./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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.3.ufo.BOUNDED-6.pals.c.v+sep-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 f8647b87d9679ff1ae7ce0cdb1a68cb57cbc5ac468f0ecd53079584cb92d51fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:17:59,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:17:59,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:17:59,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:17:59,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:17:59,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:17:59,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:17:59,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:17:59,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:17:59,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:17:59,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:17:59,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:17:59,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:17:59,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:17:59,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:17:59,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:17:59,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:17:59,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:17:59,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:17:59,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:17:59,294 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:17:59,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:17:59,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:17:59,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:17:59,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:17:59,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:17:59,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:17:59,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:17:59,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:17:59,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:17:59,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:17:59,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:17:59,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:17:59,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:17:59,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:17:59,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:17:59,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:17:59,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:17:59,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:17:59,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:17:59,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:17:59,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:17:59,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:17:59,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:17:59,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:17:59,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:17:59,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:17:59,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:17:59,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:17:59,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:17:59,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:17:59,349 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:17:59,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:17:59,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:17:59,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:17:59,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:17:59,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:17:59,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:17:59,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:17:59,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:17:59,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:17:59,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:17:59,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:17:59,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:17:59,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:17:59,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:17:59,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:17:59,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:17:59,354 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:17:59,354 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:17:59,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:17:59,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8647b87d9679ff1ae7ce0cdb1a68cb57cbc5ac468f0ecd53079584cb92d51fd [2022-07-19 18:17:59,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:17:59,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:17:59,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:17:59,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:17:59,581 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:17:59,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-07-19 18:17:59,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/906504c65/b342826f23294eba9b6b8c30262e62d7/FLAG276c3cc89 [2022-07-19 18:18:00,181 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:18:00,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-07-19 18:18:00,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/906504c65/b342826f23294eba9b6b8c30262e62d7/FLAG276c3cc89 [2022-07-19 18:18:00,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/906504c65/b342826f23294eba9b6b8c30262e62d7 [2022-07-19 18:18:00,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:18:00,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:18:00,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:18:00,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:18:00,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:18:00,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:18:00" (1/1) ... [2022-07-19 18:18:00,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b18c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:00, skipping insertion in model container [2022-07-19 18:18:00,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:18:00" (1/1) ... [2022-07-19 18:18:00,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:18:00,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:18:00,909 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6197,6210] [2022-07-19 18:18:00,924 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9182,9195] [2022-07-19 18:18:00,937 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12241,12254] [2022-07-19 18:18:00,949 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15128,15141] [2022-07-19 18:18:00,961 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18343,18356] [2022-07-19 18:18:00,976 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21435,21448] [2022-07-19 18:18:00,992 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24486,24499] [2022-07-19 18:18:01,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:18:01,058 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:18:01,090 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[6197,6210] [2022-07-19 18:18:01,102 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[9182,9195] [2022-07-19 18:18:01,113 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12241,12254] [2022-07-19 18:18:01,120 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[15128,15141] [2022-07-19 18:18:01,128 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[18343,18356] [2022-07-19 18:18:01,135 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[21435,21448] [2022-07-19 18:18:01,143 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.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[24486,24499] [2022-07-19 18:18:01,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:18:01,178 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:18:01,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01 WrapperNode [2022-07-19 18:18:01,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:18:01,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:18:01,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:18:01,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:18:01,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,250 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1327 [2022-07-19 18:18:01,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:18:01,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:18:01,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:18:01,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:18:01,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:18:01,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:18:01,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:18:01,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:18:01,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (1/1) ... [2022-07-19 18:18:01,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:18:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:18:01,373 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) [2022-07-19 18:18:01,394 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 [2022-07-19 18:18:01,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:18:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:18:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:18:01,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:18:01,542 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:18:01,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:18:02,468 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:18:02,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:18:02,491 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:18:02,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:18:02 BoogieIcfgContainer [2022-07-19 18:18:02,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:18:02,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:18:02,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:18:02,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:18:02,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:18:00" (1/3) ... [2022-07-19 18:18:02,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8b661b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:18:02, skipping insertion in model container [2022-07-19 18:18:02,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:18:01" (2/3) ... [2022-07-19 18:18:02,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8b661b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:18:02, skipping insertion in model container [2022-07-19 18:18:02,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:18:02" (3/3) ... [2022-07-19 18:18:02,516 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-07-19 18:18:02,528 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:18:02,540 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-07-19 18:18:02,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:18:02,658 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@349e2387, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a01a701 [2022-07-19 18:18:02,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-19 18:18:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 271 states have (on average 1.7933579335793357) internal successors, (486), 278 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 18:18:02,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:02,677 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] [2022-07-19 18:18:02,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash -506083603, now seen corresponding path program 1 times [2022-07-19 18:18:02,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:02,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291651084] [2022-07-19 18:18:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:02,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:03,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:03,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291651084] [2022-07-19 