./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 6c24879c 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-?-6c24879 [2022-07-12 07:10:00,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:10:00,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:10:00,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:10:00,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:10:00,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:10:00,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:10:00,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:10:00,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:10:00,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:10:00,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:10:00,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:10:00,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:10:00,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:10:00,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:10:00,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:10:00,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:10:00,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:10:00,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:10:00,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:10:00,263 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:10:00,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:10:00,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:10:00,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:10:00,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:10:00,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:10:00,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:10:00,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:10:00,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:10:00,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:10:00,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:10:00,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:10:00,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:10:00,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:10:00,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:10:00,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:10:00,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:10:00,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:10:00,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:10:00,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:10:00,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:10:00,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:10:00,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:10:00,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:10:00,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:10:00,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:10:00,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:10:00,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:10:00,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:10:00,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:10:00,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:10:00,325 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:10:00,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:10:00,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:10:00,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:10:00,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:10:00,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:10:00,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:10:00,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:10:00,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:10:00,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:10:00,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:10:00,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:10:00,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:10:00,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:10:00,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:10:00,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:10:00,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:10:00,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:10:00,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:10:00,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:10:00,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:10:00,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:10:00,332 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:10:00,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:10:00,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:10:00,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755ab1a46ae9bd419f57fa80d8e9c25878a5804529700435e5fe8941ed66455d [2022-07-12 07:10:00,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:10:00,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:10:00,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:10:00,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:10:00,606 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:10:00,607 INFO L432 ainManager$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 [2022-07-12 07:10:00,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a179d8/1dcce093c48841b7a8ab5ab755729c06/FLAG8344ce18f [2022-07-12 07:10:01,372 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:10:01,373 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 [2022-07-12 07:10:01,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a179d8/1dcce093c48841b7a8ab5ab755729c06/FLAG8344ce18f [2022-07-12 07:10:01,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327a179d8/1dcce093c48841b7a8ab5ab755729c06 [2022-07-12 07:10:01,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:10:01,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:10:01,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:10:01,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:10:01,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:10:01,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:10:01" (1/1) ... [2022-07-12 07:10:01,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a6dea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:01, skipping insertion in model container [2022-07-12 07:10:01,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:10:01" (1/1) ... [2022-07-12 07:10:01,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:10:01,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:10:02,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[14256,14269] [2022-07-12 07:10:02,113 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] [2022-07-12 07:10:02,130 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] [2022-07-12 07:10:02,142 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] [2022-07-12 07:10:02,157 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] [2022-07-12 07:10:02,195 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] [2022-07-12 07:10:02,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:10:02,788 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:10:02,834 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] [2022-07-12 07:10:02,846 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] [2022-07-12 07:10:02,851 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] [2022-07-12 07:10:02,858 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] [2022-07-12 07:10:02,870 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] [2022-07-12 07:10:02,889 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] [2022-07-12 07:10:03,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:10:03,292 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:10:03,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03 WrapperNode [2022-07-12 07:10:03,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:10:03,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:10:03,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:10:03,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:10:03,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,545 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9273 [2022-07-12 07:10:03,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:10:03,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:10:03,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:10:03,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:10:03,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:10:03,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:10:03,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:10:03,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:10:03,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (1/1) ... [2022-07-12 07:10:03,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:10:03,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:10:03,804 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) [2022-07-12 07:10:03,816 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 [2022-07-12 07:10:03,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:10:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:10:03,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:10:03,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:10:04,270 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:10:04,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:10:07,365 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:10:07,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:10:07,387 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:10:07,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:10:07 BoogieIcfgContainer [2022-07-12 07:10:07,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:10:07,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:10:07,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:10:07,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:10:07,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:10:01" (1/3) ... [2022-07-12 07:10:07,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422cc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:10:07, skipping insertion in model container [2022-07-12 07:10:07,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:10:03" (2/3) ... [2022-07-12 07:10:07,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422cc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:10:07, skipping insertion in model container [2022-07-12 07:10:07,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:10:07" (3/3) ... [2022-07-12 07:10:07,398 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-07-12 07:10:07,410 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:10:07,411 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-12 07:10:07,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:10:07,499 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@130a609c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3ec68088 [2022-07-12 07:10:07,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-12 07:10:07,509 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) [2022-07-12 07:10:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:10:07,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:07,559 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] [2022-07-12 07:10:07,560 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)] === [2022-07-12 07:10:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1255419244, now seen corresponding path program 1 times [2022-07-12 07:10:07,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:07,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804904342] [2022-07-12 07:10:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:08,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:08,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:08,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804904342] [2022-07-12 07:10:08,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804904342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:08,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:08,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:10:08,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21113754] [2022-07-12 