./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:30:52,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:30:52,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:30:52,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:30:52,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:30:52,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:30:52,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:30:52,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:30:52,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:30:52,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:30:52,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:30:52,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:30:52,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:30:52,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:30:52,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:30:52,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:30:52,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:30:52,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:30:52,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:30:52,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:30:52,583 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:30:52,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:30:52,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:30:52,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:30:52,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:30:52,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:30:52,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:30:52,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:30:52,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:30:52,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:30:52,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:30:52,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:30:52,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:30:52,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:30:52,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:30:52,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:30:52,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:30:52,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:30:52,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:30:52,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:30:52,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:30:52,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:30:52,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:30:52,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:30:52,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:30:52,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:30:52,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:30:52,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:30:52,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:30:52,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:30:52,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:30:52,637 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:30:52,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:30:52,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:30:52,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:30:52,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:30:52,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:30:52,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:30:52,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:30:52,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:30:52,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:30:52,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:30:52,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:30:52,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:30:52,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:30:52,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:30:52,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:30:52,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:30:52,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:30:52,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:30:52,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:30:52,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:30:52,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:30:52,643 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:30:52,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:30:52,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:30:52,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 [2022-07-19 18:30:52,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:30:52,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:30:52,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:30:52,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:30:52,864 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:30:52,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:30:52,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9020f59af/088ea9c5ec144d87b22a22b143f3cf72/FLAGf29a54cb0 [2022-07-19 18:30:53,570 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:30:53,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:30:53,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9020f59af/088ea9c5ec144d87b22a22b143f3cf72/FLAGf29a54cb0 [2022-07-19 18:30:53,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9020f59af/088ea9c5ec144d87b22a22b143f3cf72 [2022-07-19 18:30:53,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:30:53,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:30:53,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:30:53,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:30:53,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:30:53,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:30:53" (1/1) ... [2022-07-19 18:30:53,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e91a899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:53, skipping insertion in model container [2022-07-19 18:30:53,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:30:53" (1/1) ... [2022-07-19 18:30:53,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:30:54,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:30:54,746 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2022-07-19 18:30:54,859 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2022-07-19 18:30:54,908 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2022-07-19 18:30:54,928 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2022-07-19 18:30:54,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2022-07-19 18:30:54,950 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2022-07-19 18:30:55,060 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2022-07-19 18:30:55,100 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2022-07-19 18:30:55,117 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2022-07-19 18:30:55,126 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2022-07-19 18:30:55,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2022-07-19 18:30:55,172 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2022-07-19 18:30:55,191 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2022-07-19 18:30:55,203 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2022-07-19 18:30:55,212 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2022-07-19 18:30:55,222 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2022-07-19 18:30:55,231 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2022-07-19 18:30:55,240 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2022-07-19 18:30:55,249 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2022-07-19 18:30:55,261 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2022-07-19 18:30:55,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2022-07-19 18:30:55,279 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2022-07-19 18:30:55,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:30:55,328 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:30:55,520 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2022-07-19 18:30:55,590 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2022-07-19 18:30:55,617 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2022-07-19 18:30:55,641 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2022-07-19 18:30:55,655 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2022-07-19 18:30:55,663 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2022-07-19 18:30:55,714 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2022-07-19 18:30:55,742 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2022-07-19 18:30:55,757 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2022-07-19 18:30:55,764 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2022-07-19 18:30:55,771 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2022-07-19 18:30:55,803 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2022-07-19 18:30:55,823 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2022-07-19 18:30:55,830 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2022-07-19 18:30:55,837 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2022-07-19 18:30:55,845 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2022-07-19 18:30:55,853 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2022-07-19 18:30:55,860 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2022-07-19 18:30:55,868 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2022-07-19 18:30:55,876 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2022-07-19 18:30:55,883 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2022-07-19 18:30:55,890 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.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2022-07-19 18:30:55,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:30:55,969 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:30:55,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55 WrapperNode [2022-07-19 18:30:55,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:30:55,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:30:55,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:30:55,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:30:55,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,153 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11488 [2022-07-19 18:30:56,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:30:56,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:30:56,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:30:56,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:30:56,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:30:56,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:30:56,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:30:56,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:30:56,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (1/1) ... [2022-07-19 18:30:56,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:30:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:30:56,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 18:30:56,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 18:30:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:30:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:30:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:30:56,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:30:56,850 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:30:56,851 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:31:00,717 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:31:00,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:31:00,745 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:31:00,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:31:00 BoogieIcfgContainer [2022-07-19 18:31:00,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:31:00,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:31:00,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:31:00,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:31:00,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:30:53" (1/3) ... [2022-07-19 18:31:00,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebd938e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:31:00, skipping insertion in model container [2022-07-19 18:31:00,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:30:55" (2/3) ... [2022-07-19 18:31:00,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebd938e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:31:00, skipping insertion in model container [2022-07-19 18:31:00,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:31:00" (3/3) ... [2022-07-19 18:31:00,760 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:31:00,772 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:31:00,772 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-19 18:31:00,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:31:00,860 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@74bd7e89, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35f3b4c [2022-07-19 18:31:00,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-19 18:31:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 18:31:00,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:00,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:00,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash 945954769, now seen corresponding path program 1 times [2022-07-19 18:31:00,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:00,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042177510] [2022-07-19 18:31:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:00,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:01,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:01,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042177510] [2022-07-19 18:31:01,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042177510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:01,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:01,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:01,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991544625] [2022-07-19 18:31:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:01,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:01,426 INFO L87 Difference]: Start difference. First operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 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 17.2) 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) [2022-07-19 18:31:02,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:02,751 INFO L93 Difference]: Finished difference Result 2546 states and 4528 transitions. [2022-07-19 18:31:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:02,756 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 [2022-07-19 18:31:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:02,783 INFO L225 Difference]: With dead ends: 2546 [2022-07-19 18:31:02,785 INFO L226 Difference]: Without dead ends: 1401 [2022-07-19 18:31:02,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:02,802 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 7221 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:02,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7221 Valid, 1445 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:31:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-07-19 18:31:02,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2022-07-19 18:31:02,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1379 states have (on average 1.3038433647570704) internal successors, (1798), 1400 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1798 transitions. [2022-07-19 18:31:02,900 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1798 transitions. Word has length 86 [2022-07-19 18:31:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:02,900 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1798 transitions. [2022-07-19 18:31:02,901 INFO L496 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) [2022-07-19 18:31:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1798 transitions. [2022-07-19 18:31:02,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 18:31:02,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:02,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:02,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:31:02,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:02,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:02,906 INFO L85 PathProgramCache]: Analyzing trace with hash -340795257, now seen corresponding path program 1 times [2022-07-19 18:31:02,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:02,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680049888] [2022-07-19 18:31:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:02,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:03,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:03,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680049888] [2022-07-19 18:31:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680049888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:03,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:03,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254287725] [2022-07-19 18:31:03,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:03,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:03,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:03,054 INFO L87 Difference]: Start difference. First operand 1401 states and 1798 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) [2022-07-19 18:31:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:03,709 INFO L93 Difference]: Finished difference Result 1672 states and 2149 transitions. [2022-07-19 18:31:03,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:03,709 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 [2022-07-19 18:31:03,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:03,713 INFO L225 Difference]: With dead ends: 1672 [2022-07-19 18:31:03,714 INFO L226 Difference]: Without dead ends: 969 [2022-07-19 18:31:03,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:03,716 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 3649 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:03,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3649 Valid, 654 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 18:31:03,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-07-19 18:31:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2022-07-19 18:31:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3231256599788808) internal successors, (1253), 968 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1253 transitions. [2022-07-19 18:31:03,754 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1253 transitions. Word has length 86 [2022-07-19 18:31:03,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:03,755 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1253 transitions. [2022-07-19 18:31:03,755 INFO L496 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) [2022-07-19 18:31:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1253 transitions. [2022-07-19 18:31:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 18:31:03,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:03,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:03,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:31:03,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:03,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:03,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1383981291, now seen corresponding path program 1 times [2022-07-19 18:31:03,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:03,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387553557] [2022-07-19 18:31:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:03,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:03,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387553557] [2022-07-19 18:31:03,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387553557] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:03,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:03,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:03,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346814620] [2022-07-19 18:31:03,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:03,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:03,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:03,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:03,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:03,849 INFO L87 Difference]: Start difference. First operand 969 states and 1253 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) [2022-07-19 18:31:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:04,593 INFO L93 Difference]: Finished difference Result 1742 states and 2296 transitions. [2022-07-19 18:31:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:04,594 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 [2022-07-19 18:31:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:04,598 INFO L225 Difference]: With dead ends: 1742 [2022-07-19 18:31:04,598 INFO L226 Difference]: Without dead ends: 1227 [2022-07-19 18:31:04,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:04,600 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 4267 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:04,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4267 Valid, 860 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-07-19 18:31:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1147. [2022-07-19 18:31:04,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1125 states have (on average 1.3884444444444444) internal successors, (1562), 1146 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1562 transitions. [2022-07-19 18:31:04,675 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1562 transitions. Word has length 86 [2022-07-19 18:31:04,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:04,676 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1562 transitions. [2022-07-19 18:31:04,676 INFO L496 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) [2022-07-19 18:31:04,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1562 transitions. [2022-07-19 18:31:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-19 18:31:04,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:04,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:04,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:31:04,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:04,682 INFO L85 PathProgramCache]: Analyzing trace with hash -100915319, now seen corresponding path program 1 times [2022-07-19 