18:18:03,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291651084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:03,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:03,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:18:03,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704932579] [2022-07-19 18:18:03,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:03,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:03,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:03,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:03,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:03,071 INFO L87 Difference]: Start difference. First operand has 279 states, 271 states have (on average 1.7933579335793357) internal successors, (486), 278 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:03,353 INFO L93 Difference]: Finished difference Result 392 states and 660 transitions. [2022-07-19 18:18:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:03,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-19 18:18:03,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:03,365 INFO L225 Difference]: With dead ends: 392 [2022-07-19 18:18:03,365 INFO L226 Difference]: Without dead ends: 244 [2022-07-19 18:18:03,368 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 [2022-07-19 18:18:03,371 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1142 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:03,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 300 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-07-19 18:18:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-07-19 18:18:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 237 states have (on average 1.2658227848101267) internal successors, (300), 243 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 300 transitions. [2022-07-19 18:18:03,420 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 300 transitions. Word has length 48 [2022-07-19 18:18:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:03,420 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 300 transitions. [2022-07-19 18:18:03,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 300 transitions. [2022-07-19 18:18:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 18:18:03,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:03,423 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] [2022-07-19 18:18:03,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:18:03,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:03,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1206513712, now seen corresponding path program 1 times [2022-07-19 18:18:03,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:03,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571122932] [2022-07-19 18:18:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:03,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:03,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571122932] [2022-07-19 18:18:03,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571122932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:03,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:03,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:18:03,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110219884] [2022-07-19 18:18:03,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:03,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:03,559 INFO L87 Difference]: Start difference. First operand 244 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:03,692 INFO L93 Difference]: Finished difference Result 312 states and 387 transitions. [2022-07-19 18:18:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-19 18:18:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:03,696 INFO L225 Difference]: With dead ends: 312 [2022-07-19 18:18:03,696 INFO L226 Difference]: Without dead ends: 186 [2022-07-19 18:18:03,699 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 [2022-07-19 18:18:03,701 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 632 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:03,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 144 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:18:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-07-19 18:18:03,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2022-07-19 18:18:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 179 states have (on average 1.2681564245810055) internal successors, (227), 185 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2022-07-19 18:18:03,733 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 48 [2022-07-19 18:18:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:03,734 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2022-07-19 18:18:03,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2022-07-19 18:18:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 18:18:03,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:03,744 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] [2022-07-19 18:18:03,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:18:03,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:03,747 INFO L85 PathProgramCache]: Analyzing trace with hash 731649800, now seen corresponding path program 1 times [2022-07-19 18:18:03,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:03,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666328498] [2022-07-19 18:18:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:03,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:03,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:03,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666328498] [2022-07-19 18:18:03,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666328498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:03,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:03,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:18:03,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744629068] [2022-07-19 18:18:03,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:03,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:03,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:03,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:03,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:03,886 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:03,988 INFO L93 Difference]: Finished difference Result 266 states and 332 transitions. [2022-07-19 18:18:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-19 18:18:03,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:03,991 INFO L225 Difference]: With dead ends: 266 [2022-07-19 18:18:03,991 INFO L226 Difference]: Without dead ends: 163 [2022-07-19 18:18:03,991 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 [2022-07-19 18:18:03,992 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 562 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:03,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 127 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:18:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-07-19 18:18:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-07-19 18:18:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2756410256410255) internal successors, (199), 162 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 199 transitions. [2022-07-19 18:18:04,005 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 199 transitions. Word has length 48 [2022-07-19 18:18:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:04,006 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 199 transitions. [2022-07-19 18:18:04,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 199 transitions. [2022-07-19 18:18:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-19 18:18:04,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:04,007 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] [2022-07-19 18:18:04,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:18:04,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:04,008 INFO L85 PathProgramCache]: Analyzing trace with hash 613838546, now seen corresponding path program 1 times [2022-07-19 18:18:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:04,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017404273] [2022-07-19 18:18:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:04,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:04,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:04,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017404273] [2022-07-19 18:18:04,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017404273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:04,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:04,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:18:04,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997730576] [2022-07-19 18:18:04,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:04,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:18:04,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:04,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:18:04,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:18:04,148 INFO L87 Difference]: Start difference. First operand 163 states and 199 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:04,339 INFO L93 Difference]: Finished difference Result 326 states and 405 transitions. [2022-07-19 18:18:04,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:18:04,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-19 18:18:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:04,341 INFO L225 Difference]: With dead ends: 326 [2022-07-19 18:18:04,341 INFO L226 Difference]: Without dead ends: 239 [2022-07-19 18:18:04,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:18:04,342 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 708 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:04,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 311 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:18:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-07-19 18:18:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 163. [2022-07-19 18:18:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2692307692307692) internal successors, (198), 162 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2022-07-19 18:18:04,354 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 50 [2022-07-19 18:18:04,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:04,354 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2022-07-19 18:18:04,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2022-07-19 18:18:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-19 18:18:04,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:04,355 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] [2022-07-19 18:18:04,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:18:04,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:04,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1717096174, now seen corresponding path program 1 times [2022-07-19 18:18:04,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:04,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448087408] [2022-07-19 18:18:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:04,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:04,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448087408] [2022-07-19 18:18:04,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448087408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:04,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:04,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071153323] [2022-07-19 18:18:04,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:04,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:04,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:04,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:04,485 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:04,893 INFO L93 Difference]: Finished difference Result 343 states and 441 transitions. [2022-07-19 18:18:04,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:18:04,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-19 