07:10:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:08,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:10:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:10:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:10:08,050 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) [2022-07-12 07:10:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:08,505 INFO L93 Difference]: Finished difference Result 2534 states and 4443 transitions. [2022-07-12 07:10:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:10:08,508 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 [2022-07-12 07:10:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:08,538 INFO L225 Difference]: With dead ends: 2534 [2022-07-12 07:10:08,538 INFO L226 Difference]: Without dead ends: 2330 [2022-07-12 07:10:08,543 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 [2022-07-12 07:10:08,546 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 [2022-07-12 07:10:08,547 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] [2022-07-12 07:10:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2022-07-12 07:10:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2320. [2022-07-12 07:10:08,669 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) [2022-07-12 07:10:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3015 transitions. [2022-07-12 07:10:08,679 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3015 transitions. Word has length 76 [2022-07-12 07:10:08,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:08,680 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3015 transitions. [2022-07-12 07:10:08,680 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) [2022-07-12 07:10:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3015 transitions. [2022-07-12 07:10:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:10:08,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:08,687 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] [2022-07-12 07:10:08,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:10:08,688 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)] === [2022-07-12 07:10:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1568234670, now seen corresponding path program 1 times [2022-07-12 07:10:08,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:08,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726542114] [2022-07-12 07:10:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:08,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726542114] [2022-07-12 07:10:08,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726542114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:08,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:08,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:10:08,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349650383] [2022-07-12 07:10:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:08,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:10:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:08,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:10:08,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:10:08,877 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) [2022-07-12 07:10:09,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:09,058 INFO L93 Difference]: Finished difference Result 3253 states and 4380 transitions. [2022-07-12 07:10:09,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:10:09,059 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 [2022-07-12 07:10:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:09,069 INFO L225 Difference]: With dead ends: 3253 [2022-07-12 07:10:09,069 INFO L226 Difference]: Without dead ends: 2780 [2022-07-12 07:10:09,074 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 [2022-07-12 07:10:09,075 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 [2022-07-12 07:10:09,076 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] [2022-07-12 07:10:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-07-12 07:10:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2770. [2022-07-12 07:10:09,167 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) [2022-07-12 07:10:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3669 transitions. [2022-07-12 07:10:09,179 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3669 transitions. Word has length 76 [2022-07-12 07:10:09,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:09,180 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 3669 transitions. [2022-07-12 07:10:09,180 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) [2022-07-12 07:10:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3669 transitions. [2022-07-12 07:10:09,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-12 07:10:09,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:09,187 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] [2022-07-12 07:10:09,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:10:09,188 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)] === [2022-07-12 07:10:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:09,189 INFO L85 PathProgramCache]: Analyzing trace with hash -801382376, now seen corresponding path program 1 times [2022-07-12 07:10:09,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:09,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842965233] [2022-07-12 07:10:09,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:09,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:09,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:09,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:09,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842965233] [2022-07-12 07:10:09,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842965233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:09,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:09,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:09,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271364737] [2022-07-12 07:10:09,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:09,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:10:09,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:09,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:10:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:10:09,329 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) [2022-07-12 07:10:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:10,332 INFO L93 Difference]: Finished difference Result 5085 states and 6944 transitions. [2022-07-12 07:10:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:10:10,333 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 [2022-07-12 07:10:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:10,344 INFO L225 Difference]: With dead ends: 5085 [2022-07-12 07:10:10,344 INFO L226 Difference]: Without dead ends: 2918 [2022-07-12 07:10:10,348 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 [2022-07-12 07:10:10,349 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 5827 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:10,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5827 Valid, 1220 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 07:10:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-07-12 07:10:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2908. [2022-07-12 07:10:10,471 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) [2022-07-12 07:10:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3999 transitions. [2022-07-12 07:10:10,482 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3999 transitions. Word has length 76 [2022-07-12 07:10:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:10,483 INFO L495 AbstractCegarLoop]: Abstraction has 2908 states and 3999 transitions. [2022-07-12 07:10:10,483 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) [2022-07-12 07:10:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3999 transitions. [2022-07-12 07:10:10,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 07:10:10,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:10,490 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] [2022-07-12 07:10:10,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:10:10,490 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)] === [2022-07-12 07:10:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash -845990985, now seen corresponding path program 1 times [2022-07-12 07:10:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:10,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685004395] [2022-07-12 07:10:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:10,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:10,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685004395] [2022-07-12 07:10:10,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685004395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:10,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:10,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:10,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103782372] [2022-07-12 07:10:10,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:10,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:10:10,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:10,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:10:10,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:10:10,592 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) [2022-07-12 07:10:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:11,519 INFO L93 Difference]: Finished difference Result 5483 states and 7696 transitions. [2022-07-12 07:10:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:10:11,520 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 [2022-07-12 07:10:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:11,532 INFO L225 Difference]: With dead ends: 5483 [2022-07-12 07:10:11,532 INFO L226 Difference]: Without dead ends: 3234 [2022-07-12 07:10:11,536 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 [2022-07-12 07:10:11,537 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 [2022-07-12 07:10:11,538 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] [2022-07-12 07:10:11,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2022-07-12 07:10:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 3220. [2022-07-12 07:10:11,725 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) [2022-07-12 07:10:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4481 transitions. [2022-07-12 07:10:11,734 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4481 transitions. Word has length 77 [2022-07-12 07:10:11,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:11,734 INFO L495 AbstractCegarLoop]: Abstraction has 3220 states and 4481 transitions. [2022-07-12 07:10:11,735 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) [2022-07-12 07:10:11,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4481 transitions. [2022-07-12 07:10:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 07:10:11,740 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:11,740 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] [2022-07-12 07:10:11,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:10:11,741 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)] === [2022-07-12 07:10:11,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2068935462, now seen corresponding path program 1 times [2022-07-12 07:10:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:11,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879846075] [2022-07-12 07:10:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:11,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879846075] [2022-07-12 07:10:11,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879846075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:11,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:11,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248397167] [2022-07-12 