./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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.6.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 52cbb0c1391c9e840599beece58e1ecbc8d18028ef540ea98f759da7158f4609 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:37:25,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:37:25,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:37:25,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:37:25,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:37:25,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:37:25,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:37:25,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:37:25,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:37:25,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:37:25,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:37:25,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:37:25,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:37:25,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:37:25,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:37:26,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:37:26,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:37:26,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:37:26,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:37:26,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:37:26,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:37:26,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:37:26,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:37:26,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:37:26,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:37:26,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:37:26,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:37:26,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:37:26,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:37:26,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:37:26,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:37:26,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:37:26,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:37:26,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:37:26,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:37:26,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:37:26,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:37:26,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:37:26,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:37:26,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:37:26,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:37:26,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:37:26,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:37:26,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:37:26,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:37:26,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:37:26,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:37:26,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:37:26,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:37:26,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:37:26,054 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:37:26,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:37:26,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:37:26,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:37:26,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:37:26,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:37:26,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:37:26,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:37:26,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:37:26,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:37:26,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:37:26,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52cbb0c1391c9e840599beece58e1ecbc8d18028ef540ea98f759da7158f4609 [2021-12-15 11:37:26,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:37:26,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:37:26,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:37:26,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:37:26,294 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:37:26,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-15 11:37:26,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8653358da/6e724d262f6840dfbda99a36929027dc/FLAGccdd33fc3 [2021-12-15 11:37:26,870 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:37:26,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-15 11:37:26,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8653358da/6e724d262f6840dfbda99a36929027dc/FLAGccdd33fc3 [2021-12-15 11:37:27,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8653358da/6e724d262f6840dfbda99a36929027dc [2021-12-15 11:37:27,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:37:27,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:37:27,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:37:27,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:37:27,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:37:27,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:37:27" (1/1) ... [2021-12-15 11:37:27,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e0b336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:27, skipping insertion in model container [2021-12-15 11:37:27,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:37:27" (1/1) ... [2021-12-15 11:37:27,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:37:27,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:37:27,785 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13531,13544] [2021-12-15 11:37:27,813 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18011,18024] [2021-12-15 11:37:27,834 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19303,19316] [2021-12-15 11:37:27,842 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20061,20074] [2021-12-15 11:37:27,853 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21681,21694] [2021-12-15 11:37:27,860 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22439,22452] [2021-12-15 11:37:27,874 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23525,23538] [2021-12-15 11:37:27,883 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26064,26077] [2021-12-15 11:37:27,886 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26825,26838] [2021-12-15 11:37:27,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27914,27927] [2021-12-15 11:37:27,895 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29919,29932] [2021-12-15 11:37:27,905 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33842,33855] [2021-12-15 11:37:27,915 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34603,34616] [2021-12-15 11:37:27,919 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35696,35709] [2021-12-15 11:37:27,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37705,37718] [2021-12-15 11:37:27,940 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41308,41321] [2021-12-15 11:37:27,964 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-15 11:37:27,967 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48946,48959] [2021-12-15 11:37:27,970 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50035,50048] [2021-12-15 11:37:27,980 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52040,52053] [2021-12-15 11:37:27,989 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55429,55442] [2021-12-15 11:37:28,008 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61126,61139] [2021-12-15 11:37:28,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:37:28,228 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:37:28,297 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13531,13544] [2021-12-15 11:37:28,303 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18011,18024] [2021-12-15 11:37:28,306 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19303,19316] [2021-12-15 11:37:28,324 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20061,20074] [2021-12-15 11:37:28,328 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21681,21694] [2021-12-15 11:37:28,330 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22439,22452] [2021-12-15 11:37:28,332 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23525,23538] [2021-12-15 11:37:28,337 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26064,26077] [2021-12-15 11:37:28,351 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26825,26838] [2021-12-15 11:37:28,354 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27914,27927] [2021-12-15 11:37:28,358 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29919,29932] [2021-12-15 11:37:28,366 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33842,33855] [2021-12-15 11:37:28,369 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34603,34616] [2021-12-15 11:37:28,372 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35696,35709] [2021-12-15 11:37:28,376 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37705,37718] [2021-12-15 11:37:28,384 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41308,41321] [2021-12-15 11:37:28,399 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-15 11:37:28,401 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48946,48959] [2021-12-15 11:37:28,404 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50035,50048] [2021-12-15 11:37:28,409 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52040,52053] [2021-12-15 11:37:28,418 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55429,55442] [2021-12-15 11:37:28,427 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.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61126,61139] [2021-12-15 11:37:28,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:37:28,572 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:37:28,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28 WrapperNode [2021-12-15 11:37:28,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:37:28,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:37:28,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:37:28,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:37:28,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,717 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6322 [2021-12-15 11:37:28,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:37:28,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:37:28,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:37:28,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:37:28,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:37:28,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:37:28,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:37:28,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:37:28,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (1/1) ... [2021-12-15 11:37:28,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:37:28,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:37:28,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:37:28,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:37:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:37:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:37:28,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:37:28,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:37:29,198 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:37:29,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:37:31,029 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:37:31,038 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:37:31,039 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:37:31,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:37:31 BoogieIcfgContainer [2021-12-15 11:37:31,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:37:31,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:37:31,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:37:31,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:37:31,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:37:27" (1/3) ... [2021-12-15 11:37:31,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a31d8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:37:31, skipping insertion in model container [2021-12-15 11:37:31,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:37:28" (2/3) ... [2021-12-15 11:37:31,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a31d8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:37:31, skipping insertion in model container [2021-12-15 11:37:31,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:37:31" (3/3) ... [2021-12-15 11:37:31,046 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-15 11:37:31,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:37:31,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-15 11:37:31,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:37:31,085 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:37:31,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-15 11:37:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 11:37:31,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:31,130 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:31,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:31,134 INFO L85 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2021-12-15 11:37:31,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:31,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110655422] [2021-12-15 11:37:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:31,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:31,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:31,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110655422] [2021-12-15 11:37:31,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110655422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:31,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:31,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:31,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350713900] [2021-12-15 11:37:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:31,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:31,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:31,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:31,419 INFO L87 Difference]: Start difference. First operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:32,073 INFO L93 Difference]: Finished difference Result 1702 states and 2998 transitions. [2021-12-15 11:37:32,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:32,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-12-15 11:37:32,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:32,085 INFO L225 Difference]: With dead ends: 1702 [2021-12-15 11:37:32,086 INFO L226 Difference]: Without dead ends: 913 [2021-12-15 11:37:32,089 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:32,091 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 4598 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:32,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4598 Valid, 1090 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:37:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-15 11:37:32,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2021-12-15 11:37:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3052749719416386) internal successors, (1163), 912 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1163 transitions. [2021-12-15 11:37:32,139 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1163 transitions. Word has length 85 [2021-12-15 11:37:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:32,140 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1163 transitions. [2021-12-15 11:37:32,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1163 transitions. [2021-12-15 11:37:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 11:37:32,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:32,142 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:32,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:37:32,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:32,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1659261908, now seen corresponding path program 1 times [2021-12-15 11:37:32,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:32,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099075926] [2021-12-15 11:37:32,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:32,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:32,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:32,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099075926] [2021-12-15 11:37:32,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099075926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:32,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:32,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:32,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285828683] [2021-12-15 11:37:32,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:32,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:32,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:32,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:32,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:32,237 INFO L87 Difference]: Start difference. First operand 913 states and 1163 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:32,620 INFO L93 Difference]: Finished difference Result 1482 states and 1951 transitions. [2021-12-15 11:37:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:32,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-15 11:37:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:32,623 INFO L225 Difference]: With dead ends: 1482 [2021-12-15 11:37:32,623 INFO L226 Difference]: Without dead ends: 785 [2021-12-15 11:37:32,624 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:32,625 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 2945 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:32,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2945 Valid, 587 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:37:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2021-12-15 11:37:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2021-12-15 11:37:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 763 states have (on average 1.3342070773263435) internal successors, (1018), 784 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1018 transitions. [2021-12-15 11:37:32,642 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1018 transitions. Word has length 86 [2021-12-15 11:37:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:32,642 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 1018 transitions. [2021-12-15 11:37:32,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1018 transitions. [2021-12-15 11:37:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 11:37:32,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:32,644 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:32,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 11:37:32,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:32,645 