18:18:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:04,898 INFO L225 Difference]: With dead ends: 343 [2022-07-19 18:18:04,898 INFO L226 Difference]: Without dead ends: 337 [2022-07-19 18:18:04,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:18:04,900 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1235 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:04,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 632 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-19 18:18:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 163. [2022-07-19 18:18:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2628205128205128) internal successors, (197), 162 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2022-07-19 18:18:04,915 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 50 [2022-07-19 18:18:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:04,916 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2022-07-19 18:18:04,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2022-07-19 18:18:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-19 18:18:04,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:04,917 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] [2022-07-19 18:18:04,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:18:04,918 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:04,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:04,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1648014290, now seen corresponding path program 1 times [2022-07-19 18:18:04,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:04,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766558414] [2022-07-19 18:18:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:05,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766558414] [2022-07-19 18:18:05,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766558414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:05,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:05,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:05,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749988012] [2022-07-19 18:18:05,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:05,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:05,065 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:05,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:05,489 INFO L93 Difference]: Finished difference Result 403 states and 525 transitions. [2022-07-19 18:18:05,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:18:05,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-19 18:18:05,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:05,492 INFO L225 Difference]: With dead ends: 403 [2022-07-19 18:18:05,493 INFO L226 Difference]: Without dead ends: 341 [2022-07-19 18:18:05,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:18:05,495 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1232 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:05,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 826 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-19 18:18:05,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 163. [2022-07-19 18:18:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2564102564102564) internal successors, (196), 162 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 196 transitions. [2022-07-19 18:18:05,512 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 196 transitions. Word has length 50 [2022-07-19 18:18:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:05,512 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 196 transitions. [2022-07-19 18:18:05,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 196 transitions. [2022-07-19 18:18:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 18:18:05,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:05,513 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] [2022-07-19 18:18:05,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:18:05,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:05,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:05,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1708755507, now seen corresponding path program 1 times [2022-07-19 18:18:05,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:05,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77982808] [2022-07-19 18:18:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77982808] [2022-07-19 18:18:05,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77982808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:05,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:05,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:18:05,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602579313] [2022-07-19 18:18:05,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:05,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:18:05,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:05,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:18:05,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:18:05,810 INFO L87 Difference]: Start difference. First operand 163 states and 196 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:06,487 INFO L93 Difference]: Finished difference Result 486 states and 647 transitions. [2022-07-19 18:18:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:18:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-19 18:18:06,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:06,489 INFO L225 Difference]: With dead ends: 486 [2022-07-19 18:18:06,490 INFO L226 Difference]: Without dead ends: 431 [2022-07-19 18:18:06,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:18:06,491 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 1340 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:06,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 1544 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-07-19 18:18:06,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 151. [2022-07-19 18:18:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 145 states have (on average 1.2551724137931035) internal successors, (182), 150 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2022-07-19 18:18:06,513 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 51 [2022-07-19 18:18:06,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:06,514 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2022-07-19 18:18:06,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2022-07-19 18:18:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-19 18:18:06,515 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:06,515 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] [2022-07-19 18:18:06,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:18:06,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 871420535, now seen corresponding path program 1 times [2022-07-19 18:18:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:06,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329674918] [2022-07-19 18:18:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:06,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:06,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:06,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329674918] [2022-07-19 18:18:06,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329674918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:06,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:06,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:18:06,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981932762] [2022-07-19 18:18:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:06,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:18:06,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:18:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:18:06,760 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:07,374 INFO L93 Difference]: Finished difference Result 436 states and 576 transitions. [2022-07-19 18:18:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:18:07,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-07-19 18:18:07,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:07,377 INFO L225 Difference]: With dead ends: 436 [2022-07-19 18:18:07,377 INFO L226 Difference]: Without dead ends: 419 [2022-07-19 18:18:07,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:18:07,378 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1088 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:07,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1843 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:07,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-19 18:18:07,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 134. [2022-07-19 18:18:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 133 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2022-07-19 18:18:07,395 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 52 [2022-07-19 18:18:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:07,395 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2022-07-19 18:18:07,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2022-07-19 18:18:07,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-19 18:18:07,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:07,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:18:07,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:18:07,397 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:07,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1375412663, now seen corresponding path program 1 times [2022-07-19 18:18:07,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:07,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265223775] [2022-07-19 18:18:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:07,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:07,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:07,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265223775] [2022-07-19 18:18:07,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265223775] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:07,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:07,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:18:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599903659] [2022-07-19 18:18:07,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:07,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:18:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:07,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:18:07,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:18:07,637 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:08,135 INFO L93 Difference]: Finished difference Result 275 states and 346 transitions. [2022-07-19 18:18:08,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:18:08,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-07-19 18:18:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:08,136 INFO L225 Difference]: With dead ends: 275 [2022-07-19 18:18:08,137 INFO L226 Difference]: Without dead ends: 228 [2022-07-19 18:18:08,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:18:08,139 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 929 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:08,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 722 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-19 18:18:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 130. [2022-07-19 18:18:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.2440944881889764) internal successors, (158), 129 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 158 transitions. [2022-07-19 18:18:08,157 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 158 transitions. Word has length 52 [2022-07-19 18:18:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:08,158 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 158 transitions. [2022-07-19 18:18:08,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 158 transitions. [2022-07-19 18:18:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-19 