07:10:11,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:11,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:10:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:10:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:10:11,832 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) [2022-07-12 07:10:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:12,599 INFO L93 Difference]: Finished difference Result 7405 states and 10534 transitions. [2022-07-12 07:10:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:10:12,600 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 [2022-07-12 07:10:12,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:12,616 INFO L225 Difference]: With dead ends: 7405 [2022-07-12 07:10:12,617 INFO L226 Difference]: Without dead ends: 4548 [2022-07-12 07:10:12,622 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 [2022-07-12 07:10:12,626 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:12,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 902 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:10:12,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4548 states. [2022-07-12 07:10:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4548 to 4538. [2022-07-12 07:10:12,861 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) [2022-07-12 07:10:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 6457 transitions. [2022-07-12 07:10:12,876 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 6457 transitions. Word has length 77 [2022-07-12 07:10:12,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:12,877 INFO L495 AbstractCegarLoop]: Abstraction has 4538 states and 6457 transitions. [2022-07-12 07:10:12,882 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) [2022-07-12 07:10:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 6457 transitions. [2022-07-12 07:10:12,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:10:12,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:12,891 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] [2022-07-12 07:10:12,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:10:12,891 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)] === [2022-07-12 07:10:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:12,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1925332193, now seen corresponding path program 1 times [2022-07-12 07:10:12,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:12,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724572929] [2022-07-12 07:10:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:12,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:12,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:12,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724572929] [2022-07-12 07:10:12,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724572929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:12,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:12,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:10:12,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997836238] [2022-07-12 07:10:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:12,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:10:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:12,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:10:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:10:12,978 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) [2022-07-12 07:10:13,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:13,343 INFO L93 Difference]: Finished difference Result 9533 states and 13702 transitions. [2022-07-12 07:10:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:10:13,344 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 [2022-07-12 07:10:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:13,366 INFO L225 Difference]: With dead ends: 9533 [2022-07-12 07:10:13,367 INFO L226 Difference]: Without dead ends: 6382 [2022-07-12 07:10:13,374 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 [2022-07-12 07:10:13,378 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 [2022-07-12 07:10:13,378 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] [2022-07-12 07:10:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2022-07-12 07:10:13,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 6360. [2022-07-12 07:10:13,748 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) [2022-07-12 07:10:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6360 states to 6360 states and 8973 transitions. [2022-07-12 07:10:13,768 INFO L78 Accepts]: Start accepts. Automaton has 6360 states and 8973 transitions. Word has length 78 [2022-07-12 07:10:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:13,769 INFO L495 AbstractCegarLoop]: Abstraction has 6360 states and 8973 transitions. [2022-07-12 07:10:13,770 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) [2022-07-12 07:10:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 6360 states and 8973 transitions. [2022-07-12 07:10:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:10:13,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:13,781 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] [2022-07-12 07:10:13,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:10:13,781 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)] === [2022-07-12 07:10:13,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:13,782 INFO L85 PathProgramCache]: Analyzing trace with hash -525215666, now seen corresponding path program 1 times [2022-07-12 07:10:13,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:13,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538291732] [2022-07-12 07:10:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:13,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:13,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:13,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538291732] [2022-07-12 07:10:13,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538291732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:13,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:13,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:10:13,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469452509] [2022-07-12 07:10:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:13,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:10:13,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:10:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:10:13,900 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) [2022-07-12 07:10:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:14,377 INFO L93 Difference]: Finished difference Result 13352 states and 19004 transitions. [2022-07-12 07:10:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:10:14,377 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 [2022-07-12 07:10:14,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:14,423 INFO L225 Difference]: With dead ends: 13352 [2022-07-12 07:10:14,423 INFO L226 Difference]: Without dead ends: 8882 [2022-07-12 07:10:14,434 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 [2022-07-12 07:10:14,436 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 [2022-07-12 07:10:14,436 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] [2022-07-12 07:10:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8882 states. [2022-07-12 07:10:14,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8882 to 8854. [2022-07-12 07:10:14,979 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) [2022-07-12 07:10:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8854 states to 8854 states and 12375 transitions. [2022-07-12 07:10:15,003 INFO L78 Accepts]: Start accepts. Automaton has 8854 states and 12375 transitions. Word has length 78 [2022-07-12 07:10:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:15,003 INFO L495 AbstractCegarLoop]: Abstraction has 8854 states and 12375 transitions. [2022-07-12 07:10:15,003 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) [2022-07-12 07:10:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8854 states and 12375 transitions. [2022-07-12 07:10:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-12 07:10:15,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:15,016 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] [2022-07-12 07:10:15,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:10:15,016 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)] === [2022-07-12 07:10:15,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash -643699700, now seen corresponding path program 1 times [2022-07-12 07:10:15,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:15,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665173769] [2022-07-12 07:10:15,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:15,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:15,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:15,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665173769] [2022-07-12 07:10:15,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665173769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:15,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:15,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:10:15,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115730129] [2022-07-12 07:10:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:15,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:10:15,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:10:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:10:15,104 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) [2022-07-12 07:10:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:15,879 INFO L93 Difference]: Finished difference Result 21801 states and 30896 transitions. [2022-07-12 07:10:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:10:15,880 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 [2022-07-12 07:10:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:15,914 INFO L225 Difference]: With dead ends: 21801 [2022-07-12 07:10:15,915 INFO L226 Difference]: Without dead ends: 14372 [2022-07-12 07:10:15,931 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 [2022-07-12 07:10:15,932 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 [2022-07-12 07:10:15,933 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] [2022-07-12 07:10:15,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14372 states. [2022-07-12 07:10:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14372 to 14362. [2022-07-12 07:10:16,693 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) [2022-07-12 07:10:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14362 states to 14362 states and 20119 transitions. [2022-07-12 07:10:16,728 INFO L78 Accepts]: Start accepts. Automaton has 14362 states and 20119 transitions. Word has length 78 [2022-07-12 07:10:16,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:16,728 INFO L495 AbstractCegarLoop]: Abstraction has 14362 states and 20119 transitions. [2022-07-12 07:10:16,728 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) [2022-07-12 07:10:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 14362 states and 20119 transitions. [2022-07-12 07:10:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 07:10:16,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:16,745 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] [2022-07-12 07:10:16,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:10:16,745 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)] === [2022-07-12 07:10:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash -453781336, now seen corresponding path program 1 times [2022-07-12 07:10:16,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:16,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767687717] [2022-07-12 07:10:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:16,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:16,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767687717] [2022-07-12 