./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/SpamAssassin-loop.i.v+cfa-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 c6d41d2a2a28e240d9196f063199b00c22e981e9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 02:52:41,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 02:52:41,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 02:52:41,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 02:52:41,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 02:52:41,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 02:52:41,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 02:52:41,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 02:52:41,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 02:52:41,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 02:52:41,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 02:52:41,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 02:52:41,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 02:52:41,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 02:52:41,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 02:52:41,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 02:52:41,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 02:52:41,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 02:52:41,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 02:52:41,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 02:52:41,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 02:52:41,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 02:52:41,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 02:52:41,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 02:52:41,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 02:52:41,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 02:52:41,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 02:52:41,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 02:52:41,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 02:52:41,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 02:52:41,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 02:52:41,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 02:52:41,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 02:52:41,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 02:52:41,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 02:52:41,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 02:52:41,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 02:52:41,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 02:52:41,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 02:52:41,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 02:52:41,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 02:52:41,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 02:52:41,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 02:52:41,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 02:52:41,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 02:52:41,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 02:52:41,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 02:52:41,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:52:41,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 02:52:41,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 02:52:41,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 02:52:41,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 02:52:41,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 02:52:41,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 02:52:41,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 02:52:41,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6d41d2a2a28e240d9196f063199b00c22e981e9 [2021-07-05 02:52:41,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 02:52:41,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 02:52:41,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 02:52:41,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 02:52:41,987 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 02:52:41,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2021-07-05 02:52:42,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548f3279/ad39c05a9216431aba3fa328245e7dd6/FLAG1150ff97d [2021-07-05 02:52:42,357 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 02:52:42,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i.v+cfa-reducer.c [2021-07-05 02:52:42,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548f3279/ad39c05a9216431aba3fa328245e7dd6/FLAG1150ff97d [2021-07-05 02:52:42,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548f3279/ad39c05a9216431aba3fa328245e7dd6 [2021-07-05 02:52:42,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 02:52:42,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 02:52:42,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 02:52:42,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 02:52:42,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 02:52:42,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:42,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cf9da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42, skipping insertion in model container [2021-07-05 02:52:42,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:42,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 02:52:42,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 02:52:42,892 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2021-07-05 02:52:42,895 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2021-07-05 02:52:42,896 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2021-07-05 02:52:42,897 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2021-07-05 02:52:42,898 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2021-07-05 02:52:42,899 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2021-07-05 02:52:42,900 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2021-07-05 02:52:42,901 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2021-07-05 02:52:42,912 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2021-07-05 02:52:42,913 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2021-07-05 02:52:42,914 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2021-07-05 02:52:42,917 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2021-07-05 02:52:42,918 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-07-05 02:52:42,920 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2021-07-05 02:52:42,923 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2021-07-05 02:52:42,924 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2021-07-05 02:52:42,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:52:42,934 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 02:52:42,951 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1066,1079] [2021-07-05 02:52:42,952 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1266,1279] [2021-07-05 02:52:42,953 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1613,1626] [2021-07-05 02:52:42,967 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[1813,1826] [2021-07-05 02:52:42,968 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2024,2037] [2021-07-05 02:52:42,969 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2224,2237] [2021-07-05 02:52:42,971 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2629,2642] [2021-07-05 02:52:42,971 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[2829,2842] [2021-07-05 02:52:42,972 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3040,3053] [2021-07-05 02:52:42,973 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3243,3256] [2021-07-05 02:52:42,974 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3583,3596] [2021-07-05 02:52:42,975 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[3786,3799] [2021-07-05 02:52:42,976 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4000,4013] [2021-07-05 02:52:42,977 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4203,4216] [2021-07-05 02:52:42,978 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4547,4560] [2021-07-05 02:52:42,979 WARN L224 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/SpamAssassin-loop.i.v+cfa-reducer.c[4750,4763] [2021-07-05 02:52:42,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 02:52:42,990 INFO L208 MainTranslator]: Completed translation [2021-07-05 02:52:42,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42 WrapperNode [2021-07-05 02:52:42,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 02:52:43,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 02:52:43,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 02:52:43,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 02:52:43,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 02:52:43,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 02:52:43,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 02:52:43,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 02:52:43,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 02:52:43,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 02:52:43,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 02:52:43,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 02:52:43,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (1/1) ... [2021-07-05 02:52:43,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 02:52:43,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 02:52:43,100 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) [2021-07-05 02:52:43,122 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 [2021-07-05 02:52:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 02:52:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 02:52:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 02:52:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 02:52:43,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 02:52:43,386 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-05 02:52:43,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:52:43 BoogieIcfgContainer [2021-07-05 02:52:43,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 02:52:43,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 