18:18:08,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:08,159 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] [2022-07-19 18:18:08,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:18:08,159 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:08,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:08,160 INFO L85 PathProgramCache]: Analyzing trace with hash 4832631, now seen corresponding path program 1 times [2022-07-19 18:18:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:08,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601900111] [2022-07-19 18:18:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:08,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:08,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601900111] [2022-07-19 18:18:08,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601900111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:08,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:08,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745513611] [2022-07-19 18:18:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:08,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:08,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:08,255 INFO L87 Difference]: Start difference. First operand 130 states and 158 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:08,564 INFO L93 Difference]: Finished difference Result 266 states and 340 transitions. [2022-07-19 18:18:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:18:08,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-07-19 18:18:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:08,566 INFO L225 Difference]: With dead ends: 266 [2022-07-19 18:18:08,566 INFO L226 Difference]: Without dead ends: 203 [2022-07-19 18:18:08,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-19 18:18:08,567 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 411 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:08,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 502 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-19 18:18:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 130. [2022-07-19 18:18:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.236220472440945) internal successors, (157), 129 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2022-07-19 18:18:08,583 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 54 [2022-07-19 18:18:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:08,583 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2022-07-19 18:18:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2022-07-19 18:18:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-19 18:18:08,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:08,584 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] [2022-07-19 18:18:08,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:18:08,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:08,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:08,584 INFO L85 PathProgramCache]: Analyzing trace with hash -924533993, now seen corresponding path program 1 times [2022-07-19 18:18:08,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:08,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129886949] [2022-07-19 18:18:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:08,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:08,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:08,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129886949] [2022-07-19 18:18:08,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129886949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:08,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:08,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005663512] [2022-07-19 18:18:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:08,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:08,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:08,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:08,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:08,656 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:09,003 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2022-07-19 18:18:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:18:09,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-07-19 18:18:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:09,005 INFO L225 Difference]: With dead ends: 220 [2022-07-19 18:18:09,005 INFO L226 Difference]: Without dead ends: 212 [2022-07-19 18:18:09,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:18:09,006 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 477 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:09,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 770 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-07-19 18:18:09,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 130. [2022-07-19 18:18:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 129 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 156 transitions. [2022-07-19 18:18:09,022 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 156 transitions. Word has length 54 [2022-07-19 18:18:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:09,022 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 156 transitions. [2022-07-19 18:18:09,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 156 transitions. [2022-07-19 18:18:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 18:18:09,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:09,023 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] [2022-07-19 18:18:09,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:18:09,023 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1614885916, now seen corresponding path program 1 times [2022-07-19 18:18:09,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:09,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724179588] [2022-07-19 18:18:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:09,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:09,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:09,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724179588] [2022-07-19 18:18:09,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724179588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:09,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:09,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 18:18:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481067654] [2022-07-19 18:18:09,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:09,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 18:18:09,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 18:18:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-19 18:18:09,315 INFO L87 Difference]: Start difference. First operand 130 states and 156 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:10,489 INFO L93 Difference]: Finished difference Result 456 states and 588 transitions. [2022-07-19 18:18:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:18:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-19 18:18:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:10,491 INFO L225 Difference]: With dead ends: 456 [2022-07-19 18:18:10,491 INFO L226 Difference]: Without dead ends: 450 [2022-07-19 18:18:10,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2022-07-19 18:18:10,492 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1443 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:10,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1443 Valid, 3284 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:18:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-07-19 18:18:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 143. [2022-07-19 18:18:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 140 states have (on average 1.2285714285714286) internal successors, (172), 142 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 172 transitions. [2022-07-19 18:18:10,525 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 172 transitions. Word has length 56 [2022-07-19 18:18:10,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:10,525 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 172 transitions. [2022-07-19 18:18:10,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:10,525 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 172 transitions. [2022-07-19 18:18:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-19 18:18:10,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:10,526 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] [2022-07-19 18:18:10,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:18:10,526 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -712982628, now seen corresponding path program 1 times [2022-07-19 18:18:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026488875] [2022-07-19 18:18:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:10,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:10,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026488875] [2022-07-19 18:18:10,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026488875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:10,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:10,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 18:18:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202465443] [2022-07-19 18:18:10,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:10,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 18:18:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:10,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 18:18:10,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-19 18:18:10,825 INFO L87 Difference]: Start difference. First operand 143 states and 172 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:11,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:11,952 INFO L93 Difference]: Finished difference Result 357 states and 448 transitions. [2022-07-19 18:18:11,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:18:11,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-19 18:18:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:11,953 INFO L225 Difference]: With dead ends: 357 [2022-07-19 18:18:11,954 INFO L226 Difference]: Without dead ends: 348 [2022-07-19 18:18:11,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2022-07-19 18:18:11,954 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 715 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:11,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 3073 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:18:11,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-07-19 18:18:11,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 149. [2022-07-19 18:18:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 146 states have (on average 1.2191780821917808) internal successors, (178), 148 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2022-07-19 18:18:11,990 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 56 [2022-07-19 18:18:11,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:11,990 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2022-07-19 18:18:11,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2022-07-19 18:18:11,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 18:18:11,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:11,991 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] [2022-07-19 18:18:11,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:18:11,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:11,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:11,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1229531537, now seen corresponding path program 1 times [2022-07-19 18:18:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:11,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125186913] [2022-07-19 18:18:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:12,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:12,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125186913] [2022-07-19 