07:10:16,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767687717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:16,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:16,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:10:16,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738848074] [2022-07-12 07:10:16,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:16,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:10:16,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:10:16,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:10:16,880 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) [2022-07-12 07:10:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:20,752 INFO L93 Difference]: Finished difference Result 51429 states and 73326 transitions. [2022-07-12 07:10:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:10:20,752 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 [2022-07-12 07:10:20,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:20,874 INFO L225 Difference]: With dead ends: 51429 [2022-07-12 07:10:20,874 INFO L226 Difference]: Without dead ends: 46973 [2022-07-12 07:10:20,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:10:20,903 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:20,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7486 Valid, 1794 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 07:10:20,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46973 states. [2022-07-12 07:10:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46973 to 14410. [2022-07-12 07:10:22,191 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) [2022-07-12 07:10:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14410 states to 14410 states and 20183 transitions. [2022-07-12 07:10:22,221 INFO L78 Accepts]: Start accepts. Automaton has 14410 states and 20183 transitions. Word has length 79 [2022-07-12 07:10:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:22,222 INFO L495 AbstractCegarLoop]: Abstraction has 14410 states and 20183 transitions. [2022-07-12 07:10:22,222 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) [2022-07-12 07:10:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 14410 states and 20183 transitions. [2022-07-12 07:10:22,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 07:10:22,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:22,236 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] [2022-07-12 07:10:22,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:10:22,237 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)] === [2022-07-12 07:10:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:22,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1721136855, now seen corresponding path program 1 times [2022-07-12 07:10:22,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:22,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594363576] [2022-07-12 07:10:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:22,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:22,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594363576] [2022-07-12 07:10:22,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594363576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:22,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:22,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:10:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805953439] [2022-07-12 07:10:22,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:22,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:10:22,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:22,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:10:22,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:10:22,365 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) [2022-07-12 07:10:27,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:27,986 INFO L93 Difference]: Finished difference Result 59938 states and 85446 transitions. [2022-07-12 07:10:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:10:27,987 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 [2022-07-12 07:10:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:28,114 INFO L225 Difference]: With dead ends: 59938 [2022-07-12 07:10:28,114 INFO L226 Difference]: Without dead ends: 54166 [2022-07-12 07:10:28,144 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 [2022-07-12 07:10:28,146 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 [2022-07-12 07:10:28,146 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] [2022-07-12 07:10:28,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54166 states. [2022-07-12 07:10:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54166 to 14590. [2022-07-12 07:10:29,672 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) [2022-07-12 07:10:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14590 states to 14590 states and 20423 transitions. [2022-07-12 07:10:29,703 INFO L78 Accepts]: Start accepts. Automaton has 14590 states and 20423 transitions. Word has length 79 [2022-07-12 07:10:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:29,703 INFO L495 AbstractCegarLoop]: Abstraction has 14590 states and 20423 transitions. [2022-07-12 07:10:29,704 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) [2022-07-12 07:10:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 14590 states and 20423 transitions. [2022-07-12 07:10:29,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-12 07:10:29,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:29,716 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] [2022-07-12 07:10:29,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:10:29,717 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)] === [2022-07-12 07:10:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:29,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1949723738, now seen corresponding path program 1 times [2022-07-12 07:10:29,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:29,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141606636] [2022-07-12 07:10:29,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:29,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:29,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:29,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141606636] [2022-07-12 07:10:29,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141606636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:29,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:29,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:10:29,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213324727] [2022-07-12 07:10:29,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:29,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:10:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:29,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:10:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:10:29,810 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) [2022-07-12 07:10:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:36,261 INFO L93 Difference]: Finished difference Result 54630 states and 77730 transitions. [2022-07-12 07:10:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:10:36,261 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 [2022-07-12 07:10:36,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:36,366 INFO L225 Difference]: With dead ends: 54630 [2022-07-12 07:10:36,367 INFO L226 Difference]: Without dead ends: 49152 [2022-07-12 07:10:36,392 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 [2022-07-12 07:10:36,393 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 [2022-07-12 07:10:36,394 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] [2022-07-12 07:10:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49152 states. [2022-07-12 07:10:38,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49152 to 14890. [2022-07-12 07:10:38,025 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) [2022-07-12 07:10:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14890 states to 14890 states and 20827 transitions. [2022-07-12 07:10:38,053 INFO L78 Accepts]: Start accepts. Automaton has 14890 states and 20827 transitions. Word has length 79 [2022-07-12 07:10:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:38,053 INFO L495 AbstractCegarLoop]: Abstraction has 14890 states and 20827 transitions. [2022-07-12 07:10:38,053 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) [2022-07-12 07:10:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 14890 states and 20827 transitions. [2022-07-12 07:10:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:10:38,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:38,067 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] [2022-07-12 07:10:38,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:10:38,067 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)] === [2022-07-12 07:10:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:38,068 INFO L85 PathProgramCache]: Analyzing trace with hash 583742384, now seen corresponding path program 1 times [2022-07-12 07:10:38,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:38,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74122755] [2022-07-12 07:10:38,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:38,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:38,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:38,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74122755] [2022-07-12 07:10:38,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74122755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:38,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:38,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:38,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714881689] [2022-07-12 07:10:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:38,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:10:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:10:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:10:38,135 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) [2022-07-12 07:10:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:40,487 INFO L93 Difference]: Finished difference Result 34132 states and 47923 transitions. [2022-07-12 07:10:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:10:40,488 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 [2022-07-12 07:10:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:40,526 INFO L225 Difference]: With dead ends: 34132 [2022-07-12 07:10:40,526 INFO L226 Difference]: Without dead ends: 20114 [2022-07-12 07:10:40,554 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 [2022-07-12 07:10:40,555 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:40,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4166 Valid, 921 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:10:40,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20114 states. [2022-07-12 07:10:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20114 to 14890. [2022-07-12 07:10:42,011 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) [2022-07-12 07:10:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14890 states to 14890 states and 20772 transitions. [2022-07-12 07:10:42,032 INFO L78 Accepts]: Start accepts. Automaton has 14890 states and 20772 transitions. Word has length 80 [2022-07-12 07:10:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:42,033 INFO L495 AbstractCegarLoop]: Abstraction has 14890 states and 20772 transitions. [2022-07-12 07:10:42,033 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) [2022-07-12 07:10:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 14890 states and 20772 transitions. [2022-07-12 07:10:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:10:42,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:42,046 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] [2022-07-12 07:10:42,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:10:42,047 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)] === [2022-07-12 