 90 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:18,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-07-22 15:17:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-07-22 15:17:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 55 states have internal predecessors, (63), 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) [2022-07-22 15:17:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-07-22 15:17:18,052 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 17 [2022-07-22 15:17:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:18,052 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-07-22 15:17:18,052 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) [2022-07-22 15:17:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-07-22 15:17:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 15:17:18,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:18,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:18,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 15:17:18,053 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1747922500, now seen corresponding path program 1 times [2022-07-22 15:17:18,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354205689] [2022-07-22 15:17:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:18,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:18,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:18,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354205689] [2022-07-22 15:17:18,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354205689] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:17:18,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276517531] [2022-07-22 15:17:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:18,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:17:18,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:17:18,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 15:17:18,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 15:17:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:18,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 15:17:18,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:17:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:18,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:17:18,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 15:17:18,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276517531] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:17:18,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:17:18,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 13 [2022-07-22 15:17:18,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484779304] [2022-07-22 15:17:18,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:17:18,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 15:17:18,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:18,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 15:17:18,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 15:17:18,398 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-07-22 15:17:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:18,565 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2022-07-22 15:17:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 15:17:18,566 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 [2022-07-22 15:17:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:18,566 INFO L225 Difference]: With dead ends: 121 [2022-07-22 15:17:18,566 INFO L226 Difference]: Without dead ends: 119 [2022-07-22 15:17:18,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-07-22 15:17:18,569 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 221 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:18,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 117 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:18,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-22 15:17:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 52. [2022-07-22 15:17:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 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) [2022-07-22 15:17:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-07-22 15:17:18,573 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 18 [2022-07-22 15:17:18,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:18,573 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-07-22 15:17:18,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-07-22 15:17:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-07-22 15:17:18,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 15:17:18,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:18,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:18,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 15:17:18,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:17:18,800 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1748415044, now seen corresponding path program 1 times [2022-07-22 15:17:18,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:18,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026103485] [2022-07-22 15:17:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:18,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:18,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:18,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026103485] [2022-07-22 15:17:18,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026103485] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:17:18,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679383497] [2022-07-22 15:17:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:18,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:17:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:17:18,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 15:17:18,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 15:17:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:18,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 15:17:18,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:17:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:19,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:17:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 15:17:19,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679383497] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:17:19,051 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:17:19,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5] total 13 [2022-07-22 15:17:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142205216] [2022-07-22 15:17:19,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:17:19,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 15:17:19,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:19,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 15:17:19,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-22 15:17:19,053 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-07-22 15:17:19,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:19,200 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2022-07-22 15:17:19,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 15:17:19,201 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 [2022-07-22 15:17:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:19,202 INFO L225 Difference]: With dead ends: 100 [2022-07-22 15:17:19,202 INFO L226 Difference]: Without dead ends: 98 [2022-07-22 15:17:19,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-07-22 15:17:19,202 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 279 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:19,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 108 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 15:17:19,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-22 15:17:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 45. [2022-07-22 15:17:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 44 states have internal predecessors, (51), 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) [2022-07-22 15:17:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-07-22 15:17:19,209 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-07-22 15:17:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:19,209 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-07-22 15:17:19,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2022-07-22 15:17:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-07-22 15:17:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 15:17:19,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:19,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:19,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 15:17:19,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-22 15:17:19,426 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:19,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:19,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2026613132, now seen corresponding path program 1 times [2022-07-22 15:17:19,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:19,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069971783] [2022-07-22 15:17:19,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:19,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:19,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:19,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069971783] [2022-07-22 15:17:19,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069971783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:19,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:19,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 15:17:19,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119197861] [2022-07-22 15:17:19,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:19,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 15:17:19,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:19,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 15:17:19,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:17:19,476 INFO L87 Difference]: Start difference. First operand 45 states and 51 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) [2022-07-22 15:17:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:19,529 