18:18:12,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125186913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:12,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:12,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:18:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14353114] [2022-07-19 18:18:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:12,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:18:12,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:12,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:18:12,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:18:12,186 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:12,712 INFO L93 Difference]: Finished difference Result 319 states and 410 transitions. [2022-07-19 18:18:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:18:12,713 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-07-19 18:18:12,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:12,715 INFO L225 Difference]: With dead ends: 319 [2022-07-19 18:18:12,715 INFO L226 Difference]: Without dead ends: 313 [2022-07-19 18:18:12,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:18:12,716 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 563 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:12,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1686 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:18:12,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-07-19 18:18:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 130. [2022-07-19 18:18:12,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 128 states have (on average 1.21875) internal successors, (156), 129 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 156 transitions. [2022-07-19 18:18:12,748 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 156 transitions. Word has length 57 [2022-07-19 18:18:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:12,749 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 156 transitions. [2022-07-19 18:18:12,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 156 transitions. [2022-07-19 18:18:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 18:18:12,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:12,749 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] [2022-07-19 18:18:12,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:18:12,750 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:12,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:12,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1082760790, now seen corresponding path program 1 times [2022-07-19 18:18:12,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:12,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439447815] [2022-07-19 18:18:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:13,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:13,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439447815] [2022-07-19 18:18:13,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439447815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:13,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:13,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-19 18:18:13,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692060636] [2022-07-19 18:18:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:13,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 18:18:13,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 18:18:13,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:18:13,073 INFO L87 Difference]: Start difference. First operand 130 states and 156 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:13,964 INFO L93 Difference]: Finished difference Result 265 states and 332 transitions. [2022-07-19 18:18:13,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 18:18:13,965 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-07-19 18:18:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:13,966 INFO L225 Difference]: With dead ends: 265 [2022-07-19 18:18:13,966 INFO L226 Difference]: Without dead ends: 249 [2022-07-19 18:18:13,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-07-19 18:18:13,967 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 828 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:13,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1469 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:18:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-07-19 18:18:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 124. [2022-07-19 18:18:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 122 states have (on average 1.221311475409836) internal successors, (149), 123 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:13,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2022-07-19 18:18:13,991 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 57 [2022-07-19 18:18:13,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:13,991 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2022-07-19 18:18:13,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2022-07-19 18:18:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 18:18:13,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:13,992 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] [2022-07-19 18:18:13,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:18:13,992 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:13,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1556324125, now seen corresponding path program 1 times [2022-07-19 18:18:13,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:13,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780858482] [2022-07-19 18:18:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:13,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:14,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:14,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780858482] [2022-07-19 18:18:14,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780858482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:14,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:14,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:18:14,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058085772] [2022-07-19 18:18:14,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:14,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:18:14,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:14,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:18:14,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:18:14,181 INFO L87 Difference]: Start difference. First operand 124 states and 149 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:14,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:14,781 INFO L93 Difference]: Finished difference Result 377 states and 505 transitions. [2022-07-19 18:18:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:18:14,782 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-07-19 18:18:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:14,783 INFO L225 Difference]: With dead ends: 377 [2022-07-19 18:18:14,783 INFO L226 Difference]: Without dead ends: 357 [2022-07-19 18:18:14,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:18:14,785 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1004 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 941 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:18:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-07-19 18:18:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 104. [2022-07-19 18:18:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 103 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2022-07-19 18:18:14,810 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 57 [2022-07-19 18:18:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:14,811 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2022-07-19 18:18:14,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2022-07-19 18:18:14,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 18:18:14,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:14,811 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] [2022-07-19 18:18:14,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:18:14,812 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1117882514, now seen corresponding path program 1 times [2022-07-19 18:18:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:14,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875771124] [2022-07-19 18:18:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:14,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:14,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875771124] [2022-07-19 18:18:14,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875771124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:14,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:14,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 18:18:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042347860] [2022-07-19 18:18:14,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:14,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:14,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:14,848 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:14,994 INFO L93 Difference]: Finished difference Result 362 states and 506 transitions. [2022-07-19 18:18:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 18:18:14,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-07-19 18:18:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:14,996 INFO L225 Difference]: With dead ends: 362 [2022-07-19 18:18:14,996 INFO L226 Difference]: Without dead ends: 319 [2022-07-19 18:18:14,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:18:14,997 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 526 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:14,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 457 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-07-19 18:18:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 145. [2022-07-19 18:18:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.3055555555555556) internal successors, (188), 144 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2022-07-19 18:18:15,039 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 75 [2022-07-19 18:18:15,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:15,039 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2022-07-19 18:18:15,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2022-07-19 18:18:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:18:15,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:15,040 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] [2022-07-19 18:18:15,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:18:15,040 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:15,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1016465065, now seen corresponding path program 1 times [2022-07-19 18:18:15,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:15,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977351899] [2022-07-19 18:18:15,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:15,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:15,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:15,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977351899] [2022-07-19 18:18:15,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977351899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:15,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:15,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 18:18:15,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39240564] [2022-07-19 18:18:15,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:15,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:15,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:15,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:15,085 INFO L87 Difference]: Start difference. First operand 145 states and 188 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:15,251 INFO L93 Difference]: Finished difference Result 440 states and 618 transitions. [2022-07-19 