07:10:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2109644858, now seen corresponding path program 1 times [2022-07-12 07:10:42,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:42,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122902676] [2022-07-12 07:10:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:42,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:42,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:42,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122902676] [2022-07-12 07:10:42,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122902676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:42,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:42,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:42,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289254040] [2022-07-12 07:10:42,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:42,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 07:10:42,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 07:10:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 07:10:42,160 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) [2022-07-12 07:10:44,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:44,635 INFO L93 Difference]: Finished difference Result 22398 states and 31627 transitions. [2022-07-12 07:10:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 07:10:44,636 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 [2022-07-12 07:10:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:44,663 INFO L225 Difference]: With dead ends: 22398 [2022-07-12 07:10:44,663 INFO L226 Difference]: Without dead ends: 22396 [2022-07-12 07:10:44,668 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 [2022-07-12 07:10:44,669 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 [2022-07-12 07:10:44,670 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] [2022-07-12 07:10:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22396 states. [2022-07-12 07:10:46,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22396 to 14888. [2022-07-12 07:10:46,073 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) [2022-07-12 07:10:46,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14888 states to 14888 states and 20735 transitions. [2022-07-12 07:10:46,094 INFO L78 Accepts]: Start accepts. Automaton has 14888 states and 20735 transitions. Word has length 80 [2022-07-12 07:10:46,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:46,094 INFO L495 AbstractCegarLoop]: Abstraction has 14888 states and 20735 transitions. [2022-07-12 07:10:46,094 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) [2022-07-12 07:10:46,095 INFO L276 IsEmpty]: Start isEmpty. Operand 14888 states and 20735 transitions. [2022-07-12 07:10:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:10:46,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:46,108 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] [2022-07-12 07:10:46,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:10:46,109 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)] === [2022-07-12 07:10:46,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:46,109 INFO L85 PathProgramCache]: Analyzing trace with hash 501951513, now seen corresponding path program 1 times [2022-07-12 07:10:46,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:46,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749648628] [2022-07-12 07:10:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:46,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:46,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:46,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749648628] [2022-07-12 07:10:46,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749648628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:46,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:46,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:46,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16206889] [2022-07-12 07:10:46,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:46,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 07:10:46,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 07:10:46,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 07:10:46,187 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) [2022-07-12 07:10:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:48,658 INFO L93 Difference]: Finished difference Result 22396 states and 31590 transitions. [2022-07-12 07:10:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 07:10:48,658 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 [2022-07-12 07:10:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:48,695 INFO L225 Difference]: With dead ends: 22396 [2022-07-12 07:10:48,695 INFO L226 Difference]: Without dead ends: 22394 [2022-07-12 07:10:48,705 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 [2022-07-12 07:10:48,706 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:48,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3779 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:10:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22394 states. [2022-07-12 07:10:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22394 to 14886. [2022-07-12 07:10:50,288 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) [2022-07-12 07:10:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14886 states to 14886 states and 20698 transitions. [2022-07-12 07:10:50,307 INFO L78 Accepts]: Start accepts. Automaton has 14886 states and 20698 transitions. Word has length 80 [2022-07-12 07:10:50,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:50,307 INFO L495 AbstractCegarLoop]: Abstraction has 14886 states and 20698 transitions. [2022-07-12 07:10:50,308 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) [2022-07-12 07:10:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 14886 states and 20698 transitions. [2022-07-12 07:10:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 07:10:50,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:50,317 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] [2022-07-12 07:10:50,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:10:50,318 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)] === [2022-07-12 07:10:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash -327033425, now seen corresponding path program 1 times [2022-07-12 07:10:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:50,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127243841] [2022-07-12 07:10:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:50,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:50,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127243841] [2022-07-12 07:10:50,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127243841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:50,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:50,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:10:50,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892963642] [2022-07-12 07:10:50,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:50,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:10:50,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:50,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:10:50,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:10:50,395 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) [2022-07-12 07:10:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:10:53,268 INFO L93 Difference]: Finished difference Result 33334 states and 46324 transitions. [2022-07-12 07:10:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:10:53,269 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 [2022-07-12 07:10:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:10:53,299 INFO L225 Difference]: With dead ends: 33334 [2022-07-12 07:10:53,299 INFO L226 Difference]: Without dead ends: 19253 [2022-07-12 07:10:53,319 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 [2022-07-12 07:10:53,319 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 3591 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:10:53,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3591 Valid, 782 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:10:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19253 states. [2022-07-12 07:10:55,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19253 to 19193. [2022-07-12 07:10:55,523 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) [2022-07-12 07:10:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19193 states to 19193 states and 26427 transitions. [2022-07-12 07:10:55,552 INFO L78 Accepts]: Start accepts. Automaton has 19193 states and 26427 transitions. Word has length 80 [2022-07-12 07:10:55,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:10:55,553 INFO L495 AbstractCegarLoop]: Abstraction has 19193 states and 26427 transitions. [2022-07-12 07:10:55,553 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) [2022-07-12 07:10:55,553 INFO L276 IsEmpty]: Start isEmpty. Operand 19193 states and 26427 transitions. [2022-07-12 07:10:55,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:10:55,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:10:55,563 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] [2022-07-12 07:10:55,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:10:55,563 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)] === [2022-07-12 07:10:55,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:10:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash 324015783, now seen corresponding path program 1 times [2022-07-12 07:10:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:10:55,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905058600] [2022-07-12 07:10:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:10:55,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:10:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:10:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:10:55,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:10:55,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905058600] [2022-07-12 07:10:55,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905058600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:10:55,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:10:55,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:10:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808638814] [2022-07-12 07:10:55,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:10:55,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:10:55,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:10:55,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:10:55,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:10:55,650 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) [2022-07-12 07:11:05,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:11:05,222 INFO L93 Difference]: Finished difference Result 66799 states and 92740 transitions. [2022-07-12 07:11:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:11:05,222 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 [2022-07-12 07:11:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:11:05,319 INFO L225 Difference]: With dead ends: 66799 [2022-07-12 07:11:05,319 INFO L226 Difference]: Without dead ends: 57415 [2022-07-12 07:11:05,340 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 [2022-07-12 07:11:05,341 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 [2022-07-12 07:11:05,341 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] [2022-07-12 07:11:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57415 states. [2022-07-12 07:11:08,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57415 to 19277. [2022-07-12 07:11:08,259 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) [2022-07-12 07:11:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19277 states to 19277 states and 26535 transitions. [2022-07-12 07:11:08,290 INFO L78 Accepts]: Start accepts. Automaton