18:31:04,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:04,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194990596] [2022-07-19 18:31:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:04,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:04,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:04,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194990596] [2022-07-19 18:31:04,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194990596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:04,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:04,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:04,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511645451] [2022-07-19 18:31:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:04,777 INFO L87 Difference]: Start difference. First operand 1147 states and 1562 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) [2022-07-19 18:31:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:05,246 INFO L93 Difference]: Finished difference Result 1653 states and 2265 transitions. [2022-07-19 18:31:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:05,247 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 [2022-07-19 18:31:05,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:05,251 INFO L225 Difference]: With dead ends: 1653 [2022-07-19 18:31:05,251 INFO L226 Difference]: Without dead ends: 1022 [2022-07-19 18:31:05,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:05,253 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 2826 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:05,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2826 Valid, 528 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:31:05,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-07-19 18:31:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1022. [2022-07-19 18:31:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1000 states have (on average 1.407) internal successors, (1407), 1021 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1407 transitions. [2022-07-19 18:31:05,305 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1407 transitions. Word has length 87 [2022-07-19 18:31:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:05,306 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1407 transitions. [2022-07-19 18:31:05,306 INFO L496 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) [2022-07-19 18:31:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1407 transitions. [2022-07-19 18:31:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-19 18:31:05,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:05,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:05,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:31:05,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:05,310 INFO L85 PathProgramCache]: Analyzing trace with hash -881369892, now seen corresponding path program 1 times [2022-07-19 18:31:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:05,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771840870] [2022-07-19 18:31:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:05,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:05,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771840870] [2022-07-19 18:31:05,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771840870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:05,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:05,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:05,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491345074] [2022-07-19 18:31:05,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:05,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:05,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:05,386 INFO L87 Difference]: Start difference. First operand 1022 states and 1407 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) [2022-07-19 18:31:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:05,800 INFO L93 Difference]: Finished difference Result 1480 states and 2042 transitions. [2022-07-19 18:31:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:05,801 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 [2022-07-19 18:31:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:05,805 INFO L225 Difference]: With dead ends: 1480 [2022-07-19 18:31:05,805 INFO L226 Difference]: Without dead ends: 913 [2022-07-19 18:31:05,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:05,807 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2500 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:05,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 495 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:31:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-19 18:31:05,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2022-07-19 18:31:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4186307519640853) internal successors, (1264), 912 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1264 transitions. [2022-07-19 18:31:05,860 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1264 transitions. Word has length 88 [2022-07-19 18:31:05,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:05,860 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1264 transitions. [2022-07-19 18:31:05,860 INFO L496 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) [2022-07-19 18:31:05,861 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1264 transitions. [2022-07-19 18:31:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 18:31:05,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:05,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:05,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:31:05,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:05,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash -15019222, now seen corresponding path program 1 times [2022-07-19 18:31:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:05,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559859544] [2022-07-19 18:31:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:05,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:05,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:05,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559859544] [2022-07-19 18:31:05,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559859544] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:05,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:05,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:31:05,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639909368] [2022-07-19 18:31:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:05,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:31:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:05,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:31:05,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:31:05,975 INFO L87 Difference]: Start difference. First operand 913 states and 1264 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) [2022-07-19 18:31:06,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:06,508 INFO L93 Difference]: Finished difference Result 1331 states and 1842 transitions. [2022-07-19 18:31:06,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:31:06,509 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 [2022-07-19 18:31:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:06,512 INFO L225 Difference]: With dead ends: 1331 [2022-07-19 18:31:06,512 INFO L226 Difference]: Without dead ends: 905 [2022-07-19 18:31:06,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:31:06,514 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2353 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:06,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 420 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:31:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2022-07-19 18:31:06,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2022-07-19 18:31:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4190260475651189) internal successors, (1253), 904 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1253 transitions. [2022-07-19 18:31:06,563 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1253 transitions. Word has length 89 [2022-07-19 18:31:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:06,564 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1253 transitions. [2022-07-19 18:31:06,564 INFO L496 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) [2022-07-19 18:31:06,564 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1253 transitions. [2022-07-19 18:31:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-19 18:31:06,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:06,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:06,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:31:06,567 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:06,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1223915583, now seen corresponding path program 1 times [2022-07-19 18:31:06,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:06,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186151751] [2022-07-19 18:31:06,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:06,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:06,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:06,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186151751] [2022-07-19 18:31:06,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186151751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:06,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:06,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:06,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862905088] [2022-07-19 18:31:06,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:06,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:06,733 INFO L87 Difference]: Start difference. First operand 905 states and 1253 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2022-07-19 18:31:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:07,929 INFO L93 Difference]: Finished difference Result 1743 states and 2439 transitions. [2022-07-19 18:31:07,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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 [2022-07-19 18:31:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:07,935 INFO L225 Difference]: With dead ends: 1743 [2022-07-19 18:31:07,935 INFO L226 Difference]: Without dead ends: 1479 [2022-07-19 18:31:07,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:07,939 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 5400 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:07,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5400 Valid, 2123 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-07-19 18:31:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 905. [2022-07-19 18:31:08,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4178935447338619) internal successors, (1252), 904 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1252 transitions. [2022-07-19 18:31:08,030 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1252 transitions. Word has length 90 [2022-07-19 18:31:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:08,032 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1252 transitions. [2022-07-19 18:31:08,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2022-07-19 18:31:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1252 transitions. [2022-07-19 18:31:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-19 18:31:08,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:08,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:08,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:31:08,035 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:08,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:08,037 INFO L85 PathProgramCache]: Analyzing trace with hash -774148364, now seen corresponding path program 1 times [2022-07-19 18:31:08,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:08,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900326076] [2022-07-19 18:31:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:08,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900326076] [2022-07-19 18:31:08,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900326076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:08,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:08,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:08,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567829884] [2022-07-19 18:31:08,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:08,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:08,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:08,185 INFO L87 Difference]: Start difference. First operand 905 states and 1252 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2022-07-19 18:31:09,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:09,503 INFO L93 Difference]: Finished difference Result 1922 states and 2721 transitions. [2022-07-19 18:31:09,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:09,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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 [2022-07-19 18:31:09,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:09,509 INFO L225 Difference]: With dead ends: 1922 [2022-07-19 18:31:09,510 INFO L226 Difference]: Without dead ends: 1726 [2022-07-19 18:31:09,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:09,511 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3576 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:09,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 2584 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:09,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-07-19 18:31:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2022-07-19 18:31:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4167610419026047) internal successors, (1251), 904 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1251 transitions. [2022-07-19 18:31:09,580 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1251 transitions. Word has length 90 [2022-07-19 18:31:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:09,581 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1251 transitions. [2022-07-19 18:31:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 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) [2022-07-19 18:31:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1251 transitions. [2022-07-19 18:31:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-19 18:31:09,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:09,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:09,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:31:09,583 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:09,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1127184379, now seen corresponding path program 1 times [2022-07-19 18:31:09,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:09,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133524962] [2022-07-19 18:31:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:09,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:09,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133524962] [2022-07-19 18:31:09,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133524962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:09,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:09,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:31:09,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372766027] [2022-07-19 18:31:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:31:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:31:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:31:09,761 INFO L87 Difference]: Start difference. First operand 905 states and 1251 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2022-07-19 18:31:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:10,605 INFO L93 Difference]: Finished difference Result 1644 states and 2216 transitions. [2022-07-19 18:31:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 18:31:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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 [2022-07-19 18:31:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:10,610 INFO L225 Difference]: With dead ends: 1644 [2022-07-19 18:31:10,610 INFO L226 Difference]: Without dead ends: 1226 [2022-07-19 18:31:10,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:31:10,613 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 3578 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:10,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3578 Valid, 1375 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:10,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2022-07-19 18:31:10,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 905. [2022-07-19 18:31:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4156285390713477) internal successors, (1250), 904 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1250 transitions. [2022-07-19 18:31:10,695 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1250 transitions. Word has length 90 [2022-07-19 18:31:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:10,695 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1250 transitions. [2022-07-19 18:31:10,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 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) [2022-07-19 18:31:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1250 transitions. [2022-07-19 18:31:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:10,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:10,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:10,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:31:10,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:10,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:10,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1374831072, now seen corresponding path program 1 times [2022-07-19 18:31:10,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:10,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502032590] [2022-07-19 18:31:10,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:10,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:10,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:10,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502032590] [2022-07-19 18:31:10,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502032590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:10,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:10,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:10,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817179989] [2022-07-19 18:31:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:10,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:10,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:10,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:10,845 INFO L87 Difference]: Start difference. First operand 905 states and 1250 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:12,126 INFO L93 Difference]: Finished difference Result 1889 states and 2664 transitions. [2022-07-19 18:31:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:12,132 INFO L225 Difference]: With dead ends: 1889 [2022-07-19 18:31:12,132 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:12,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:12,134 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 4789 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:12,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4789 Valid, 2412 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:12,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4133635334088335) internal successors, (1248), 904 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:12,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1248 transitions. [2022-07-19 18:31:12,225 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1248 transitions. Word has length 92 [2022-07-19 18:31:12,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:12,226 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1248 transitions. [2022-07-19 18:31:12,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:12,226 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1248 transitions. [2022-07-19 18:31:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:12,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:12,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:31:12,229 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1581467239, now seen corresponding path program 1 times [2022-07-19 18:31:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:12,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988631052] [2022-07-19 18:31:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:12,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:12,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988631052] [2022-07-19 18:31:12,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988631052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:12,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:12,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:12,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215631188] [2022-07-19 18:31:12,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:12,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:12,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:12,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:12,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:12,348 INFO L87 Difference]: Start difference. First operand 905 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:13,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:13,557 INFO L93 Difference]: Finished difference Result 1970 states and 2780 transitions. [2022-07-19 18:31:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:13,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:13,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:13,562 INFO L225 Difference]: With dead ends: 1970 [2022-07-19 18:31:13,563 INFO L226 Difference]: Without dead ends: 1726 [2022-07-19 18:31:13,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:13,564 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 3533 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3533 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:13,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3533 Valid, 2619 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-07-19 18:31:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2022-07-19 18:31:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4110985277463193) internal