18:18:15,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:15,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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 [2022-07-19 18:18:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:15,253 INFO L225 Difference]: With dead ends: 440 [2022-07-19 18:18:15,253 INFO L226 Difference]: Without dead ends: 356 [2022-07-19 18:18:15,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:18:15,254 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 292 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:15,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 417 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:15,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-07-19 18:18:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 227. [2022-07-19 18:18:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.3672566371681416) internal successors, (309), 226 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 309 transitions. [2022-07-19 18:18:15,324 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 309 transitions. Word has length 77 [2022-07-19 18:18:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:15,325 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 309 transitions. [2022-07-19 18:18:15,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 309 transitions. [2022-07-19 18:18:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:18:15,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:15,325 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] [2022-07-19 18:18:15,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:18:15,326 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:15,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1101947074, now seen corresponding path program 1 times [2022-07-19 18:18:15,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:15,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960261641] [2022-07-19 18:18:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:15,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:15,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:15,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960261641] [2022-07-19 18:18:15,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960261641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:15,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:15,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578458234] [2022-07-19 18:18:15,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:15,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:15,360 INFO L87 Difference]: Start difference. First operand 227 states and 309 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2022-07-19 18:18:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:15,497 INFO L93 Difference]: Finished difference Result 533 states and 751 transitions. [2022-07-19 18:18:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 [2022-07-19 18:18:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:15,499 INFO L225 Difference]: With dead ends: 533 [2022-07-19 18:18:15,499 INFO L226 Difference]: Without dead ends: 367 [2022-07-19 18:18:15,499 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 [2022-07-19 18:18:15,500 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 50 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:15,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 287 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-07-19 18:18:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2022-07-19 18:18:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.3681318681318682) internal successors, (498), 364 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 498 transitions. [2022-07-19 18:18:15,625 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 498 transitions. Word has length 77 [2022-07-19 18:18:15,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:15,625 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 498 transitions. [2022-07-19 18:18:15,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2022-07-19 18:18:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 498 transitions. [2022-07-19 18:18:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:18:15,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:15,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:18:15,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:18:15,629 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:15,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:15,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1035453562, now seen corresponding path program 1 times [2022-07-19 18:18:15,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:15,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721561099] [2022-07-19 18:18:15,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:15,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:15,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:15,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721561099] [2022-07-19 18:18:15,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721561099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:15,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:15,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894720019] [2022-07-19 18:18:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:15,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:15,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:15,663 INFO L87 Difference]: Start difference. First operand 365 states and 498 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2022-07-19 18:18:15,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:15,816 INFO L93 Difference]: Finished difference Result 671 states and 932 transitions. [2022-07-19 18:18:15,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:15,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 [2022-07-19 18:18:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:15,818 INFO L225 Difference]: With dead ends: 671 [2022-07-19 18:18:15,818 INFO L226 Difference]: Without dead ends: 367 [2022-07-19 18:18:15,819 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 [2022-07-19 18:18:15,820 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 50 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:15,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 207 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-07-19 18:18:15,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2022-07-19 18:18:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.3626373626373627) internal successors, (496), 364 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:15,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 496 transitions. [2022-07-19 18:18:15,955 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 496 transitions. Word has length 77 [2022-07-19 18:18:15,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:15,956 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 496 transitions. [2022-07-19 18:18:15,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2022-07-19 18:18:15,956 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 496 transitions. [2022-07-19 18:18:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:18:15,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:15,957 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] [2022-07-19 18:18:15,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:18:15,957 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:15,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:15,958 INFO L85 PathProgramCache]: Analyzing trace with hash -401787049, now seen corresponding path program 1 times [2022-07-19 18:18:15,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:15,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120311679] [2022-07-19 18:18:15,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:15,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:16,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:16,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120311679] [2022-07-19 18:18:16,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120311679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:16,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:16,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 18:18:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537438265] [2022-07-19 18:18:16,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:16,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:16,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:16,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:16,013 INFO L87 Difference]: Start difference. First operand 365 states and 496 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:16,342 INFO L93 Difference]: Finished difference Result 902 states and 1255 transitions. [2022-07-19 18:18:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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 [2022-07-19 18:18:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:16,345 INFO L225 Difference]: With dead ends: 902 [2022-07-19 18:18:16,345 INFO L226 Difference]: Without dead ends: 749 [2022-07-19 18:18:16,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:18:16,346 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 285 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:16,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 469 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-07-19 18:18:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 592. [2022-07-19 18:18:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 591 states have (on average 1.3824027072758038) internal successors, (817), 591 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 817 transitions. [2022-07-19 18:18:16,565 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 817 transitions. Word has length 77 [2022-07-19 18:18:16,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:16,566 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 817 transitions. [2022-07-19 18:18:16,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 817 transitions. [2022-07-19 18:18:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:18:16,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:16,567 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] [2022-07-19 18:18:16,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:18:16,567 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1826714967, now seen corresponding path program 1 times [2022-07-19 18:18:16,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:16,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027667341] [2022-07-19 18:18:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:16,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:16,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:16,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027667341] [2022-07-19 18:18:16,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027667341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:16,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:16,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 18:18:16,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453293073] [2022-07-19 18:18:16,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:16,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:18:16,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:18:16,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:18:16,605 INFO L87 Difference]: Start difference. First operand 592 states and 817 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:16,999 INFO L93 Difference]: Finished difference Result 1053 states and 1469 transitions. [2022-07-19 18:18:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:18:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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 [2022-07-19 18:18:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:17,002 INFO L225 Difference]: With dead ends: 1053 [2022-07-19 18:18:17,002 INFO L226 Difference]: Without dead ends: 