has 19277 states and 26535 transitions. Word has length 81 [2022-07-12 07:11:08,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:11:08,290 INFO L495 AbstractCegarLoop]: Abstraction has 19277 states and 26535 transitions. [2022-07-12 07:11:08,291 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) [2022-07-12 07:11:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 19277 states and 26535 transitions. [2022-07-12 07:11:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-12 07:11:08,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:11:08,301 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] [2022-07-12 07:11:08,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:11:08,301 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)] === [2022-07-12 07:11:08,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:11:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1289503009, now seen corresponding path program 1 times [2022-07-12 07:11:08,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:11:08,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345931340] [2022-07-12 07:11:08,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:11:08,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:11:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:11:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:11:08,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:11:08,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345931340] [2022-07-12 07:11:08,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345931340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:11:08,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:11:08,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:11:08,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271517156] [2022-07-12 07:11:08,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:11:08,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:11:08,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:11:08,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:11:08,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:11:08,419 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) [2022-07-12 07:11:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:11:20,705 INFO L93 Difference]: Finished difference Result 70268 states and 97892 transitions. [2022-07-12 07:11:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:11:20,705 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 [2022-07-12 07:11:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:11:20,833 INFO L225 Difference]: With dead ends: 70268 [2022-07-12 07:11:20,833 INFO L226 Difference]: Without dead ends: 62578 [2022-07-12 07:11:20,860 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 [2022-07-12 07:11:20,861 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 5896 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:11:20,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5896 Valid, 1713 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:11:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62578 states. [2022-07-12 07:11:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62578 to 19784. [2022-07-12 07:11:24,180 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) [2022-07-12 07:11:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19784 states to 19784 states and 27221 transitions. [2022-07-12 07:11:24,207 INFO L78 Accepts]: Start accepts. Automaton has 19784 states and 27221 transitions. Word has length 81 [2022-07-12 07:11:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:11:24,207 INFO L495 AbstractCegarLoop]: Abstraction has 19784 states and 27221 transitions. [2022-07-12 07:11:24,207 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) [2022-07-12 07:11:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19784 states and 27221 transitions. [2022-07-12 07:11:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:11:24,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:11:24,217 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] [2022-07-12 07:11:24,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:11:24,217 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)] === [2022-07-12 07:11:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:11:24,218 INFO L85 PathProgramCache]: Analyzing trace with hash -677267389, now seen corresponding path program 1 times [2022-07-12 07:11:24,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:11:24,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047981953] [2022-07-12 07:11:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:11:24,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:11:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:11:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:11:24,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:11:24,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047981953] [2022-07-12 07:11:24,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047981953] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:11:24,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:11:24,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:11:24,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548907463] [2022-07-12 07:11:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:11:24,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 07:11:24,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:11:24,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 07:11:24,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 07:11:24,292 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) [2022-07-12 07:11:29,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:11:29,580 INFO L93 Difference]: Finished difference Result 30964 states and 43233 transitions. [2022-07-12 07:11:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 07:11:29,581 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 [2022-07-12 07:11:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:11:29,623 INFO L225 Difference]: With dead ends: 30964 [2022-07-12 07:11:29,624 INFO L226 Difference]: Without dead ends: 30962 [2022-07-12 07:11:29,633 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 [2022-07-12 07:11:29,633 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:11:29,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 3624 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:11:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30962 states. [2022-07-12 07:11:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30962 to 19782. [2022-07-12 07:11:32,708 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) [2022-07-12 07:11:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19782 states to 19782 states and 27166 transitions. [2022-07-12 07:11:32,741 INFO L78 Accepts]: Start accepts. Automaton has 19782 states and 27166 transitions. Word has length 82 [2022-07-12 07:11:32,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:11:32,741 INFO L495 AbstractCegarLoop]: Abstraction has 19782 states and 27166 transitions. [2022-07-12 07:11:32,742 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) [2022-07-12 07:11:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 19782 states and 27166 transitions. [2022-07-12 07:11:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-12 07:11:32,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:11:32,753 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] [2022-07-12 07:11:32,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:11:32,754 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)] === [2022-07-12 07:11:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:11:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2026028216, now seen corresponding path program 1 times [2022-07-12 07:11:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:11:32,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269885171] [2022-07-12 07:11:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:11:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:11:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:11:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:11:32,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:11:32,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269885171] [2022-07-12 07:11:32,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269885171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:11:32,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:11:32,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:11:32,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952178224] [2022-07-12 07:11:32,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:11:32,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 07:11:32,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:11:32,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 07:11:32,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 07:11:32,839 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) [2022-07-12 07:11:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:11:38,315 INFO L93 Difference]: Finished difference Result 30962 states and 43178 transitions. [2022-07-12 07:11:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 07:11:38,315 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 [2022-07-12 07:11:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:11:38,359 INFO L225 Difference]: With dead ends: 30962 [2022-07-12 07:11:38,359 INFO L226 Difference]: Without dead ends: 30960 [2022-07-12 07:11:38,369 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 [2022-07-12 07:11:38,369 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 [2022-07-12 07:11:38,369 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] [2022-07-12 07:11:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30960 states. [2022-07-12 07:11:41,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30960 to 19780. [2022-07-12 07:11:41,599 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) [2022-07-12 07:11:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19780 states to 19780 states and 27111 transitions. [2022-07-12 07:11:41,629 INFO L78 Accepts]: Start accepts. Automaton has 19780 states and 27111 transitions. Word has length 82 [2022-07-12 07:11:41,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:11:41,629 INFO L495 AbstractCegarLoop]: Abstraction has 19780 states and 27111 transitions. [2022-07-12 07:11:41,630 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) [2022-07-12 07:11:41,630 INFO L276 IsEmpty]: Start isEmpty. Operand 19780 states and 27111 transitions. [2022-07-12 07:11:41,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-12 07:11:41,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:11:41,642 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] [2022-07-12 07:11:41,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:11:41,642 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)] === [2022-07-12 07:11:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:11:41,643 INFO L85 PathProgramCache]: Analyzing trace with hash 737634818, now seen corresponding path program 1 times [2022-07-12 07:11:41,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:11:41,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413450594] [2022-07-12 07:11:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:11:41,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:11:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:11:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:11:41,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:11:41,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413450594] [2022-07-12 07:11:41,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413450594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:11:41,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:11:41,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:11:41,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930264286] [2022-07-12 07:11:41,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:11:41,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 