./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fcbb6774587cda7a5d573623a9a47b3e351563c8bea7eebdf86bc25d20b8061 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:37:51,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:37:51,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:37:51,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:37:51,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:37:51,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:37:51,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:37:51,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:37:51,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:37:51,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:37:51,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:37:51,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:37:51,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:37:51,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:37:51,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:37:51,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:37:51,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:37:51,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:37:51,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:37:51,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:37:51,381 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:37:51,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:37:51,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:37:51,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:37:51,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:37:51,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:37:51,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:37:51,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:37:51,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:37:51,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:37:51,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:37:51,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:37:51,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:37:51,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:37:51,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:37:51,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:37:51,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:37:51,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:37:51,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:37:51,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:37:51,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:37:51,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:37:51,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:37:51,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:37:51,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:37:51,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:37:51,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:37:51,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:37:51,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:37:51,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:37:51,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:37:51,431 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:37:51,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:37:51,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:37:51,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:37:51,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:37:51,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:37:51,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:37:51,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:37:51,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:37:51,434 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:37:51,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:37:51,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:37:51,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:37:51,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:37:51,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:37:51,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:37:51,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:37:51,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:37:51,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:37:51,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:37:51,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:37:51,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:37:51,436 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:37:51,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:37:51,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:37:51,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fcbb6774587cda7a5d573623a9a47b3e351563c8bea7eebdf86bc25d20b8061 [2022-07-22 18:37:51,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:37:51,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:37:51,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:37:51,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:37:51,707 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:37:51,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-22 18:37:51,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2237c209/a89b7177796f428b8eee602cf58978ac/FLAG38afa3de6 [2022-07-22 18:37:52,255 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:37:52,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-22 18:37:52,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2237c209/a89b7177796f428b8eee602cf58978ac/FLAG38afa3de6 [2022-07-22 18:37:52,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2237c209/a89b7177796f428b8eee602cf58978ac [2022-07-22 18:37:52,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:37:52,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:37:52,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:37:52,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:37:52,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:37:52,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:37:52" (1/1) ... [2022-07-22 18:37:52,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0fb424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:52, skipping insertion in model container [2022-07-22 18:37:52,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:37:52" (1/1) ... [2022-07-22 18:37:52,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:37:52,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:37:52,958 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-07-22 18:37:52,990 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-07-22 18:37:53,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-07-22 18:37:53,017 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-07-22 18:37:53,036 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-07-22 18:37:53,042 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-07-22 18:37:53,056 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-07-22 18:37:53,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-07-22 18:37:53,072 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-07-22 18:37:53,078 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-07-22 18:37:53,093 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-07-22 18:37:53,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:37:53,206 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:37:53,257 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2022-07-22 18:37:53,270 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2022-07-22 18:37:53,274 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2022-07-22 18:37:53,277 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2022-07-22 18:37:53,287 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2022-07-22 18:37:53,289 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2022-07-22 18:37:53,292 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2022-07-22 18:37:53,299 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2022-07-22 18:37:53,309 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2022-07-22 18:37:53,312 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2022-07-22 18:37:53,324 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2022-07-22 18:37:53,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:37:53,398 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:37:53,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53 WrapperNode [2022-07-22 18:37:53,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:37:53,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:37:53,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:37:53,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:37:53,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,510 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1788 [2022-07-22 18:37:53,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:37:53,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:37:53,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:37:53,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:37:53,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:37:53,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:37:53,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:37:53,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:37:53,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (1/1) ... [2022-07-22 18:37:53,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:37:53,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:37:53,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 18:37:53,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 18:37:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:37:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:37:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:37:53,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:37:53,843 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:37:53,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:37:54,628 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:37:54,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:37:54,637 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 18:37:54,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:37:54 BoogieIcfgContainer [2022-07-22 18:37:54,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:37:54,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:37:54,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:37:54,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:37:54,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:37:52" (1/3) ... [2022-07-22 18:37:54,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbdee59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:37:54, skipping insertion in model container [2022-07-22 18:37:54,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:37:53" (2/3) ... [2022-07-22 18:37:54,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbdee59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:37:54, skipping insertion in model container [2022-07-22 18:37:54,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:37:54" (3/3) ... [2022-07-22 18:37:54,645 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-22 18:37:54,657 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:37:54,657 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-07-22 18:37:54,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:37:54,705 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@566f32c4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e5b91c [2022-07-22 18:37:54,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-22 18:37:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-22 18:37:54,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:54,722 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] [2022-07-22 18:37:54,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:54,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1863160701, now seen corresponding path program 1 times [2022-07-22 18:37:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:54,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318219945] [2022-07-22 18:37:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:54,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:55,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:55,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318219945] [2022-07-22 18:37:55,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318219945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:55,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:55,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:37:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461924459] [2022-07-22 18:37:55,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:55,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:37:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:37:55,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:37:55,060 INFO L87 Difference]: Start difference. First operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 0 states have call successors, (0), 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 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:55,388 INFO L93 Difference]: Finished difference Result 569 states and 972 transitions. [2022-07-22 18:37:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:37:55,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-07-22 18:37:55,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:55,408 INFO L225 Difference]: With dead ends: 569 [2022-07-22 18:37:55,408 INFO L226 Difference]: Without dead ends: 293 [2022-07-22 18:37:55,418 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 [2022-07-22 18:37:55,422 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1450 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:55,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 362 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:37:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-07-22 18:37:55,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-07-22 18:37:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 282 states have (on average 1.301418439716312) internal successors, (367), 292 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 367 transitions. [2022-07-22 18:37:55,481 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 367 transitions. Word has length 58 [2022-07-22 18:37:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:55,481 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 367 transitions. [2022-07-22 18:37:55,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 367 transitions. [2022-07-22 18:37:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 18:37:55,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:55,487 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] [2022-07-22 18:37:55,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 18:37:55,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:55,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:55,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1094505509, now seen corresponding path program 1 times [2022-07-22 18:37:55,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:55,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422661206] [2022-07-22 18:37:55,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:55,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:55,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:55,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422661206] [2022-07-22 18:37:55,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422661206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:55,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:55,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:37:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993443544] [2022-07-22 18:37:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:55,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:37:55,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:55,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:37:55,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:37:55,604 INFO L87 Difference]: Start difference. First operand 293 states and 367 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:55,826 INFO L93 Difference]: Finished difference Result 496 states and 637 transitions. [2022-07-22 18:37:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:37:55,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-07-22 18:37:55,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:55,829 INFO L225 Difference]: With dead ends: 496 [2022-07-22 18:37:55,829 INFO L226 Difference]: Without dead ends: 273 [2022-07-22 18:37:55,830 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 [2022-07-22 18:37:55,831 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 933 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:55,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 211 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:37:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-07-22 18:37:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2022-07-22 18:37:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.3053435114503817) internal successors, (342), 272 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 342 transitions. [2022-07-22 18:37:55,850 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 342 transitions. Word has length 59 [2022-07-22 18:37:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:55,851 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 342 transitions. [2022-07-22 18:37:55,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 342 transitions. [2022-07-22 18:37:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-22 18:37:55,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:55,853 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] [2022-07-22 18:37:55,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 18:37:55,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash 568036411, now seen corresponding path program 1 times [2022-07-22 18:37:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:55,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772019718] [2022-07-22 18:37:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:55,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:55,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:55,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772019718] [2022-07-22 18:37:55,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772019718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:55,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:55,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:37:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561529758] [2022-07-22 18:37:55,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:55,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:37:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:55,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:37:55,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:37:55,986 INFO L87 Difference]: Start difference. First operand 273 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:56,162 INFO L93 Difference]: Finished difference Result 476 states and 611 transitions. [2022-07-22 18:37:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:37:56,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-07-22 18:37:56,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:56,165 INFO L225 Difference]: With dead ends: 476 [2022-07-22 18:37:56,165 INFO L226 Difference]: Without dead ends: 254 [2022-07-22 18:37:56,166 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 [2022-07-22 18:37:56,168 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 905 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:56,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 200 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:37:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-07-22 18:37:56,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2022-07-22 18:37:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.316872427983539) internal successors, (320), 253 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 320 transitions. [2022-07-22 18:37:56,197 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 320 transitions. Word has length 60 [2022-07-22 18:37:56,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:56,197 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 320 transitions. [2022-07-22 18:37:56,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,198 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 320 transitions. [2022-07-22 18:37:56,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 18:37:56,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:56,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:37:56,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 18:37:56,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:56,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash -715476529, now seen corresponding path program 1 times [2022-07-22 18:37:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:56,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814799754] [2022-07-22 18:37:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:56,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:56,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:56,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814799754] [2022-07-22 18:37:56,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814799754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:56,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:56,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:37:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758676076] [2022-07-22 18:37:56,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:37:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:37:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:37:56,309 INFO L87 Difference]: Start difference. First operand 254 states and 320 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:56,473 INFO L93 Difference]: Finished difference Result 457 states and 588 transitions. [2022-07-22 18:37:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:37:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-22 18:37:56,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:56,476 INFO L225 Difference]: With dead ends: 457 [2022-07-22 18:37:56,476 INFO L226 Difference]: Without dead ends: 246 [2022-07-22 18:37:56,477 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 [2022-07-22 18:37:56,479 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 858 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:56,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 196 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:37:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-07-22 18:37:56,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-07-22 18:37:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 245 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 310 transitions. [2022-07-22 18:37:56,496 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 310 transitions. Word has length 61 [2022-07-22 18:37:56,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:56,498 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 310 transitions. [2022-07-22 18:37:56,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 310 transitions. [2022-07-22 18:37:56,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-22 18:37:56,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:56,501 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] [2022-07-22 18:37:56,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 18:37:56,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash 207205371, now seen corresponding path program 1 times [2022-07-22 18:37:56,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:56,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552120098] [2022-07-22 18:37:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:56,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:56,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:56,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552120098] [2022-07-22 18:37:56,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552120098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:56,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:56,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:37:56,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122196044] [2022-07-22 18:37:56,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:56,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:37:56,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:56,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:37:56,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:37:56,645 INFO L87 Difference]: Start difference. First operand 246 states and 310 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:57,282 INFO L93 Difference]: Finished difference Result 580 states and 772 transitions. [2022-07-22 18:37:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:37:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-22 18:37:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:57,285 INFO L225 Difference]: With dead ends: 580 [2022-07-22 18:37:57,285 INFO L226 Difference]: Without dead ends: 492 [2022-07-22 18:37:57,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:37:57,287 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1566 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:57,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 877 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:37:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-22 18:37:57,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 246. [2022-07-22 18:37:57,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3148936170212766) internal successors, (309), 245 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) [2022-07-22 18:37:57,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 309 transitions. [2022-07-22 18:37:57,308 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 309 transitions. Word has length 62 [2022-07-22 18:37:57,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:57,309 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 309 transitions. [2022-07-22 18:37:57,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:57,309 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 309 transitions. [2022-07-22 18:37:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-22 18:37:57,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:57,310 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] [2022-07-22 18:37:57,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 18:37:57,311 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:57,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:57,311 INFO L85 PathProgramCache]: Analyzing trace with hash -201639857, now seen corresponding path program 1 times [2022-07-22 18:37:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:57,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608361855] [2022-07-22 18:37:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:57,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:57,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:57,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608361855] [2022-07-22 18:37:57,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608361855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:57,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:57,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:37:57,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939830540] [2022-07-22 18:37:57,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:57,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:37:57,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:57,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:37:57,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:37:57,435 INFO L87 Difference]: Start difference. First operand 246 states and 309 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:58,102 INFO L93 Difference]: Finished difference Result 554 states and 738 transitions. [2022-07-22 18:37:58,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:37:58,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-22 18:37:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:58,105 INFO L225 Difference]: With dead ends: 554 [2022-07-22 18:37:58,105 INFO L226 Difference]: Without dead ends: 488 [2022-07-22 18:37:58,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:37:58,106 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1847 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:58,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 1005 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:37:58,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-22 18:37:58,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-07-22 18:37:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3106382978723403) internal successors, (308), 245 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 308 transitions. [2022-07-22 18:37:58,128 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 308 transitions. Word has length 62 [2022-07-22 18:37:58,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:58,128 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 308 transitions. [2022-07-22 18:37:58,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,129 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 308 transitions. [2022-07-22 18:37:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-22 18:37:58,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:58,130 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] [2022-07-22 18:37:58,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 18:37:58,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:58,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:58,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1938423665, now seen corresponding path program 1 times [2022-07-22 18:37:58,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:58,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414151718] [2022-07-22 18:37:58,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:58,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:58,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:58,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414151718] [2022-07-22 18:37:58,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414151718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:58,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:58,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 18:37:58,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604048976] [2022-07-22 18:37:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:58,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:37:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:37:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:37:58,296 INFO L87 Difference]: Start difference. First operand 246 states and 308 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:58,881 INFO L93 Difference]: Finished difference Result 582 states and 771 transitions. [2022-07-22 18:37:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:37:58,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-22 18:37:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:58,884 INFO L225 Difference]: With dead ends: 582 [2022-07-22 18:37:58,884 INFO L226 Difference]: Without dead ends: 488 [2022-07-22 18:37:58,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:37:58,885 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1705 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:58,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 1101 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:37:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-22 18:37:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-07-22 18:37:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 245 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 307 transitions. [2022-07-22 18:37:58,908 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 307 transitions. Word has length 62 [2022-07-22 18:37:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:58,908 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 307 transitions. [2022-07-22 18:37:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 307 transitions. [2022-07-22 18:37:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-22 18:37:58,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:58,909 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] [2022-07-22 18:37:58,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 18:37:58,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:58,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:58,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1233191565, now seen corresponding path program 1 times [2022-07-22 18:37:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:58,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177228050] [2022-07-22 18:37:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:58,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:59,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:59,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177228050] [2022-07-22 18:37:59,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177228050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:59,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:59,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 18:37:59,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362918437] [2022-07-22 18:37:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:59,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:37:59,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:37:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:37:59,030 INFO L87 Difference]: Start difference. First operand 246 states and 307 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:59,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:37:59,710 INFO L93 Difference]: Finished difference Result 481 states and 626 transitions. [2022-07-22 18:37:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:37:59,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-22 18:37:59,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:37:59,713 INFO L225 Difference]: With dead ends: 481 [2022-07-22 18:37:59,713 INFO L226 Difference]: Without dead ends: 476 [2022-07-22 18:37:59,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:37:59,714 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1388 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:37:59,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1333 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:37:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-22 18:37:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 246. [2022-07-22 18:37:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 245 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 306 transitions. [2022-07-22 18:37:59,742 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 306 transitions. Word has length 62 [2022-07-22 18:37:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:37:59,743 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 306 transitions. [2022-07-22 18:37:59,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:37:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 306 transitions. [2022-07-22 18:37:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-22 18:37:59,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:37:59,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:37:59,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 18:37:59,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:37:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:37:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash 679005537, now seen corresponding path program 1 times [2022-07-22 18:37:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:37:59,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553790138] [2022-07-22 18:37:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:37:59,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:37:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:37:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:37:59,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:37:59,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553790138] [2022-07-22 18:37:59,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553790138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:37:59,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:37:59,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:37:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98511007] [2022-07-22 18:37:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:37:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:37:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:37:59,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:37:59,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:37:59,846 INFO L87 Difference]: Start difference. First operand 246 states and 306 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:00,225 INFO L93 Difference]: Finished difference Result 485 states and 606 transitions. [2022-07-22 18:38:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:38:00,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-22 18:38:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:00,229 INFO L225 Difference]: With dead ends: 485 [2022-07-22 18:38:00,229 INFO L226 Difference]: Without dead ends: 352 [2022-07-22 18:38:00,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:38:00,230 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1611 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:00,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1611 Valid, 632 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-22 18:38:00,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 246. [2022-07-22 18:38:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.297872340425532) internal successors, (305), 245 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 305 transitions. [2022-07-22 18:38:00,253 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 305 transitions. Word has length 62 [2022-07-22 18:38:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:00,254 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 305 transitions. [2022-07-22 18:38:00,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 305 transitions. [2022-07-22 18:38:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 18:38:00,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:00,255 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] [2022-07-22 18:38:00,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 18:38:00,255 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:00,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:00,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2031197374, now seen corresponding path program 1 times [2022-07-22 18:38:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482105635] [2022-07-22 18:38:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:00,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:00,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482105635] [2022-07-22 18:38:00,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482105635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:00,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:00,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:00,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398257665] [2022-07-22 18:38:00,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:00,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:00,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:00,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:00,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:00,344 INFO L87 Difference]: Start difference. First operand 246 states and 305 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:00,919 INFO L93 Difference]: Finished difference Result 539 states and 709 transitions. [2022-07-22 18:38:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:00,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-22 18:38:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:00,922 INFO L225 Difference]: With dead ends: 539 [2022-07-22 18:38:00,922 INFO L226 Difference]: Without dead ends: 480 [2022-07-22 18:38:00,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:00,923 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 946 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:00,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 962 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:38:00,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-22 18:38:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-07-22 18:38:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2936170212765958) internal successors, (304), 245 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions. [2022-07-22 18:38:00,952 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 64 [2022-07-22 18:38:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:00,952 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 304 transitions. [2022-07-22 18:38:00,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions. [2022-07-22 18:38:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 18:38:00,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:00,953 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] [2022-07-22 18:38:00,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 18:38:00,954 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:00,954 INFO L85 PathProgramCache]: Analyzing trace with hash -119000272, now seen corresponding path program 1 times [2022-07-22 18:38:00,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:00,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134891295] [2022-07-22 18:38:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:00,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:01,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:01,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134891295] [2022-07-22 18:38:01,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134891295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:01,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:01,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:01,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570178875] [2022-07-22 18:38:01,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:01,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:01,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:01,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:01,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:01,053 INFO L87 Difference]: Start difference. First operand 246 states and 304 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:01,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:01,684 INFO L93 Difference]: Finished difference Result 559 states and 737 transitions. [2022-07-22 18:38:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-22 18:38:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:01,686 INFO L225 Difference]: With dead ends: 559 [2022-07-22 18:38:01,686 INFO L226 Difference]: Without dead ends: 488 [2022-07-22 18:38:01,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:01,688 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 858 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:01,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1251 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:38:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-22 18:38:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-07-22 18:38:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 245 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:01,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 303 transitions. [2022-07-22 18:38:01,715 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 303 transitions. Word has length 64 [2022-07-22 18:38:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:01,715 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 303 transitions. [2022-07-22 18:38:01,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:01,716 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2022-07-22 18:38:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 18:38:01,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:01,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:01,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 18:38:01,717 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:01,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1520301075, now seen corresponding path program 1 times [2022-07-22 18:38:01,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:01,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627557186] [2022-07-22 18:38:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:01,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:01,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:01,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627557186] [2022-07-22 18:38:01,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627557186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:01,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:01,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:01,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224675358] [2022-07-22 18:38:01,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:01,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:01,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:01,804 INFO L87 Difference]: Start difference. First operand 246 states and 303 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:02,389 INFO L93 Difference]: Finished difference Result 536 states and 704 transitions. [2022-07-22 18:38:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-22 18:38:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:02,391 INFO L225 Difference]: With dead ends: 536 [2022-07-22 18:38:02,391 INFO L226 Difference]: Without dead ends: 480 [2022-07-22 18:38:02,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:02,392 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 867 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:02,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1116 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:38:02,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-22 18:38:02,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-07-22 18:38:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2851063829787235) internal successors, (302), 245 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2022-07-22 18:38:02,420 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 64 [2022-07-22 18:38:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:02,421 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2022-07-22 18:38:02,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2022-07-22 18:38:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 18:38:02,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:02,422 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] [2022-07-22 18:38:02,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 18:38:02,422 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1508633347, now seen corresponding path program 1 times [2022-07-22 18:38:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:02,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322386340] [2022-07-22 18:38:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:02,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:02,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322386340] [2022-07-22 18:38:02,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322386340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:02,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:02,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327238392] [2022-07-22 18:38:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:02,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:02,505 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:03,185 INFO L93 Difference]: Finished difference Result 485 states and 625 transitions. [2022-07-22 18:38:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-22 18:38:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:03,188 INFO L225 Difference]: With dead ends: 485 [2022-07-22 18:38:03,188 INFO L226 Difference]: Without dead ends: 480 [2022-07-22 18:38:03,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:03,189 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1441 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:03,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 1252 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:38:03,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-22 18:38:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2022-07-22 18:38:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 245 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 301 transitions. [2022-07-22 18:38:03,220 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 301 transitions. Word has length 64 [2022-07-22 18:38:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:03,220 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 301 transitions. [2022-07-22 18:38:03,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:03,220 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 301 transitions. [2022-07-22 18:38:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-22 18:38:03,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:03,221 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] [2022-07-22 18:38:03,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 18:38:03,222 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:03,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1008042549, now seen corresponding path program 1 times [2022-07-22 18:38:03,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:03,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273952470] [2022-07-22 18:38:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:03,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:03,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:03,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273952470] [2022-07-22 18:38:03,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273952470] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:03,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:03,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:03,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032685958] [2022-07-22 18:38:03,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:03,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:03,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:03,309 INFO L87 Difference]: Start difference. First operand 246 states and 301 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:04,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:04,004 INFO L93 Difference]: Finished difference Result 505 states and 652 transitions. [2022-07-22 18:38:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:04,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-22 18:38:04,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:04,007 INFO L225 Difference]: With dead ends: 505 [2022-07-22 18:38:04,007 INFO L226 Difference]: Without dead ends: 488 [2022-07-22 18:38:04,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:38:04,008 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1413 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:04,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 1308 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:38:04,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-22 18:38:04,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 246. [2022-07-22 18:38:04,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 245 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) [2022-07-22 18:38:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2022-07-22 18:38:04,038 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 64 [2022-07-22 18:38:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:04,038 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2022-07-22 18:38:04,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2022-07-22 18:38:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:04,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:04,039 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] [2022-07-22 18:38:04,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 18:38:04,040 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 370944031, now seen corresponding path program 1 times [2022-07-22 18:38:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:04,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318919771] [2022-07-22 18:38:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:04,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:04,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318919771] [2022-07-22 18:38:04,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318919771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:04,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:04,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:38:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166150525] [2022-07-22 18:38:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:04,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:38:04,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:04,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:38:04,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:38:04,292 INFO L87 Difference]: Start difference. First operand 246 states and 300 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:05,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:05,073 INFO L93 Difference]: Finished difference Result 708 states and 925 transitions. [2022-07-22 18:38:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 18:38:05,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:05,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:05,076 INFO L225 Difference]: With dead ends: 708 [2022-07-22 18:38:05,076 INFO L226 Difference]: Without dead ends: 591 [2022-07-22 18:38:05,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:05,079 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1971 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 1489 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:05,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 1489 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-22 18:38:05,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 183. [2022-07-22 18:38:05,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.2670454545454546) internal successors, (223), 182 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:05,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2022-07-22 18:38:05,115 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 66 [2022-07-22 18:38:05,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:05,115 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2022-07-22 18:38:05,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:05,116 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2022-07-22 18:38:05,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:05,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:05,116 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] [2022-07-22 18:38:05,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 18:38:05,117 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:05,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:05,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1787778406, now seen corresponding path program 1 times [2022-07-22 18:38:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:05,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149785391] [2022-07-22 18:38:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:05,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:05,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149785391] [2022-07-22 18:38:05,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149785391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:05,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:05,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:38:05,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956232486] [2022-07-22 18:38:05,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:05,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:05,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:05,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:05,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:05,388 INFO L87 Difference]: Start difference. First operand 183 states and 223 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:06,135 INFO L93 Difference]: Finished difference Result 570 states and 775 transitions. [2022-07-22 18:38:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:38:06,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:06,149 INFO L225 Difference]: With dead ends: 570 [2022-07-22 18:38:06,149 INFO L226 Difference]: Without dead ends: 500 [2022-07-22 18:38:06,150 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 [2022-07-22 18:38:06,150 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 1299 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:06,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 2517 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-22 18:38:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 167. [2022-07-22 18:38:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.2592592592592593) internal successors, (204), 166 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 204 transitions. [2022-07-22 18:38:06,187 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 204 transitions. Word has length 66 [2022-07-22 18:38:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:06,187 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 204 transitions. [2022-07-22 18:38:06,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 204 transitions. [2022-07-22 18:38:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:06,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:06,190 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] [2022-07-22 18:38:06,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 18:38:06,191 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:06,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1127331716, now seen corresponding path program 1 times [2022-07-22 18:38:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:06,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514258348] [2022-07-22 18:38:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:06,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:06,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:06,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514258348] [2022-07-22 18:38:06,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514258348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:06,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:06,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-07-22 18:38:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297592295] [2022-07-22 18:38:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:06,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 18:38:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 18:38:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-07-22 18:38:06,957 INFO L87 Difference]: Start difference. First operand 167 states and 204 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:09,524 INFO L93 Difference]: Finished difference Result 566 states and 721 transitions. [2022-07-22 18:38:09,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-22 18:38:09,527 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:09,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:09,530 INFO L225 Difference]: With dead ends: 566 [2022-07-22 18:38:09,530 INFO L226 Difference]: Without dead ends: 562 [2022-07-22 18:38:09,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=343, Invalid=1727, Unknown=0, NotChecked=0, Total=2070 [2022-07-22 18:38:09,533 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1779 mSDsluCounter, 4296 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:09,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 4612 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 18:38:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-22 18:38:09,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 182. [2022-07-22 18:38:09,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.265536723163842) internal successors, (224), 181 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2022-07-22 18:38:09,584 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 66 [2022-07-22 18:38:09,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:09,584 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2022-07-22 18:38:09,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2022-07-22 18:38:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:09,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:09,585 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] [2022-07-22 18:38:09,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 18:38:09,585 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -653185432, now seen corresponding path program 1 times [2022-07-22 18:38:09,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:09,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648706993] [2022-07-22 18:38:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:10,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:10,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648706993] [2022-07-22 18:38:10,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648706993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:10,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:10,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-22 18:38:10,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520445701] [2022-07-22 18:38:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-22 18:38:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-22 18:38:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:10,141 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:12,002 INFO L93 Difference]: Finished difference Result 599 states and 782 transitions. [2022-07-22 18:38:12,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:38:12,002 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:12,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:12,004 INFO L225 Difference]: With dead ends: 599 [2022-07-22 18:38:12,005 INFO L226 Difference]: Without dead ends: 538 [2022-07-22 18:38:12,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2022-07-22 18:38:12,007 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 2182 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:12,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 3519 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:38:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-07-22 18:38:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 187. [2022-07-22 18:38:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.2637362637362637) internal successors, (230), 186 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2022-07-22 18:38:12,057 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 66 [2022-07-22 18:38:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:12,058 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2022-07-22 18:38:12,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2022-07-22 18:38:12,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 18:38:12,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:12,059 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] [2022-07-22 18:38:12,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 18:38:12,059 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1241294901, now seen corresponding path program 1 times [2022-07-22 18:38:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:12,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004090515] [2022-07-22 18:38:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:12,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:12,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:12,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004090515] [2022-07-22 18:38:12,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004090515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:12,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:12,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:38:12,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880295294] [2022-07-22 18:38:12,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:12,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:12,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:12,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:12,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:12,338 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:12,933 INFO L93 Difference]: Finished difference Result 290 states and 361 transitions. [2022-07-22 18:38:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:38:12,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-22 18:38:12,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:12,935 INFO L225 Difference]: With dead ends: 290 [2022-07-22 18:38:12,935 INFO L226 Difference]: Without dead ends: 286 [2022-07-22 18:38:12,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:12,937 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 979 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:12,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 979 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:12,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-07-22 18:38:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 177. [2022-07-22 18:38:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 173 states have (on average 1.260115606936416) internal successors, (218), 176 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 218 transitions. [2022-07-22 18:38:13,009 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 218 transitions. Word has length 67 [2022-07-22 18:38:13,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:13,009 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 218 transitions. [2022-07-22 18:38:13,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 218 transitions. [2022-07-22 18:38:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 18:38:13,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:13,011 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] [2022-07-22 18:38:13,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 18:38:13,011 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash -539222247, now seen corresponding path program 1 times [2022-07-22 18:38:13,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:13,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744763342] [2022-07-22 18:38:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:13,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:13,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:13,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744763342] [2022-07-22 18:38:13,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744763342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:13,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:13,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-07-22 18:38:13,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097751868] [2022-07-22 18:38:13,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:13,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-22 18:38:13,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-22 18:38:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:38:13,656 INFO L87 Difference]: Start difference. First operand 177 states and 218 transitions. Second operand has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:15,715 INFO L93 Difference]: Finished difference Result 504 states and 656 transitions. [2022-07-22 18:38:15,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:38:15,715 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-22 18:38:15,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:15,717 INFO L225 Difference]: With dead ends: 504 [2022-07-22 18:38:15,717 INFO L226 Difference]: Without dead ends: 443 [2022-07-22 18:38:15,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-07-22 18:38:15,719 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1364 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:15,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 3381 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:38:15,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-22 18:38:15,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 162. [2022-07-22 18:38:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 1.2468354430379747) internal successors, (197), 161 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) [2022-07-22 18:38:15,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2022-07-22 18:38:15,791 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 67 [2022-07-22 18:38:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:15,791 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2022-07-22 18:38:15,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 20 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2022-07-22 18:38:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 18:38:15,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:15,792 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] [2022-07-22 18:38:15,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 18:38:15,793 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:15,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash -710008920, now seen corresponding path program 1 times [2022-07-22 18:38:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:15,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072120385] [2022-07-22 18:38:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:15,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:15,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:15,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072120385] [2022-07-22 18:38:15,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072120385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:15,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:15,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:15,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056926841] [2022-07-22 18:38:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:15,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:15,889 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:16,249 INFO L93 Difference]: Finished difference Result 315 states and 408 transitions. [2022-07-22 18:38:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:38:16,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-22 18:38:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:16,250 INFO L225 Difference]: With dead ends: 315 [2022-07-22 18:38:16,251 INFO L226 Difference]: Without dead ends: 243 [2022-07-22 18:38:16,251 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 [2022-07-22 18:38:16,252 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 509 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:16,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 606 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-07-22 18:38:16,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 162. [2022-07-22 18:38:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 158 states have (on average 1.240506329113924) internal successors, (196), 161 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) [2022-07-22 18:38:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 196 transitions. [2022-07-22 18:38:16,310 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 196 transitions. Word has length 67 [2022-07-22 18:38:16,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:16,310 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 196 transitions. [2022-07-22 18:38:16,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 196 transitions. [2022-07-22 18:38:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 18:38:16,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:16,312 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] [2022-07-22 18:38:16,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 18:38:16,312 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:16,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:16,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1303055616, now seen corresponding path program 1 times [2022-07-22 18:38:16,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:16,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997625047] [2022-07-22 18:38:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:16,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:16,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:16,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997625047] [2022-07-22 18:38:16,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997625047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:16,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:16,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:38:16,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126505785] [2022-07-22 18:38:16,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:16,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:16,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:16,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:16,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:16,491 INFO L87 Difference]: Start difference. First operand 162 states and 196 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:17,446 INFO L93 Difference]: Finished difference Result 407 states and 532 transitions. [2022-07-22 18:38:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:38:17,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-22 18:38:17,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:17,447 INFO L225 Difference]: With dead ends: 407 [2022-07-22 18:38:17,448 INFO L226 Difference]: Without dead ends: 400 [2022-07-22 18:38:17,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-22 18:38:17,449 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 1744 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:17,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 962 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:38:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-07-22 18:38:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 166. [2022-07-22 18:38:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.2345679012345678) internal successors, (200), 165 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-07-22 18:38:17,494 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 67 [2022-07-22 18:38:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:17,494 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-07-22 18:38:17,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-07-22 18:38:17,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-22 18:38:17,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:17,495 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] [2022-07-22 18:38:17,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 18:38:17,496 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:17,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:17,496 INFO L85 PathProgramCache]: Analyzing trace with hash 763644804, now seen corresponding path program 1 times [2022-07-22 18:38:17,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:17,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357134987] [2022-07-22 18:38:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:17,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:17,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357134987] [2022-07-22 18:38:17,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357134987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:17,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:17,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:38:17,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406072607] [2022-07-22 18:38:17,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:17,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:17,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:17,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:17,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:17,729 INFO L87 Difference]: Start difference. First operand 166 states and 200 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:18,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:18,406 INFO L93 Difference]: Finished difference Result 409 states and 532 transitions. [2022-07-22 18:38:18,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:38:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-22 18:38:18,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:18,408 INFO L225 Difference]: With dead ends: 409 [2022-07-22 18:38:18,408 INFO L226 Difference]: Without dead ends: 377 [2022-07-22 18:38:18,408 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 [2022-07-22 18:38:18,409 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 847 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:18,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 2082 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:18,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-07-22 18:38:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 134. [2022-07-22 18:38:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.25) internal successors, (165), 133 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 165 transitions. [2022-07-22 18:38:18,460 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 165 transitions. Word has length 67 [2022-07-22 18:38:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:18,460 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 165 transitions. [2022-07-22 18:38:18,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 165 transitions. [2022-07-22 18:38:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 18:38:18,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:18,461 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] [2022-07-22 18:38:18,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 18:38:18,461 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:18,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1308874992, now seen corresponding path program 1 times [2022-07-22 18:38:18,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:18,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003961505] [2022-07-22 18:38:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:18,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:18,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:18,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003961505] [2022-07-22 18:38:18,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003961505] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:18,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:18,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:38:18,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238632894] [2022-07-22 18:38:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:18,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:38:18,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:38:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:38:18,766 INFO L87 Difference]: Start difference. First operand 134 states and 165 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:19,961 INFO L93 Difference]: Finished difference Result 551 states and 767 transitions. [2022-07-22 18:38:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:38:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-22 18:38:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:19,964 INFO L225 Difference]: With dead ends: 551 [2022-07-22 18:38:19,964 INFO L226 Difference]: Without dead ends: 545 [2022-07-22 18:38:19,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:38:19,965 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1010 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:19,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2778 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-07-22 18:38:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 128. [2022-07-22 18:38:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.2519685039370079) internal successors, (159), 127 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 159 transitions. [2022-07-22 18:38:20,028 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 159 transitions. Word has length 69 [2022-07-22 18:38:20,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:20,028 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 159 transitions. [2022-07-22 18:38:20,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 159 transitions. [2022-07-22 18:38:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 18:38:20,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:20,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-22 18:38:20,030 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:20,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1208516883, now seen corresponding path program 1 times [2022-07-22 18:38:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:20,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033135260] [2022-07-22 18:38:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:20,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033135260] [2022-07-22 18:38:20,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033135260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:20,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:20,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:20,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645383091] [2022-07-22 18:38:20,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:20,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:20,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:20,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:20,088 INFO L87 Difference]: Start difference. First operand 128 states and 159 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:20,455 INFO L93 Difference]: Finished difference Result 560 states and 799 transitions. [2022-07-22 18:38:20,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 18:38:20,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-22 18:38:20,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:20,457 INFO L225 Difference]: With dead ends: 560 [2022-07-22 18:38:20,457 INFO L226 Difference]: Without dead ends: 506 [2022-07-22 18:38:20,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:38:20,458 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 895 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:20,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 950 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-07-22 18:38:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 180. [2022-07-22 18:38:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.318435754189944) internal successors, (236), 179 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 236 transitions. [2022-07-22 18:38:20,536 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 236 transitions. Word has length 92 [2022-07-22 18:38:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:20,536 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 236 transitions. [2022-07-22 18:38:20,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 236 transitions. [2022-07-22 18:38:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:20,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:20,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:20,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 18:38:20,538 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:20,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1324206254, now seen corresponding path program 1 times [2022-07-22 18:38:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:20,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167180948] [2022-07-22 18:38:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:20,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:20,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:20,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167180948] [2022-07-22 18:38:20,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167180948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:20,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:20,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:20,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599288964] [2022-07-22 18:38:20,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:20,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:20,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:20,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:20,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:20,597 INFO L87 Difference]: Start difference. First operand 180 states and 236 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:20,967 INFO L93 Difference]: Finished difference Result 658 states and 942 transitions. [2022-07-22 18:38:20,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:20,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:20,969 INFO L225 Difference]: With dead ends: 658 [2022-07-22 18:38:20,969 INFO L226 Difference]: Without dead ends: 552 [2022-07-22 18:38:20,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:20,970 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 647 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:20,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 673 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:20,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-07-22 18:38:21,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 284. [2022-07-22 18:38:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3816254416961131) internal successors, (391), 283 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 391 transitions. [2022-07-22 18:38:21,130 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 391 transitions. Word has length 94 [2022-07-22 18:38:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:21,130 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 391 transitions. [2022-07-22 18:38:21,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 391 transitions. [2022-07-22 18:38:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:21,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:21,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:21,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-22 18:38:21,132 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:21,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:21,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1309824789, now seen corresponding path program 1 times [2022-07-22 18:38:21,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:21,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363807887] [2022-07-22 18:38:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:21,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:21,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:21,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363807887] [2022-07-22 18:38:21,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363807887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:21,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:21,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:21,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606332214] [2022-07-22 18:38:21,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:21,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:21,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:21,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:21,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:21,236 INFO L87 Difference]: Start difference. First operand 284 states and 391 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:21,443 INFO L93 Difference]: Finished difference Result 496 states and 704 transitions. [2022-07-22 18:38:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:21,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:21,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:21,445 INFO L225 Difference]: With dead ends: 496 [2022-07-22 18:38:21,445 INFO L226 Difference]: Without dead ends: 286 [2022-07-22 18:38:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:38:21,446 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 294 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:21,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 455 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-07-22 18:38:21,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2022-07-22 18:38:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3745583038869258) internal successors, (389), 283 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 389 transitions. [2022-07-22 18:38:21,608 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 389 transitions. Word has length 94 [2022-07-22 18:38:21,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:21,608 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 389 transitions. [2022-07-22 18:38:21,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 389 transitions. [2022-07-22 18:38:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:21,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:21,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:21,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 18:38:21,610 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash 570084468, now seen corresponding path program 1 times [2022-07-22 18:38:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:21,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520078900] [2022-07-22 18:38:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:21,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:21,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520078900] [2022-07-22 18:38:21,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520078900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:21,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:21,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304181138] [2022-07-22 18:38:21,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:21,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:21,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:21,648 INFO L87 Difference]: Start difference. First operand 284 states and 389 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:21,961 INFO L93 Difference]: Finished difference Result 678 states and 965 transitions. [2022-07-22 18:38:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:21,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:21,963 INFO L225 Difference]: With dead ends: 678 [2022-07-22 18:38:21,963 INFO L226 Difference]: Without dead ends: 468 [2022-07-22 18:38:21,963 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 [2022-07-22 18:38:21,964 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:21,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:21,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-07-22 18:38:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 462. [2022-07-22 18:38:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 461 states have (on average 1.3882863340563991) internal successors, (640), 461 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 640 transitions. [2022-07-22 18:38:22,244 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 640 transitions. Word has length 94 [2022-07-22 18:38:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:22,245 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 640 transitions. [2022-07-22 18:38:22,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 640 transitions. [2022-07-22 18:38:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:22,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:22,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:22,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 18:38:22,246 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:22,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash -337360546, now seen corresponding path program 1 times [2022-07-22 18:38:22,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:22,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603846583] [2022-07-22 18:38:22,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:22,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:22,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:22,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603846583] [2022-07-22 18:38:22,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603846583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:22,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:22,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428406781] [2022-07-22 18:38:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:22,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:22,303 INFO L87 Difference]: Start difference. First operand 462 states and 640 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:23,059 INFO L93 Difference]: Finished difference Result 1341 states and 1908 transitions. [2022-07-22 18:38:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:23,062 INFO L225 Difference]: With dead ends: 1341 [2022-07-22 18:38:23,062 INFO L226 Difference]: Without dead ends: 1146 [2022-07-22 18:38:23,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:23,063 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 615 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:23,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 683 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:23,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-07-22 18:38:23,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 752. [2022-07-22 18:38:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.4087882822902795) internal successors, (1058), 751 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:23,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1058 transitions. [2022-07-22 18:38:23,546 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1058 transitions. Word has length 94 [2022-07-22 18:38:23,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:23,547 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 1058 transitions. [2022-07-22 18:38:23,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:23,547 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1058 transitions. [2022-07-22 18:38:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:23,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:23,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:23,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 18:38:23,548 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:23,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1456780136, now seen corresponding path program 1 times [2022-07-22 18:38:23,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:23,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274973406] [2022-07-22 18:38:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:23,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:23,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274973406] [2022-07-22 18:38:23,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274973406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:23,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:23,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:23,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914084918] [2022-07-22 18:38:23,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:23,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:23,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:23,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:23,612 INFO L87 Difference]: Start difference. First operand 752 states and 1058 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:24,547 INFO L93 Difference]: Finished difference Result 1534 states and 2187 transitions. [2022-07-22 18:38:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:24,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:24,550 INFO L225 Difference]: With dead ends: 1534 [2022-07-22 18:38:24,551 INFO L226 Difference]: Without dead ends: 1339 [2022-07-22 18:38:24,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:24,552 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 584 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:24,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 734 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-07-22 18:38:25,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 945. [2022-07-22 18:38:25,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 944 states have (on average 1.416313559322034) internal successors, (1337), 944 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:25,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1337 transitions. [2022-07-22 18:38:25,197 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1337 transitions. Word has length 94 [2022-07-22 18:38:25,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:25,197 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1337 transitions. [2022-07-22 18:38:25,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1337 transitions. [2022-07-22 18:38:25,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-22 18:38:25,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:25,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:25,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 18:38:25,199 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:25,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1890695249, now seen corresponding path program 1 times [2022-07-22 18:38:25,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:25,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632819512] [2022-07-22 18:38:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:25,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:25,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:25,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632819512] [2022-07-22 18:38:25,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632819512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:25,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:25,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:25,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189593980] [2022-07-22 18:38:25,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:25,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:25,241 INFO L87 Difference]: Start difference. First operand 945 states and 1337 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:26,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:26,460 INFO L93 Difference]: Finished difference Result 2615 states and 3727 transitions. [2022-07-22 18:38:26,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:26,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-22 18:38:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:26,465 INFO L225 Difference]: With dead ends: 2615 [2022-07-22 18:38:26,465 INFO L226 Difference]: Without dead ends: 1744 [2022-07-22 18:38:26,466 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 [2022-07-22 18:38:26,466 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 72 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 333 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 [2022-07-22 18:38:26,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:26,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-07-22 18:38:27,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1670. [2022-07-22 18:38:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1669 states have (on average 1.4140203714799282) internal successors, (2360), 1669 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2360 transitions. [2022-07-22 18:38:27,508 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2360 transitions. Word has length 95 [2022-07-22 18:38:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:27,509 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 2360 transitions. [2022-07-22 18:38:27,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2360 transitions. [2022-07-22 18:38:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:38:27,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:27,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:27,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-22 18:38:27,510 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1608306199, now seen corresponding path program 1 times [2022-07-22 18:38:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750935440] [2022-07-22 18:38:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:27,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:27,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750935440] [2022-07-22 18:38:27,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750935440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:27,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:27,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:27,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664303499] [2022-07-22 18:38:27,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:27,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:27,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:27,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:27,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:27,563 INFO L87 Difference]: Start difference. First operand 1670 states and 2360 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:29,825 INFO L93 Difference]: Finished difference Result 4718 states and 6670 transitions. [2022-07-22 18:38:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-07-22 18:38:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:29,832 INFO L225 Difference]: With dead ends: 4718 [2022-07-22 18:38:29,832 INFO L226 Difference]: Without dead ends: 3122 [2022-07-22 18:38:29,834 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 [2022-07-22 18:38:29,834 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 65 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 333 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 [2022-07-22 18:38:29,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-07-22 18:38:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2976. [2022-07-22 18:38:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 1.4023529411764706) internal successors, (4172), 2975 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4172 transitions. [2022-07-22 18:38:31,848 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4172 transitions. Word has length 96 [2022-07-22 18:38:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:31,849 INFO L495 AbstractCegarLoop]: Abstraction has 2976 states and 4172 transitions. [2022-07-22 18:38:31,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4172 transitions. [2022-07-22 18:38:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 18:38:31,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:31,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:31,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 18:38:31,850 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:31,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:31,851 INFO L85 PathProgramCache]: Analyzing trace with hash -916899152, now seen corresponding path program 1 times [2022-07-22 18:38:31,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:31,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182900496] [2022-07-22 18:38:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:31,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:31,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:31,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182900496] [2022-07-22 18:38:31,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182900496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:31,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:31,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613423547] [2022-07-22 18:38:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:31,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:31,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:31,912 INFO L87 Difference]: Start difference. First operand 2976 states and 4172 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:35,713 INFO L93 Difference]: Finished difference Result 8492 states and 11854 transitions. [2022-07-22 18:38:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:35,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-07-22 18:38:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:35,726 INFO L225 Difference]: With dead ends: 8492 [2022-07-22 18:38:35,726 INFO L226 Difference]: Without dead ends: 5590 [2022-07-22 18:38:35,729 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 [2022-07-22 18:38:35,729 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 55 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 333 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 [2022-07-22 18:38:35,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-07-22 18:38:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5300. [2022-07-22 18:38:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 5299 states have (on average 1.382902434421589) internal successors, (7328), 5299 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:39,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 7328 transitions. [2022-07-22 18:38:39,287 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 7328 transitions. Word has length 97 [2022-07-22 18:38:39,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:39,288 INFO L495 AbstractCegarLoop]: Abstraction has 5300 states and 7328 transitions. [2022-07-22 18:38:39,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 7328 transitions. [2022-07-22 18:38:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:38:39,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:39,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:39,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 18:38:39,289 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:39,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2063595932, now seen corresponding path program 1 times [2022-07-22 18:38:39,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:39,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42981226] [2022-07-22 18:38:39,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:39,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:39,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:39,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42981226] [2022-07-22 18:38:39,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42981226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:39,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:39,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:39,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115755093] [2022-07-22 18:38:39,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:39,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:39,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:39,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:39,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:39,366 INFO L87 Difference]: Start difference. First operand 5300 states and 7328 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:45,960 INFO L93 Difference]: Finished difference Result 9356 states and 12848 transitions. [2022-07-22 18:38:45,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 18:38:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-22 18:38:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:45,985 INFO L225 Difference]: With dead ends: 9356 [2022-07-22 18:38:45,986 INFO L226 Difference]: Without dead ends: 9354 [2022-07-22 18:38:45,987 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 [2022-07-22 18:38:45,988 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 257 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 840 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 [2022-07-22 18:38:45,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 840 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9354 states. [2022-07-22 18:38:49,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9354 to 5492. [2022-07-22 18:38:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 1.3622291021671826) internal successors, (7480), 5491 states have internal predecessors, (7480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 7480 transitions. [2022-07-22 18:38:49,760 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 7480 transitions. Word has length 98 [2022-07-22 18:38:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:49,761 INFO L495 AbstractCegarLoop]: Abstraction has 5492 states and 7480 transitions. [2022-07-22 18:38:49,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 7480 transitions. [2022-07-22 18:38:49,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:38:49,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:49,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:49,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-22 18:38:49,762 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:49,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:49,763 INFO L85 PathProgramCache]: Analyzing trace with hash -777753176, now seen corresponding path program 1 times [2022-07-22 18:38:49,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:49,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883571922] [2022-07-22 18:38:49,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:49,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:49,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:49,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883571922] [2022-07-22 18:38:49,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883571922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:49,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:49,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:49,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731946084] [2022-07-22 18:38:49,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:49,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:49,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:49,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:49,823 INFO L87 Difference]: Start difference. First operand 5492 states and 7480 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:56,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:56,195 INFO L93 Difference]: Finished difference Result 10334 states and 14141 transitions. [2022-07-22 18:38:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:56,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-22 18:38:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:56,210 INFO L225 Difference]: With dead ends: 10334 [2022-07-22 18:38:56,210 INFO L226 Difference]: Without dead ends: 9124 [2022-07-22 18:38:56,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:56,213 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 643 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:56,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 740 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9124 states. [2022-07-22 18:39:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9124 to 6700. [2022-07-22 18:39:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 6699 states have (on average 1.3625914315569487) internal successors, (9128), 6699 states have internal predecessors, (9128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 9128 transitions. [2022-07-22 18:39:00,926 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 9128 transitions. Word has length 98 [2022-07-22 18:39:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:00,927 INFO L495 AbstractCegarLoop]: Abstraction has 6700 states and 9128 transitions. [2022-07-22 18:39:00,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 9128 transitions. [2022-07-22 18:39:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:39:00,928 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:00,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:00,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-22 18:39:00,929 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:00,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:00,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1173003609, now seen corresponding path program 1 times [2022-07-22 18:39:00,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:00,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556303219] [2022-07-22 18:39:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:00,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:00,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:00,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556303219] [2022-07-22 18:39:00,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556303219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:39:00,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:39:00,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:39:00,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353564101] [2022-07-22 18:39:00,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:39:00,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:39:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:00,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:39:00,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:00,966 INFO L87 Difference]: Start difference. First operand 6700 states and 9128 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:08,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:08,745 INFO L93 Difference]: Finished difference Result 17400 states and 23654 transitions. [2022-07-22 18:39:08,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:39:08,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-07-22 18:39:08,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:08,764 INFO L225 Difference]: With dead ends: 17400 [2022-07-22 18:39:08,764 INFO L226 Difference]: Without dead ends: 10774 [2022-07-22 18:39:08,771 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 [2022-07-22 18:39:08,772 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 76 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 336 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 [2022-07-22 18:39:08,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 336 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2022-07-22 18:39:16,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 10068. [2022-07-22 18:39:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10068 states, 10067 states have (on average 1.3457832522101918) internal successors, (13548), 10067 states have internal predecessors, (13548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10068 states to 10068 states and 13548 transitions. [2022-07-22 18:39:16,136 INFO L78 Accepts]: Start accepts. Automaton has 10068 states and 13548 transitions. Word has length 99 [2022-07-22 18:39:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:16,137 INFO L495 AbstractCegarLoop]: Abstraction has 10068 states and 13548 transitions. [2022-07-22 18:39:16,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 10068 states and 13548 transitions. [2022-07-22 18:39:16,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-22 18:39:16,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:16,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:16,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-22 18:39:16,140 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:16,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1824588018, now seen corresponding path program 1 times [2022-07-22 18:39:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:16,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409464011] [2022-07-22 18:39:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:16,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:16,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409464011] [2022-07-22 18:39:16,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409464011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:39:16,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:39:16,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:39:16,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394228624] [2022-07-22 18:39:16,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:39:16,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:39:16,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:39:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:16,185 INFO L87 Difference]: Start difference. First operand 10068 states and 13548 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:23,550 INFO L93 Difference]: Finished difference Result 20064 states and 27018 transitions. [2022-07-22 18:39:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:39:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-07-22 18:39:23,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:23,566 INFO L225 Difference]: With dead ends: 20064 [2022-07-22 18:39:23,567 INFO L226 Difference]: Without dead ends: 10070 [2022-07-22 18:39:23,577 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 [2022-07-22 18:39:23,578 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 69 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:39:23,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 309 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10070 states. [2022-07-22 18:39:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10070 to 10068. [2022-07-22 18:39:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10068 states, 10067 states have (on average 1.3283003874043906) internal successors, (13372), 10067 states have internal predecessors, (13372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10068 states to 10068 states and 13372 transitions. [2022-07-22 18:39:31,098 INFO L78 Accepts]: Start accepts. Automaton has 10068 states and 13372 transitions. Word has length 125 [2022-07-22 18:39:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:31,098 INFO L495 AbstractCegarLoop]: Abstraction has 10068 states and 13372 transitions. [2022-07-22 18:39:31,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:31,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10068 states and 13372 transitions. [2022-07-22 18:39:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-22 18:39:31,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:31,100 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:31,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-22 18:39:31,100 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:31,101 INFO L85 PathProgramCache]: Analyzing trace with hash -277387224, now seen corresponding path program 1 times [2022-07-22 18:39:31,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:31,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586051251] [2022-07-22 18:39:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:31,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:31,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586051251] [2022-07-22 18:39:31,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586051251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 18:39:31,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004811981] [2022-07-22 18:39:31,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:31,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 18:39:31,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:39:31,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 18:39:31,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 18:39:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:31,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 18:39:31,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 18:39:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:32,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 18:39:33,430 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:33,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004811981] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 18:39:33,430 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 18:39:33,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-22 18:39:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349955023] [2022-07-22 18:39:33,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 18:39:33,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 18:39:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:33,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 18:39:33,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:39:33,433 INFO L87 Difference]: Start difference. First operand 10068 states and 13372 transitions. Second operand has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 26 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)