900 [2022-07-19 18:18:17,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:18:17,003 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 287 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:17,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 418 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-07-19 18:18:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 743. [2022-07-19 18:18:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.389487870619946) internal successors, (1031), 742 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1031 transitions. [2022-07-19 18:18:17,293 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1031 transitions. Word has length 77 [2022-07-19 18:18:17,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:17,295 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1031 transitions. [2022-07-19 18:18:17,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-07-19 18:18:17,295 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1031 transitions. [2022-07-19 18:18:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:18:17,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:17,296 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] [2022-07-19 18:18:17,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 18:18:17,296 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:17,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash 275968985, now seen corresponding path program 1 times [2022-07-19 18:18:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:17,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253721581] [2022-07-19 18:18:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:17,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:17,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253721581] [2022-07-19 18:18:17,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253721581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:17,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:17,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949049035] [2022-07-19 18:18:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:17,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:17,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:17,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:17,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:17,343 INFO L87 Difference]: Start difference. First operand 743 states and 1031 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) [2022-07-19 18:18:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:17,837 INFO L93 Difference]: Finished difference Result 1864 states and 2602 transitions. [2022-07-19 18:18:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:17,837 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 [2022-07-19 18:18:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:17,840 INFO L225 Difference]: With dead ends: 1864 [2022-07-19 18:18:17,840 INFO L226 Difference]: Without dead ends: 1182 [2022-07-19 18:18:17,841 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 [2022-07-19 18:18:17,842 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:17,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 267 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-07-19 18:18:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1108. [2022-07-19 18:18:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 1.3794037940379404) internal successors, (1527), 1107 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1527 transitions. [2022-07-19 18:18:18,273 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1527 transitions. Word has length 78 [2022-07-19 18:18:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 1108 states and 1527 transitions. [2022-07-19 18:18:18,274 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) [2022-07-19 18:18:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1527 transitions. [2022-07-19 18:18:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:18:18,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:18,274 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] [2022-07-19 18:18:18,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 18:18:18,275 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:18,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:18,275 INFO L85 PathProgramCache]: Analyzing trace with hash -163971304, now seen corresponding path program 1 times [2022-07-19 18:18:18,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:18,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108103441] [2022-07-19 18:18:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:18,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:18,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108103441] [2022-07-19 18:18:18,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108103441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:18,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:18,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:18,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023181619] [2022-07-19 18:18:18,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:18,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:18,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:18,306 INFO L87 Difference]: Start difference. First operand 1108 states and 1527 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2022-07-19 18:18:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:18,810 INFO L93 Difference]: Finished difference Result 2198 states and 3047 transitions. [2022-07-19 18:18:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:18,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 [2022-07-19 18:18:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:18,814 INFO L225 Difference]: With dead ends: 2198 [2022-07-19 18:18:18,814 INFO L226 Difference]: Without dead ends: 1151 [2022-07-19 18:18:18,815 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 [2022-07-19 18:18:18,816 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 67 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:18,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 202 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-07-19 18:18:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1149. [2022-07-19 18:18:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 1.363240418118467) internal successors, (1565), 1148 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1565 transitions. [2022-07-19 18:18:19,269 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1565 transitions. Word has length 79 [2022-07-19 18:18:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:19,270 INFO L495 AbstractCegarLoop]: Abstraction has 1149 states and 1565 transitions. [2022-07-19 18:18:19,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2022-07-19 18:18:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1565 transitions. [2022-07-19 18:18:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:18:19,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:19,271 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] [2022-07-19 18:18:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 18:18:19,271 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:19,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1432796505, now seen corresponding path program 1 times [2022-07-19 18:18:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:19,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535426290] [2022-07-19 18:18:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:19,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:19,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535426290] [2022-07-19 18:18:19,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535426290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:19,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:19,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:19,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567825458] [2022-07-19 18:18:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:19,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:19,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:19,299 INFO L87 Difference]: Start difference. First operand 1149 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2022-07-19 18:18:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:20,192 INFO L93 Difference]: Finished difference Result 3213 states and 4369 transitions. [2022-07-19 18:18:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:20,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 [2022-07-19 18:18:20,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:20,197 INFO L225 Difference]: With dead ends: 3213 [2022-07-19 18:18:20,198 INFO L226 Difference]: Without dead ends: 2125 [2022-07-19 18:18:20,199 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 [2022-07-19 18:18:20,199 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:20,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2022-07-19 18:18:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2011. [2022-07-19 18:18:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 2010 states have (on average 1.3432835820895523) internal successors, (2700), 2010 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:21,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2700 transitions. [2022-07-19 18:18:21,087 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2700 transitions. Word has length 79 [2022-07-19 18:18:21,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:21,087 INFO L495 AbstractCegarLoop]: Abstraction has 2011 states and 2700 transitions. [2022-07-19 18:18:21,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2022-07-19 18:18:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2700 transitions. [2022-07-19 18:18:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 18:18:21,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:21,088 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] [2022-07-19 18:18:21,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 18:18:21,089 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:21,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:21,089 INFO L85 PathProgramCache]: Analyzing trace with hash -21206962, now seen corresponding path program 1 times [2022-07-19 18:18:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:21,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070740442] [2022-07-19 18:18:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:21,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:21,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:21,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070740442] [2022-07-19 18:18:21,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070740442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:21,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:21,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:18:21,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678059521] [2022-07-19 18:18:21,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:21,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:18:21,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:21,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:18:21,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:18:21,128 INFO L87 Difference]: Start difference. First operand 2011 states and 2700 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2022-07-19 18:18:22,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:22,757 INFO L93 Difference]: Finished difference Result 5687 states and 7578 transitions. [2022-07-19 18:18:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:18:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 [2022-07-19 18:18:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:22,766 INFO L225 Difference]: With dead ends: 5687 [2022-07-19 18:18:22,766 INFO L226 Difference]: Without dead ends: 3737 [2022-07-19 18:18:22,768 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 [2022-07-19 18:18:22,768 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 