successors, (1246), 904 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1246 transitions. [2022-07-19 18:31:13,648 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1246 transitions. Word has length 92 [2022-07-19 18:31:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:13,648 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1246 transitions. [2022-07-19 18:31:13,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:13,648 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1246 transitions. [2022-07-19 18:31:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:13,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:13,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:13,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:31:13,651 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:13,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:13,651 INFO L85 PathProgramCache]: Analyzing trace with hash 510204798, now seen corresponding path program 1 times [2022-07-19 18:31:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:13,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817111370] [2022-07-19 18:31:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:13,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:13,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:13,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817111370] [2022-07-19 18:31:13,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817111370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:13,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:13,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:13,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173549617] [2022-07-19 18:31:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:13,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:13,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:13,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:13,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:13,754 INFO L87 Difference]: Start difference. First operand 905 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:14,684 INFO L93 Difference]: Finished difference Result 1532 states and 2149 transitions. [2022-07-19 18:31:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:31:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:14,689 INFO L225 Difference]: With dead ends: 1532 [2022-07-19 18:31:14,689 INFO L226 Difference]: Without dead ends: 1132 [2022-07-19 18:31:14,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:31:14,691 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 3107 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:14,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 2070 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:31:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-19 18:31:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 905. [2022-07-19 18:31:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4088335220838053) internal successors, (1244), 904 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1244 transitions. [2022-07-19 18:31:14,801 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1244 transitions. Word has length 92 [2022-07-19 18:31:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:14,801 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1244 transitions. [2022-07-19 18:31:14,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1244 transitions. [2022-07-19 18:31:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:14,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:14,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:14,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:31:14,804 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -496473703, now seen corresponding path program 1 times [2022-07-19 18:31:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:14,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434140590] [2022-07-19 18:31:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:14,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:14,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434140590] [2022-07-19 18:31:14,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434140590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:14,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:14,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682223961] [2022-07-19 18:31:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:14,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:14,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:14,911 INFO L87 Difference]: Start difference. First operand 905 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:16,109 INFO L93 Difference]: Finished difference Result 1870 states and 2630 transitions. [2022-07-19 18:31:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:16,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:16,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:16,115 INFO L225 Difference]: With dead ends: 1870 [2022-07-19 18:31:16,115 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:16,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:16,116 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2274 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:16,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 2694 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:16,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.407701019252548) internal successors, (1243), 904 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1243 transitions. [2022-07-19 18:31:16,231 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1243 transitions. Word has length 92 [2022-07-19 18:31:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:16,231 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1243 transitions. [2022-07-19 18:31:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1243 transitions. [2022-07-19 18:31:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:16,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:16,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:16,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:31:16,233 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:16,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2138746040, now seen corresponding path program 1 times [2022-07-19 18:31:16,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:16,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021475891] [2022-07-19 18:31:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:16,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:16,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021475891] [2022-07-19 18:31:16,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021475891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:16,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:16,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599350808] [2022-07-19 18:31:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:16,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:16,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:16,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:16,355 INFO L87 Difference]: Start difference. First operand 905 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:17,561 INFO L93 Difference]: Finished difference Result 1865 states and 2624 transitions. [2022-07-19 18:31:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:17,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:17,568 INFO L225 Difference]: With dead ends: 1865 [2022-07-19 18:31:17,568 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:17,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:17,569 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 4577 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:17,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 2559 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:17,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.406568516421291) internal successors, (1242), 904 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1242 transitions. [2022-07-19 18:31:17,688 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1242 transitions. Word has length 92 [2022-07-19 18:31:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:17,688 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1242 transitions. [2022-07-19 18:31:17,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:17,689 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1242 transitions. [2022-07-19 18:31:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:17,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:17,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:17,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:31:17,691 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:17,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1951823708, now seen corresponding path program 1 times [2022-07-19 18:31:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:17,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449610213] [2022-07-19 18:31:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:17,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:17,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:17,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449610213] [2022-07-19 18:31:17,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449610213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:17,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:17,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821281205] [2022-07-19 18:31:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:17,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:17,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:17,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:17,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:17,822 INFO L87 Difference]: Start difference. First operand 905 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:19,081 INFO L93 Difference]: Finished difference Result 1870 states and 2628 transitions. [2022-07-19 18:31:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:19,087 INFO L225 Difference]: With dead ends: 1870 [2022-07-19 18:31:19,087 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:19,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:19,088 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 4526 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4526 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:19,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4526 Valid, 2589 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:19,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:19,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.405436013590034) internal successors, (1241), 904 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1241 transitions. [2022-07-19 18:31:19,197 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1241 transitions. Word has length 92 [2022-07-19 18:31:19,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:19,198 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1241 transitions. [2022-07-19 18:31:19,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1241 transitions. [2022-07-19 18:31:19,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-19 18:31:19,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:19,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:19,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:31:19,200 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:19,200 INFO L85 PathProgramCache]: Analyzing trace with hash -761353428, now seen corresponding path program 1 times [2022-07-19 18:31:19,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:19,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719942151] [2022-07-19 18:31:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:19,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:19,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:19,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719942151] [2022-07-19 18:31:19,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719942151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:19,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:19,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:19,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989831278] [2022-07-19 18:31:19,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:19,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:19,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:19,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:19,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:19,310 INFO L87 Difference]: Start difference. First operand 905 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:20,619 INFO L93 Difference]: Finished difference Result 1936 states and 2723 transitions. [2022-07-19 18:31:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-19 18:31:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:20,624 INFO L225 Difference]: With dead ends: 1936 [2022-07-19 18:31:20,624 INFO L226 Difference]: Without dead ends: 1726 [2022-07-19 18:31:20,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:20,625 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 2023 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:20,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 3322 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-07-19 18:31:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2022-07-19 18:31:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.404303510758777) internal successors, (1240), 904 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:20,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1240 transitions. [2022-07-19 18:31:20,739 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1240 transitions. Word has length 92 [2022-07-19 18:31:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:20,739 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1240 transitions. [2022-07-19 18:31:20,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:20,739 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1240 transitions. [2022-07-19 18:31:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:20,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:20,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:20,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:31:20,742 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:20,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:20,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1776369767, now seen corresponding path program 1 times [2022-07-19 18:31:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:20,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558913950] [2022-07-19 18:31:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:20,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:20,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:20,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558913950] [2022-07-19 18:31:20,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558913950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:20,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:20,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:20,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217707731] [2022-07-19 18:31:20,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:20,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:20,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:20,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:20,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:20,858 INFO L87 Difference]: Start difference. First operand 905 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:22,099 INFO L93 Difference]: Finished difference Result 1901 states and 2667 transitions. [2022-07-19 18:31:22,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:22,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:22,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:22,104 INFO L225 Difference]: With dead ends: 1901 [2022-07-19 18:31:22,104 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:22,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:31:22,105 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 4653 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4653 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:22,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4653 Valid, 2635 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4020385050962627) internal successors, (1238), 904 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1238 transitions. [2022-07-19 18:31:22,220 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1238 transitions. Word has length 94 [2022-07-19 18:31:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:22,220 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1238 transitions. [2022-07-19 18:31:22,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1238 transitions. [2022-07-19 18:31:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:22,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:22,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:22,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:31:22,223 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:22,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:22,223 INFO L85 PathProgramCache]: Analyzing trace with hash -583554037, now seen corresponding path program 1 times [2022-07-19 18:31:22,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:22,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117223304] [2022-07-19 18:31:22,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:22,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:22,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:22,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117223304] [2022-07-19 18:31:22,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117223304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:22,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:22,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:22,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84223162] [2022-07-19 18:31:22,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:22,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:22,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:22,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:22,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:22,343 INFO L87 Difference]: Start difference. First operand 905 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:23,687 INFO L93 Difference]: Finished difference Result 1843 states and 2578 transitions. [2022-07-19 18:31:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:23,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:23,692 INFO L225 Difference]: With dead ends: 1843 [2022-07-19 18:31:23,693 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:23,693 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:23,694 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3844 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3844 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:23,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3844 Valid, 3223 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 905. [2022-07-19 18:31:23,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3997734994337485) internal successors, (1236), 904 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:23,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1236 transitions. [2022-07-19 18:31:23,819 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1236 transitions. Word has length 94 [2022-07-19 18:31:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:23,819 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1236 transitions. [2022-07-19 18:31:23,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:23,820 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1236 transitions. [2022-07-19 18:31:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:23,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:23,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:23,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:31:23,822 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:23,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:23,823 INFO L85 PathProgramCache]: Analyzing trace with hash -912166993, now seen corresponding path program 1 times [2022-07-19 18:31:23,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:23,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836021533] [2022-07-19 18:31:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:23,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:23,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:23,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836021533] [2022-07-19 18:31:23,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836021533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:23,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:23,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:23,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586893801] [2022-07-19 18:31:23,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:23,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:23,945 INFO L87 Difference]: Start difference. First operand 905 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:25,171 INFO L93 Difference]: Finished difference Result 2002 states and 2801 transitions. [2022-07-19 18:31:25,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:25,179 INFO L225 Difference]: With dead ends: 2002 [2022-07-19 18:31:25,179 INFO L226 Difference]: Without dead ends: 1726 [2022-07-19 18:31:25,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:25,180 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 3988 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:25,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3988 Valid, 3106 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-07-19 18:31:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2022-07-19 18:31:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3975084937712345) internal successors, (1234), 904 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1234 transitions. [2022-07-19 18:31:25,311 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1234 transitions. Word has length 94 [2022-07-19 18:31:25,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:25,312 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1234 transitions. [2022-07-19 18:31:25,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:25,312 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1234 