07:11:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:11:41,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 07:11:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 07:11:41,728 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) [2022-07-12 07:11:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:11:47,465 INFO L93 Difference]: Finished difference Result 30960 states and 43123 transitions. [2022-07-12 07:11:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 07:11:47,466 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 [2022-07-12 07:11:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:11:47,513 INFO L225 Difference]: With dead ends: 30960 [2022-07-12 07:11:47,513 INFO L226 Difference]: Without dead ends: 30958 [2022-07-12 07:11:47,523 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 [2022-07-12 07:11:47,524 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 [2022-07-12 07:11:47,524 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] [2022-07-12 07:11:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2022-07-12 07:11:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 19778. [2022-07-12 07:11:50,857 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) [2022-07-12 07:11:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19778 states to 19778 states and 27029 transitions. [2022-07-12 07:11:50,888 INFO L78 Accepts]: Start accepts. Automaton has 19778 states and 27029 transitions. Word has length 84 [2022-07-12 07:11:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:11:50,888 INFO L495 AbstractCegarLoop]: Abstraction has 19778 states and 27029 transitions. [2022-07-12 07:11:50,888 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) [2022-07-12 07:11:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 19778 states and 27029 transitions. [2022-07-12 07:11:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:11:50,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:11:50,905 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] [2022-07-12 07:11:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:11:50,905 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)] === [2022-07-12 07:11:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:11:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 541501968, now seen corresponding path program 1 times [2022-07-12 07:11:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:11:50,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77408294] [2022-07-12 07:11:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:11:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:11:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:11:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:11:51,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:11:51,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77408294] [2022-07-12 07:11:51,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77408294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:11:51,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:11:51,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:11:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120497763] [2022-07-12 07:11:51,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:11:51,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:11:51,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:11:51,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:11:51,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:11:51,055 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) [2022-07-12 07:12:02,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:12:02,769 INFO L93 Difference]: Finished difference Result 59885 states and 83810 transitions. [2022-07-12 07:12:02,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:12:02,770 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 [2022-07-12 07:12:02,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:12:02,860 INFO L225 Difference]: With dead ends: 59885 [2022-07-12 07:12:02,860 INFO L226 Difference]: Without dead ends: 48637 [2022-07-12 07:12:02,877 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 [2022-07-12 07:12:02,877 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 [2022-07-12 07:12:02,878 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] [2022-07-12 07:12:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48637 states. [2022-07-12 07:12:06,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48637 to 19744. [2022-07-12 07:12:06,689 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) [2022-07-12 07:12:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19744 states to 19744 states and 26977 transitions. [2022-07-12 07:12:06,716 INFO L78 Accepts]: Start accepts. Automaton has 19744 states and 26977 transitions. Word has length 85 [2022-07-12 07:12:06,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:12:06,717 INFO L495 AbstractCegarLoop]: Abstraction has 19744 states and 26977 transitions. [2022-07-12 07:12:06,717 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) [2022-07-12 07:12:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 19744 states and 26977 transitions. [2022-07-12 07:12:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:12:06,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:12:06,732 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] [2022-07-12 07:12:06,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:12:06,732 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)] === [2022-07-12 07:12:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:12:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash -777579654, now seen corresponding path program 1 times [2022-07-12 07:12:06,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:12:06,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854431549] [2022-07-12 07:12:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:12:06,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:12:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:12:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:12:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:12:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854431549] [2022-07-12 07:12:06,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854431549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:12:06,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:12:06,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:12:06,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758409370] [2022-07-12 07:12:06,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:12:06,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:12:06,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:12:06,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:12:06,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:12:06,816 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) [2022-07-12 07:12:25,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:12:25,262 INFO L93 Difference]: Finished difference Result 77232 states and 107970 transitions. [2022-07-12 07:12:25,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:12:25,263 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 [2022-07-12 07:12:25,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:12:25,386 INFO L225 Difference]: With dead ends: 77232 [2022-07-12 07:12:25,386 INFO L226 Difference]: Without dead ends: 69668 [2022-07-12 07:12:25,412 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 [2022-07-12 07:12:25,413 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 5126 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2022-07-12 07:12:25,413 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] [2022-07-12 07:12:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69668 states. [2022-07-12 07:12:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69668 to 19804. [2022-07-12 07:12:29,821 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) [2022-07-12 07:12:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19804 states to 19804 states and 27057 transitions. [2022-07-12 07:12:29,850 INFO L78 Accepts]: Start accepts. Automaton has 19804 states and 27057 transitions. Word has length 85 [2022-07-12 07:12:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:12:29,850 INFO L495 AbstractCegarLoop]: Abstraction has 19804 states and 27057 transitions. [2022-07-12 07:12:29,850 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) [2022-07-12 07:12:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 19804 states and 27057 transitions. [2022-07-12 07:12:29,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:12:29,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:12:29,863 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] [2022-07-12 07:12:29,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:12:29,864 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)] === [2022-07-12 07:12:29,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:12:29,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1961391530, now seen corresponding path program 1 times [2022-07-12 07:12:29,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:12:29,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783027511] [2022-07-12 07:12:29,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:12:29,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:12:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:12:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:12:29,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:12:29,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783027511] [2022-07-12 07:12:29,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783027511] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:12:29,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:12:29,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:12:29,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102604266] [2022-07-12 07:12:29,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:12:29,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 07:12:29,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:12:29,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 07:12:29,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:12:29,960 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) [2022-07-12 07:12:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:12:47,891 INFO L93 Difference]: Finished difference Result 69798 states and 97151 transitions. [2022-07-12 07:12:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 07:12:47,892 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 [2022-07-12 07:12:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:12:47,998 INFO L225 Difference]: With dead ends: 69798 [2022-07-12 07:12:47,998 INFO L226 Difference]: Without dead ends: 62326 [2022-07-12 07:12:48,021 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 [2022-07-12 07:12:48,021 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 [2022-07-12 07:12:48,022 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] [2022-07-12 07:12:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62326 states. [2022-07-12 07:12:52,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62326 to 19894. [2022-07-12 07:12:52,612 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) [2022-07-12 07:12:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19894 states to 19894 states and 27177 transitions. [2022-07-12 07:12:52,646 INFO L78 Accepts]: Start accepts. Automaton has 19894 states and 27177 transitions. Word has length 85 [2022-07-12 07:12:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:12:52,647 INFO L495 AbstractCegarLoop]: Abstraction has 19894 states and 27177 transitions. [2022-07-12 07:12:52,647 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) [2022-07-12 07:12:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19894 states and 27177 transitions. [2022-07-12 