42 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:22,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2022-07-19 18:18:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3511. [2022-07-19 18:18:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3511 states, 3510 states have (on average 1.3122507122507123) internal successors, (4606), 3510 states have internal predecessors, (4606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 4606 transitions. [2022-07-19 18:18:24,238 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 4606 transitions. Word has length 80 [2022-07-19 18:18:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:24,238 INFO L495 AbstractCegarLoop]: Abstraction has 3511 states and 4606 transitions. [2022-07-19 18:18:24,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2022-07-19 18:18:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 4606 transitions. [2022-07-19 18:18:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:18:24,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:24,238 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] [2022-07-19 18:18:24,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 18:18:24,238 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:24,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1223980109, now seen corresponding path program 1 times [2022-07-19 18:18:24,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:24,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250905688] [2022-07-19 18:18:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:24,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:24,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:24,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250905688] [2022-07-19 18:18:24,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250905688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:24,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:24,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:18:24,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224351964] [2022-07-19 18:18:24,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:24,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 18:18:24,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:24,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 18:18:24,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 18:18:24,280 INFO L87 Difference]: Start difference. First operand 3511 states and 4606 transitions. Second operand has 6 states, 6 states have (on average 13.5) 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) [2022-07-19 18:18:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:26,753 INFO L93 Difference]: Finished difference Result 5280 states and 6921 transitions. [2022-07-19 18:18:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 18:18:26,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) 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 [2022-07-19 18:18:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:26,766 INFO L225 Difference]: With dead ends: 5280 [2022-07-19 18:18:26,766 INFO L226 Difference]: Without dead ends: 5278 [2022-07-19 18:18:26,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:26,767 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 201 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:26,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 632 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:18:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5278 states. [2022-07-19 18:18:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5278 to 3607. [2022-07-19 18:18:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3607 states, 3606 states have (on average 1.2928452579034941) internal successors, (4662), 3606 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:28,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 4662 transitions. [2022-07-19 18:18:28,443 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 4662 transitions. Word has length 81 [2022-07-19 18:18:28,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:28,444 INFO L495 AbstractCegarLoop]: Abstraction has 3607 states and 4662 transitions. [2022-07-19 18:18:28,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) 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) [2022-07-19 18:18:28,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 4662 transitions. [2022-07-19 18:18:28,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-19 18:18:28,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:28,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:18:28,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 18:18:28,445 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:18:28,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:28,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1680108859, now seen corresponding path program 1 times [2022-07-19 18:18:28,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:28,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751560992] [2022-07-19 18:18:28,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:28,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751560992] [2022-07-19 18:18:28,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751560992] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 18:18:28,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944778069] [2022-07-19 18:18:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:28,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 18:18:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:18:28,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 18:18:28,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 18:18:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:28,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 18:18:28,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 18:18:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:29,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 18:18:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:30,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944778069] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 18:18:30,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 18:18:30,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-07-19 18:18:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999269859] [2022-07-19 18:18:30,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 18:18:30,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 18:18:30,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 18:18:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-07-19 18:18:30,457 INFO L87 Difference]: Start difference. First operand 3607 states and 4662 transitions. Second operand has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:19:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:19:40,497 INFO L93 Difference]: Finished difference Result 83261 states and 104826 transitions. [2022-07-19 18:19:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 348 states. [2022-07-19 18:19:40,497 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 0 states have call successors, (0), 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 103 [2022-07-19 18:19:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:19:40,680 INFO L225 Difference]: With dead ends: 83261 [2022-07-19 18:19:40,681 INFO L226 Difference]: Without dead ends: 79715 [2022-07-19 18:19:40,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60625 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=15708, Invalid=124542, Unknown=0, NotChecked=0, Total=140250 [2022-07-19 18:19:40,719 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 9385 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 4231 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9385 SdHoareTripleChecker+Valid, 4806 SdHoareTripleChecker+Invalid, 4694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 4231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:19:40,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9385 Valid, 4806 Invalid, 4694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 4231 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 18:19:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79715 states. [2022-07-19 18:19:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79715 to 18887. [2022-07-19 18:19:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18887 states, 18886 states have (on average 1.2843376045748174) internal successors, (24256), 18886 states have internal predecessors, (24256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:19:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18887 states to 18887 states and 24256 transitions. [2022-07-19 18:19:52,711 INFO L78 Accepts]: Start accepts. Automaton has 18887 states and 24256 transitions. Word has length 103 [2022-07-19 18:19:52,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:19:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 18887 states and 24256 transitions. [2022-07-19 18:19:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:19:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 18887 states and 24256 transitions. [2022-07-19 18:19:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 18:19:52,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:19:52,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:19:52,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 18:19:52,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-19 18:19:52,932 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-19 18:19:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:19:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash -448392738, now seen corresponding path program 1 times [2022-07-19 18:19:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:19:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252980025] [2022-07-19 18:19:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:19:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:19:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:19:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:19:53,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:19:53,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252980025] [2022-07-19 18:19:53,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252980025] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 18:19:53,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474745250] [2022-07-19 18:19:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:19:53,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 18:19:53,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:19:53,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 18:19:53,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 18:19:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:19:53,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 18:19:53,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 18:19:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:19:53,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 18:19:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:19:54,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474745250] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 18:19:54,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 18:19:54,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2022-07-19 18:19:54,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272724711] [2022-07-19 18:19:54,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 18:19:54,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-19 18:19:54,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:19:54,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-19 18:19:54,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2022-07-19 18:19:54,644 INFO L87 Difference]: Start difference. First operand 18887 states and 24256 transitions. Second operand has 28 states, 28 states have (on average 10.178571428571429) internal successors, (285), 28 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)