transitions. [2022-07-19 18:31:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:25,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:25,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:31:25,314 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:25,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash 108575604, now seen corresponding path program 1 times [2022-07-19 18:31:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:25,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702337684] [2022-07-19 18:31:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:25,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:25,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702337684] [2022-07-19 18:31:25,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702337684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:25,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:25,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:25,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292974592] [2022-07-19 18:31:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:25,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:25,449 INFO L87 Difference]: Start difference. First operand 905 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:26,848 INFO L93 Difference]: Finished difference Result 1839 states and 2568 transitions. [2022-07-19 18:31:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:26,852 INFO L225 Difference]: With dead ends: 1839 [2022-07-19 18:31:26,852 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:26,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:26,854 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3834 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:26,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 3225 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:26,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 905. [2022-07-19 18:31:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3952434881087203) internal successors, (1232), 904 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1232 transitions. [2022-07-19 18:31:26,970 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1232 transitions. Word has length 94 [2022-07-19 18:31:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:26,971 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1232 transitions. [2022-07-19 18:31:26,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1232 transitions. [2022-07-19 18:31:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:26,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:26,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:26,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:31:26,973 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:26,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash -905490814, now seen corresponding path program 1 times [2022-07-19 18:31:26,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:26,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838900408] [2022-07-19 18:31:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:27,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:27,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:27,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838900408] [2022-07-19 18:31:27,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838900408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:27,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:27,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:27,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728077351] [2022-07-19 18:31:27,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:27,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:27,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:27,082 INFO L87 Difference]: Start difference. First operand 905 states and 1232 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:28,343 INFO L93 Difference]: Finished difference Result 1889 states and 2638 transitions. [2022-07-19 18:31:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:28,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:28,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:28,346 INFO L225 Difference]: With dead ends: 1889 [2022-07-19 18:31:28,346 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:31:28,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:28,348 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 2938 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:28,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 3152 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:31:28,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:31:28,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3929784824462061) internal successors, (1230), 904 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:28,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1230 transitions. [2022-07-19 18:31:28,455 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1230 transitions. Word has length 94 [2022-07-19 18:31:28,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:28,455 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1230 transitions. [2022-07-19 18:31:28,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:28,455 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1230 transitions. [2022-07-19 18:31:28,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:28,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:28,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:28,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:31:28,457 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:28,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1059388859, now seen corresponding path program 1 times [2022-07-19 18:31:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:28,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393479763] [2022-07-19 18:31:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:28,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:28,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393479763] [2022-07-19 18:31:28,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393479763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:28,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:28,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:28,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284338536] [2022-07-19 18:31:28,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:28,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:28,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:28,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:28,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:28,648 INFO L87 Difference]: Start difference. First operand 905 states and 1230 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:31,126 INFO L93 Difference]: Finished difference Result 2737 states and 3891 transitions. [2022-07-19 18:31:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:31,130 INFO L225 Difference]: With dead ends: 2737 [2022-07-19 18:31:31,130 INFO L226 Difference]: Without dead ends: 2573 [2022-07-19 18:31:31,131 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:31,132 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 7169 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7169 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7169 Valid, 3616 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:31:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2022-07-19 18:31:31,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 913. [2022-07-19 18:31:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3894500561167227) internal successors, (1238), 912 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1238 transitions. [2022-07-19 18:31:31,253 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1238 transitions. Word has length 94 [2022-07-19 18:31:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:31,254 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1238 transitions. [2022-07-19 18:31:31,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:31,254 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1238 transitions. [2022-07-19 18:31:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:31,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:31,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:31,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 18:31:31,256 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash 389206872, now seen corresponding path program 1 times [2022-07-19 18:31:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:31,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230167201] [2022-07-19 18:31:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:31,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:31,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:31,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230167201] [2022-07-19 18:31:31,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230167201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:31,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:31,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681635122] [2022-07-19 18:31:31,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:31,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:31,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:31,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:31,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:31,374 INFO L87 Difference]: Start difference. First operand 913 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:32,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:32,827 INFO L93 Difference]: Finished difference Result 1837 states and 2561 transitions. [2022-07-19 18:31:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:32,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:32,829 INFO L225 Difference]: With dead ends: 1837 [2022-07-19 18:31:32,829 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:32,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:32,830 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 3796 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3796 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:32,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3796 Valid, 3292 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 913. [2022-07-19 18:31:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.387205387205387) internal successors, (1236), 912 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1236 transitions. [2022-07-19 18:31:32,945 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1236 transitions. Word has length 94 [2022-07-19 18:31:32,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:32,946 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1236 transitions. [2022-07-19 18:31:32,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1236 transitions. [2022-07-19 18:31:32,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:32,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:32,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:32,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 18:31:32,948 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:32,948 INFO L85 PathProgramCache]: Analyzing trace with hash -66481708, now seen corresponding path program 1 times [2022-07-19 18:31:32,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:32,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395366977] [2022-07-19 18:31:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:32,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:33,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:33,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395366977] [2022-07-19 18:31:33,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395366977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:33,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:33,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:33,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325794446] [2022-07-19 18:31:33,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:33,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:33,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:33,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:33,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:33,120 INFO L87 Difference]: Start difference. First operand 913 states and 1236 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:35,597 INFO L93 Difference]: Finished difference Result 2725 states and 3869 transitions. [2022-07-19 18:31:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:35,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:35,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:35,600 INFO L225 Difference]: With dead ends: 2725 [2022-07-19 18:31:35,601 INFO L226 Difference]: Without dead ends: 2567 [2022-07-19 18:31:35,601 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:35,602 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 7256 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7256 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 3402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:35,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7256 Valid, 3210 Invalid, 3402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:31:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-07-19 18:31:35,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 917. [2022-07-19 18:31:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3854748603351956) internal successors, (1240), 916 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1240 transitions. [2022-07-19 18:31:35,734 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1240 transitions. Word has length 94 [2022-07-19 18:31:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:35,734 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1240 transitions. [2022-07-19 18:31:35,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1240 transitions. [2022-07-19 18:31:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:35,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:35,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 18:31:35,736 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:35,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:35,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1010519460, now seen corresponding path program 1 times [2022-07-19 18:31:35,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:35,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266771929] [2022-07-19 18:31:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:35,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:35,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:35,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266771929] [2022-07-19 18:31:35,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266771929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:35,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:35,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844988672] [2022-07-19 18:31:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:35,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:35,848 INFO L87 Difference]: Start difference. First operand 917 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:37,370 INFO L93 Difference]: Finished difference Result 1829 states and 2547 transitions. [2022-07-19 18:31:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:37,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:37,373 INFO L225 Difference]: With dead ends: 1829 [2022-07-19 18:31:37,373 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:37,373 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:37,374 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 3709 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:37,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 3478 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:31:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:37,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 917. [2022-07-19 18:31:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3843575418994414) internal successors, (1239), 916 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:37,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1239 transitions. [2022-07-19 18:31:37,495 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1239 transitions. Word has length 94 [2022-07-19 18:31:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:37,495 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1239 transitions. [2022-07-19 18:31:37,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:37,496 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1239 transitions. [2022-07-19 18:31:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:37,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:37,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:37,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 18:31:37,497 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash -4191139, now seen corresponding path program 1 times [2022-07-19 18:31:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:37,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895374164] [2022-07-19 18:31:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:37,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:37,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:37,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895374164] [2022-07-19 18:31:37,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895374164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:37,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:37,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:37,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917990029] [2022-07-19 18:31:37,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:37,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:37,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:37,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:37,684 INFO L87 Difference]: Start difference. First operand 917 states and 1239 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:40,274 INFO L93 Difference]: Finished difference Result 2717 states and 3861 transitions. [2022-07-19 18:31:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:40,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:40,278 INFO L225 Difference]: With dead ends: 2717 [2022-07-19 18:31:40,278 INFO L226 Difference]: Without dead ends: 2563 [2022-07-19 18:31:40,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:31:40,279 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 6371 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6371 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 3596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:40,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6371 Valid, 3400 Invalid, 3596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:31:40,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-07-19 18:31:40,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 921. [2022-07-19 18:31:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.382647385984427) internal successors, (1243), 920 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1243 transitions. [2022-07-19 18:31:40,447 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1243 transitions. Word has length 94 [2022-07-19 18:31:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:40,447 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1243 transitions. [2022-07-19 18:31:40,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1243 transitions. [2022-07-19 18:31:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:40,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:40,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:40,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 18:31:40,450 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1834155361, now seen corresponding path program 1 times [2022-07-19 18:31:40,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:40,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472040203] [2022-07-19 18:31:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:40,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:40,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472040203] [2022-07-19 18:31:40,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472040203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:40,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:40,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:31:40,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099458634] [2022-07-19 18:31:40,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:40,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:31:40,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:40,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:31:40,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:31:40,620 INFO L87 Difference]: Start difference. First operand 921 states and 1243 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:43,346 INFO L93 Difference]: Finished difference Result 2725 states and 3868 transitions. [2022-07-19 18:31:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:31:43,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:43,351 INFO L225 Difference]: With dead ends: 2725 [2022-07-19 18:31:43,351 INFO L226 Difference]: Without dead ends: 2567 [2022-07-19 18:31:43,352 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:43,353 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 7264 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7264 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:43,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7264 Valid, 3833 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 3171 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 18:31:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-07-19 18:31:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 925. [2022-07-19 18:31:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.380952380952381) internal successors, (1247), 924 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1247 transitions. [2022-07-19 18:31:43,535 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1247 transitions. Word has length 94 [2022-07-19 18:31:43,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:43,535 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1247 transitions. [2022-07-19 18:31:43,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:43,535 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1247 transitions. [2022-07-19 