07:12:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:12:52,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:12:52,660 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] [2022-07-12 07:12:52,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:12:52,661 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)] === [2022-07-12 07:12:52,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:12:52,661 INFO L85 PathProgramCache]: Analyzing trace with hash 385836517, now seen corresponding path program 1 times [2022-07-12 07:12:52,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:12:52,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050403575] [2022-07-12 07:12:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:12:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:12:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:12:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:12:52,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:12:52,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050403575] [2022-07-12 07:12:52,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050403575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:12:52,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:12:52,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:12:52,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298492032] [2022-07-12 07:12:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:12:52,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:12:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:12:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:12:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:12:52,790 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) [2022-07-12 07:13:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:13:11,773 INFO L93 Difference]: Finished difference Result 74372 states and 104305 transitions. [2022-07-12 07:13:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:13:11,774 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 [2022-07-12 07:13:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:13:11,893 INFO L225 Difference]: With dead ends: 74372 [2022-07-12 07:13:11,893 INFO L226 Difference]: Without dead ends: 63180 [2022-07-12 07:13:11,917 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 [2022-07-12 07:13:11,918 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 4313 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 2833 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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 [2022-07-12 07:13:11,918 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] [2022-07-12 07:13:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63180 states. [2022-07-12 07:13:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63180 to 19888. [2022-07-12 07:13:16,841 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) [2022-07-12 07:13:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19888 states to 19888 states and 27159 transitions. [2022-07-12 07:13:16,875 INFO L78 Accepts]: Start accepts. Automaton has 19888 states and 27159 transitions. Word has length 85 [2022-07-12 07:13:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:13:16,875 INFO L495 AbstractCegarLoop]: Abstraction has 19888 states and 27159 transitions. [2022-07-12 07:13:16,875 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) [2022-07-12 07:13:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 19888 states and 27159 transitions. [2022-07-12 07:13:16,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 07:13:16,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:13:16,890 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] [2022-07-12 07:13:16,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:13:16,890 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)] === [2022-07-12 07:13:16,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:13:16,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1096211298, now seen corresponding path program 1 times [2022-07-12 07:13:16,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:13:16,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151680382] [2022-07-12 07:13:16,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:13:16,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:13:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:13:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:13:17,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:13:17,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151680382] [2022-07-12 07:13:17,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151680382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:13:17,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:13:17,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 07:13:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639475099] [2022-07-12 07:13:17,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:13:17,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 07:13:17,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:13:17,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 07:13:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 07:13:17,041 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) [2022-07-12 07:13:35,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:13:35,149 INFO L93 Difference]: Finished difference Result 63059 states and 86988 transitions. [2022-07-12 07:13:35,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:13:35,149 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 [2022-07-12 07:13:35,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:13:35,253 INFO L225 Difference]: With dead ends: 63059 [2022-07-12 07:13:35,253 INFO L226 Difference]: Without dead ends: 59142 [2022-07-12 07:13:35,270 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 [2022-07-12 07:13:35,271 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 3442 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 3587 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:13:35,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 4339 Invalid, 3641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3587 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 07:13:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59142 states. [2022-07-12 07:13:40,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59142 to 19892. [2022-07-12 07:13:40,170 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) [2022-07-12 07:13:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 27162 transitions. [2022-07-12 07:13:40,200 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 27162 transitions. Word has length 85 [2022-07-12 07:13:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:13:40,201 INFO L495 AbstractCegarLoop]: Abstraction has 19892 states and 27162 transitions. [2022-07-12 07:13:40,201 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) [2022-07-12 07:13:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 27162 transitions. [2022-07-12 07:13:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:13:40,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:13:40,215 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] [2022-07-12 07:13:40,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:13:40,216 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)] === [2022-07-12 07:13:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:13:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1328007044, now seen corresponding path program 1 times [2022-07-12 07:13:40,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:13:40,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156848028] [2022-07-12 07:13:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:13:40,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:13:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:13:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:13:40,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:13:40,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156848028] [2022-07-12 07:13:40,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156848028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:13:40,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:13:40,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:13:40,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549869414] [2022-07-12 07:13:40,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:13:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:13:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:13:40,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:13:40,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:13:40,341 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) [2022-07-12 07:13:55,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:13:55,998 INFO L93 Difference]: Finished difference Result 60129 states and 84149 transitions. [2022-07-12 07:13:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:13:55,999 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 [2022-07-12 07:13:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:13:56,067 INFO L225 Difference]: With dead ends: 60129 [2022-07-12 07:13:56,067 INFO L226 Difference]: Without dead ends: 48489 [2022-07-12 07:13:56,086 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 [2022-07-12 07:13:56,087 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 [2022-07-12 07:13:56,087 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] [2022-07-12 07:13:56,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48489 states. [2022-07-12 07:14:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48489 to 19650. [2022-07-12 07:14:01,246 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) [2022-07-12 07:14:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19650 states to 19650 states and 26832 transitions. [2022-07-12 07:14:01,274 INFO L78 Accepts]: Start accepts. Automaton has 19650 states and 26832 transitions. Word has length 86 [2022-07-12 07:14:01,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:14:01,274 INFO L495 AbstractCegarLoop]: Abstraction has 19650 states and 26832 transitions. [2022-07-12 07:14:01,274 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) [2022-07-12 07:14:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 19650 states and 26832 transitions. [2022-07-12 07:14:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-12 07:14:01,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:14:01,286 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] [2022-07-12 07:14:01,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:14:01,286 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)] === [2022-07-12 07:14:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:14:01,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1513152942, now seen corresponding path program 1 times [2022-07-12 07:14:01,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:14:01,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882788213] [2022-07-12 07:14:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:14:01,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:14:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:14:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:14:01,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:14:01,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882788213] [2022-07-12 07:14:01,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882788213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:14:01,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:14:01,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:14:01,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811550647] [2022-07-12 07:14:01,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:14:01,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:14:01,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:14:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:14:01,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:14:01,553 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)