INFO L85 PathProgramCache]: Analyzing trace with hash -354616102, now seen corresponding path program 1 times [2021-12-15 11:37:32,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:32,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234124771] [2021-12-15 11:37:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:32,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:32,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:32,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234124771] [2021-12-15 11:37:32,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234124771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:32,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:32,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:32,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126398432] [2021-12-15 11:37:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:32,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:32,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:32,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:32,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:32,742 INFO L87 Difference]: Start difference. First operand 785 states and 1018 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:33,011 INFO L93 Difference]: Finished difference Result 1354 states and 1805 transitions. [2021-12-15 11:37:33,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:33,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2021-12-15 11:37:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:33,013 INFO L225 Difference]: With dead ends: 1354 [2021-12-15 11:37:33,013 INFO L226 Difference]: Without dead ends: 700 [2021-12-15 11:37:33,014 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:33,015 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 2714 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:33,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2714 Valid, 529 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 11:37:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-12-15 11:37:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2021-12-15 11:37:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 678 states have (on average 1.3628318584070795) internal successors, (924), 699 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 924 transitions. [2021-12-15 11:37:33,047 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 924 transitions. Word has length 87 [2021-12-15 11:37:33,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:33,048 INFO L470 AbstractCegarLoop]: Abstraction has 700 states and 924 transitions. [2021-12-15 11:37:33,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 924 transitions. [2021-12-15 11:37:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-15 11:37:33,050 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:33,050 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:33,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 11:37:33,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:33,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2037300131, now seen corresponding path program 1 times [2021-12-15 11:37:33,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:33,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554107535] [2021-12-15 11:37:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:33,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:33,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554107535] [2021-12-15 11:37:33,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554107535] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:33,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:33,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:33,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256755506] [2021-12-15 11:37:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:33,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:33,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:33,134 INFO L87 Difference]: Start difference. First operand 700 states and 924 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:33,557 INFO L93 Difference]: Finished difference Result 1269 states and 1710 transitions. [2021-12-15 11:37:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:33,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-12-15 11:37:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:33,561 INFO L225 Difference]: With dead ends: 1269 [2021-12-15 11:37:33,561 INFO L226 Difference]: Without dead ends: 680 [2021-12-15 11:37:33,562 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:33,562 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 2493 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:33,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2493 Valid, 446 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 11:37:33,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-12-15 11:37:33,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2021-12-15 11:37:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 658 states have (on average 1.3662613981762919) internal successors, (899), 679 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 899 transitions. [2021-12-15 11:37:33,613 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 899 transitions. Word has length 88 [2021-12-15 11:37:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:33,613 INFO L470 AbstractCegarLoop]: Abstraction has 680 states and 899 transitions. [2021-12-15 11:37:33,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 899 transitions. [2021-12-15 11:37:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-15 11:37:33,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:33,621 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:33,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 11:37:33,622 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:33,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:33,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1647430021, now seen corresponding path program 1 times [2021-12-15 11:37:33,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:33,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824712252] [2021-12-15 11:37:33,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:33,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:33,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:33,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:33,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824712252] [2021-12-15 11:37:33,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824712252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:33,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:33,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:33,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689852686] [2021-12-15 11:37:33,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:33,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:33,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:33,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:33,719 INFO L87 Difference]: Start difference. First operand 680 states and 899 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:34,045 INFO L93 Difference]: Finished difference Result 1249 states and 1684 transitions. [2021-12-15 11:37:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:34,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2021-12-15 11:37:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:34,048 INFO L225 Difference]: With dead ends: 1249 [2021-12-15 11:37:34,048 INFO L226 Difference]: Without dead ends: 649 [2021-12-15 11:37:34,049 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:34,049 INFO L933 BasicCegarLoop]: 485 mSDtfsCounter, 2523 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:34,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2523 Valid, 497 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:37:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-12-15 11:37:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2021-12-15 11:37:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 627 states have (on average 1.379585326953748) internal successors, (865), 648 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 865 transitions. [2021-12-15 11:37:34,065 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 865 transitions. Word has length 89 [2021-12-15 11:37:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:34,065 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 865 transitions. [2021-12-15 11:37:34,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 865 transitions. [2021-12-15 11:37:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-15 11:37:34,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:34,067 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:34,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 11:37:34,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1235398548, now seen corresponding path program 1 times [2021-12-15 11:37:34,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:34,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972623157] [2021-12-15 11:37:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:34,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:34,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:34,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972623157] [2021-12-15 11:37:34,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972623157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:34,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:34,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:34,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428378283] [2021-12-15 11:37:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:34,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:34,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:34,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:34,116 INFO L87 Difference]: Start difference. First operand 649 states and 865 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:34,443 INFO L93 Difference]: Finished difference Result 1218 states and 1649 transitions. [2021-12-15 11:37:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:34,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-12-15 11:37:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:34,446 INFO L225 Difference]: With dead ends: 1218 [2021-12-15 11:37:34,446 INFO L226 Difference]: Without dead ends: 635 [2021-12-15 11:37:34,447 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:34,447 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 2458 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:34,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2458 Valid, 491 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:37:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-12-15 11:37:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2021-12-15 11:37:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3849918433931485) internal successors, (849), 634 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 849 transitions. [2021-12-15 11:37:34,467 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 849 transitions. Word has length 90 [2021-12-15 11:37:34,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:34,467 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 849 transitions. [2021-12-15 11:37:34,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,468 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 849 transitions. [2021-12-15 11:37:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-15 11:37:34,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:34,469 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:34,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 11:37:34,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:34,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2021-12-15 11:37:34,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:34,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832534527] [2021-12-15 11:37:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:34,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:34,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:34,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832534527] [2021-12-15 11:37:34,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832534527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:34,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:34,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 11:37:34,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026994146] [2021-12-15 11:37:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:34,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 11:37:34,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 11:37:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-15 11:37:34,613 INFO L87 Difference]: Start difference. First operand 635 states and 849 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:35,344 INFO L93 Difference]: Finished difference Result 1197 states and 1558 transitions. [2021-12-15 11:37:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 11:37:35,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-15 11:37:35,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:35,347 INFO L225 Difference]: With dead ends: 1197 [2021-12-15 11:37:35,348 INFO L226 Difference]: Without dead ends: 852 [2021-12-15 11:37:35,348 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:35,349 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 4357 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:35,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4357 Valid, 1371 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:37:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-12-15 11:37:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 635. [2021-12-15 11:37:35,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3833605220228384) internal successors, (848), 634 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 848 transitions. [2021-12-15 11:37:35,371 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 848 transitions. Word has length 91 [2021-12-15 11:37:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:35,373 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 848 transitions. [2021-12-15 11:37:35,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,373 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 848 transitions. [2021-12-15 11:37:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-15 11:37:35,374 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:35,375 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:35,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 11:37:35,375 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:35,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2021-12-15 11:37:35,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:35,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680863699] [2021-12-15 11:37:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:35,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:35,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:35,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680863699] [2021-12-15 11:37:35,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680863699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:35,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:35,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:35,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386916497] [2021-12-15 11:37:35,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:35,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:35,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:35,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:35,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:35,514 INFO L87 Difference]: Start difference. First operand 635 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:36,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:36,612 INFO L93 Difference]: Finished difference Result 1325 states and 1810 transitions. [2021-12-15 11:37:36,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:36,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-15 11:37:36,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:36,616 INFO L225 Difference]: With dead ends: 1325 [2021-12-15 11:37:36,616 INFO L226 Difference]: Without dead ends: 1133 [2021-12-15 11:37:36,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:36,617 INFO L933 BasicCegarLoop]: 726 mSDtfsCounter, 4085 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:36,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4085 Valid, 3000 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2021-12-15 11:37:36,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 635. [2021-12-15 11:37:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3817292006525286) internal successors, (847), 634 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 847 transitions. [2021-12-15 11:37:36,642 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 847 transitions. Word has length 91 [2021-12-15 11:37:36,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:36,643 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 847 transitions. [2021-12-15 11:37:36,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 847 transitions. [2021-12-15 11:37:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-15 11:37:36,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:36,644 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:36,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 11:37:36,644 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2021-12-15 11:37:36,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142215925] [2021-12-15 11:37:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:36,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:36,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:36,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142215925] [2021-12-15 11:37:36,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142215925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:36,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:36,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:36,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886620341] [2021-12-15 11:37:36,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:36,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:36,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:36,747 INFO L87 Difference]: Start difference. First operand 635 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:37,763 INFO L93 Difference]: Finished difference Result 1252 states and 1713 transitions. [2021-12-15 11:37:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:37,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-15 11:37:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:37,767 INFO L225 Difference]: With dead ends: 1252 [2021-12-15 11:37:37,767 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:37:37,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:37,769 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 4103 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4103 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:37,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4103 Valid, 2596 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:37:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 635. [2021-12-15 11:37:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3800978792822185) internal successors, (846), 634 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 846 transitions. [2021-12-15 11:37:37,792 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 846 transitions. Word has length 91 [2021-12-15 11:37:37,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:37,793 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 846 transitions. [2021-12-15 11:37:37,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:37,793 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 846 transitions. [2021-12-15 11:37:37,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:37,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:37,794 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:37,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 11:37:37,795 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:37,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2021-12-15 11:37:37,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:37,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422856997] [2021-12-15 11:37:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:37,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:37,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:37,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422856997] [2021-12-15 11:37:37,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422856997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:37,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:37,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:37:37,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033419860] [2021-12-15 11:37:37,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:37,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:37:37,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:37:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:37:37,952 INFO L87 Difference]: Start difference. First operand 635 states and 846 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:39,760 INFO L93 Difference]: Finished difference Result 1543 states and 2111 transitions. [2021-12-15 11:37:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-15 11:37:39,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:39,764 INFO L225 Difference]: With dead ends: 1543 [2021-12-15 11:37:39,764 INFO L226 Difference]: Without dead ends: 1321 [2021-12-15 11:37:39,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2021-12-15 11:37:39,765 INFO L933 BasicCegarLoop]: 907 mSDtfsCounter, 3651 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:39,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3651 Valid, 4894 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3948 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:37:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2021-12-15 11:37:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 635. [2021-12-15 11:37:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3784665579119086) internal successors, (845), 634 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 845 transitions. [2021-12-15 11:37:39,832 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 845 transitions. Word has length 93 [2021-12-15 11:37:39,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:39,833 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 845 transitions. [2021-12-15 11:37:39,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:39,833 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 845 transitions. [2021-12-15 11:37:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:39,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:39,835 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:39,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 11:37:39,835 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2021-12-15 11:37:39,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:39,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867580719] [2021-12-15 11:37:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:39,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:39,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:39,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867580719] [2021-12-15 11:37:39,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867580719] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:39,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:39,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:39,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835455682] [2021-12-15 11:37:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:39,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:39,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:39,947 INFO L87 Difference]: Start difference. First operand 635 states and 845 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:41,084 INFO L93 Difference]: Finished difference Result 1220 states and 1657 transitions. [2021-12-15 11:37:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:41,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:41,088 INFO L225 Difference]: With dead ends: 1220 [2021-12-15 11:37:41,088 INFO L226 Difference]: Without dead ends: 1121 [2021-12-15 11:37:41,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:41,089 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 4762 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:41,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4762 Valid, 2415 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:41,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-12-15 11:37:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 635. [2021-12-15 11:37:41,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3768352365415988) internal successors, (844), 634 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 844 transitions. [2021-12-15 11:37:41,138 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 844 transitions. Word has length 93 [2021-12-15 11:37:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:41,138 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 844 transitions. [2021-12-15 11:37:41,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 844 transitions. [2021-12-15 11:37:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:41,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:41,140 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:41,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 11:37:41,140 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2021-12-15 11:37:41,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:41,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492108641] [2021-12-15 11:37:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:41,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:41,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:41,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492108641] [2021-12-15 11:37:41,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492108641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:41,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:41,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:41,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806832609] [2021-12-15 11:37:41,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:41,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:41,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:41,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:41,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:41,237 INFO L87 Difference]: Start difference. First operand 635 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:42,384 INFO L93 Difference]: Finished difference Result 1267 states and 1722 transitions. [2021-12-15 11:37:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:42,388 INFO L225 Difference]: With dead ends: 1267 [2021-12-15 11:37:42,388 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:37:42,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:42,389 INFO L933 BasicCegarLoop]: 795 mSDtfsCounter, 2971 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 3628 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:42,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2971 Valid, 3628 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:37:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:37:42,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 635. [2021-12-15 11:37:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3752039151712887) internal successors, (843), 634 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 843 transitions. [2021-12-15 11:37:42,415 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 843 transitions. Word has length 93 [2021-12-15 11:37:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:42,416 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 843 transitions. [2021-12-15 11:37:42,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 843 transitions. [2021-12-15 11:37:42,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:42,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:42,417 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:42,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 11:37:42,417 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:42,418 INFO L85 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2021-12-15 11:37:42,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:42,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253504787] [2021-12-15 11:37:42,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:42,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:42,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:42,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253504787] [2021-12-15 11:37:42,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253504787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:42,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:42,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:42,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151297955] [2021-12-15 11:37:42,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:42,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:42,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:42,529 INFO L87 Difference]: Start difference. First operand 635 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:43,604 INFO L93 Difference]: Finished difference Result 1220 states and 1656 transitions. [2021-12-15 11:37:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:43,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:43,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:43,608 INFO L225 Difference]: With dead ends: 1220 [2021-12-15 11:37:43,608 INFO L226 Difference]: Without dead ends: 1121 [2021-12-15 11:37:43,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:43,610 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 4517 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4517 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:43,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4517 Valid, 2592 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-12-15 11:37:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 635. [2021-12-15 11:37:43,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3735725938009788) internal successors, (842), 634 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 842 transitions. [2021-12-15 11:37:43,644 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 842 transitions. Word has length 93 [2021-12-15 11:37:43,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:43,645 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 842 transitions. [2021-12-15 11:37:43,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 842 transitions. [2021-12-15 11:37:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:43,646 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:43,646 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:43,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 11:37:43,647 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:43,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2021-12-15 11:37:43,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:43,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729368786] [2021-12-15 11:37:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:43,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:43,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:43,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:43,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729368786] [2021-12-15 11:37:43,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729368786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:43,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:43,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:43,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171791632] [2021-12-15 11:37:43,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:43,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:43,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:43,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:43,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:43,814 INFO L87 Difference]: Start difference. First operand 635 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:45,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:45,102 INFO L93 Difference]: Finished difference Result 1267 states and 1722 transitions. [2021-12-15 11:37:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:45,106 INFO L225 Difference]: With dead ends: 1267 [2021-12-15 11:37:45,106 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:37:45,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:45,107 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 2934 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2934 SdHoareTripleChecker+Valid, 3794 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:45,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2934 Valid, 3794 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:37:45,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:37:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 635. [2021-12-15 11:37:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3719412724306688) internal successors, (841), 634 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 841 transitions. [2021-12-15 11:37:45,139 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 841 transitions. Word has length 93 [2021-12-15 11:37:45,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:45,140 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 841 transitions. [2021-12-15 11:37:45,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:45,140 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 841 transitions. [2021-12-15 11:37:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:45,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:45,141 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:45,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 11:37:45,142 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:45,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2021-12-15 11:37:45,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:45,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782457661] [2021-12-15 11:37:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:45,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:45,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:45,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782457661] [2021-12-15 11:37:45,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782457661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:45,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:45,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:45,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148150843] [2021-12-15 11:37:45,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:45,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:45,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:45,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:45,239 INFO L87 Difference]: Start difference. First operand 635 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:46,295 INFO L93 Difference]: Finished difference Result 1214 states and 1648 transitions. [2021-12-15 11:37:46,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:46,298 INFO L225 Difference]: With dead ends: 1214 [2021-12-15 11:37:46,299 INFO L226 Difference]: Without dead ends: 1121 [2021-12-15 11:37:46,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:46,302 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 4295 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:46,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4295 Valid, 2758 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:46,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-12-15 11:37:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 635. [2021-12-15 11:37:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.370309951060359) internal successors, (840), 634 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 840 transitions. [2021-12-15 11:37:46,349 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 840 transitions. Word has length 93 [2021-12-15 11:37:46,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:46,349 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 840 transitions. [2021-12-15 11:37:46,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:46,349 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 840 transitions. [2021-12-15 11:37:46,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:46,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:46,350 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:46,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 11:37:46,351 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:46,351 INFO L85 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2021-12-15 11:37:46,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:46,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571312065] [2021-12-15 11:37:46,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:46,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:46,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571312065] [2021-12-15 11:37:46,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571312065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:46,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:46,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:46,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30107734] [2021-12-15 11:37:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:46,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:46,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:46,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:46,432 INFO L87 Difference]: Start difference. First operand 635 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:47,326 INFO L93 Difference]: Finished difference Result 1220 states and 1652 transitions. [2021-12-15 11:37:47,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:47,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:37:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:47,329 INFO L225 Difference]: With dead ends: 1220 [2021-12-15 11:37:47,330 INFO L226 Difference]: Without dead ends: 1121 [2021-12-15 11:37:47,330 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:47,331 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 3652 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3652 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:47,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3652 Valid, 2915 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:37:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-12-15 11:37:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 635. [2021-12-15 11:37:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3686786296900488) internal successors, (839), 634 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 839 transitions. [2021-12-15 11:37:47,385 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 839 transitions. Word has length 93 [2021-12-15 11:37:47,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:47,385 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 839 transitions. [2021-12-15 11:37:47,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 839 transitions. [2021-12-15 11:37:47,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:47,386 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:47,387 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:47,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 11:37:47,387 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:47,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:47,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2021-12-15 11:37:47,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:47,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785607423] [2021-12-15 11:37:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:47,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:47,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:47,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785607423] [2021-12-15 11:37:47,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785607423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:47,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:47,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:47,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030225185] [2021-12-15 11:37:47,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:47,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:47,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:47,491 INFO L87 Difference]: Start difference. First operand 635 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:48,559 INFO L93 Difference]: Finished difference Result 1229 states and 1659 transitions. [2021-12-15 11:37:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:48,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:48,562 INFO L225 Difference]: With dead ends: 1229 [2021-12-15 11:37:48,562 INFO L226 Difference]: Without dead ends: 1121 [2021-12-15 11:37:48,563 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:48,563 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 4628 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:48,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4628 Valid, 2638 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-12-15 11:37:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 635. [2021-12-15 11:37:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.367047308319739) internal successors, (838), 634 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 838 transitions. [2021-12-15 11:37:48,596 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 838 transitions. Word has length 95 [2021-12-15 11:37:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:48,597 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 838 transitions. [2021-12-15 11:37:48,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 838 transitions. [2021-12-15 11:37:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:48,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:48,598 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:48,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 11:37:48,599 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2021-12-15 11:37:48,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:48,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648132814] [2021-12-15 11:37:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:48,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:48,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:48,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648132814] [2021-12-15 11:37:48,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648132814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:48,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:48,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:48,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377881656] [2021-12-15 11:37:48,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:48,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:48,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:48,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:48,697 INFO L87 Difference]: Start difference. First operand 635 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:49,845 INFO L93 Difference]: Finished difference Result 1191 states and 1604 transitions. [2021-12-15 11:37:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:49,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:49,862 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:37:49,863 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:37:49,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:49,865 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 3825 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:49,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3825 Valid, 3226 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:37:49,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 635. [2021-12-15 11:37:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3654159869494291) internal successors, (837), 634 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 837 transitions. [2021-12-15 11:37:49,951 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 837 transitions. Word has length 95 [2021-12-15 11:37:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:49,951 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 837 transitions. [2021-12-15 11:37:49,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 837 transitions. [2021-12-15 11:37:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:49,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:49,952 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:49,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 11:37:49,953 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:49,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2021-12-15 11:37:49,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:49,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273327625] [2021-12-15 11:37:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:49,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:50,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273327625] [2021-12-15 11:37:50,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273327625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:50,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:50,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:50,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854532996] [2021-12-15 11:37:50,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:50,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:50,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:50,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:50,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:50,068 INFO L87 Difference]: Start difference. First operand 635 states and 837 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:51,053 INFO L93 Difference]: Finished difference Result 1282 states and 1727 transitions. [2021-12-15 11:37:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:51,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:51,056 INFO L225 Difference]: With dead ends: 1282 [2021-12-15 11:37:51,056 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:37:51,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:51,057 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 2926 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2839 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:51,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 3796 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:37:51,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 635. [2021-12-15 11:37:51,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.363784665579119) internal successors, (836), 634 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 836 transitions. [2021-12-15 11:37:51,098 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 836 transitions. Word has length 95 [2021-12-15 11:37:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:51,099 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 836 transitions. [2021-12-15 11:37:51,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 836 transitions. [2021-12-15 11:37:51,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:51,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:51,100 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:51,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 11:37:51,100 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:51,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2021-12-15 11:37:51,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:51,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229756433] [2021-12-15 11:37:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:51,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:51,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:51,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229756433] [2021-12-15 11:37:51,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229756433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:51,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:51,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:51,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680216110] [2021-12-15 11:37:51,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:51,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:51,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:51,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:51,194 INFO L87 Difference]: Start difference. First operand 635 states and 836 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:52,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:52,410 INFO L93 Difference]: Finished difference Result 1187 states and 1598 transitions. [2021-12-15 11:37:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:52,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:52,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:52,414 INFO L225 Difference]: With dead ends: 1187 [2021-12-15 11:37:52,414 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:37:52,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:52,415 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 3718 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:52,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3718 Valid, 3433 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:37:52,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:37:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 635. [2021-12-15 11:37:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3621533442088092) internal successors, (835), 634 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 835 transitions. [2021-12-15 11:37:52,487 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 835 transitions. Word has length 95 [2021-12-15 11:37:52,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:52,487 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 835 transitions. [2021-12-15 11:37:52,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 835 transitions. [2021-12-15 11:37:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:52,488 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:52,488 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:52,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 11:37:52,489 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -523524958, now seen corresponding path program 1 times [2021-12-15 11:37:52,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:52,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116423760] [2021-12-15 11:37:52,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:52,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:52,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:52,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116423760] [2021-12-15 11:37:52,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116423760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:52,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:52,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:52,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142210398] [2021-12-15 11:37:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:52,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:52,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:52,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:52,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:52,643 INFO L87 Difference]: Start difference. First operand 635 states and 835 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:37:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:54,849 INFO L93 Difference]: Finished difference Result 1647 states and 2266 transitions. [2021-12-15 11:37:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:54,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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 [2021-12-15 11:37:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:54,853 INFO L225 Difference]: With dead ends: 1647 [2021-12-15 11:37:54,853 INFO L226 Difference]: Without dead ends: 1561 [2021-12-15 11:37:54,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:54,856 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 5312 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 3471 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5312 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 3471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:54,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5312 Valid, 4123 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 3471 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-15 11:37:54,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-12-15 11:37:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 639. [2021-12-15 11:37:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.359805510534846) internal successors, (839), 638 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 839 transitions. [2021-12-15 11:37:54,912 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 839 transitions. Word has length 95 [2021-12-15 11:37:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:54,912 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 839 transitions. [2021-12-15 11:37:54,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:37:54,912 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 839 transitions. [2021-12-15 11:37:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:54,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:54,913 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:54,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 11:37:54,914 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:54,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:54,914 INFO L85 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2021-12-15 11:37:54,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:54,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229574399] [2021-12-15 11:37:54,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:54,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:55,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:55,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229574399] [2021-12-15 11:37:55,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229574399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:55,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:55,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:55,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349988694] [2021-12-15 11:37:55,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:55,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:55,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:55,033 INFO L87 Difference]: Start difference. First operand 639 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:56,176 INFO L93 Difference]: Finished difference Result 1191 states and 1599 transitions. [2021-12-15 11:37:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:56,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:56,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:56,189 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:37:56,189 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:37:56,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:56,195 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 3732 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3732 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:56,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3732 Valid, 3398 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:37:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 639. [2021-12-15 11:37:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.3581847649918963) internal successors, (838), 638 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 838 transitions. [2021-12-15 11:37:56,288 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 838 transitions. Word has length 95 [2021-12-15 11:37:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:56,288 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 838 transitions. [2021-12-15 11:37:56,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 838 transitions. [2021-12-15 11:37:56,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:56,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:56,290 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:56,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 11:37:56,290 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:56,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:56,290 INFO L85 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2021-12-15 11:37:56,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:56,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220554972] [2021-12-15 11:37:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:56,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:56,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:56,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220554972] [2021-12-15 11:37:56,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220554972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:56,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:56,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:56,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673120369] [2021-12-15 11:37:56,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:56,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:56,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:56,386 INFO L87 Difference]: Start difference. First operand 639 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:57,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:57,558 INFO L93 Difference]: Finished difference Result 1233 states and 1655 transitions. [2021-12-15 11:37:57,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:57,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:37:57,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:57,561 INFO L225 Difference]: With dead ends: 1233 [2021-12-15 11:37:57,561 INFO L226 Difference]: Without dead ends: 1125 [2021-12-15 11:37:57,562 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:37:57,563 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2005 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:57,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2005 Valid, 3155 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-12-15 11:37:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 639. [2021-12-15 11:37:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.3565640194489466) internal successors, (837), 638 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 837 transitions. [2021-12-15 11:37:57,624 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 837 transitions. Word has length 95 [2021-12-15 11:37:57,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:57,624 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 837 transitions. [2021-12-15 11:37:57,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:37:57,624 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 837 transitions. [2021-12-15 11:37:57,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:57,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:57,639 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:57,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 11:37:57,640 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:57,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:57,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1112928597, now seen corresponding path program 1 times [2021-12-15 11:37:57,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:57,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650336073] [2021-12-15 11:37:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:57,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:57,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:57,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650336073] [2021-12-15 11:37:57,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650336073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:57,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:57,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:57,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203943287] [2021-12-15 11:37:57,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:57,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:57,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:57,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:57,858 INFO L87 Difference]: Start difference. First operand 639 states and 837 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:37:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:59,836 INFO L93 Difference]: Finished difference Result 1647 states and 2265 transitions. [2021-12-15 11:37:59,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:59,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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 [2021-12-15 11:37:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:59,841 INFO L225 Difference]: With dead ends: 1647 [2021-12-15 11:37:59,841 INFO L226 Difference]: Without dead ends: 1561 [2021-12-15 11:37:59,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:59,842 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 7180 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 2934 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7180 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 2934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:59,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7180 Valid, 3588 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 2934 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:37:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-12-15 11:37:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 643. [2021-12-15 11:37:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.35426731078905) internal successors, (841), 642 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 841 transitions. [2021-12-15 11:37:59,890 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 841 transitions. Word has length 95 [2021-12-15 11:37:59,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:59,891 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 841 transitions. [2021-12-15 11:37:59,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:37:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 841 transitions. [2021-12-15 11:37:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:59,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:59,892 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:37:59,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 11:37:59,892 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2021-12-15 11:37:59,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163934270] [2021-12-15 11:37:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:59,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:59,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163934270] [2021-12-15 11:37:59,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163934270] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:59,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:59,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:59,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081275842] [2021-12-15 11:37:59,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:59,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:59,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:59,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:59,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:59,995 INFO L87 Difference]: Start difference. First operand 643 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:00,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:00,931 INFO L93 Difference]: Finished difference Result 1187 states and 1593 transitions. [2021-12-15 11:38:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:38:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:00,946 INFO L225 Difference]: With dead ends: 1187 [2021-12-15 11:38:00,946 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:00,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:00,948 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 3787 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3787 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:00,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3787 Valid, 3274 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:00,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:01,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 643. [2021-12-15 11:38:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3526570048309179) internal successors, (840), 642 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 840 transitions. [2021-12-15 11:38:01,018 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 840 transitions. Word has length 95 [2021-12-15 11:38:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:01,018 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 840 transitions. [2021-12-15 11:38:01,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 840 transitions. [2021-12-15 11:38:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:01,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:01,020 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:01,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-15 11:38:01,020 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:01,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:01,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1153671650, now seen corresponding path program 1 times [2021-12-15 11:38:01,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:01,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811015457] [2021-12-15 11:38:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:01,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:01,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:01,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811015457] [2021-12-15 11:38:01,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811015457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:01,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:01,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:01,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450022376] [2021-12-15 11:38:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:01,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:01,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:01,096 INFO L87 Difference]: Start difference. First operand 643 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:02,053 INFO L93 Difference]: Finished difference Result 1237 states and 1658 transitions. [2021-12-15 11:38:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:02,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:38:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:02,055 INFO L225 Difference]: With dead ends: 1237 [2021-12-15 11:38:02,055 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:38:02,056 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:02,056 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 3107 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:02,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3107 Valid, 3100 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:38:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 643. [2021-12-15 11:38:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3510466988727858) internal successors, (839), 642 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 839 transitions. [2021-12-15 11:38:02,111 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 839 transitions. Word has length 95 [2021-12-15 11:38:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:02,111 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 839 transitions. [2021-12-15 11:38:02,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 839 transitions. [2021-12-15 11:38:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:02,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:02,112 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:02,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-15 11:38:02,113 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2021-12-15 11:38:02,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:02,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270467009] [2021-12-15 11:38:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:02,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:02,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:02,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270467009] [2021-12-15 11:38:02,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270467009] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:02,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:02,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:02,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005702589] [2021-12-15 11:38:02,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:02,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:02,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:02,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:02,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:02,208 INFO L87 Difference]: Start difference. First operand 643 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:03,189 INFO L93 Difference]: Finished difference Result 1191 states and 1595 transitions. [2021-12-15 11:38:03,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:03,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:38:03,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:03,191 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:38:03,191 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:03,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:03,193 INFO L933 BasicCegarLoop]: 707 mSDtfsCounter, 3644 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3644 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:03,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3644 Valid, 3576 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:03,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:03,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 643. [2021-12-15 11:38:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3494363929146538) internal successors, (838), 642 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 838 transitions. [2021-12-15 11:38:03,268 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 838 transitions. Word has length 95 [2021-12-15 11:38:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:03,268 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 838 transitions. [2021-12-15 11:38:03,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 838 transitions. [2021-12-15 11:38:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:03,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:03,269 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:03,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-15 11:38:03,270 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1037319048, now seen corresponding path program 1 times [2021-12-15 11:38:03,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:03,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422972365] [2021-12-15 11:38:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:03,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:03,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:03,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422972365] [2021-12-15 11:38:03,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422972365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:03,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:03,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:03,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30566130] [2021-12-15 11:38:03,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:03,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:03,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:03,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:03,420 INFO L87 Difference]: Start difference. First operand 643 states and 838 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:38:05,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:05,176 INFO L93 Difference]: Finished difference Result 1639 states and 2253 transitions. [2021-12-15 11:38:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:05,176 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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 [2021-12-15 11:38:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:05,179 INFO L225 Difference]: With dead ends: 1639 [2021-12-15 11:38:05,179 INFO L226 Difference]: Without dead ends: 1557 [2021-12-15 11:38:05,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:05,180 INFO L933 BasicCegarLoop]: 735 mSDtfsCounter, 5910 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5910 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:05,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5910 Valid, 3626 Invalid, 3577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 2956 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:38:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2021-12-15 11:38:05,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 647. [2021-12-15 11:38:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.3472) internal successors, (842), 646 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 842 transitions. [2021-12-15 11:38:05,253 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 842 transitions. Word has length 95 [2021-12-15 11:38:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:05,253 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 842 transitions. [2021-12-15 11:38:05,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:38:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 842 transitions. [2021-12-15 11:38:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:05,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:05,254 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:05,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-15 11:38:05,255 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2021-12-15 11:38:05,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:05,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903771181] [2021-12-15 11:38:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:05,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:05,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:05,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903771181] [2021-12-15 11:38:05,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903771181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:05,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:05,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:05,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941217072] [2021-12-15 11:38:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:05,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:05,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:05,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:05,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:05,344 INFO L87 Difference]: Start difference. First operand 647 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:06,600 INFO L93 Difference]: Finished difference Result 1185 states and 1587 transitions. [2021-12-15 11:38:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:06,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:38:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:06,602 INFO L225 Difference]: With dead ends: 1185 [2021-12-15 11:38:06,602 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:06,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:06,607 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 3742 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 2645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:06,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3742 Valid, 3343 Invalid, 2645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:38:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 647. [2021-12-15 11:38:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.3456) internal successors, (841), 646 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 841 transitions. [2021-12-15 11:38:06,660 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 841 transitions. Word has length 95 [2021-12-15 11:38:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:06,661 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 841 transitions. [2021-12-15 11:38:06,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 841 transitions. [2021-12-15 11:38:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:06,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:06,662 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:06,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-15 11:38:06,662 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1152638694, now seen corresponding path program 1 times [2021-12-15 11:38:06,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:06,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940464038] [2021-12-15 11:38:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:06,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:06,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:06,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940464038] [2021-12-15 11:38:06,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940464038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:06,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:06,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:06,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061788889] [2021-12-15 11:38:06,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:06,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:06,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:06,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:06,805 INFO L87 Difference]: Start difference. First operand 647 states and 841 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:38:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:08,447 INFO L93 Difference]: Finished difference Result 1647 states and 2257 transitions. [2021-12-15 11:38:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:08,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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 [2021-12-15 11:38:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:08,450 INFO L225 Difference]: With dead ends: 1647 [2021-12-15 11:38:08,450 INFO L226 Difference]: Without dead ends: 1561 [2021-12-15 11:38:08,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:08,452 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 5941 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5941 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:08,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5941 Valid, 3253 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 2608 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:38:08,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2021-12-15 11:38:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 651. [2021-12-15 11:38:08,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.343402225755167) internal successors, (845), 650 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 845 transitions. [2021-12-15 11:38:08,509 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 845 transitions. Word has length 95 [2021-12-15 11:38:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:08,509 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 845 transitions. [2021-12-15 11:38:08,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 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) [2021-12-15 11:38:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 845 transitions. [2021-12-15 11:38:08,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:38:08,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:08,511 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:08,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-15 11:38:08,511 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:08,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:08,511 INFO L85 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2021-12-15 11:38:08,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:08,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055430681] [2021-12-15 11:38:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:08,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:08,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:08,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055430681] [2021-12-15 11:38:08,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055430681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:08,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:08,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:08,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693305007] [2021-12-15 11:38:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:08,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:08,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:08,607 INFO L87 Difference]: Start difference. First operand 651 states and 845 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:09,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:09,741 INFO L93 Difference]: Finished difference Result 1187 states and 1587 transitions. [2021-12-15 11:38:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:09,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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 [2021-12-15 11:38:09,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:09,744 INFO L225 Difference]: With dead ends: 1187 [2021-12-15 11:38:09,744 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:09,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:09,745 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 3753 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3753 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:09,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3753 Valid, 3311 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:38:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:09,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 651. [2021-12-15 11:38:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.34181240063593) internal successors, (844), 650 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:09,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 844 transitions. [2021-12-15 11:38:09,800 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 844 transitions. Word has length 95 [2021-12-15 11:38:09,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:09,800 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 844 transitions. [2021-12-15 11:38:09,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 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) [2021-12-15 11:38:09,800 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 844 transitions. [2021-12-15 11:38:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 11:38:09,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:09,801 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:09,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-15 11:38:09,801 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:09,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1717932859, now seen corresponding path program 1 times [2021-12-15 11:38:09,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:09,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725569578] [2021-12-15 11:38:09,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:09,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:09,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:09,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725569578] [2021-12-15 11:38:09,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725569578] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:09,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:09,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:09,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516105742] [2021-12-15 11:38:09,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:09,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:09,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:09,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:09,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:09,883 INFO L87 Difference]: Start difference. First operand 651 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:10,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:10,936 INFO L93 Difference]: Finished difference Result 1191 states and 1589 transitions. [2021-12-15 11:38:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:10,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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 [2021-12-15 11:38:10,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:10,938 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:38:10,938 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:10,939 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:10,939 INFO L933 BasicCegarLoop]: 707 mSDtfsCounter, 4033 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4033 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:10,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4033 Valid, 2872 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:38:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 647. [2021-12-15 11:38:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.3424) internal successors, (839), 646 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 839 transitions. [2021-12-15 11:38:10,994 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 839 transitions. Word has length 96 [2021-12-15 11:38:10,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:10,994 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 839 transitions. [2021-12-15 11:38:10,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 839 transitions. [2021-12-15 11:38:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 11:38:10,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:10,996 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:10,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-15 11:38:10,996 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:10,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash 908385995, now seen corresponding path program 1 times [2021-12-15 11:38:10,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:10,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755781118] [2021-12-15 11:38:10,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:10,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:11,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:11,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755781118] [2021-12-15 11:38:11,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755781118] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:11,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:11,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:11,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404406955] [2021-12-15 11:38:11,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:11,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:11,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:11,071 INFO L87 Difference]: Start difference. First operand 647 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:11,909 INFO L93 Difference]: Finished difference Result 1191 states and 1589 transitions. [2021-12-15 11:38:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:11,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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 [2021-12-15 11:38:11,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:11,911 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:38:11,911 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:11,912 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:11,912 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 3451 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:11,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3451 Valid, 2908 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:38:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 643. [2021-12-15 11:38:11,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3429951690821256) internal successors, (834), 642 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 834 transitions. [2021-12-15 11:38:11,973 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 834 transitions. Word has length 96 [2021-12-15 11:38:11,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:11,974 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 834 transitions. [2021-12-15 11:38:11,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 834 transitions. [2021-12-15 11:38:11,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 11:38:11,975 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:11,979 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:11,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-15 11:38:11,980 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 180481878, now seen corresponding path program 1 times [2021-12-15 11:38:11,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:11,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743478496] [2021-12-15 11:38:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:11,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:12,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:12,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743478496] [2021-12-15 11:38:12,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743478496] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:12,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:12,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:12,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997874083] [2021-12-15 11:38:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:12,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:12,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:12,065 INFO L87 Difference]: Start difference. First operand 643 states and 834 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:13,097 INFO L93 Difference]: Finished difference Result 1187 states and 1584 transitions. [2021-12-15 11:38:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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 [2021-12-15 11:38:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:13,100 INFO L225 Difference]: With dead ends: 1187 [2021-12-15 11:38:13,100 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:13,100 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:13,101 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 3004 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3004 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:13,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3004 Valid, 2926 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:38:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 639. [2021-12-15 11:38:13,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.3435980551053484) internal successors, (829), 638 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 829 transitions. [2021-12-15 11:38:13,172 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 829 transitions. Word has length 96 [2021-12-15 11:38:13,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:13,172 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 829 transitions. [2021-12-15 11:38:13,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 829 transitions. [2021-12-15 11:38:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 11:38:13,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:13,174 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:13,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-15 11:38:13,174 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:13,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:13,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2139399220, now seen corresponding path program 1 times [2021-12-15 11:38:13,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:13,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73467591] [2021-12-15 11:38:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:13,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:13,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:13,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73467591] [2021-12-15 11:38:13,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73467591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:13,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:13,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:13,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500065780] [2021-12-15 11:38:13,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:13,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:13,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:13,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:13,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:13,293 INFO L87 Difference]: Start difference. First operand 639 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:14,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:14,102 INFO L93 Difference]: Finished difference Result 1191 states and 1586 transitions. [2021-12-15 11:38:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:14,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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 [2021-12-15 11:38:14,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:14,105 INFO L225 Difference]: With dead ends: 1191 [2021-12-15 11:38:14,105 INFO L226 Difference]: Without dead ends: 1105 [2021-12-15 11:38:14,106 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:14,106 INFO L933 BasicCegarLoop]: 729 mSDtfsCounter, 2951 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:14,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2951 Valid, 2964 Invalid, 2376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:38:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-15 11:38:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 635. [2021-12-15 11:38:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3442088091353996) internal successors, (824), 634 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 824 transitions. [2021-12-15 11:38:14,170 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 824 transitions. Word has length 96 [2021-12-15 11:38:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:14,170 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 824 transitions. [2021-12-15 11:38:14,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 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) [2021-12-15 11:38:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 824 transitions. [2021-12-15 11:38:14,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:14,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:14,172 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:14,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-15 11:38:14,172 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2021-12-15 11:38:14,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:14,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138436435] [2021-12-15 11:38:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:14,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:14,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:14,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138436435] [2021-12-15 11:38:14,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138436435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:14,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:14,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:14,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226411848] [2021-12-15 11:38:14,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:14,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:14,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:14,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:14,327 INFO L87 Difference]: Start difference. First operand 635 states and 824 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:15,271 INFO L93 Difference]: Finished difference Result 1149 states and 1521 transitions. [2021-12-15 11:38:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:15,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:15,273 INFO L225 Difference]: With dead ends: 1149 [2021-12-15 11:38:15,273 INFO L226 Difference]: Without dead ends: 1073 [2021-12-15 11:38:15,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:15,274 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 3630 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:15,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3630 Valid, 3199 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:15,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2021-12-15 11:38:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 635. [2021-12-15 11:38:15,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 613 states have (on average 1.3425774877650898) internal successors, (823), 634 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:15,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 823 transitions. [2021-12-15 11:38:15,337 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 823 transitions. Word has length 97 [2021-12-15 11:38:15,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:15,337 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 823 transitions. [2021-12-15 11:38:15,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 823 transitions. [2021-12-15 11:38:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:15,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:15,339 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:15,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-15 11:38:15,339 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:15,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:15,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2021-12-15 11:38:15,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:15,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199684165] [2021-12-15 11:38:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:15,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:15,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199684165] [2021-12-15 11:38:15,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199684165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:15,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:15,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:15,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705516851] [2021-12-15 11:38:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:15,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:15,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:15,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:15,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:15,527 INFO L87 Difference]: Start difference. First operand 635 states and 823 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:17,095 INFO L93 Difference]: Finished difference Result 1521 states and 2060 transitions. [2021-12-15 11:38:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:17,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2021-12-15 11:38:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:17,097 INFO L225 Difference]: With dead ends: 1521 [2021-12-15 11:38:17,097 INFO L226 Difference]: Without dead ends: 1442 [2021-12-15 11:38:17,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:17,098 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 5769 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5769 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:17,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5769 Valid, 3413 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:38:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2021-12-15 11:38:17,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 639. [2021-12-15 11:38:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.340356564019449) internal successors, (827), 638 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 827 transitions. [2021-12-15 11:38:17,161 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 827 transitions. Word has length 97 [2021-12-15 11:38:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:17,161 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 827 transitions. [2021-12-15 11:38:17,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 827 transitions. [2021-12-15 11:38:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:17,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:17,163 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:17,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-15 11:38:17,163 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2021-12-15 11:38:17,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:17,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387754437] [2021-12-15 11:38:17,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:17,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:17,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:17,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387754437] [2021-12-15 11:38:17,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387754437] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:17,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:17,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:17,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783121769] [2021-12-15 11:38:17,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:17,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:17,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:17,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:17,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:17,250 INFO L87 Difference]: Start difference. First operand 639 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:18,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:18,178 INFO L93 Difference]: Finished difference Result 1152 states and 1522 transitions. [2021-12-15 11:38:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:18,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:18,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:18,181 INFO L225 Difference]: With dead ends: 1152 [2021-12-15 11:38:18,181 INFO L226 Difference]: Without dead ends: 1073 [2021-12-15 11:38:18,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:18,181 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 3727 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:18,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3727 Valid, 2981 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:18,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2021-12-15 11:38:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 639. [2021-12-15 11:38:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.3387358184764993) internal successors, (826), 638 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 826 transitions. [2021-12-15 11:38:18,246 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 826 transitions. Word has length 97 [2021-12-15 11:38:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:18,246 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 826 transitions. [2021-12-15 11:38:18,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 826 transitions. [2021-12-15 11:38:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:18,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:18,248 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:18,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-15 11:38:18,248 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2021-12-15 11:38:18,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:18,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8971453] [2021-12-15 11:38:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:18,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:18,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:18,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8971453] [2021-12-15 11:38:18,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8971453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:18,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:18,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:18,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901116747] [2021-12-15 11:38:18,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:18,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:18,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:18,394 INFO L87 Difference]: Start difference. First operand 639 states and 826 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:20,210 INFO L93 Difference]: Finished difference Result 1661 states and 2262 transitions. [2021-12-15 11:38:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:20,210 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2021-12-15 11:38:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:20,229 INFO L225 Difference]: With dead ends: 1661 [2021-12-15 11:38:20,229 INFO L226 Difference]: Without dead ends: 1570 [2021-12-15 11:38:20,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:20,230 INFO L933 BasicCegarLoop]: 760 mSDtfsCounter, 6923 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 710 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6923 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 3664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 710 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:20,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6923 Valid, 3726 Invalid, 3664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [710 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:38:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-12-15 11:38:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 643. [2021-12-15 11:38:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3365539452495974) internal successors, (830), 642 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 830 transitions. [2021-12-15 11:38:20,320 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 830 transitions. Word has length 97 [2021-12-15 11:38:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:20,320 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 830 transitions. [2021-12-15 11:38:20,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 830 transitions. [2021-12-15 11:38:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:20,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:20,321 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:20,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-15 11:38:20,322 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:20,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2021-12-15 11:38:20,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:20,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415550793] [2021-12-15 11:38:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:20,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:20,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:20,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415550793] [2021-12-15 11:38:20,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415550793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:20,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:20,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:20,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104841730] [2021-12-15 11:38:20,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:20,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:20,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:20,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:20,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:20,415 INFO L87 Difference]: Start difference. First operand 643 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:21,442 INFO L93 Difference]: Finished difference Result 1156 states and 1525 transitions. [2021-12-15 11:38:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:21,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:21,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:21,444 INFO L225 Difference]: With dead ends: 1156 [2021-12-15 11:38:21,444 INFO L226 Difference]: Without dead ends: 1077 [2021-12-15 11:38:21,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:21,446 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 3723 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3723 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:21,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3723 Valid, 2981 Invalid, 2530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-15 11:38:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 643. [2021-12-15 11:38:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3349436392914653) internal successors, (829), 642 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 829 transitions. [2021-12-15 11:38:21,515 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 829 transitions. Word has length 97 [2021-12-15 11:38:21,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:21,515 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 829 transitions. [2021-12-15 11:38:21,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 829 transitions. [2021-12-15 11:38:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:21,516 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:21,516 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:21,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-15 11:38:21,516 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:21,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2021-12-15 11:38:21,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:21,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226703253] [2021-12-15 11:38:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:21,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:21,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:21,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226703253] [2021-12-15 11:38:21,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226703253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:21,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:21,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:21,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461708897] [2021-12-15 11:38:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:21,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:21,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:21,605 INFO L87 Difference]: Start difference. First operand 643 states and 829 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:23,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:23,023 INFO L93 Difference]: Finished difference Result 1200 states and 1589 transitions. [2021-12-15 11:38:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:23,025 INFO L225 Difference]: With dead ends: 1200 [2021-12-15 11:38:23,025 INFO L226 Difference]: Without dead ends: 1109 [2021-12-15 11:38:23,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:23,026 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 3697 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3697 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:23,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3697 Valid, 3367 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:38:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-12-15 11:38:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 643. [2021-12-15 11:38:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3333333333333333) internal successors, (828), 642 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 828 transitions. [2021-12-15 11:38:23,094 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 828 transitions. Word has length 97 [2021-12-15 11:38:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:23,094 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 828 transitions. [2021-12-15 11:38:23,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 828 transitions. [2021-12-15 11:38:23,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:23,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:23,096 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:23,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-15 11:38:23,112 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:23,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:23,112 INFO L85 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2021-12-15 11:38:23,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:23,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505756133] [2021-12-15 11:38:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:23,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:23,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:23,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505756133] [2021-12-15 11:38:23,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505756133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:23,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:23,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:23,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448191780] [2021-12-15 11:38:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:23,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:23,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:23,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:23,230 INFO L87 Difference]: Start difference. First operand 643 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:24,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:24,122 INFO L93 Difference]: Finished difference Result 1243 states and 1645 transitions. [2021-12-15 11:38:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:24,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:24,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:24,125 INFO L225 Difference]: With dead ends: 1243 [2021-12-15 11:38:24,125 INFO L226 Difference]: Without dead ends: 1129 [2021-12-15 11:38:24,126 INFO L932 BasicCegarLoop]: 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 [2021-12-15 11:38:24,126 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 1993 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:24,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 3123 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:38:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2021-12-15 11:38:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 643. [2021-12-15 11:38:24,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3317230273752012) internal successors, (827), 642 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:24,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 827 transitions. [2021-12-15 11:38:24,194 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 827 transitions. Word has length 97 [2021-12-15 11:38:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:24,194 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 827 transitions. [2021-12-15 11:38:24,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 827 transitions. [2021-12-15 11:38:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:24,196 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:24,196 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:24,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-15 11:38:24,196 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:24,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:24,197 INFO L85 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2021-12-15 11:38:24,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:24,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162833212] [2021-12-15 11:38:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:24,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:24,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162833212] [2021-12-15 11:38:24,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162833212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:24,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:24,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:24,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266572056] [2021-12-15 11:38:24,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:24,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:24,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:24,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:24,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:24,294 INFO L87 Difference]: Start difference. First operand 643 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:25,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:25,321 INFO L93 Difference]: Finished difference Result 1151 states and 1517 transitions. [2021-12-15 11:38:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:25,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:25,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:25,324 INFO L225 Difference]: With dead ends: 1151 [2021-12-15 11:38:25,324 INFO L226 Difference]: Without dead ends: 1077 [2021-12-15 11:38:25,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:25,325 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 3589 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3589 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:25,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3589 Valid, 3252 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:38:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-15 11:38:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 643. [2021-12-15 11:38:25,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.3301127214170692) internal successors, (826), 642 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 826 transitions. [2021-12-15 11:38:25,398 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 826 transitions. Word has length 97 [2021-12-15 11:38:25,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:25,399 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 826 transitions. [2021-12-15 11:38:25,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 826 transitions. [2021-12-15 11:38:25,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:25,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:25,400 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:25,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-15 11:38:25,400 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:25,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:25,401 INFO L85 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2021-12-15 11:38:25,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:25,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833019932] [2021-12-15 11:38:25,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:25,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:25,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:25,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833019932] [2021-12-15 11:38:25,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833019932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:25,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:25,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:25,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791623250] [2021-12-15 11:38:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:25,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:25,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:25,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:25,572 INFO L87 Difference]: Start difference. First operand 643 states and 826 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:27,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:27,622 INFO L93 Difference]: Finished difference Result 1519 states and 2052 transitions. [2021-12-15 11:38:27,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:27,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2021-12-15 11:38:27,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:27,625 INFO L225 Difference]: With dead ends: 1519 [2021-12-15 11:38:27,625 INFO L226 Difference]: Without dead ends: 1443 [2021-12-15 11:38:27,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:27,626 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 6845 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6845 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:27,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6845 Valid, 3252 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [925 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:38:27,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2021-12-15 11:38:27,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 647. [2021-12-15 11:38:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.328) internal successors, (830), 646 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 830 transitions. [2021-12-15 11:38:27,698 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 830 transitions. Word has length 97 [2021-12-15 11:38:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:27,698 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 830 transitions. [2021-12-15 11:38:27,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:27,698 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 830 transitions. [2021-12-15 11:38:27,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:27,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:27,699 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:27,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-15 11:38:27,699 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2021-12-15 11:38:27,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:27,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144320976] [2021-12-15 11:38:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:27,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:27,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:27,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144320976] [2021-12-15 11:38:27,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144320976] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:27,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:27,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:27,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191303363] [2021-12-15 11:38:27,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:27,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:27,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:27,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:27,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:27,784 INFO L87 Difference]: Start difference. First operand 647 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:28,959 INFO L93 Difference]: Finished difference Result 1153 states and 1517 transitions. [2021-12-15 11:38:28,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:28,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:28,962 INFO L225 Difference]: With dead ends: 1153 [2021-12-15 11:38:28,962 INFO L226 Difference]: Without dead ends: 1077 [2021-12-15 11:38:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:28,964 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 3685 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3685 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:28,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3685 Valid, 3033 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:38:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-15 11:38:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 647. [2021-12-15 11:38:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.3264) internal successors, (829), 646 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 829 transitions. [2021-12-15 11:38:29,037 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 829 transitions. Word has length 97 [2021-12-15 11:38:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:29,037 INFO L470 AbstractCegarLoop]: Abstraction has 647 states and 829 transitions. [2021-12-15 11:38:29,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 829 transitions. [2021-12-15 11:38:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:29,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:29,040 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:29,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-15 11:38:29,041 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1414714454, now seen corresponding path program 1 times [2021-12-15 11:38:29,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:29,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412890202] [2021-12-15 11:38:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:29,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:29,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412890202] [2021-12-15 11:38:29,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412890202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:29,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:29,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:29,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54991012] [2021-12-15 11:38:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:29,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:29,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:29,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:29,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:29,185 INFO L87 Difference]: Start difference. First operand 647 states and 829 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:31,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:31,159 INFO L93 Difference]: Finished difference Result 1451 states and 1944 transitions. [2021-12-15 11:38:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:38:31,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2021-12-15 11:38:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:31,161 INFO L225 Difference]: With dead ends: 1451 [2021-12-15 11:38:31,161 INFO L226 Difference]: Without dead ends: 1446 [2021-12-15 11:38:31,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:38:31,162 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 5740 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5740 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:31,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5740 Valid, 2832 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:38:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2021-12-15 11:38:31,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 651. [2021-12-15 11:38:31,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.3243243243243243) internal successors, (833), 650 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:31,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 833 transitions. [2021-12-15 11:38:31,241 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 833 transitions. Word has length 97 [2021-12-15 11:38:31,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:31,241 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 833 transitions. [2021-12-15 11:38:31,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2021-12-15 11:38:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 833 transitions. [2021-12-15 11:38:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:31,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:31,242 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:31,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-15 11:38:31,242 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash 610975350, now seen corresponding path program 1 times [2021-12-15 11:38:31,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:31,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778366609] [2021-12-15 11:38:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:31,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:31,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:31,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778366609] [2021-12-15 11:38:31,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778366609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:31,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:31,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:38:31,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530051499] [2021-12-15 11:38:31,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:31,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:38:31,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:38:31,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:38:31,352 INFO L87 Difference]: Start difference. First operand 651 states and 833 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:32,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:32,564 INFO L93 Difference]: Finished difference Result 1082 states and 1407 transitions. [2021-12-15 11:38:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:38:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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 [2021-12-15 11:38:32,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:32,566 INFO L225 Difference]: With dead ends: 1082 [2021-12-15 11:38:32,566 INFO L226 Difference]: Without dead ends: 1077 [2021-12-15 11:38:32,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:38:32,572 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 3687 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3687 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 2512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:32,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3687 Valid, 3018 Invalid, 2512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:38:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-12-15 11:38:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 651. [2021-12-15 11:38:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.3227344992050873) internal successors, (832), 650 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 832 transitions. [2021-12-15 11:38:32,650 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 832 transitions. Word has length 97 [2021-12-15 11:38:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:32,663 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 832 transitions. [2021-12-15 11:38:32,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 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) [2021-12-15 11:38:32,663 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 832 transitions. [2021-12-15 11:38:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:38:32,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:32,671 INFO L514 BasicCegarLoop]: 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] [2021-12-15 11:38:32,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-15 11:38:32,672 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:38:32,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1771794844, now seen corresponding path program 1 times [2021-12-15 11:38:32,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:32,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898565522] [2021-12-15 11:38:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:32,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:32,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:32,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898565522] [2021-12-15 11:38:32,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898565522] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:32,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:32,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:38:32,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974671929] [2021-12-15 11:38:32,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:32,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:38:32,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:32,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:38:32,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:38:32,803 INFO L87 Difference]: Start difference. First operand 651 states and 832 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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)