18:31:43,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:43,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:43,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:43,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 18:31:43,537 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:43,537 INFO L85 PathProgramCache]: Analyzing trace with hash -472603347, now seen corresponding path program 1 times [2022-07-19 18:31:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:43,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262330361] [2022-07-19 18:31:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:43,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:43,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262330361] [2022-07-19 18:31:43,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262330361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:43,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:43,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:43,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634282155] [2022-07-19 18:31:43,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:43,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:43,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:43,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:43,648 INFO L87 Difference]: Start difference. First operand 925 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:45,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:45,207 INFO L93 Difference]: Finished difference Result 1829 states and 2544 transitions. [2022-07-19 18:31:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:45,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:45,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:45,214 INFO L225 Difference]: With dead ends: 1829 [2022-07-19 18:31:45,214 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:45,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:45,215 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3827 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:45,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 3203 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 925. [2022-07-19 18:31:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.37984496124031) internal successors, (1246), 924 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1246 transitions. [2022-07-19 18:31:45,422 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1246 transitions. Word has length 94 [2022-07-19 18:31:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1246 transitions. [2022-07-19 18:31:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1246 transitions. [2022-07-19 18:31:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:45,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:45,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:45,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 18:31:45,425 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:45,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1387862169, now seen corresponding path program 1 times [2022-07-19 18:31:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:45,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088577760] [2022-07-19 18:31:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:45,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:45,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088577760] [2022-07-19 18:31:45,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088577760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:45,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:45,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:45,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668717106] [2022-07-19 18:31:45,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:45,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:45,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:45,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:45,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:45,546 INFO L87 Difference]: Start difference. First operand 925 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:46,921 INFO L93 Difference]: Finished difference Result 1903 states and 2639 transitions. [2022-07-19 18:31:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:46,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:46,924 INFO L225 Difference]: With dead ends: 1903 [2022-07-19 18:31:46,924 INFO L226 Difference]: Without dead ends: 1723 [2022-07-19 18:31:46,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:46,925 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 3115 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3115 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:46,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 3097 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2022-07-19 18:31:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 925. [2022-07-19 18:31:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3787375415282392) internal successors, (1245), 924 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1245 transitions. [2022-07-19 18:31:47,076 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1245 transitions. Word has length 94 [2022-07-19 18:31:47,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:47,076 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1245 transitions. [2022-07-19 18:31:47,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1245 transitions. [2022-07-19 18:31:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-19 18:31:47,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:47,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:47,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 18:31:47,077 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1262668072, now seen corresponding path program 1 times [2022-07-19 18:31:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:47,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599467243] [2022-07-19 18:31:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:47,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:47,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599467243] [2022-07-19 18:31:47,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599467243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:47,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:47,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:47,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682929221] [2022-07-19 18:31:47,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:47,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:47,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:47,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:47,200 INFO L87 Difference]: Start difference. First operand 925 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:48,710 INFO L93 Difference]: Finished difference Result 1833 states and 2546 transitions. [2022-07-19 18:31:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:48,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-19 18:31:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:48,713 INFO L225 Difference]: With dead ends: 1833 [2022-07-19 18:31:48,713 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:48,714 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:48,715 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 3781 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 2550 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3781 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:48,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3781 Valid, 3303 Invalid, 2647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2550 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:48,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 925. [2022-07-19 18:31:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3776301218161684) internal successors, (1244), 924 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1244 transitions. [2022-07-19 18:31:48,936 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1244 transitions. Word has length 94 [2022-07-19 18:31:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:48,937 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1244 transitions. [2022-07-19 18:31:48,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1244 transitions. [2022-07-19 18:31:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:31:48,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:48,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:48,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-19 18:31:48,939 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:48,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:48,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1316548243, now seen corresponding path program 1 times [2022-07-19 18:31:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:48,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775328950] [2022-07-19 18:31:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:48,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:49,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:49,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775328950] [2022-07-19 18:31:49,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775328950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:49,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:49,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:49,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138810399] [2022-07-19 18:31:49,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:49,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:49,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:49,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:49,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:49,038 INFO L87 Difference]: Start difference. First operand 925 states and 1244 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) [2022-07-19 18:31:50,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:50,493 INFO L93 Difference]: Finished difference Result 1839 states and 2553 transitions. [2022-07-19 18:31:50,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:50,493 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 [2022-07-19 18:31:50,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:50,495 INFO L225 Difference]: With dead ends: 1839 [2022-07-19 18:31:50,495 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:50,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:50,496 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 3066 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:50,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3066 Valid, 2869 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 917. [2022-07-19 18:31:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3787709497206704) internal successors, (1234), 916 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1234 transitions. [2022-07-19 18:31:50,650 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1234 transitions. Word has length 95 [2022-07-19 18:31:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:50,650 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1234 transitions. [2022-07-19 18:31:50,650 INFO L496 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) [2022-07-19 18:31:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1234 transitions. [2022-07-19 18:31:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:31:50,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:50,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:50,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-19 18:31:50,652 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2144015537, now seen corresponding path program 1 times [2022-07-19 18:31:50,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:50,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321862210] [2022-07-19 18:31:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:50,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:50,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321862210] [2022-07-19 18:31:50,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321862210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:50,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:50,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401919406] [2022-07-19 18:31:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:50,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:50,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:50,761 INFO L87 Difference]: Start difference. First operand 917 states and 1234 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) [2022-07-19 18:31:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:52,252 INFO L93 Difference]: Finished difference Result 1833 states and 2542 transitions. [2022-07-19 18:31:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:52,253 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 [2022-07-19 18:31:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:52,254 INFO L225 Difference]: With dead ends: 1833 [2022-07-19 18:31:52,254 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:52,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:52,255 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 3999 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:52,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 2905 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:52,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 913. [2022-07-19 18:31:52,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3793490460157127) internal successors, (1229), 912 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1229 transitions. [2022-07-19 18:31:52,447 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1229 transitions. Word has length 95 [2022-07-19 18:31:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:52,447 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1229 transitions. [2022-07-19 18:31:52,447 INFO L496 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) [2022-07-19 18:31:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1229 transitions. [2022-07-19 18:31:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:31:52,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:52,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:52,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-19 18:31:52,448 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:52,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1517880925, now seen corresponding path program 1 times [2022-07-19 18:31:52,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:52,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659372560] [2022-07-19 18:31:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:52,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:52,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659372560] [2022-07-19 18:31:52,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659372560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:52,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:52,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995082581] [2022-07-19 18:31:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:52,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:52,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:52,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:52,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:52,549 INFO L87 Difference]: Start difference. First operand 913 states and 1229 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) [2022-07-19 18:31:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:54,025 INFO L93 Difference]: Finished difference Result 1829 states and 2538 transitions. [2022-07-19 18:31:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:54,025 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 [2022-07-19 18:31:54,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:54,027 INFO L225 Difference]: With dead ends: 1829 [2022-07-19 18:31:54,027 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:54,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:54,027 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 3025 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:54,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3025 Valid, 2919 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:54,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 909. [2022-07-19 18:31:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3799323562570462) internal successors, (1224), 908 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1224 transitions. [2022-07-19 18:31:54,174 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1224 transitions. Word has length 95 [2022-07-19 18:31:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:54,174 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1224 transitions. [2022-07-19 18:31:54,174 INFO L496 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) [2022-07-19 18:31:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1224 transitions. [2022-07-19 18:31:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:31:54,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:54,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:54,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-19 18:31:54,176 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:54,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1778839813, now seen corresponding path program 1 times [2022-07-19 18:31:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:54,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358507721] [2022-07-19 18:31:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:54,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:54,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:54,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:54,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358507721] [2022-07-19 18:31:54,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358507721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:54,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:54,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542546794] [2022-07-19 18:31:54,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:54,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:54,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:54,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:54,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:54,301 INFO L87 Difference]: Start difference. First operand 909 states and 1224 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) [2022-07-19 18:31:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:55,926 INFO L93 Difference]: Finished difference Result 1828 states and 2536 transitions. [2022-07-19 18:31:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:55,926 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 [2022-07-19 18:31:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:55,929 INFO L225 Difference]: With dead ends: 1828 [2022-07-19 18:31:55,929 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:55,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:55,930 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 3725 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 2605 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3725 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:55,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3725 Valid, 3392 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2605 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:56,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 909. [2022-07-19 18:31:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3788049605411499) internal successors, (1223), 908 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1223 transitions. [2022-07-19 18:31:56,096 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1223 transitions. Word has length 95 [2022-07-19 18:31:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:56,096 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1223 transitions. [2022-07-19 18:31:56,096 INFO L496 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) [2022-07-19 18:31:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1223 transitions. [2022-07-19 18:31:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-19 18:31:56,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:56,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:56,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-19 18:31:56,097 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:56,097 INFO L85 PathProgramCache]: Analyzing trace with hash -413193078, now seen corresponding path program 1 times [2022-07-19 18:31:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99251530] [2022-07-19 18:31:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:56,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:56,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99251530] [2022-07-19 18:31:56,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99251530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:56,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:56,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:56,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674982994] [2022-07-19 18:31:56,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:56,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:56,201 INFO L87 Difference]: Start difference. First operand 909 states and 1223 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) [2022-07-19 18:31:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:57,642 INFO L93 Difference]: Finished difference Result 1833 states and 2540 transitions. [2022-07-19 18:31:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:57,642 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 [2022-07-19 18:31:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:57,644 INFO L225 Difference]: With dead ends: 1833 [2022-07-19 18:31:57,644 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:57,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:31:57,645 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 3910 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3910 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:57,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3910 Valid, 2957 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:31:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:57,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 905. [2022-07-19 18:31:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3793884484711212) internal