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-07-22 15:17:19,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 15:17:19,529 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 [2022-07-22 15:17:19,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:19,531 INFO L225 Difference]: With dead ends: 60 [2022-07-22 15:17:19,531 INFO L226 Difference]: Without dead ends: 58 [2022-07-22 15:17:19,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-22 15:17:19,531 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 92 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:19,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 39 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:19,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-22 15:17:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 40. [2022-07-22 15:17:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 39 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) [2022-07-22 15:17:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2022-07-22 15:17:19,534 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 18 [2022-07-22 15:17:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:19,534 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2022-07-22 15:17:19,534 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) [2022-07-22 15:17:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2022-07-22 15:17:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 15:17:19,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:19,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:19,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 15:17:19,536 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash -684716563, now seen corresponding path program 1 times [2022-07-22 15:17:19,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121489384] [2022-07-22 15:17:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:19,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:19,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121489384] [2022-07-22 15:17:19,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121489384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:19,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:19,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 15:17:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911834190] [2022-07-22 15:17:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:19,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 15:17:19,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:19,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 15:17:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 15:17:19,572 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 15:17:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:19,617 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-07-22 15:17:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 15:17:19,617 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-07-22 15:17:19,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:19,617 INFO L225 Difference]: With dead ends: 52 [2022-07-22 15:17:19,617 INFO L226 Difference]: Without dead ends: 50 [2022-07-22 15:17:19,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-22 15:17:19,618 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 61 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:19,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 34 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-22 15:17:19,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2022-07-22 15:17:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 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) [2022-07-22 15:17:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-07-22 15:17:19,623 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 19 [2022-07-22 15:17:19,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:19,623 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-07-22 15:17:19,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 15:17:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-07-22 15:17:19,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 15:17:19,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:17:19,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:17:19,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 15:17:19,624 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-07-22 15:17:19,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:17:19,624 INFO L85 PathProgramCache]: Analyzing trace with hash -631275483, now seen corresponding path program 1 times [2022-07-22 15:17:19,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:17:19,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094924604] [2022-07-22 15:17:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:17:19,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:17:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:17:19,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:17:19,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:17:19,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094924604] [2022-07-22 15:17:19,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094924604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:17:19,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:17:19,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 15:17:19,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961585554] [2022-07-22 15:17:19,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:17:19,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 15:17:19,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:17:19,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 15:17:19,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 15:17:19,665 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 15:17:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:17:19,702 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2022-07-22 15:17:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 15:17:19,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-07-22 15:17:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:17:19,703 INFO L225 Difference]: With dead ends: 35 [2022-07-22 15:17:19,703 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 15:17:19,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 15:17:19,704 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 43 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:17:19,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 24 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:17:19,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 15:17:19,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 15:17:19,704 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) [2022-07-22 15:17:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 15:17:19,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-07-22 15:17:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:17:19,705 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 15:17:19,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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) [2022-07-22 15:17:19,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 15:17:19,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (16 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (15 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (14 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (13 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (12 of 18 remaining) [2022-07-22 15:17:19,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (11 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (10 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (9 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (8 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (7 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (6 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (5 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (4 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (3 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (2 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (1 of 18 remaining) [2022-07-22 15:17:19,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (0 of 18 remaining) [2022-07-22 15:17:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 15:17:19,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 15:18:29,670 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 95 DAG size of output: 94 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-22 15:18:50,034 WARN L233 SmtUtils]: Spent 15.34s on a formula simplification. DAG size of input: 75 DAG size of output: 70 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L126(line 126) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L366(line 366) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L333(line 333) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 242) no Hoare annotation was computed. [2022-07-22 15:18:50,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 297) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 126) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L309(line 309) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 401) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 391) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L902 garLoopResultBuilder]: At program point L400(lines 15 402) the Hoare annotation is: true [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 345) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 94) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L895 garLoopResultBuilder]: At program point L384(lines 282 391) the Hoare annotation is: (and (let ((.cse1 (= |ULTIMATE.start_main_~main__t~0#1| 0))) (let ((.cse0 (let ((.cse2 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 0)))) (or (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) .cse2) (and .cse2 .cse1))))) (or (and .cse0 .cse1) (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~18#1| 0)) (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1|) .cse0)))) (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|))) [2022-07-22 