02:52:43,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 02:52:43,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 02:52:43,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 02:52:42" (1/3) ... [2021-07-05 02:52:43,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42093984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:52:43, skipping insertion in model container [2021-07-05 02:52:43,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 02:52:42" (2/3) ... [2021-07-05 02:52:43,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42093984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 02:52:43, skipping insertion in model container [2021-07-05 02:52:43,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:52:43" (3/3) ... [2021-07-05 02:52:43,392 INFO L111 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i.v+cfa-reducer.c [2021-07-05 02:52:43,396 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 02:52:43,396 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-07-05 02:52:43,428 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:43,431 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:43,431 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-05 02:52:43,458 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:43,459 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:43,459 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:43,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1241029004, now seen corresponding path program 1 times [2021-07-05 02:52:43,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:43,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698823917] [2021-07-05 02:52:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:43,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:43,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:43,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:43,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:43,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698823917] [2021-07-05 02:52:43,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698823917] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:43,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:43,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 02:52:43,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551184853] [2021-07-05 02:52:43,639 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 02:52:43,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:43,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 02:52:43,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:52:43,654 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-07-05 02:52:43,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:43,681 INFO L93 Difference]: Finished difference Result 83 states and 110 transitions. [2021-07-05 02:52:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 02:52:43,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-07-05 02:52:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:43,686 INFO L225 Difference]: With dead ends: 83 [2021-07-05 02:52:43,686 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:43,691 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 02:52:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:43,704 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) [2021-07-05 02:52:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:43,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-07-05 02:52:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:43,706 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:43,706 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-07-05 02:52:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:43,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:43,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:43,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,721 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:43,722 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:43,722 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:43,722 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:43,723 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:43,723 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:43,723 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:43,723 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:43,724 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:43,725 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:43,725 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:43,727 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:43,728 INFO L765 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: true [2021-07-05 02:52:43,728 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:43,728 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:43,728 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:43,729 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:43,729 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:43,730 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:43,730 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:43,734 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:43,735 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:43,736 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:43,738 INFO L765 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: true [2021-07-05 02:52:43,738 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:43,739 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L765 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: true [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:43,740 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:43,741 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:43,742 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:43,742 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 02:52:43,742 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:43,745 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was SAFE (1/16) [2021-07-05 02:52:43,752 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:43,753 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:43,753 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:43,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 02:52:43,761 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:43,762 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:43,762 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:43,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash -182802478, now seen corresponding path program 1 times [2021-07-05 02:52:43,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:43,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259256135] [2021-07-05 02:52:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:43,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:43,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,815 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-07-05 02:52:43,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:43,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:43,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:43,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:43,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259256135] [2021-07-05 02:52:43,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259256135] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:43,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:43,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:43,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50099371] [2021-07-05 02:52:43,823 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:43,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:43,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:43,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:43,824 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 02:52:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:43,911 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2021-07-05 02:52:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:52:43,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-07-05 02:52:43,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:43,912 INFO L225 Difference]: With dead ends: 89 [2021-07-05 02:52:43,912 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:43,913 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:43,913 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) [2021-07-05 02:52:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:43,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-07-05 02:52:43,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:43,922 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:43,922 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 02:52:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:43,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:43,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:43,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:43,939 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:43,939 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:43,940 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:43,941 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:43,942 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:43,942 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:43,942 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:43,942 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:43,944 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:43,945 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:43,945 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:43,946 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:43,946 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:43,946 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:43,946 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:43,946 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:43,947 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:43,947 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:43,947 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:43,947 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:43,947 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:43,948 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:43,949 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:43,950 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:43,951 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:43,951 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:43,952 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:43,953 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 02:52:43,953 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:43,954 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION was SAFE (2/16) [2021-07-05 02:52:43,955 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:43,956 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:43,958 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:43,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-05 02:52:43,960 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:43,960 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:43,960 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:43,961 INFO L82 PathProgramCache]: Analyzing trace with hash -179156060, now seen corresponding path program 1 times [2021-07-05 02:52:43,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:43,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380579205] [2021-07-05 02:52:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:43,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:43,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:43,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:43,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:43,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:43,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:43,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380579205] [2021-07-05 02:52:43,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380579205] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:43,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:43,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:43,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175667482] [2021-07-05 02:52:43,994 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:43,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:43,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:43,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:43,995 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 02:52:44,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,053 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2021-07-05 02:52:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:52:44,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-07-05 02:52:44,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,054 INFO L225 Difference]: With dead ends: 164 [2021-07-05 02:52:44,054 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,055 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,055 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) [2021-07-05 02:52:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-07-05 02:52:44,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,056 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,056 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-07-05 02:52:44,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,063 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,064 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__i~0)) [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,065 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,065 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,066 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,067 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,068 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,069 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,070 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-05 02:52:44,070 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,070 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION was SAFE (3/16) [2021-07-05 02:52:44,071 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,071 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,071 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-05 02:52:44,073 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,073 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,073 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1258866483, now seen corresponding path program 1 times [2021-07-05 02:52:44,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292133018] [2021-07-05 02:52:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,114 INFO L142 QuantifierPusher]: treesize reduction 4, result has 42.9 percent of original size [2021-07-05 02:52:44,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:44,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292133018] [2021-07-05 02:52:44,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292133018] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:44,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045323341] [2021-07-05 02:52:44,127 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:44,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:44,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:44,130 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 2.75) internal successors, (11), 4 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) [2021-07-05 02:52:44,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,179 INFO L93 Difference]: Finished difference Result 114 states and 150 transitions. [2021-07-05 02:52:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:52:44,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2021-07-05 02:52:44,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,184 INFO L225 Difference]: With dead ends: 114 [2021-07-05 02:52:44,184 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,185 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,185 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) [2021-07-05 02:52:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-07-05 02:52:44,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,186 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,186 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-07-05 02:52:44,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,195 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,195 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,196 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,197 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__i~0)) [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,198 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,199 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,199 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,199 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,199 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,200 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,201 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,202 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,203 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,204 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-05 02:52:44,204 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,204 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION was SAFE (4/16) [2021-07-05 02:52:44,205 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,206 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,207 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 02:52:44,209 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,209 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,210 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,210 INFO L82 PathProgramCache]: Analyzing trace with hash -370151221, now seen corresponding path program 1 times [2021-07-05 02:52:44,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957748206] [2021-07-05 02:52:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957748206] [2021-07-05 02:52:44,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957748206] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:52:44,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194891108] [2021-07-05 02:52:44,259 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:52:44,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:52:44,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,260 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,329 INFO L93 Difference]: Finished difference Result 117 states and 154 transitions. [2021-07-05 02:52:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:52:44,330 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 [2021-07-05 02:52:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,330 INFO L225 Difference]: With dead ends: 117 [2021-07-05 02:52:44,330 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,331 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 02:52:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,331 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) [2021-07-05 02:52:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-07-05 02:52:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,331 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,332 INFO L443 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) [2021-07-05 02:52:44,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,342 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,342 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,342 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,342 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,343 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,345 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,346 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,347 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,348 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,364 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,365 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,365 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,365 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-05 02:52:44,365 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,365 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION was SAFE (5/16) [2021-07-05 02:52:44,366 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,366 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,367 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-05 02:52:44,368 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,368 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,368 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1410218132, now seen corresponding path program 1 times [2021-07-05 02:52:44,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020747011] [2021-07-05 02:52:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-07-05 02:52:44,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:44,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020747011] [2021-07-05 02:52:44,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020747011] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:44,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413549194] [2021-07-05 02:52:44,403 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:44,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:44,403 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 3.25) internal successors, (13), 4 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) [2021-07-05 02:52:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,456 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2021-07-05 02:52:44,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:52:44,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 [2021-07-05 02:52:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,457 INFO L225 Difference]: With dead ends: 121 [2021-07-05 02:52:44,457 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,457 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,458 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) [2021-07-05 02:52:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-05 02:52:44,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,458 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,458 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-07-05 02:52:44,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,467 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,467 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,468 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,468 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,468 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,468 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,468 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,469 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,469 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,469 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,470 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,471 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,472 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,473 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,474 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,475 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,475 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,475 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-05 02:52:44,475 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,475 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION was SAFE (6/16) [2021-07-05 02:52:44,476 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,477 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,477 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-05 02:52:44,479 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,480 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,480 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,480 INFO L82 PathProgramCache]: Analyzing trace with hash 420636790, now seen corresponding path program 1 times [2021-07-05 02:52:44,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456967826] [2021-07-05 02:52:44,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456967826] [2021-07-05 02:52:44,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456967826] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:44,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910684847] [2021-07-05 02:52:44,540 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:44,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:44,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:44,541 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:44,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,599 INFO L93 Difference]: Finished difference Result 146 states and 201 transitions. [2021-07-05 02:52:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:52:44,600 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 [2021-07-05 02:52:44,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,600 INFO L225 Difference]: With dead ends: 146 [2021-07-05 02:52:44,600 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,600 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,601 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) [2021-07-05 02:52:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-07-05 02:52:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,601 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,601 INFO L443 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) [2021-07-05 02:52:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,615 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,616 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,617 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,619 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,620 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,621 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,622 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,623 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,623 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-05 02:52:44,623 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,623 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION was SAFE (7/16) [2021-07-05 02:52:44,624 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,626 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,626 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-05 02:52:44,628 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,628 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,628 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,629 INFO L82 PathProgramCache]: Analyzing trace with hash 154842714, now seen corresponding path program 1 times [2021-07-05 02:52:44,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160096692] [2021-07-05 02:52:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-05 02:52:44,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:44,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160096692] [2021-07-05 02:52:44,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160096692] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:52:44,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516924311] [2021-07-05 02:52:44,704 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:52:44,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:52:44,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,705 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:44,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,789 INFO L93 Difference]: Finished difference Result 117 states and 155 transitions. [2021-07-05 02:52:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:52:44,789 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 [2021-07-05 02:52:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,789 INFO L225 Difference]: With dead ends: 117 [2021-07-05 02:52:44,789 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,790 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-05 02:52:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,790 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) [2021-07-05 02:52:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,790 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-07-05 02:52:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,791 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,791 INFO L443 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) [2021-07-05 02:52:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,803 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,804 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,805 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,806 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,807 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,808 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,809 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,809 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,809 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,809 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-05 02:52:44,809 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,809 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION was SAFE (8/16) [2021-07-05 02:52:44,811 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,812 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,812 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-05 02:52:44,816 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,816 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,817 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,817 INFO L82 PathProgramCache]: Analyzing trace with hash 505160957, now seen corresponding path program 1 times [2021-07-05 02:52:44,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949941741] [2021-07-05 02:52:44,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:44,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949941741] [2021-07-05 02:52:44,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949941741] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:52:44,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185420319] [2021-07-05 02:52:44,862 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:52:44,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:52:44,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:44,862 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:44,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:44,914 INFO L93 Difference]: Finished difference Result 99 states and 130 transitions. [2021-07-05 02:52:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:52:44,914 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 [2021-07-05 02:52:44,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:44,915 INFO L225 Difference]: With dead ends: 99 [2021-07-05 02:52:44,915 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:44,915 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-05 02:52:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:44,915 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) [2021-07-05 02:52:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:44,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-07-05 02:52:44,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:44,915 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:44,915 INFO L443 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) [2021-07-05 02:52:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:44,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:44,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:44,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,935 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,936 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,937 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:44,938 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:44,939 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-05 02:52:44,939 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:44,939 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION was SAFE (9/16) [2021-07-05 02:52:44,939 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:44,940 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:44,940 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:44,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-07-05 02:52:44,941 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:44,941 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:44,941 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1519875391, now seen corresponding path program 1 times [2021-07-05 02:52:44,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:44,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510901422] [2021-07-05 02:52:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:44,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:44,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-07-05 02:52:44,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:44,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:44,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:44,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:44,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:44,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510901422] [2021-07-05 02:52:44,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510901422] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:44,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:44,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:44,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225270229] [2021-07-05 02:52:44,990 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:44,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:44,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:44,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:44,991 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 3.75) internal successors, (15), 4 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) [2021-07-05 02:52:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,031 INFO L93 Difference]: Finished difference Result 103 states and 136 transitions. [2021-07-05 02:52:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 02:52:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 [2021-07-05 02:52:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,032 INFO L225 Difference]: With dead ends: 103 [2021-07-05 02:52:45,032 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,033 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,033 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) [2021-07-05 02:52:45,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-07-05 02:52:45,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,033 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,034 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-07-05 02:52:45,034 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,044 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,045 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,046 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,047 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,048 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,049 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,050 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,051 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-05 02:52:45,051 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,051 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION was SAFE (10/16) [2021-07-05 02:52:45,052 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,052 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,053 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-07-05 02:52:45,055 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,055 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,055 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,056 INFO L82 PathProgramCache]: Analyzing trace with hash 128507268, now seen corresponding path program 1 times [2021-07-05 02:52:45,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556201578] [2021-07-05 02:52:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556201578] [2021-07-05 02:52:45,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556201578] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 02:52:45,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864512837] [2021-07-05 02:52:45,095 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 02:52:45,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 02:52:45,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 02:52:45,096 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:45,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,139 INFO L93 Difference]: Finished difference Result 128 states and 170 transitions. [2021-07-05 02:52:45,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:52:45,139 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 [2021-07-05 02:52:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,140 INFO L225 Difference]: With dead ends: 128 [2021-07-05 02:52:45,140 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,140 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:45,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,141 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) [2021-07-05 02:52:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-07-05 02:52:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,141 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,141 INFO L443 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) [2021-07-05 02:52:45,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,146 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,147 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,148 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,149 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,149 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,150 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,150 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,151 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,152 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,152 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,152 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,152 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,152 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-05 02:52:45,152 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,152 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION was SAFE (11/16) [2021-07-05 02:52:45,153 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,153 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,153 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-05 02:52:45,154 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,154 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,155 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,155 INFO L82 PathProgramCache]: Analyzing trace with hash -311237848, now seen corresponding path program 1 times [2021-07-05 02:52:45,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051274851] [2021-07-05 02:52:45,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051274851] [2021-07-05 02:52:45,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051274851] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:52:45,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715862280] [2021-07-05 02:52:45,178 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:52:45,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:52:45,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:45,179 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-07-05 02:52:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,246 INFO L93 Difference]: Finished difference Result 147 states and 195 transitions. [2021-07-05 02:52:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-05 02:52:45,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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 [2021-07-05 02:52:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,247 INFO L225 Difference]: With dead ends: 147 [2021-07-05 02:52:45,247 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,248 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:52:45,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,248 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) [2021-07-05 02:52:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-07-05 02:52:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,248 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,249 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-07-05 02:52:45,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,260 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,260 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,260 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,261 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,262 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,263 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,264 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,265 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,266 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,266 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-05 02:52:45,266 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,267 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION was SAFE (12/16) [2021-07-05 02:52:45,267 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,268 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,268 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-07-05 02:52:45,269 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,269 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,269 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1058434549, now seen corresponding path program 1 times [2021-07-05 02:52:45,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15556001] [2021-07-05 02:52:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15556001] [2021-07-05 02:52:45,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15556001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 02:52:45,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924851153] [2021-07-05 02:52:45,302 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:52:45,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:52:45,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:52:45,303 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 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) [2021-07-05 02:52:45,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,376 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2021-07-05 02:52:45,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 02:52:45,377 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 [2021-07-05 02:52:45,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,377 INFO L225 Difference]: With dead ends: 123 [2021-07-05 02:52:45,377 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,377 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-07-05 02:52:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,377 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) [2021-07-05 02:52:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-07-05 02:52:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,378 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,378 INFO L443 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) [2021-07-05 02:52:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,387 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,387 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,387 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,387 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,387 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,388 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,389 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,390 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,390 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-05 02:52:45,390 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,390 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION was SAFE (13/16) [2021-07-05 02:52:45,391 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,391 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,391 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-07-05 02:52:45,392 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,392 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,392 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1548271503, now seen corresponding path program 1 times [2021-07-05 02:52:45,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714249449] [2021-07-05 02:52:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714249449] [2021-07-05 02:52:45,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714249449] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 02:52:45,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830090534] [2021-07-05 02:52:45,414 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 02:52:45,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 02:52:45,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 02:52:45,415 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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) [2021-07-05 02:52:45,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,485 INFO L93 Difference]: Finished difference Result 193 states and 258 transitions. [2021-07-05 02:52:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 02:52:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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 [2021-07-05 02:52:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,485 INFO L225 Difference]: With dead ends: 193 [2021-07-05 02:52:45,485 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,486 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-05 02:52:45,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,486 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) [2021-07-05 02:52:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-07-05 02:52:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,486 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,486 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 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) [2021-07-05 02:52:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,495 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,496 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,497 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,498 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,498 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,498 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,498 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,498 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-05 02:52:45,498 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,498 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION was SAFE (14/16) [2021-07-05 02:52:45,499 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,499 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,499 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-07-05 02:52:45,500 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,500 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,500 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,500 INFO L82 PathProgramCache]: Analyzing trace with hash 751780498, now seen corresponding path program 1 times [2021-07-05 02:52:45,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590464279] [2021-07-05 02:52:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 02:52:45,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590464279] [2021-07-05 02:52:45,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590464279] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 02:52:45,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533733858] [2021-07-05 02:52:45,529 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:52:45,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:52:45,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:52:45,529 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-07-05 02:52:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,606 INFO L93 Difference]: Finished difference Result 129 states and 170 transitions. [2021-07-05 02:52:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 02:52:45,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2021-07-05 02:52:45,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,607 INFO L225 Difference]: With dead ends: 129 [2021-07-05 02:52:45,607 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,607 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 36.1ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-07-05 02:52:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,607 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) [2021-07-05 02:52:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-07-05 02:52:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,608 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,608 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2021-07-05 02:52:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,618 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,619 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,620 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,620 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,620 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,620 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,625 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,626 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,626 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,626 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,626 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,626 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,626 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-07-05 02:52:45,626 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,626 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION was SAFE (15/16) [2021-07-05 02:52:45,627 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 02:52:45,627 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 02:52:45,627 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 02:52:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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) [2021-07-05 02:52:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-07-05 02:52:45,628 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 02:52:45,628 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 02:52:45,628 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 02:52:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 02:52:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1830363126, now seen corresponding path program 1 times [2021-07-05 02:52:45,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 02:52:45,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875153549] [2021-07-05 02:52:45,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 02:52:45,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 02:52:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 02:52:45,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 02:52:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-05 02:52:45,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 02:52:45,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 02:52:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 02:52:45,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 02:52:45,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875153549] [2021-07-05 02:52:45,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875153549] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 02:52:45,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 02:52:45,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 02:52:45,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103524225] [2021-07-05 02:52:45,656 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 02:52:45,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 02:52:45,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 02:52:45,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-05 02:52:45,656 INFO L87 Difference]: Start difference. First operand has 60 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 59 states have internal predecessors, (81), 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 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-07-05 02:52:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 02:52:45,758 INFO L93 Difference]: Finished difference Result 301 states and 404 transitions. [2021-07-05 02:52:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 02:52:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2021-07-05 02:52:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 02:52:45,758 INFO L225 Difference]: With dead ends: 301 [2021-07-05 02:52:45,758 INFO L226 Difference]: Without dead ends: 0 [2021-07-05 02:52:45,759 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-05 02:52:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-05 02:52:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-05 02:52:45,759 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) [2021-07-05 02:52:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-05 02:52:45,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-07-05 02:52:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 02:52:45,759 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-05 02:52:45,759 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-07-05 02:52:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-05 02:52:45,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 02:52:45,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-05 02:52:45,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-05 02:52:45,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,776 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,776 INFO L762 garLoopResultBuilder]: For program point L217(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,776 INFO L762 garLoopResultBuilder]: For program point L151(lines 151 281) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L110(lines 110 123) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L36(lines 36 300) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L86(lines 86 127) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L20(lines 20 312) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L243(lines 243 267) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 288) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L758 garLoopResultBuilder]: At program point L293(lines 38 294) the Hoare annotation is: (and (<= (+ ULTIMATE.start_main_~main__j~0 5) ULTIMATE.start_main_~main__bufsize~0) (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__len~0) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L227(lines 227 269) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L153(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L765 garLoopResultBuilder]: At program point L310(lines 13 313) the Hoare annotation is: true [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,777 INFO L762 garLoopResultBuilder]: For program point L203(lines 203 273) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L38(lines 38 294) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L245(line 245) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L229(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L163(lines 163 279) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 112) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L758 garLoopResultBuilder]: At program point L304(lines 25 312) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L139(lines 139 283) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L98(lines 98 125) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L255(lines 255 265) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L57(lines 57 286) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L74(lines 74 129) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L758 garLoopResultBuilder]: At program point L264(lines 31 306) the Hoare annotation is: (and (or (= ULTIMATE.start_main_~main__j~0 0) (<= 1 ULTIMATE.start_main_~main__j~0)) (<= 0 ULTIMATE.start_main_~main__j~0) (<= 0 ULTIMATE.start_main_~main__i~0) (or (<= 1 ULTIMATE.start_main_~main__i~0) (= ULTIMATE.start_main_~main__i~0 0)) (<= (+ ULTIMATE.start_main_~main__limit~0 4) ULTIMATE.start_main_~main__bufsize~0)) [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point L66(lines 66 285) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-05 02:52:45,778 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L215(lines 215 271) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L141(line 141) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L191(lines 191 275) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L175(lines 175 277) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-07-05 02:52:45,779 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 229) no Hoare annotation was computed. [2021-07-05 02:52:45,779 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-07-05 02:52:45,779 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 02:52:45,779 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION was SAFE (16/16) [2021-07-05 02:52:45,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 02:52:45 BoogieIcfgContainer [2021-07-05 02:52:45,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 02:52:45,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 02:52:45,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 02:52:45,802 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 02:52:45,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 02:52:43" (3/4) ... [2021-07-05 02:52:45,804 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-05 02:52:45,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-05 02:52:45,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-05 02:52:45,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 02:52:45,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-05 02:52:45,857 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 02:52:45,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 02:52:45,858 INFO L168 Benchmark]: Toolchain (without parser) took 3071.43 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 35.1 MB in the beginning and 89.0 MB in the end (delta: -53.9 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,860 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 56.6 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:52:45,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.46 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 55.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.69 ms. Allocated memory is still 75.5 MB. Free memory was 55.9 MB in the beginning and 53.9 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 02:52:45,861 INFO L168 Benchmark]: Boogie Preprocessor took 35.37 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 52.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,861 INFO L168 Benchmark]: RCFGBuilder took 312.12 ms. Allocated memory is still 75.5 MB. Free memory was 52.6 MB in the beginning and 49.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,862 INFO L168 Benchmark]: TraceAbstraction took 2413.64 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 49.6 MB in the beginning and 29.3 MB in the end (delta: 20.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,863 INFO L168 Benchmark]: Witness Printer took 54.82 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 29.3 MB in the beginning and 89.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 02:52:45,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 56.6 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 212.46 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 34.9 MB in the beginning and 55.9 MB in the end (delta: -21.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.69 ms. Allocated memory is still 75.5 MB. Free memory was 55.9 MB in the beginning and 53.9 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.37 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 52.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 312.12 ms. Allocated memory is still 75.5 MB. Free memory was 52.6 MB in the beginning and 49.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2413.64 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 49.6 MB in the beginning and 29.3 MB in the end (delta: 20.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * Witness Printer took 54.82 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 29.3 MB in the beginning and 89.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 47]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 59]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 112]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 141]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 193]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 205]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 217]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 229]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 245]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 318.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 13.9ms, AutomataDifference: 50.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12.0ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 58 SDslu, 25 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.4ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.6ms SsaConstructionTime, 35.7ms SatisfiabilityAnalysisTime, 73.1ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 201.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.6ms, AutomataDifference: 89.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.8ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65 SDtfs, 107 SDslu, 25 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 10 HoareAnnotationTreeSize, 4 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 10.3ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 3.9ms SsaConstructionTime, 11.8ms SatisfiabilityAnalysisTime, 38.7ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 114.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.4ms, AutomataDifference: 60.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6.1ms, InitialAbstractionConstructionTime: 0.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 94 SDtfs, 87 SDslu, 82 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 6 HoareAnnotationTreeSize, 4 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 2.6ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9ms SsaConstructionTime, 6.8ms SatisfiabilityAnalysisTime, 21.8ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 133.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 57.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 8.6ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 106 SDslu, 47 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 10 HoareAnnotationTreeSize, 4 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 4.4ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0ms SsaConstructionTime, 5.1ms SatisfiabilityAnalysisTime, 44.8ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 160.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.9ms, AutomataDifference: 71.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9.9ms, InitialAbstractionConstructionTime: 0.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 139 SDslu, 94 SDs, 0 SdLazy, 48 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 3.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 6.2ms SatisfiabilityAnalysisTime, 39.0ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 108.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 54.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 8.4ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 100 SDtfs, 102 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 4.8ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9ms SsaConstructionTime, 5.6ms SatisfiabilityAnalysisTime, 24.6ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 146.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 2.0ms, AutomataDifference: 60.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 12.7ms, InitialAbstractionConstructionTime: 0.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 77 SDtfs, 85 SDslu, 48 SDs, 0 SdLazy, 40 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 6 HoareAnnotationTreeSize, 4 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 4.0ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 16.6ms SatisfiabilityAnalysisTime, 36.1ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 184.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.0ms, AutomataDifference: 85.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 11.3ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 157 SDslu, 64 SDs, 0 SdLazy, 75 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 4 FomulaSimplifications, 57 FormulaSimplificationTreeSizeReduction, 3.4ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 7.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1ms SsaConstructionTime, 19.7ms SatisfiabilityAnalysisTime, 52.1ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 127.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 3.5ms, AutomataDifference: 53.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 19.0ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 86 SDtfs, 137 SDslu, 65 SDs, 0 SdLazy, 39 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 6.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 11.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.1ms SsaConstructionTime, 7.2ms SatisfiabilityAnalysisTime, 32.2ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 111.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.7ms, AutomataDifference: 42.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9.7ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 87 SDtfs, 100 SDslu, 46 SDs, 0 SdLazy, 28 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 5.3ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0ms SsaConstructionTime, 11.1ms SatisfiabilityAnalysisTime, 34.6ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 100.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.7ms, AutomataDifference: 44.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4.0ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 117 SDtfs, 83 SDslu, 96 SDs, 0 SdLazy, 46 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 1.5ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1ms SsaConstructionTime, 14.4ms SatisfiabilityAnalysisTime, 21.1ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 113.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.6ms, AutomataDifference: 69.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 11.0ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 111 SDtfs, 142 SDslu, 180 SDs, 0 SdLazy, 116 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 2.4ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 3.3ms SatisfiabilityAnalysisTime, 16.4ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 122.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 74.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9.0ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 106 SDtfs, 156 SDslu, 110 SDs, 0 SdLazy, 70 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 37.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 90 FormulaSimplificationTreeSizeReduction, 2.9ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 5.0ms SsaConstructionTime, 3.8ms SatisfiabilityAnalysisTime, 22.3ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 106.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 71.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 8.5ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 166 SDtfs, 178 SDslu, 250 SDs, 0 SdLazy, 103 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 19 NumberOfFragments, 16 HoareAnnotationTreeSize, 4 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 2.2ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 3.2ms SatisfiabilityAnalysisTime, 16.0ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 127.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 78.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 9.9ms, InitialAbstractionConstructionTime: 0.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 109 SDtfs, 157 SDslu, 116 SDs, 0 SdLazy, 78 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 36.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 16 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 90 FormulaSimplificationTreeSizeReduction, 3.4ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9ms SsaConstructionTime, 4.0ms SatisfiabilityAnalysisTime, 22.0ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 152.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.5ms, AutomataDifference: 102.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.7ms, InitialAbstractionConstructionTime: 0.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 179 SDtfs, 323 SDslu, 397 SDs, 0 SdLazy, 146 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 22.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 27 NumberOfFragments, 16 HoareAnnotationTreeSize, 4 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 4.5ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 11.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9ms SsaConstructionTime, 4.2ms SatisfiabilityAnalysisTime, 20.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((main__j + 5 <= main__bufsize && (main__j == 0 || 1 <= main__j)) && main__i < main__len) && 0 <= main__j) && 0 <= main__i) && (1 <= main__i || main__i == 0)) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((main__j == 0 || 1 <= main__j) && 0 <= main__j) && 0 <= main__i) && (1 <= main__i || main__i == 0)) && main__limit + 4 <= main__bufsize - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (0 <= main__i && (1 <= main__i || main__i == 0)) && main__limit + 4 <= main__bufsize RESULT: Ultimate proved your program to be correct! [2021-07-05 02:52:45,907 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...