successors, (1218), 904 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1218 transitions. [2022-07-19 18:31:57,838 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1218 transitions. Word has length 95 [2022-07-19 18:31:57,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:57,838 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1218 transitions. [2022-07-19 18:31:57,839 INFO L496 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) [2022-07-19 18:31:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1218 transitions. [2022-07-19 18:31:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:31:57,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:57,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:57,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-19 18:31:57,840 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1915466444, now seen corresponding path program 1 times [2022-07-19 18:31:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:57,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908896826] [2022-07-19 18:31:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:57,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:57,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908896826] [2022-07-19 18:31:57,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908896826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:57,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:57,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:57,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071492547] [2022-07-19 18:31:57,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:57,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:57,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:57,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:57,957 INFO L87 Difference]: Start difference. First operand 905 states and 1218 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) [2022-07-19 18:31:59,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:31:59,515 INFO L93 Difference]: Finished difference Result 1845 states and 2554 transitions. [2022-07-19 18:31:59,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:31:59,516 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 [2022-07-19 18:31:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:31:59,517 INFO L225 Difference]: With dead ends: 1845 [2022-07-19 18:31:59,517 INFO L226 Difference]: Without dead ends: 1675 [2022-07-19 18:31:59,518 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:31:59,518 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 4083 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:31:59,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 3277 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:31:59,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-07-19 18:31:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 905. [2022-07-19 18:31:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.377123442808607) internal successors, (1216), 904 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:31:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1216 transitions. [2022-07-19 18:31:59,696 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1216 transitions. Word has length 96 [2022-07-19 18:31:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:31:59,697 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1216 transitions. [2022-07-19 18:31:59,697 INFO L496 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) [2022-07-19 18:31:59,697 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1216 transitions. [2022-07-19 18:31:59,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:31:59,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:31:59,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:31:59,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-19 18:31:59,699 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:31:59,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:31:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 747746075, now seen corresponding path program 1 times [2022-07-19 18:31:59,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:31:59,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099257254] [2022-07-19 18:31:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:31:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:31:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:31:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:31:59,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:31:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099257254] [2022-07-19 18:31:59,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099257254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:31:59,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:31:59,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:31:59,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102672276] [2022-07-19 18:31:59,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:31:59,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:31:59,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:31:59,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:31:59,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:31:59,808 INFO L87 Difference]: Start difference. First operand 905 states and 1216 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) [2022-07-19 18:32:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:01,368 INFO L93 Difference]: Finished difference Result 1781 states and 2452 transitions. [2022-07-19 18:32:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:01,368 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 [2022-07-19 18:32:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:01,370 INFO L225 Difference]: With dead ends: 1781 [2022-07-19 18:32:01,370 INFO L226 Difference]: Without dead ends: 1627 [2022-07-19 18:32:01,371 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:01,371 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 3721 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3721 Valid, 3046 Invalid, 2604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-07-19 18:32:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 905. [2022-07-19 18:32:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3748584371460928) internal successors, (1214), 904 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1214 transitions. [2022-07-19 18:32:01,567 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1214 transitions. Word has length 96 [2022-07-19 18:32:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:01,567 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1214 transitions. [2022-07-19 18:32:01,567 INFO L496 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) [2022-07-19 18:32:01,567 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1214 transitions. [2022-07-19 18:32:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:01,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:01,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:01,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-19 18:32:01,569 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:01,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1896440013, now seen corresponding path program 1 times [2022-07-19 18:32:01,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:01,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017523561] [2022-07-19 18:32:01,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:01,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:01,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017523561] [2022-07-19 18:32:01,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017523561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:01,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:01,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407172061] [2022-07-19 18:32:01,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:01,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:01,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:01,673 INFO L87 Difference]: Start difference. First operand 905 states and 1214 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) [2022-07-19 18:32:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:03,310 INFO L93 Difference]: Finished difference Result 1909 states and 2635 transitions. [2022-07-19 18:32:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:03,311 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 [2022-07-19 18:32:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:03,312 INFO L225 Difference]: With dead ends: 1909 [2022-07-19 18:32:03,313 INFO L226 Difference]: Without dead ends: 1699 [2022-07-19 18:32:03,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:32:03,313 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 3823 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:03,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 3120 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-07-19 18:32:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2022-07-19 18:32:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3725934314835788) internal successors, (1212), 904 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1212 transitions. [2022-07-19 18:32:03,484 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1212 transitions. Word has length 96 [2022-07-19 18:32:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:03,484 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1212 transitions. [2022-07-19 18:32:03,484 INFO L496 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) [2022-07-19 18:32:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1212 transitions. [2022-07-19 18:32:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:03,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:03,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:03,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-19 18:32:03,486 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:03,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015970, now seen corresponding path program 1 times [2022-07-19 18:32:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:03,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593933842] [2022-07-19 18:32:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:03,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:03,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:03,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593933842] [2022-07-19 18:32:03,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593933842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:03,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:03,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:03,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115525513] [2022-07-19 18:32:03,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:03,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:03,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:03,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:03,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:03,647 INFO L87 Difference]: Start difference. First operand 905 states and 1212 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:06,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:06,465 INFO L93 Difference]: Finished difference Result 2749 states and 3882 transitions. [2022-07-19 18:32:06,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:06,466 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:06,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:06,468 INFO L225 Difference]: With dead ends: 2749 [2022-07-19 18:32:06,468 INFO L226 Difference]: Without dead ends: 2579 [2022-07-19 18:32:06,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:06,469 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 7762 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7762 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:06,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7762 Valid, 3325 Invalid, 3328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [709 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:06,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2022-07-19 18:32:06,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 913. [2022-07-19 18:32:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3692480359147026) internal successors, (1220), 912 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1220 transitions. [2022-07-19 18:32:06,655 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1220 transitions. Word has length 96 [2022-07-19 18:32:06,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:06,655 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1220 transitions. [2022-07-19 18:32:06,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1220 transitions. [2022-07-19 18:32:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:06,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:06,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:06,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-19 18:32:06,657 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:06,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196549, now seen corresponding path program 1 times [2022-07-19 18:32:06,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:06,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073754806] [2022-07-19 18:32:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:06,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:06,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:06,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073754806] [2022-07-19 18:32:06,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073754806] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:06,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:06,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102607064] [2022-07-19 18:32:06,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:06,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:06,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:06,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:06,784 INFO L87 Difference]: Start difference. First operand 913 states and 1220 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) [2022-07-19 18:32:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:08,424 INFO L93 Difference]: Finished difference Result 1789 states and 2456 transitions. [2022-07-19 18:32:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:08,425 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 [2022-07-19 18:32:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:08,427 INFO L225 Difference]: With dead ends: 1789 [2022-07-19 18:32:08,427 INFO L226 Difference]: Without dead ends: 1635 [2022-07-19 18:32:08,427 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:08,428 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 3618 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:08,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 3248 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-07-19 18:32:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 913. [2022-07-19 18:32:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.367003367003367) internal successors, (1218), 912 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1218 transitions. [2022-07-19 18:32:08,610 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1218 transitions. Word has length 96 [2022-07-19 18:32:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:08,611 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1218 transitions. [2022-07-19 18:32:08,611 INFO L496 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) [2022-07-19 18:32:08,611 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1218 transitions. [2022-07-19 18:32:08,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:08,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:08,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:08,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-19 18:32:08,613 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:08,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 190488080, now seen corresponding path program 1 times [2022-07-19 18:32:08,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:08,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191082389] [2022-07-19 18:32:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:08,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:08,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191082389] [2022-07-19 18:32:08,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191082389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:08,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:08,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:08,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617854975] [2022-07-19 18:32:08,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:08,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:08,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:08,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:08,788 INFO L87 Difference]: Start difference. First operand 913 states and 1218 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:11,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:11,656 INFO L93 Difference]: Finished difference Result 2517 states and 3527 transitions. [2022-07-19 18:32:11,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:11,656 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:11,658 INFO L225 Difference]: With dead ends: 2517 [2022-07-19 18:32:11,658 INFO L226 Difference]: Without dead ends: 2363 [2022-07-19 18:32:11,659 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:11,659 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 5770 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5770 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 3563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:11,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5770 Valid, 3268 Invalid, 3563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [781 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2022-07-19 18:32:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 921. [2022-07-19 18:32:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.363737486095662) internal successors, (1226), 920 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1226 transitions. [2022-07-19 18:32:11,868 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1226 transitions. Word has length 96 [2022-07-19 18:32:11,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:11,868 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1226 transitions. [2022-07-19 18:32:11,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1226 transitions. [2022-07-19 18:32:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:11,869 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:11,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:11,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-19 18:32:11,870 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1908305338, now seen corresponding path program 1 times [2022-07-19 18:32:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:11,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107541969] [2022-07-19 18:32:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:11,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:11,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:11,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107541969] [2022-07-19 18:32:11,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107541969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:11,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:11,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:11,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876571106] [2022-07-19 18:32:11,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:11,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:11,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:11,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:11,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:11,970 INFO L87 Difference]: Start difference. First operand 921 states and 1226 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) [2022-07-19 18:32:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:13,697 INFO L93 Difference]: Finished difference Result 1785 states and 2447 transitions. [2022-07-19 18:32:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:13,697 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 [2022-07-19 18:32:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:13,700 INFO L225 Difference]: With dead ends: 1785 [2022-07-19 18:32:13,700 INFO L226 Difference]: Without dead ends: 1635 [2022-07-19 18:32:13,700 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:13,701 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 3710 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3710 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:13,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3710 Valid, 3030 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-07-19 18:32:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 921. [2022-07-19 18:32:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3615127919911012) internal successors, (1224), 920 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1224 transitions. [2022-07-19 18:32:13,983 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1224 transitions. Word has length 96 [2022-07-19 18:32:13,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:13,984 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1224 transitions. [2022-07-19 18:32:13,984 INFO L496 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) [2022-07-19 18:32:13,984 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1224 transitions. [2022-07-19 18:32:13,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:13,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:13,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:13,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-19 18:32:13,986 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1460404217, now seen corresponding path program 1 times [2022-07-19 18:32:13,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948907862] [2022-07-19 18:32:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:14,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:14,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948907862] [2022-07-19 18:32:14,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948907862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:14,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:14,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:14,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531847719] [2022-07-19 