15:18:50,574 INFO L895 garLoopResultBuilder]: At program point L351(lines 32 395) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~main__t~0#1| 0) (< |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) (and (not (<= |ULTIMATE.start_main_~main__tagbuf_len~0#1| |ULTIMATE.start_main_~main__t~0#1|)) (let ((.cse2 (<= |ULTIMATE.start_main_~main__t~0#1| 1))) (let ((.cse0 (let ((.cse3 (<= 1 |ULTIMATE.start_main_~main__t~0#1|)) (.cse4 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~13#1| 0))) (.cse5 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~16#1| 0)))) (or (and .cse3 .cse4 .cse2 .cse5) (and .cse3 .cse4 (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1| 0)) .cse5)))) (.cse1 (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__cond~17#1|))) (or (and .cse0 .cse1 .cse2) (and (<= 1 |ULTIMATE.start_main_~__VERIFIER_assert__cond~19#1|) .cse0 .cse1)))))) [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 196) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 278) no Hoare annotation was computed. [2022-07-22 15:18:50,574 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 385) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 352) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 203) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 333) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L895 garLoopResultBuilder]: At program point L195(lines 56 253) 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|)) [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L278(line 278) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 209) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 255) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 317) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2022-07-22 15:18:50,575 INFO L899 garLoopResultBuilder]: For program point L345(line 345) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 395) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 390) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 244) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 396) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 162) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L297(line 297) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 201) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L902 garLoopResultBuilder]: At program point L314(lines 32 395) the Hoare annotation is: true [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 250) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 253) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 198) no Hoare annotation was computed. [2022-07-22 15:18:50,576 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 387) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 354) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 393) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 200) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L895 garLoopResultBuilder]: At program point L249(lines 101 251) 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|))) [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 315) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 309) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 251) no Hoare annotation was computed. [2022-07-22 15:18:50,577 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 389) no Hoare annotation was computed. [2022-07-22 15:18:50,580 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:18:50,581 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 15:18:50,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:18:50 BoogieIcfgContainer [2022-07-22 15:18:50,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 15:18:50,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 15:18:50,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 15:18:50,593 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 15:18:50,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:17:15" (3/4) ... [2022-07-22 15:18:50,595 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 15:18:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-22 15:18:50,603 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 15:18:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 15:18:50,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 15:18:50,642 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 15:18:50,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 15:18:50,643 INFO L158 Benchmark]: Toolchain (without parser) took 95833.03ms. Allocated memory was 109.1MB in the beginning and 750.8MB in the end (delta: 641.7MB). Free memory was 79.6MB in the beginning and 684.1MB in the end (delta: -604.5MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,644 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:18:50,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.08ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 79.3MB in the beginning and 104.1MB in the end (delta: -24.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.65ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,645 INFO L158 Benchmark]: Boogie Preprocessor took 15.89ms. Allocated memory is still 136.3MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,645 INFO L158 Benchmark]: RCFGBuilder took 328.84ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 86.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,645 INFO L158 Benchmark]: TraceAbstraction took 95133.71ms. Allocated memory was 136.3MB in the beginning and 750.8MB in the end (delta: 614.5MB). Free memory was 86.3MB in the beginning and 688.3MB in the end (delta: -602.0MB). Peak memory consumption was 423.9MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,646 INFO L158 Benchmark]: Witness Printer took 49.67ms. Allocated memory is still 750.8MB. Free memory was 688.3MB in the beginning and 684.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 15:18:50,647 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 109.1MB. Free memory was 65.8MB in the beginning and 65.7MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.08ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 79.3MB in the beginning and 104.1MB in the end (delta: -24.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.65ms. Allocated memory is still 136.3MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.89ms. Allocated memory is still 136.3MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.84ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 86.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 95133.71ms. Allocated memory was 136.3MB in the beginning and 750.8MB in the end (delta: 614.5MB). Free memory was 86.3MB in the beginning and 688.3MB in the end (delta: -602.0MB). Peak memory consumption was 423.9MB. Max. memory is 16.1GB. * Witness Printer took 49.67ms. Allocated memory is still 750.8MB. Free memory was 688.3MB in the beginning and 684.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 52]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 72]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 114]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 126]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 154]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 188]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 224]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 236]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 278]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 297]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 309]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 345]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 366]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 378]: 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, 75 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 95.1s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 90.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1651 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1651 mSDsluCounter, 2788 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1760 mSDsCounter, 203 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2049 IncrementalHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 203 mSolverCounterUnsat, 1028 mSDtfsCounter, 2049 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 98 SyntacticMatches, 10 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 142, 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, 23 MinimizatonAttempts, 531 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 12 NumberOfFragments, 161 HoareAnnotationTreeSize, 6 FomulaSimplifications, 1951247 FormulaSimplificationTreeSizeReduction, 90.3s HoareSimplificationTime, 6 FomulaSimplificationsInter, 11241620 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 365 ConstructedInterpolants, 0 QuantifiedInterpolants, 1622 SizeOfPredicates, 6 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 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 18 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (main__t == 0 && main__t < main__tagbuf_len) || (!(main__tagbuf_len <= main__t) && (((((((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && main__t <= 1) && !(__VERIFIER_assert__cond == 0)) || (((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0))) && 1 <= __VERIFIER_assert__cond) && main__t <= 1) || ((1 <= __VERIFIER_assert__cond && ((((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && main__t <= 1) && !(__VERIFIER_assert__cond == 0)) || (((1 <= main__t && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)))) && 1 <= __VERIFIER_assert__cond))) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 1 <= main__t && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((((1 <= main__t && !(__VERIFIER_assert__cond == 0)) || (!(__VERIFIER_assert__cond == 0) && main__t == 0)) && main__t == 0) || ((!(__VERIFIER_assert__cond == 0) && 1 <= __VERIFIER_assert__cond) && ((1 <= main__t && !(__VERIFIER_assert__cond == 0)) || (!(__VERIFIER_assert__cond == 0) && main__t == 0)))) && !(main__tagbuf_len <= main__t) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 15:18:50,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE