./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 755ab1a46ae9bd419f57fa80d8e9c25878a5804529700435e5fe8941ed66455d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:50:09,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:50:09,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:50:09,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:50:09,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:50:09,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:50:09,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:50:09,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:50:09,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:50:09,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:50:09,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:50:09,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:50:09,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:50:09,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:50:09,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:50:09,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:50:09,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:50:09,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:50:09,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:50:09,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:50:09,106 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:50:09,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:50:09,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:50:09,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:50:09,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:50:09,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:50:09,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:50:09,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:50:09,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:50:09,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:50:09,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:50:09,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:50:09,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:50:09,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:50:09,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:50:09,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:50:09,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:50:09,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:50:09,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:50:09,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:50:09,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:50:09,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:50:09,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:50:09,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:50:09,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:50:09,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:50:09,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:50:09,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:50:09,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:50:09,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:50:09,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:50:09,160 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:50:09,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:50:09,161 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:50:09,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:50:09,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:50:09,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:50:09,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:50:09,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:50:09,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:50:09,163 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:50:09,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:50:09,163 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:50:09,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:50:09,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:50:09,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:50:09,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:50:09,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:50:09,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:50:09,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:50:09,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:50:09,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:50:09,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:50:09,165 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:50:09,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:50:09,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:50:09,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755ab1a46ae9bd419f57fa80d8e9c25878a5804529700435e5fe8941ed66455d [2022-07-13 18:50:09,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:50:09,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:50:09,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:50:09,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:50:09,431 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:50:09,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-07-13 18:50:09,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ac9c672/fd5ea3ce418741f68ecdc187893798f7/FLAGd92bbbe03 [2022-07-13 18:50:10,077 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:50:10,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-07-13 18:50:10,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ac9c672/fd5ea3ce418741f68ecdc187893798f7/FLAGd92bbbe03 [2022-07-13 18:50:10,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1ac9c672/fd5ea3ce418741f68ecdc187893798f7 [2022-07-13 18:50:10,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:50:10,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:50:10,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:50:10,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:50:10,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:50:10,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:50:10" (1/1) ... [2022-07-13 18:50:10,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6886a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:10, skipping insertion in model container [2022-07-13 18:50:10,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:50:10" (1/1) ... [2022-07-13 18:50:10,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:50:10,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:50:11,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[14256,14269] [2022-07-13 18:50:11,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20101,20114] [2022-07-13 18:50:11,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[21333,21346] [2022-07-13 18:50:11,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23565,23578] [2022-07-13 18:50:11,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26974,26987] [2022-07-13 18:50:11,123 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[33563,33576] [2022-07-13 18:50:11,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:50:11,645 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:50:11,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[14256,14269] [2022-07-13 18:50:11,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20101,20114] [2022-07-13 18:50:11,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[21333,21346] [2022-07-13 18:50:11,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23565,23578] [2022-07-13 18:50:11,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26974,26987] [2022-07-13 18:50:11,751 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[33563,33576] [2022-07-13 18:50:12,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:50:12,074 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:50:12,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12 WrapperNode [2022-07-13 18:50:12,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:50:12,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:50:12,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:50:12,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:50:12,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,287 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9273 [2022-07-13 18:50:12,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:50:12,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:50:12,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:50:12,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:50:12,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:50:12,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:50:12,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:50:12,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:50:12,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (1/1) ... [2022-07-13 18:50:12,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:50:12,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:50:12,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 18:50:12,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 18:50:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:50:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:50:12,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:50:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:50:13,022 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:50:13,036 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:50:16,003 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:50:16,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:50:16,027 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 18:50:16,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:50:16 BoogieIcfgContainer [2022-07-13 18:50:16,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:50:16,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:50:16,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:50:16,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:50:16,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:50:10" (1/3) ... [2022-07-13 18:50:16,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a774364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:50:16, skipping insertion in model container [2022-07-13 18:50:16,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:50:12" (2/3) ... [2022-07-13 18:50:16,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a774364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:50:16, skipping insertion in model container [2022-07-13 18:50:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:50:16" (3/3) ... [2022-07-13 18:50:16,043 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-07-13 18:50:16,059 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:50:16,059 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 18:50:16,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:50:16,149 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b518a52, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41d8ff9b [2022-07-13 18:50:16,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 18:50:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 1759 states, 1752 states have (on average 1.7973744292237444) internal successors, (3149), 1758 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-13 18:50:16,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:16,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:16,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1255419244, now seen corresponding path program 1 times [2022-07-13 18:50:16,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:16,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986989740] [2022-07-13 18:50:16,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:16,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:16,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986989740] [2022-07-13 18:50:16,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986989740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:16,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:16,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:50:16,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073803982] [2022-07-13 18:50:16,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:16,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:50:16,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:50:16,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:16,703 INFO L87 Difference]: Start difference. First operand has 1759 states, 1752 states have (on average 1.7973744292237444) internal successors, (3149), 1758 states have internal predecessors, (3149), 0 states have call successors, (0), 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 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:17,197 INFO L93 Difference]: Finished difference Result 2534 states and 4443 transitions. [2022-07-13 18:50:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:50:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-07-13 18:50:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:17,231 INFO L225 Difference]: With dead ends: 2534 [2022-07-13 18:50:17,232 INFO L226 Difference]: Without dead ends: 2330 [2022-07-13 18:50:17,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:17,242 INFO L413 NwaCegarLoop]: 3632 mSDtfsCounter, 1885 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:17,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 5649 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 18:50:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-07-13 18:50:17,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2320. [2022-07-13 18:50:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 2314 states have (on average 1.3029386343993086) internal successors, (3015), 2319 states have internal predecessors, (3015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3015 transitions. [2022-07-13 18:50:17,376 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3015 transitions. Word has length 76 [2022-07-13 18:50:17,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:17,378 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3015 transitions. [2022-07-13 18:50:17,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3015 transitions. [2022-07-13 18:50:17,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-13 18:50:17,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:17,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:17,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 18:50:17,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:17,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1568234670, now seen corresponding path program 1 times [2022-07-13 18:50:17,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:17,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971003040] [2022-07-13 18:50:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:17,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971003040] [2022-07-13 18:50:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971003040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:17,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:50:17,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069108683] [2022-07-13 18:50:17,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:17,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:50:17,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:17,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:50:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:17,514 INFO L87 Difference]: Start difference. First operand 2320 states and 3015 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:17,648 INFO L93 Difference]: Finished difference Result 3253 states and 4380 transitions. [2022-07-13 18:50:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:50:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-07-13 18:50:17,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:17,659 INFO L225 Difference]: With dead ends: 3253 [2022-07-13 18:50:17,659 INFO L226 Difference]: Without dead ends: 2780 [2022-07-13 18:50:17,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:17,663 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 1185 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:17,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 3783 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:50:17,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-07-13 18:50:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2770. [2022-07-13 18:50:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2764 states have (on average 1.327424023154848) internal successors, (3669), 2769 states have internal predecessors, (3669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3669 transitions. [2022-07-13 18:50:17,788 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3669 transitions. Word has length 76 [2022-07-13 18:50:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:17,792 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 3669 transitions. [2022-07-13 18:50:17,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3669 transitions. [2022-07-13 18:50:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-13 18:50:17,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:17,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:17,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 18:50:17,805 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -801382376, now seen corresponding path program 1 times [2022-07-13 18:50:17,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131902384] [2022-07-13 18:50:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:17,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:17,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:17,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131902384] [2022-07-13 18:50:17,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131902384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:17,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:17,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:17,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591778417] [2022-07-13 18:50:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:17,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:50:17,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:50:17,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:50:17,978 INFO L87 Difference]: Start difference. First operand 2770 states and 3669 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:18,883 INFO L93 Difference]: Finished difference Result 5085 states and 6944 transitions. [2022-07-13 18:50:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:50:18,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-07-13 18:50:18,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:18,894 INFO L225 Difference]: With dead ends: 5085 [2022-07-13 18:50:18,894 INFO L226 Difference]: Without dead ends: 2918 [2022-07-13 18:50:18,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:18,901 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 5827 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5827 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:18,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5827 Valid, 1220 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 18:50:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-07-13 18:50:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2908. [2022-07-13 18:50:19,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2902 states have (on average 1.378015161957271) internal successors, (3999), 2907 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:19,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3999 transitions. [2022-07-13 18:50:19,068 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3999 transitions. Word has length 76 [2022-07-13 18:50:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:19,069 INFO L495 AbstractCegarLoop]: Abstraction has 2908 states and 3999 transitions. [2022-07-13 18:50:19,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3999 transitions. [2022-07-13 18:50:19,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-13 18:50:19,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:19,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:19,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 18:50:19,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:19,078 INFO L85 PathProgramCache]: Analyzing trace with hash -845990985, now seen corresponding path program 1 times [2022-07-13 18:50:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:19,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87403757] [2022-07-13 18:50:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:19,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:19,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87403757] [2022-07-13 18:50:19,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87403757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:19,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:19,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867869405] [2022-07-13 18:50:19,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:19,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:50:19,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:50:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:50:19,201 INFO L87 Difference]: Start difference. First operand 2908 states and 3999 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:20,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:20,113 INFO L93 Difference]: Finished difference Result 5483 states and 7696 transitions. [2022-07-13 18:50:20,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:50:20,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-07-13 18:50:20,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:20,126 INFO L225 Difference]: With dead ends: 5483 [2022-07-13 18:50:20,126 INFO L226 Difference]: Without dead ends: 3234 [2022-07-13 18:50:20,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:20,131 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 4846 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:20,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 1025 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 18:50:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2022-07-13 18:50:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3220. [2022-07-13 18:50:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3214 states have (on average 1.3942128189172371) internal successors, (4481), 3219 states have internal predecessors, (4481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4481 transitions. [2022-07-13 18:50:20,313 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4481 transitions. Word has length 77 [2022-07-13 18:50:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:20,314 INFO L495 AbstractCegarLoop]: Abstraction has 3220 states and 4481 transitions. [2022-07-13 18:50:20,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4481 transitions. [2022-07-13 18:50:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-13 18:50:20,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:20,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:20,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 18:50:20,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:20,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2068935462, now seen corresponding path program 1 times [2022-07-13 18:50:20,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:20,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78884925] [2022-07-13 18:50:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:20,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78884925] [2022-07-13 18:50:20,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78884925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:20,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:20,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:20,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403225735] [2022-07-13 18:50:20,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:20,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:50:20,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:20,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:50:20,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:50:20,413 INFO L87 Difference]: Start difference. First operand 3220 states and 4481 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:21,229 INFO L93 Difference]: Finished difference Result 7405 states and 10534 transitions. [2022-07-13 18:50:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:50:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-07-13 18:50:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:21,246 INFO L225 Difference]: With dead ends: 7405 [2022-07-13 18:50:21,247 INFO L226 Difference]: Without dead ends: 4548 [2022-07-13 18:50:21,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:21,257 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 4108 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:21,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 902 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:50:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4548 states. [2022-07-13 18:50:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4548 to 4538. [2022-07-13 18:50:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 4532 states have (on average 1.424757281553398) internal successors, (6457), 4537 states have internal predecessors, (6457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:21,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6457 transitions. [2022-07-13 18:50:21,539 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6457 transitions. Word has length 77 [2022-07-13 18:50:21,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:21,540 INFO L495 AbstractCegarLoop]: Abstraction has 4538 states and 6457 transitions. [2022-07-13 18:50:21,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:21,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6457 transitions. [2022-07-13 18:50:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 18:50:21,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:21,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:21,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 18:50:21,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:21,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1925332193, now seen corresponding path program 1 times [2022-07-13 18:50:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:21,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740919986] [2022-07-13 18:50:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:21,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:21,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:21,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740919986] [2022-07-13 18:50:21,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740919986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:21,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:21,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:50:21,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143305328] [2022-07-13 18:50:21,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:21,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:50:21,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:21,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:50:21,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:21,611 INFO L87 Difference]: Start difference. First operand 4538 states and 6457 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:22,009 INFO L93 Difference]: Finished difference Result 9533 states and 13702 transitions. [2022-07-13 18:50:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:50:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-07-13 18:50:22,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:22,035 INFO L225 Difference]: With dead ends: 9533 [2022-07-13 18:50:22,036 INFO L226 Difference]: Without dead ends: 6382 [2022-07-13 18:50:22,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:22,044 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 919 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:22,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2363 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:50:22,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2022-07-13 18:50:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 6360. [2022-07-13 18:50:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6360 states, 6354 states have (on average 1.4121813031161472) internal successors, (8973), 6359 states have internal predecessors, (8973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6360 states to 6360 states and 8973 transitions. [2022-07-13 18:50:22,433 INFO L78 Accepts]: Start accepts. Automaton has 6360 states and 8973 transitions. Word has length 78 [2022-07-13 18:50:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:22,434 INFO L495 AbstractCegarLoop]: Abstraction has 6360 states and 8973 transitions. [2022-07-13 18:50:22,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6360 states and 8973 transitions. [2022-07-13 18:50:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 18:50:22,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:22,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:22,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 18:50:22,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:22,443 INFO L85 PathProgramCache]: Analyzing trace with hash -525215666, now seen corresponding path program 1 times [2022-07-13 18:50:22,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:22,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270358977] [2022-07-13 18:50:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:22,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:22,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270358977] [2022-07-13 18:50:22,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270358977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:22,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:22,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:50:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281206318] [2022-07-13 18:50:22,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:22,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:50:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:22,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:50:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:22,502 INFO L87 Difference]: Start difference. First operand 6360 states and 8973 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:22,958 INFO L93 Difference]: Finished difference Result 13352 states and 19004 transitions. [2022-07-13 18:50:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:50:22,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-07-13 18:50:22,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:23,010 INFO L225 Difference]: With dead ends: 13352 [2022-07-13 18:50:23,010 INFO L226 Difference]: Without dead ends: 8882 [2022-07-13 18:50:23,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:23,021 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 938 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:23,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 2375 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:50:23,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8882 states. [2022-07-13 18:50:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8882 to 8854. [2022-07-13 18:50:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8854 states, 8848 states have (on average 1.398621157323689) internal successors, (12375), 8853 states have internal predecessors, (12375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8854 states to 8854 states and 12375 transitions. [2022-07-13 18:50:23,566 INFO L78 Accepts]: Start accepts. Automaton has 8854 states and 12375 transitions. Word has length 78 [2022-07-13 18:50:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:23,566 INFO L495 AbstractCegarLoop]: Abstraction has 8854 states and 12375 transitions. [2022-07-13 18:50:23,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 8854 states and 12375 transitions. [2022-07-13 18:50:23,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 18:50:23,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:23,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:23,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 18:50:23,578 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash -643699700, now seen corresponding path program 1 times [2022-07-13 18:50:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:23,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500241124] [2022-07-13 18:50:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:23,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500241124] [2022-07-13 18:50:23,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500241124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:23,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:23,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:50:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951284997] [2022-07-13 18:50:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:23,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:50:23,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:23,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:50:23,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:23,646 INFO L87 Difference]: Start difference. First operand 8854 states and 12375 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:24,338 INFO L93 Difference]: Finished difference Result 21801 states and 30896 transitions. [2022-07-13 18:50:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:50:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-07-13 18:50:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:24,377 INFO L225 Difference]: With dead ends: 21801 [2022-07-13 18:50:24,377 INFO L226 Difference]: Without dead ends: 14372 [2022-07-13 18:50:24,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:50:24,392 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 630 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:24,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2079 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:50:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14372 states. [2022-07-13 18:50:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14372 to 14362. [2022-07-13 18:50:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14362 states, 14356 states have (on average 1.401434940094734) internal successors, (20119), 14361 states have internal predecessors, (20119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14362 states to 14362 states and 20119 transitions. [2022-07-13 18:50:25,308 INFO L78 Accepts]: Start accepts. Automaton has 14362 states and 20119 transitions. Word has length 78 [2022-07-13 18:50:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:25,309 INFO L495 AbstractCegarLoop]: Abstraction has 14362 states and 20119 transitions. [2022-07-13 18:50:25,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 14362 states and 20119 transitions. [2022-07-13 18:50:25,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 18:50:25,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:25,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:25,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 18:50:25,325 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash -453781336, now seen corresponding path program 1 times [2022-07-13 18:50:25,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414033832] [2022-07-13 18:50:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:25,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:25,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:25,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414033832] [2022-07-13 18:50:25,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414033832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:25,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:25,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:50:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160520630] [2022-07-13 18:50:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:25,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:50:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:25,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:50:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:25,469 INFO L87 Difference]: Start difference. First operand 14362 states and 20119 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:29,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:29,340 INFO L93 Difference]: Finished difference Result 51429 states and 73326 transitions. [2022-07-13 18:50:29,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:50:29,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-13 18:50:29,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:29,459 INFO L225 Difference]: With dead ends: 51429 [2022-07-13 18:50:29,460 INFO L226 Difference]: Without dead ends: 46973 [2022-07-13 18:50:29,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:50:29,488 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 7486 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7486 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:29,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7486 Valid, 1794 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 18:50:29,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46973 states. [2022-07-13 18:50:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46973 to 14410. [2022-07-13 18:50:31,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14410 states, 14404 states have (on average 1.4012079977783949) internal successors, (20183), 14409 states have internal predecessors, (20183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14410 states to 14410 states and 20183 transitions. [2022-07-13 18:50:31,110 INFO L78 Accepts]: Start accepts. Automaton has 14410 states and 20183 transitions. Word has length 79 [2022-07-13 18:50:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:31,110 INFO L495 AbstractCegarLoop]: Abstraction has 14410 states and 20183 transitions. [2022-07-13 18:50:31,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 14410 states and 20183 transitions. [2022-07-13 18:50:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 18:50:31,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:31,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:31,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 18:50:31,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1721136855, now seen corresponding path program 1 times [2022-07-13 18:50:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:31,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422720608] [2022-07-13 18:50:31,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:31,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:31,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:31,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422720608] [2022-07-13 18:50:31,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422720608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:31,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:31,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:50:31,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931735029] [2022-07-13 18:50:31,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:31,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:50:31,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:31,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:50:31,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:31,250 INFO L87 Difference]: Start difference. First operand 14410 states and 20183 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:36,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:36,806 INFO L93 Difference]: Finished difference Result 59938 states and 85446 transitions. [2022-07-13 18:50:36,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:50:36,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-13 18:50:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:36,927 INFO L225 Difference]: With dead ends: 59938 [2022-07-13 18:50:36,928 INFO L226 Difference]: Without dead ends: 54166 [2022-07-13 18:50:36,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:50:36,957 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 6904 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6904 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:36,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6904 Valid, 1771 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 18:50:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54166 states. [2022-07-13 18:50:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54166 to 14590. [2022-07-13 18:50:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14590 states, 14584 states have (on average 1.4003702687877126) internal successors, (20423), 14589 states have internal predecessors, (20423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14590 states to 14590 states and 20423 transitions. [2022-07-13 18:50:38,995 INFO L78 Accepts]: Start accepts. Automaton has 14590 states and 20423 transitions. Word has length 79 [2022-07-13 18:50:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:38,995 INFO L495 AbstractCegarLoop]: Abstraction has 14590 states and 20423 transitions. [2022-07-13 18:50:38,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 14590 states and 20423 transitions. [2022-07-13 18:50:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-13 18:50:39,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:39,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:39,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 18:50:39,009 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1949723738, now seen corresponding path program 1 times [2022-07-13 18:50:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:39,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402090634] [2022-07-13 18:50:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:39,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:39,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:39,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402090634] [2022-07-13 18:50:39,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402090634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:39,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:39,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:50:39,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443784711] [2022-07-13 18:50:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:39,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:50:39,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:50:39,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:39,116 INFO L87 Difference]: Start difference. First operand 14590 states and 20423 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:45,080 INFO L93 Difference]: Finished difference Result 54630 states and 77730 transitions. [2022-07-13 18:50:45,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:50:45,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-13 18:50:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:45,178 INFO L225 Difference]: With dead ends: 54630 [2022-07-13 18:50:45,178 INFO L226 Difference]: Without dead ends: 49152 [2022-07-13 18:50:45,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:50:45,207 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 6511 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6511 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:45,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6511 Valid, 1747 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 18:50:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49152 states. [2022-07-13 18:50:47,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49152 to 14890. [2022-07-13 18:50:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14890 states, 14884 states have (on average 1.3992878258532653) internal successors, (20827), 14889 states have internal predecessors, (20827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14890 states to 14890 states and 20827 transitions. [2022-07-13 18:50:47,099 INFO L78 Accepts]: Start accepts. Automaton has 14890 states and 20827 transitions. Word has length 79 [2022-07-13 18:50:47,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:47,100 INFO L495 AbstractCegarLoop]: Abstraction has 14890 states and 20827 transitions. [2022-07-13 18:50:47,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 14890 states and 20827 transitions. [2022-07-13 18:50:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 18:50:47,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:47,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:47,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 18:50:47,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:47,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 583742384, now seen corresponding path program 1 times [2022-07-13 18:50:47,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:47,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905563688] [2022-07-13 18:50:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:47,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:47,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905563688] [2022-07-13 18:50:47,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905563688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:47,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:47,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294158476] [2022-07-13 18:50:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:47,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:50:47,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:47,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:50:47,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:50:47,205 INFO L87 Difference]: Start difference. First operand 14890 states and 20827 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:49,798 INFO L93 Difference]: Finished difference Result 34132 states and 47923 transitions. [2022-07-13 18:50:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:50:49,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-13 18:50:49,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:49,827 INFO L225 Difference]: With dead ends: 34132 [2022-07-13 18:50:49,827 INFO L226 Difference]: Without dead ends: 20114 [2022-07-13 18:50:49,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:50:49,846 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 4166 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4166 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:49,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 921 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 18:50:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20114 states. [2022-07-13 18:50:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20114 to 14890. [2022-07-13 18:50:51,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14890 states, 14884 states have (on average 1.3955925826390756) internal successors, (20772), 14889 states have internal predecessors, (20772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:51,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14890 states to 14890 states and 20772 transitions. [2022-07-13 18:50:51,272 INFO L78 Accepts]: Start accepts. Automaton has 14890 states and 20772 transitions. Word has length 80 [2022-07-13 18:50:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:51,272 INFO L495 AbstractCegarLoop]: Abstraction has 14890 states and 20772 transitions. [2022-07-13 18:50:51,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14890 states and 20772 transitions. [2022-07-13 18:50:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 18:50:51,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:51,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 18:50:51,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:51,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:51,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2109644858, now seen corresponding path program 1 times [2022-07-13 18:50:51,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:51,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779871555] [2022-07-13 18:50:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:51,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:51,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779871555] [2022-07-13 18:50:51,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779871555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:51,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:51,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:51,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283174251] [2022-07-13 18:50:51,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:51,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 18:50:51,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:51,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 18:50:51,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:50:51,388 INFO L87 Difference]: Start difference. First operand 14890 states and 20772 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:53,900 INFO L93 Difference]: Finished difference Result 22398 states and 31627 transitions. [2022-07-13 18:50:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 18:50:53,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-13 18:50:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:53,924 INFO L225 Difference]: With dead ends: 22398 [2022-07-13 18:50:53,924 INFO L226 Difference]: Without dead ends: 22396 [2022-07-13 18:50:53,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:50:53,929 INFO L413 NwaCegarLoop]: 1330 mSDtfsCounter, 150 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:53,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3784 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:50:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22396 states. [2022-07-13 18:50:55,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22396 to 14888. [2022-07-13 18:50:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14888 states, 14883 states have (on average 1.3932002956393201) internal successors, (20735), 14887 states have internal predecessors, (20735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 20735 transitions. [2022-07-13 18:50:55,386 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 20735 transitions. Word has length 80 [2022-07-13 18:50:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:55,387 INFO L495 AbstractCegarLoop]: Abstraction has 14888 states and 20735 transitions. [2022-07-13 18:50:55,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 20735 transitions. [2022-07-13 18:50:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 18:50:55,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:55,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:55,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 18:50:55,396 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash 501951513, now seen corresponding path program 1 times [2022-07-13 18:50:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:55,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116227707] [2022-07-13 18:50:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:55,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:55,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116227707] [2022-07-13 18:50:55,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116227707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:55,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:55,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:55,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909850672] [2022-07-13 18:50:55,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:55,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 18:50:55,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:55,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 18:50:55,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:50:55,479 INFO L87 Difference]: Start difference. First operand 14888 states and 20735 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:50:57,991 INFO L93 Difference]: Finished difference Result 22396 states and 31590 transitions. [2022-07-13 18:50:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 18:50:57,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-13 18:50:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:50:58,018 INFO L225 Difference]: With dead ends: 22396 [2022-07-13 18:50:58,018 INFO L226 Difference]: Without dead ends: 22394 [2022-07-13 18:50:58,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:50:58,024 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 150 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:50:58,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3779 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:50:58,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22394 states. [2022-07-13 18:50:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22394 to 14886. [2022-07-13 18:50:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14886 states, 14882 states have (on average 1.3908076871388255) internal successors, (20698), 14885 states have internal predecessors, (20698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:59,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14886 states to 14886 states and 20698 transitions. [2022-07-13 18:50:59,569 INFO L78 Accepts]: Start accepts. Automaton has 14886 states and 20698 transitions. Word has length 80 [2022-07-13 18:50:59,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:50:59,570 INFO L495 AbstractCegarLoop]: Abstraction has 14886 states and 20698 transitions. [2022-07-13 18:50:59,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:50:59,570 INFO L276 IsEmpty]: Start isEmpty. Operand 14886 states and 20698 transitions. [2022-07-13 18:50:59,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-13 18:50:59,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:50:59,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:50:59,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 18:50:59,580 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:50:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:50:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash -327033425, now seen corresponding path program 1 times [2022-07-13 18:50:59,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:50:59,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727885207] [2022-07-13 18:50:59,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:50:59,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:50:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:50:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:50:59,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:50:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727885207] [2022-07-13 18:50:59,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727885207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:50:59,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:50:59,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:50:59,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974163277] [2022-07-13 18:50:59,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:50:59,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:50:59,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:50:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:50:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:50:59,641 INFO L87 Difference]: Start difference. First operand 14886 states and 20698 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:02,389 INFO L93 Difference]: Finished difference Result 33334 states and 46324 transitions. [2022-07-13 18:51:02,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:51:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-13 18:51:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:02,415 INFO L225 Difference]: With dead ends: 33334 [2022-07-13 18:51:02,415 INFO L226 Difference]: Without dead ends: 19253 [2022-07-13 18:51:02,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:51:02,434 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 3591 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:02,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 782 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:51:02,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19253 states. [2022-07-13 18:51:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19253 to 19193. [2022-07-13 18:51:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19193 states, 19189 states have (on average 1.3771952681223618) internal successors, (26427), 19192 states have internal predecessors, (26427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19193 states to 19193 states and 26427 transitions. [2022-07-13 18:51:04,714 INFO L78 Accepts]: Start accepts. Automaton has 19193 states and 26427 transitions. Word has length 80 [2022-07-13 18:51:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:51:04,715 INFO L495 AbstractCegarLoop]: Abstraction has 19193 states and 26427 transitions. [2022-07-13 18:51:04,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 19193 states and 26427 transitions. [2022-07-13 18:51:04,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 18:51:04,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:51:04,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:51:04,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 18:51:04,725 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:51:04,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:51:04,725 INFO L85 PathProgramCache]: Analyzing trace with hash 324015783, now seen corresponding path program 1 times [2022-07-13 18:51:04,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:51:04,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365818508] [2022-07-13 18:51:04,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:51:04,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:51:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:51:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:51:04,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:51:04,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365818508] [2022-07-13 18:51:04,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365818508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:51:04,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:51:04,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:51:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703118529] [2022-07-13 18:51:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:51:04,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:51:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:51:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:51:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:51:04,814 INFO L87 Difference]: Start difference. First operand 19193 states and 26427 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) [2022-07-13 18:51:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:14,527 INFO L93 Difference]: Finished difference Result 66799 states and 92740 transitions. [2022-07-13 18:51:14,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:51:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) Word has length 81 [2022-07-13 18:51:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:14,611 INFO L225 Difference]: With dead ends: 66799 [2022-07-13 18:51:14,612 INFO L226 Difference]: Without dead ends: 57415 [2022-07-13 18:51:14,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:51:14,631 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 6149 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6149 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:14,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6149 Valid, 1712 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 18:51:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57415 states. [2022-07-13 18:51:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57415 to 19277. [2022-07-13 18:51:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19277 states, 19273 states have (on average 1.3767965547657344) internal successors, (26535), 19276 states have internal predecessors, (26535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19277 states to 19277 states and 26535 transitions. [2022-07-13 18:51:17,655 INFO L78 Accepts]: Start accepts. Automaton has 19277 states and 26535 transitions. Word has length 81 [2022-07-13 18:51:17,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:51:17,655 INFO L495 AbstractCegarLoop]: Abstraction has 19277 states and 26535 transitions. [2022-07-13 18:51:17,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) [2022-07-13 18:51:17,655 INFO L276 IsEmpty]: Start isEmpty. Operand 19277 states and 26535 transitions. [2022-07-13 18:51:17,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-13 18:51:17,665 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:51:17,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:51:17,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 18:51:17,665 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:51:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:51:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1289503009, now seen corresponding path program 1 times [2022-07-13 18:51:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:51:17,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523279166] [2022-07-13 18:51:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:51:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:51:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:51:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:51:17,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:51:17,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523279166] [2022-07-13 18:51:17,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523279166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:51:17,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:51:17,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:51:17,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021475979] [2022-07-13 18:51:17,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:51:17,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:51:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:51:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:51:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:51:17,749 INFO L87 Difference]: Start difference. First operand 19277 states and 26535 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) [2022-07-13 18:51:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:30,108 INFO L93 Difference]: Finished difference Result 70268 states and 97892 transitions. [2022-07-13 18:51:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:51:30,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) Word has length 81 [2022-07-13 18:51:30,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:30,206 INFO L225 Difference]: With dead ends: 70268 [2022-07-13 18:51:30,206 INFO L226 Difference]: Without dead ends: 62578 [2022-07-13 18:51:30,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:51:30,230 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 5896 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5896 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:30,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5896 Valid, 1713 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 18:51:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62578 states. [2022-07-13 18:51:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62578 to 19784. [2022-07-13 18:51:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19784 states, 19780 states have (on average 1.3761880687563195) internal successors, (27221), 19783 states have internal predecessors, (27221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19784 states to 19784 states and 27221 transitions. [2022-07-13 18:51:33,595 INFO L78 Accepts]: Start accepts. Automaton has 19784 states and 27221 transitions. Word has length 81 [2022-07-13 18:51:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:51:33,596 INFO L495 AbstractCegarLoop]: Abstraction has 19784 states and 27221 transitions. [2022-07-13 18:51:33,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 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) [2022-07-13 18:51:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 19784 states and 27221 transitions. [2022-07-13 18:51:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 18:51:33,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:51:33,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:51:33,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 18:51:33,607 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:51:33,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:51:33,607 INFO L85 PathProgramCache]: Analyzing trace with hash -677267389, now seen corresponding path program 1 times [2022-07-13 18:51:33,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:51:33,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941816928] [2022-07-13 18:51:33,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:51:33,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:51:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:51:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:51:33,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:51:33,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941816928] [2022-07-13 18:51:33,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941816928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:51:33,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:51:33,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:51:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205356684] [2022-07-13 18:51:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:51:33,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 18:51:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:51:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 18:51:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:33,685 INFO L87 Difference]: Start difference. First operand 19784 states and 27221 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:39,037 INFO L93 Difference]: Finished difference Result 30964 states and 43233 transitions. [2022-07-13 18:51:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 18:51:39,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-13 18:51:39,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:39,081 INFO L225 Difference]: With dead ends: 30964 [2022-07-13 18:51:39,081 INFO L226 Difference]: Without dead ends: 30962 [2022-07-13 18:51:39,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:39,094 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 149 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:39,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 3624 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:51:39,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30962 states. [2022-07-13 18:51:42,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30962 to 19782. [2022-07-13 18:51:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19782 states, 19779 states have (on average 1.37347691996562) internal successors, (27166), 19781 states have internal predecessors, (27166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19782 states to 19782 states and 27166 transitions. [2022-07-13 18:51:42,279 INFO L78 Accepts]: Start accepts. Automaton has 19782 states and 27166 transitions. Word has length 82 [2022-07-13 18:51:42,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:51:42,280 INFO L495 AbstractCegarLoop]: Abstraction has 19782 states and 27166 transitions. [2022-07-13 18:51:42,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:42,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19782 states and 27166 transitions. [2022-07-13 18:51:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-13 18:51:42,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:51:42,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:51:42,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 18:51:42,291 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:51:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:51:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2026028216, now seen corresponding path program 1 times [2022-07-13 18:51:42,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:51:42,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425782564] [2022-07-13 18:51:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:51:42,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:51:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:51:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:51:42,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:51:42,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425782564] [2022-07-13 18:51:42,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425782564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:51:42,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:51:42,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:51:42,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097558303] [2022-07-13 18:51:42,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:51:42,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 18:51:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:51:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 18:51:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:42,369 INFO L87 Difference]: Start difference. First operand 19782 states and 27166 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:48,070 INFO L93 Difference]: Finished difference Result 30962 states and 43178 transitions. [2022-07-13 18:51:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 18:51:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-13 18:51:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:48,108 INFO L225 Difference]: With dead ends: 30962 [2022-07-13 18:51:48,109 INFO L226 Difference]: Without dead ends: 30960 [2022-07-13 18:51:48,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:48,116 INFO L413 NwaCegarLoop]: 1275 mSDtfsCounter, 149 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 3618 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:48,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 3618 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:51:48,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30960 states. [2022-07-13 18:51:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30960 to 19780. [2022-07-13 18:51:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19780 states, 19778 states have (on average 1.3707654970168874) internal successors, (27111), 19779 states have internal predecessors, (27111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19780 states to 19780 states and 27111 transitions. [2022-07-13 18:51:51,433 INFO L78 Accepts]: Start accepts. Automaton has 19780 states and 27111 transitions. Word has length 82 [2022-07-13 18:51:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:51:51,434 INFO L495 AbstractCegarLoop]: Abstraction has 19780 states and 27111 transitions. [2022-07-13 18:51:51,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19780 states and 27111 transitions. [2022-07-13 18:51:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 18:51:51,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:51:51,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:51:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 18:51:51,446 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:51:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:51:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 737634818, now seen corresponding path program 1 times [2022-07-13 18:51:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:51:51,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517800088] [2022-07-13 18:51:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:51:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:51:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:51:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:51:51,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:51:51,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517800088] [2022-07-13 18:51:51,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517800088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:51:51,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:51:51,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:51:51,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005855671] [2022-07-13 18:51:51,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:51:51,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 18:51:51,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:51:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 18:51:51,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:51,518 INFO L87 Difference]: Start difference. First operand 19780 states and 27111 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:51:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:51:57,508 INFO L93 Difference]: Finished difference Result 30960 states and 43123 transitions. [2022-07-13 18:51:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 18:51:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-07-13 18:51:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:51:57,549 INFO L225 Difference]: With dead ends: 30960 [2022-07-13 18:51:57,549 INFO L226 Difference]: Without dead ends: 30958 [2022-07-13 18:51:57,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 18:51:57,558 INFO L413 NwaCegarLoop]: 1273 mSDtfsCounter, 149 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:51:57,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 3612 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:51:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2022-07-13 18:52:00,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 19778. [2022-07-13 18:52:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19778 states, 19777 states have (on average 1.3666885776406936) internal successors, (27029), 19777 states have internal predecessors, (27029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19778 states to 19778 states and 27029 transitions. [2022-07-13 18:52:00,972 INFO L78 Accepts]: Start accepts. Automaton has 19778 states and 27029 transitions. Word has length 84 [2022-07-13 18:52:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:52:00,972 INFO L495 AbstractCegarLoop]: Abstraction has 19778 states and 27029 transitions. [2022-07-13 18:52:00,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:00,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19778 states and 27029 transitions. [2022-07-13 18:52:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:52:00,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:52:00,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:52:00,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 18:52:00,987 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:52:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:52:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash 541501968, now seen corresponding path program 1 times [2022-07-13 18:52:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:52:00,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380553844] [2022-07-13 18:52:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:52:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:52:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:52:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:52:01,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:52:01,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380553844] [2022-07-13 18:52:01,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380553844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:52:01,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:52:01,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:52:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521933781] [2022-07-13 18:52:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:52:01,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:52:01,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:52:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:52:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:52:01,111 INFO L87 Difference]: Start difference. First operand 19778 states and 27029 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:52:12,946 INFO L93 Difference]: Finished difference Result 59885 states and 83810 transitions. [2022-07-13 18:52:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:52:12,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-07-13 18:52:12,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:52:13,023 INFO L225 Difference]: With dead ends: 59885 [2022-07-13 18:52:13,024 INFO L226 Difference]: Without dead ends: 48637 [2022-07-13 18:52:13,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 18:52:13,044 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 5886 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:52:13,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5886 Valid, 3082 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 18:52:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48637 states. [2022-07-13 18:52:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48637 to 19744. [2022-07-13 18:52:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19744 states, 19743 states have (on average 1.3664083472623207) internal successors, (26977), 19743 states have internal predecessors, (26977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19744 states to 19744 states and 26977 transitions. [2022-07-13 18:52:17,015 INFO L78 Accepts]: Start accepts. Automaton has 19744 states and 26977 transitions. Word has length 85 [2022-07-13 18:52:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:52:17,015 INFO L495 AbstractCegarLoop]: Abstraction has 19744 states and 26977 transitions. [2022-07-13 18:52:17,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 19744 states and 26977 transitions. [2022-07-13 18:52:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:52:17,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:52:17,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:52:17,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 18:52:17,034 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:52:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:52:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -777579654, now seen corresponding path program 1 times [2022-07-13 18:52:17,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:52:17,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181216568] [2022-07-13 18:52:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:52:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:52:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:52:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:52:17,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:52:17,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181216568] [2022-07-13 18:52:17,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181216568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:52:17,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:52:17,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:52:17,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794553795] [2022-07-13 18:52:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:52:17,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:52:17,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:52:17,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:52:17,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:52:17,113 INFO L87 Difference]: Start difference. First operand 19744 states and 26977 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:36,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:52:36,140 INFO L93 Difference]: Finished difference Result 77232 states and 107970 transitions. [2022-07-13 18:52:36,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:52:36,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-07-13 18:52:36,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:52:36,251 INFO L225 Difference]: With dead ends: 77232 [2022-07-13 18:52:36,251 INFO L226 Difference]: Without dead ends: 69668 [2022-07-13 18:52:36,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:52:36,274 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 5126 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 18:52:36,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 1901 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 18:52:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69668 states. [2022-07-13 18:52:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69668 to 19804. [2022-07-13 18:52:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19804 states, 19803 states have (on average 1.3663081351310407) internal successors, (27057), 19803 states have internal predecessors, (27057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19804 states to 19804 states and 27057 transitions. [2022-07-13 18:52:40,616 INFO L78 Accepts]: Start accepts. Automaton has 19804 states and 27057 transitions. Word has length 85 [2022-07-13 18:52:40,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:52:40,617 INFO L495 AbstractCegarLoop]: Abstraction has 19804 states and 27057 transitions. [2022-07-13 18:52:40,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:40,617 INFO L276 IsEmpty]: Start isEmpty. Operand 19804 states and 27057 transitions. [2022-07-13 18:52:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:52:40,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:52:40,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:52:40,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 18:52:40,629 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:52:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:52:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1961391530, now seen corresponding path program 1 times [2022-07-13 18:52:40,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:52:40,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054780725] [2022-07-13 18:52:40,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:52:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:52:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:52:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:52:40,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:52:40,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054780725] [2022-07-13 18:52:40,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054780725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:52:40,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:52:40,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:52:40,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301393909] [2022-07-13 18:52:40,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:52:40,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:52:40,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:52:40,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:52:40,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:52:40,739 INFO L87 Difference]: Start difference. First operand 19804 states and 27057 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:52:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:52:59,001 INFO L93 Difference]: Finished difference Result 69798 states and 97151 transitions. [2022-07-13 18:52:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:52:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-07-13 18:52:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:52:59,109 INFO L225 Difference]: With dead ends: 69798 [2022-07-13 18:52:59,109 INFO L226 Difference]: Without dead ends: 62326 [2022-07-13 18:52:59,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:52:59,135 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 4931 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:52:59,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 1862 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 18:52:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62326 states. [2022-07-13 18:53:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62326 to 19894. [2022-07-13 18:53:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19894 states, 19893 states have (on average 1.3661589503845575) internal successors, (27177), 19893 states have internal predecessors, (27177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19894 states to 19894 states and 27177 transitions. [2022-07-13 18:53:03,745 INFO L78 Accepts]: Start accepts. Automaton has 19894 states and 27177 transitions. Word has length 85 [2022-07-13 18:53:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:53:03,745 INFO L495 AbstractCegarLoop]: Abstraction has 19894 states and 27177 transitions. [2022-07-13 18:53:03,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19894 states and 27177 transitions. [2022-07-13 18:53:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:53:03,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:53:03,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:53:03,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 18:53:03,758 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:53:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:53:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 385836517, now seen corresponding path program 1 times [2022-07-13 18:53:03,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:53:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162737377] [2022-07-13 18:53:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:53:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:53:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:53:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:53:03,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:53:03,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162737377] [2022-07-13 18:53:03,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162737377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:53:03,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:53:03,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:53:03,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273054536] [2022-07-13 18:53:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:53:03,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:53:03,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:53:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:53:03,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:53:03,879 INFO L87 Difference]: Start difference. First operand 19894 states and 27177 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:53:23,359 INFO L93 Difference]: Finished difference Result 74372 states and 104305 transitions. [2022-07-13 18:53:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 18:53:23,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-07-13 18:53:23,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:53:23,457 INFO L225 Difference]: With dead ends: 74372 [2022-07-13 18:53:23,457 INFO L226 Difference]: Without dead ends: 63180 [2022-07-13 18:53:23,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-13 18:53:23,488 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 4313 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 2833 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4313 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:53:23,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4313 Valid, 3804 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2833 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 18:53:23,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63180 states. [2022-07-13 18:53:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63180 to 19888. [2022-07-13 18:53:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19888 states, 19887 states have (on average 1.3656660129732991) internal successors, (27159), 19887 states have internal predecessors, (27159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19888 states to 19888 states and 27159 transitions. [2022-07-13 18:53:28,287 INFO L78 Accepts]: Start accepts. Automaton has 19888 states and 27159 transitions. Word has length 85 [2022-07-13 18:53:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:53:28,287 INFO L495 AbstractCegarLoop]: Abstraction has 19888 states and 27159 transitions. [2022-07-13 18:53:28,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 19888 states and 27159 transitions. [2022-07-13 18:53:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:53:28,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:53:28,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:53:28,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 18:53:28,303 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:53:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:53:28,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1096211298, now seen corresponding path program 1 times [2022-07-13 18:53:28,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:53:28,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875687962] [2022-07-13 18:53:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:53:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:53:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:53:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:53:28,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:53:28,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875687962] [2022-07-13 18:53:28,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875687962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:53:28,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:53:28,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 18:53:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148346156] [2022-07-13 18:53:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:53:28,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 18:53:28,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:53:28,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 18:53:28,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-13 18:53:28,441 INFO L87 Difference]: Start difference. First operand 19888 states and 27159 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:53:46,971 INFO L93 Difference]: Finished difference Result 63059 states and 86988 transitions. [2022-07-13 18:53:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 18:53:46,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-07-13 18:53:46,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:53:47,072 INFO L225 Difference]: With dead ends: 63059 [2022-07-13 18:53:47,072 INFO L226 Difference]: Without dead ends: 59142 [2022-07-13 18:53:47,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-07-13 18:53:47,089 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 3442 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 4339 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:53:47,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 4339 Invalid, 3641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 18:53:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59142 states. [2022-07-13 18:53:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59142 to 19892. [2022-07-13 18:53:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19892 states, 19891 states have (on average 1.3655422050173445) internal successors, (27162), 19891 states have internal predecessors, (27162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 27162 transitions. [2022-07-13 18:53:52,189 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 27162 transitions. Word has length 85 [2022-07-13 18:53:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:53:52,189 INFO L495 AbstractCegarLoop]: Abstraction has 19892 states and 27162 transitions. [2022-07-13 18:53:52,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:53:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 27162 transitions. [2022-07-13 18:53:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 18:53:52,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:53:52,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:53:52,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 18:53:52,202 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:53:52,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:53:52,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1328007044, now seen corresponding path program 1 times [2022-07-13 18:53:52,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:53:52,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68764445] [2022-07-13 18:53:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:53:52,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:53:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:53:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:53:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:53:52,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68764445] [2022-07-13 18:53:52,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68764445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:53:52,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:53:52,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:53:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266688158] [2022-07-13 18:53:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:53:52,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:53:52,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:53:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:53:52,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:53:52,317 INFO L87 Difference]: Start difference. First operand 19892 states and 27162 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:54:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:54:08,568 INFO L93 Difference]: Finished difference Result 60129 states and 84149 transitions. [2022-07-13 18:54:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:54:08,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-07-13 18:54:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:54:08,641 INFO L225 Difference]: With dead ends: 60129 [2022-07-13 18:54:08,641 INFO L226 Difference]: Without dead ends: 48489 [2022-07-13 18:54:08,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 18:54:08,657 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 6006 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6006 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:54:08,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6006 Valid, 3025 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 18:54:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48489 states. [2022-07-13 18:54:14,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48489 to 19650. [2022-07-13 18:54:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19650 states, 19649 states have (on average 1.3655656776426282) internal successors, (26832), 19649 states have internal predecessors, (26832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:54:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19650 states to 19650 states and 26832 transitions. [2022-07-13 18:54:14,090 INFO L78 Accepts]: Start accepts. Automaton has 19650 states and 26832 transitions. Word has length 86 [2022-07-13 18:54:14,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:54:14,090 INFO L495 AbstractCegarLoop]: Abstraction has 19650 states and 26832 transitions. [2022-07-13 18:54:14,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:54:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 19650 states and 26832 transitions. [2022-07-13 18:54:14,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 18:54:14,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:54:14,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:54:14,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 18:54:14,102 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-13 18:54:14,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:54:14,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1513152942, now seen corresponding path program 1 times [2022-07-13 18:54:14,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:54:14,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759182554] [2022-07-13 18:54:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:54:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:54:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:54:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:54:14,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:54:14,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759182554] [2022-07-13 18:54:14,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759182554] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:54:14,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:54:14,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 18:54:14,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68504148] [2022-07-13 18:54:14,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:54:14,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 18:54:14,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:54:14,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 18:54:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 18:54:14,375 INFO L87 Difference]: Start difference. First operand 19650 states and 26832 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)