18:32:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:14,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:14,152 INFO L87 Difference]: Start difference. First operand 921 states and 1224 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:17,306 INFO L93 Difference]: Finished difference Result 2597 states and 3638 transitions. [2022-07-19 18:32:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:17,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:17,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:17,309 INFO L225 Difference]: With dead ends: 2597 [2022-07-19 18:32:17,309 INFO L226 Difference]: Without dead ends: 2580 [2022-07-19 18:32:17,310 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:17,310 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 6829 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6829 SdHoareTripleChecker+Valid, 3794 SdHoareTripleChecker+Invalid, 3709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6829 Valid, 3794 Invalid, 3709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:32:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-07-19 18:32:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 929. [2022-07-19 18:32:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 907 states have (on average 1.35832414553473) internal successors, (1232), 928 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1232 transitions. [2022-07-19 18:32:17,540 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1232 transitions. Word has length 96 [2022-07-19 18:32:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:17,541 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1232 transitions. [2022-07-19 18:32:17,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1232 transitions. [2022-07-19 18:32:17,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:17,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:17,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:17,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-19 18:32:17,543 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:17,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:17,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1202808302, now seen corresponding path program 1 times [2022-07-19 18:32:17,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:17,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547504882] [2022-07-19 18:32:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:17,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:17,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547504882] [2022-07-19 18:32:17,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547504882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:17,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:17,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:17,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197530764] [2022-07-19 18:32:17,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:17,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:17,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:17,653 INFO L87 Difference]: Start difference. First operand 929 states and 1232 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) [2022-07-19 18:32:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:19,410 INFO L93 Difference]: Finished difference Result 1648 states and 2233 transitions. [2022-07-19 18:32:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:19,411 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 [2022-07-19 18:32:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:19,413 INFO L225 Difference]: With dead ends: 1648 [2022-07-19 18:32:19,413 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:32:19,413 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:19,413 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 3708 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:19,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 3031 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:19,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:32:19,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 929. [2022-07-19 18:32:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 907 states have (on average 1.3561190738699007) internal successors, (1230), 928 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1230 transitions. [2022-07-19 18:32:19,628 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1230 transitions. Word has length 96 [2022-07-19 18:32:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:19,628 INFO L495 AbstractCegarLoop]: Abstraction has 929 states and 1230 transitions. [2022-07-19 18:32:19,628 INFO L496 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) [2022-07-19 18:32:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1230 transitions. [2022-07-19 18:32:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:19,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:19,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:19,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-19 18:32:19,630 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:19,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:19,630 INFO L85 PathProgramCache]: Analyzing trace with hash -263649479, now seen corresponding path program 1 times [2022-07-19 18:32:19,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:19,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146675555] [2022-07-19 18:32:19,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:19,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:19,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:19,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146675555] [2022-07-19 18:32:19,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146675555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:19,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:19,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:19,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901771933] [2022-07-19 18:32:19,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:19,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:19,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:19,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:19,815 INFO L87 Difference]: Start difference. First operand 929 states and 1230 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:22,993 INFO L93 Difference]: Finished difference Result 2373 states and 3299 transitions. [2022-07-19 18:32:22,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:22,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:22,995 INFO L225 Difference]: With dead ends: 2373 [2022-07-19 18:32:22,996 INFO L226 Difference]: Without dead ends: 2368 [2022-07-19 18:32:22,996 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:22,996 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 6852 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 930 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6852 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:22,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6852 Valid, 3447 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:32:22,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-07-19 18:32:23,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 937. [2022-07-19 18:32:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 915 states have (on average 1.3530054644808742) internal successors, (1238), 936 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:23,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1238 transitions. [2022-07-19 18:32:23,231 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1238 transitions. Word has length 96 [2022-07-19 18:32:23,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:23,231 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1238 transitions. [2022-07-19 18:32:23,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1238 transitions. [2022-07-19 18:32:23,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:23,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:23,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:23,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-19 18:32:23,233 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:23,233 INFO L85 PathProgramCache]: Analyzing trace with hash -375617371, now seen corresponding path program 1 times [2022-07-19 18:32:23,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:23,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808156057] [2022-07-19 18:32:23,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:23,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:23,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:23,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808156057] [2022-07-19 18:32:23,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808156057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:23,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:23,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:23,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697310935] [2022-07-19 18:32:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:23,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:23,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:23,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:23,341 INFO L87 Difference]: Start difference. First operand 937 states and 1238 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) [2022-07-19 18:32:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:25,138 INFO L93 Difference]: Finished difference Result 1793 states and 2449 transitions. [2022-07-19 18:32:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:25,139 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 [2022-07-19 18:32:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:25,140 INFO L225 Difference]: With dead ends: 1793 [2022-07-19 18:32:25,140 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:32:25,141 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:25,141 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 3706 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:25,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 3022 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:32:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 937. [2022-07-19 18:32:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 915 states have (on average 1.3508196721311476) internal successors, (1236), 936 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1236 transitions. [2022-07-19 18:32:25,406 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1236 transitions. Word has length 96 [2022-07-19 18:32:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:25,406 INFO L495 AbstractCegarLoop]: Abstraction has 937 states and 1236 transitions. [2022-07-19 18:32:25,406 INFO L496 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) [2022-07-19 18:32:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1236 transitions. [2022-07-19 18:32:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:25,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:25,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:25,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-19 18:32:25,407 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1360186144, now seen corresponding path program 1 times [2022-07-19 18:32:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:25,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941457639] [2022-07-19 18:32:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:25,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:25,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:25,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941457639] [2022-07-19 18:32:25,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941457639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:25,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:25,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667554833] [2022-07-19 18:32:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:25,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:25,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:25,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:25,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:25,563 INFO L87 Difference]: Start difference. First operand 937 states and 1236 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:28,583 INFO L93 Difference]: Finished difference Result 2373 states and 3295 transitions. [2022-07-19 18:32:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:28,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:28,586 INFO L225 Difference]: With dead ends: 2373 [2022-07-19 18:32:28,586 INFO L226 Difference]: Without dead ends: 2368 [2022-07-19 18:32:28,587 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:28,587 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 6943 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6943 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:28,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6943 Valid, 2823 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-07-19 18:32:28,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 945. [2022-07-19 18:32:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 923 states have (on average 1.3477789815817984) internal successors, (1244), 944 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1244 transitions. [2022-07-19 18:32:28,833 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1244 transitions. Word has length 96 [2022-07-19 18:32:28,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:28,833 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1244 transitions. [2022-07-19 18:32:28,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1244 transitions. [2022-07-19 18:32:28,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:28,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:28,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:28,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-19 18:32:28,835 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:28,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:28,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1470891933, now seen corresponding path program 1 times [2022-07-19 18:32:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:28,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922873022] [2022-07-19 18:32:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:28,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:28,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:28,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922873022] [2022-07-19 18:32:28,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922873022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:28,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:28,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:28,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610144411] [2022-07-19 18:32:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:28,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:28,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:28,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:28,933 INFO L87 Difference]: Start difference. First operand 945 states and 1244 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) [2022-07-19 18:32:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:30,728 INFO L93 Difference]: Finished difference Result 1793 states and 2445 transitions. [2022-07-19 18:32:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:30,728 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 [2022-07-19 18:32:30,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:30,730 INFO L225 Difference]: With dead ends: 1793 [2022-07-19 18:32:30,730 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:32:30,730 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:30,731 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 3608 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:30,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 3228 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:30,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:32:30,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 945. [2022-07-19 18:32:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 923 states have (on average 1.3456121343445286) internal successors, (1242), 944 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1242 transitions. [2022-07-19 18:32:30,963 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1242 transitions. Word has length 96 [2022-07-19 18:32:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:30,963 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1242 transitions. [2022-07-19 18:32:30,963 INFO L496 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) [2022-07-19 18:32:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1242 transitions. [2022-07-19 18:32:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:30,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:30,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:30,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-19 18:32:30,965 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:30,965 INFO L85 PathProgramCache]: Analyzing trace with hash 285754867, now seen corresponding path program 1 times [2022-07-19 18:32:30,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:30,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482697279] [2022-07-19 18:32:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:30,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:31,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482697279] [2022-07-19 18:32:31,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482697279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:31,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:31,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:31,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679838977] [2022-07-19 18:32:31,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:31,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:31,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:31,117 INFO L87 Difference]: Start difference. First operand 945 states and 1242 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:34,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:34,216 INFO L93 Difference]: Finished difference Result 2517 states and 3511 transitions. [2022-07-19 18:32:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:34,217 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:34,219 INFO L225 Difference]: With dead ends: 2517 [2022-07-19 18:32:34,219 INFO L226 Difference]: Without dead ends: 2367 [2022-07-19 18:32:34,219 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:34,220 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 6940 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2327 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6940 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 3271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:34,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6940 Valid, 2814 Invalid, 3271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 2327 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2022-07-19 18:32:34,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 953. [2022-07-19 18:32:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 931 states have (on average 1.3426423200859292) internal successors, (1250), 952 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:34,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1250 transitions. [2022-07-19 18:32:34,494 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1250 transitions. Word has length 96 [2022-07-19 18:32:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:34,494 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1250 transitions. [2022-07-19 18:32:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:34,495 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1250 transitions. [2022-07-19 18:32:34,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:34,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:34,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:34,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-19 18:32:34,496 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash -236226230, now seen corresponding path program 1 times [2022-07-19 18:32:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:34,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197218863] [2022-07-19 18:32:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:34,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:34,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197218863] [2022-07-19 18:32:34,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197218863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:34,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:34,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:34,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003262896] [2022-07-19 18:32:34,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:34,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:34,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:34,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:34,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:34,591 INFO L87 Difference]: Start difference. First operand 953 states and 1250 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) [2022-07-19 18:32:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:36,421 INFO L93 Difference]: Finished difference Result 1791 states and 2439 transitions. [2022-07-19 18:32:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:36,421 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 [2022-07-19 18:32:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:36,423 INFO L225 Difference]: With dead ends: 1791 [2022-07-19 18:32:36,423 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:32:36,423 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:36,424 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3607 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3607 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:36,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3607 Valid, 3224 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:32:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 953. [2022-07-19 18:32:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 931 states have (on average 1.3415682062298604) internal successors, (1249), 952 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1249 transitions. [2022-07-19 18:32:36,677 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1249 transitions. Word has length 96 [2022-07-19 18:32:36,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:36,677 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1249 transitions. [2022-07-19 18:32:36,677 INFO L496 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) [2022-07-19 18:32:36,677 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1249 transitions. [2022-07-19 18:32:36,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:36,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:36,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:36,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-19 18:32:36,678 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:36,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:36,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1906062599, now seen corresponding path program 1 times [2022-07-19 18:32:36,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:36,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513253882] [2022-07-19 18:32:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:36,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513253882] [2022-07-19 18:32:36,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513253882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:36,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:36,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:36,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973592497] [2022-07-19 18:32:36,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:36,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:36,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:36,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:36,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:36,835 INFO L87 Difference]: Start difference. First operand 953 states and 1249 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:40,002 INFO L93 Difference]: Finished difference Result 2373 states and 3288 transitions. [2022-07-19 18:32:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:40,005 INFO L225 Difference]: With dead ends: 2373 [2022-07-19 18:32:40,005 INFO L226 Difference]: Without dead ends: 2368 [2022-07-19 18:32:40,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:40,007 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 5098 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:40,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5098 Valid, 3028 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:40,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-07-19 18:32:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 957. [2022-07-19 18:32:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.3401069518716577) internal successors, (1253), 956 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1253 transitions. [2022-07-19 18:32:40,275 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1253 transitions. Word has length 96 [2022-07-19 18:32:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:40,275 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1253 transitions. [2022-07-19 18:32:40,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1253 transitions. [2022-07-19 18:32:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:40,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:40,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:40,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-19 18:32:40,276 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:40,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1010630433, now seen corresponding path program 1 times [2022-07-19 18:32:40,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:40,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92671162] [2022-07-19 18:32:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:40,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:40,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92671162] [2022-07-19 18:32:40,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92671162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:40,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:40,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:40,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340755188] [2022-07-19 18:32:40,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:40,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:40,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:40,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:40,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:40,439 INFO L87 Difference]: Start difference. First operand 957 states and 1253 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:43,773 INFO L93 Difference]: Finished difference Result 2513 states and 3503 transitions. [2022-07-19 18:32:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:43,774 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:43,776 INFO L225 Difference]: With dead ends: 2513 [2022-07-19 18:32:43,776 INFO L226 Difference]: Without dead ends: 2365 [2022-07-19 18:32:43,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:43,777 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 5100 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:43,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 3019 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:43,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-07-19 18:32:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 961. [2022-07-19 18:32:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 939 states have (on average 1.3386581469648562) internal successors, (1257), 960 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1257 transitions. [2022-07-19 18:32:44,043 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1257 transitions. Word has length 96 [2022-07-19 18:32:44,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:44,043 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1257 transitions. [2022-07-19 18:32:44,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1257 transitions. [2022-07-19 18:32:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:44,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:44,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:44,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-19 18:32:44,045 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:44,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1893367864, now seen corresponding path program 1 times [2022-07-19 18:32:44,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:44,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622910250] [2022-07-19 18:32:44,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:44,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:44,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:44,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622910250] [2022-07-19 18:32:44,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622910250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:44,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:44,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604658179] [2022-07-19 18:32:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:44,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:44,197 INFO L87 Difference]: Start difference. First operand 961 states and 1257 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:47,605 INFO L93 Difference]: Finished difference Result 2513 states and 3502 transitions. [2022-07-19 18:32:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:47,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:47,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:47,608 INFO L225 Difference]: With dead ends: 2513 [2022-07-19 18:32:47,608 INFO L226 Difference]: Without dead ends: 2365 [2022-07-19 18:32:47,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:47,609 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 5038 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 3872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:47,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 3651 Invalid, 3872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 3095 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 18:32:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-07-19 18:32:47,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 965. [2022-07-19 18:32:47,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.3372216330858961) internal successors, (1261), 964 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1261 transitions. [2022-07-19 18:32:47,883 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1261 transitions. Word has length 96 [2022-07-19 18:32:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:47,884 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1261 transitions. [2022-07-19 18:32:47,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1261 transitions. [2022-07-19 18:32:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:47,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:47,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:47,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-19 18:32:47,886 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:47,886 INFO L85 PathProgramCache]: Analyzing trace with hash 166686020, now seen corresponding path program 1 times [2022-07-19 18:32:47,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:47,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444661069] [2022-07-19 18:32:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:47,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:48,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:48,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444661069] [2022-07-19 18:32:48,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444661069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:48,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:48,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497011505] [2022-07-19 18:32:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:48,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:48,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:48,045 INFO L87 Difference]: Start difference. First operand 965 states and 1261 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:51,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:51,318 INFO L93 Difference]: Finished difference Result 2519 states and 3507 transitions. [2022-07-19 18:32:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:51,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:51,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:51,321 INFO L225 Difference]: With dead ends: 2519 [2022-07-19 18:32:51,321 INFO L226 Difference]: Without dead ends: 2368 [2022-07-19 18:32:51,322 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:51,322 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 6941 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6941 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:51,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6941 Valid, 2797 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 18:32:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-07-19 18:32:51,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 969. [2022-07-19 18:32:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3357972544878565) internal successors, (1265), 968 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:51,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1265 transitions. [2022-07-19 18:32:51,592 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1265 transitions. Word has length 96 [2022-07-19 18:32:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:51,592 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1265 transitions. [2022-07-19 18:32:51,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1265 transitions. [2022-07-19 18:32:51,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:51,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:51,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:51,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-19 18:32:51,593 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:51,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:51,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1834041875, now seen corresponding path program 1 times [2022-07-19 18:32:51,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:51,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647365190] [2022-07-19 18:32:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:51,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:51,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647365190] [2022-07-19 18:32:51,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647365190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:51,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:51,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:32:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404192032] [2022-07-19 18:32:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:51,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:32:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:32:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:32:51,684 INFO L87 Difference]: Start difference. First operand 969 states and 1265 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) [2022-07-19 18:32:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:53,563 INFO L93 Difference]: Finished difference Result 1791 states and 2434 transitions. [2022-07-19 18:32:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:32:53,564 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 [2022-07-19 18:32:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:53,566 INFO L225 Difference]: With dead ends: 1791 [2022-07-19 18:32:53,566 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:32:53,566 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:32:53,567 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 3616 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3616 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:53,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3616 Valid, 3184 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:32:53,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:32:53,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 969. [2022-07-19 18:32:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.334741288278775) internal successors, (1264), 968 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1264 transitions. [2022-07-19 18:32:53,846 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1264 transitions. Word has length 96 [2022-07-19 18:32:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:53,846 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1264 transitions. [2022-07-19 18:32:53,846 INFO L496 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) [2022-07-19 18:32:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1264 transitions. [2022-07-19 18:32:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:53,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:53,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:53,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-19 18:32:53,847 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1989068248, now seen corresponding path program 1 times [2022-07-19 18:32:53,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:53,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660655538] [2022-07-19 18:32:53,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:53,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:53,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:53,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660655538] [2022-07-19 18:32:53,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660655538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:53,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:53,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475573557] [2022-07-19 18:32:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:53,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:53,999 INFO L87 Difference]: Start difference. First operand 969 states and 1264 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:57,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:32:57,459 INFO L93 Difference]: Finished difference Result 2513 states and 3499 transitions. [2022-07-19 18:32:57,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:32:57,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:32:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:32:57,462 INFO L225 Difference]: With dead ends: 2513 [2022-07-19 18:32:57,462 INFO L226 Difference]: Without dead ends: 2365 [2022-07-19 18:32:57,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:32:57,463 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 6009 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6009 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 3878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 933 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:32:57,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6009 Valid, 3419 Invalid, 3878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [933 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:32:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-07-19 18:32:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 973. [2022-07-19 18:32:57,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3333333333333333) internal successors, (1268), 972 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1268 transitions. [2022-07-19 18:32:57,753 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1268 transitions. Word has length 96 [2022-07-19 18:32:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:32:57,753 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1268 transitions. [2022-07-19 18:32:57,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:32:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1268 transitions. [2022-07-19 18:32:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:32:57,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:32:57,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:32:57,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-19 18:32:57,755 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:32:57,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:32:57,755 INFO L85 PathProgramCache]: Analyzing trace with hash -974368547, now seen corresponding path program 1 times [2022-07-19 18:32:57,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:32:57,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629793875] [2022-07-19 18:32:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:32:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:32:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:32:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:32:57,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:32:57,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629793875] [2022-07-19 18:32:57,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629793875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:32:57,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:32:57,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:32:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905490538] [2022-07-19 18:32:57,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:32:57,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:32:57,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:32:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:32:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:32:57,902 INFO L87 Difference]: Start difference. First operand 973 states and 1268 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:01,159 INFO L93 Difference]: Finished difference Result 2519 states and 3504 transitions. [2022-07-19 18:33:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:33:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:33:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:01,162 INFO L225 Difference]: With dead ends: 2519 [2022-07-19 18:33:01,162 INFO L226 Difference]: Without dead ends: 2368 [2022-07-19 18:33:01,163 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:01,164 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 5824 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5824 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:01,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5824 Valid, 2782 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:33:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-07-19 18:33:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 977. [2022-07-19 18:33:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.331937172774869) internal successors, (1272), 976 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1272 transitions. [2022-07-19 18:33:01,463 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1272 transitions. Word has length 96 [2022-07-19 18:33:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:01,463 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1272 transitions. [2022-07-19 18:33:01,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1272 transitions. [2022-07-19 18:33:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:33:01,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:01,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:01,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-19 18:33:01,465 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1455369821, now seen corresponding path program 1 times [2022-07-19 18:33:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204692563] [2022-07-19 18:33:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:01,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:01,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:01,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204692563] [2022-07-19 18:33:01,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204692563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:01,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:01,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:01,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579134942] [2022-07-19 18:33:01,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:01,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:01,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:01,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:01,554 INFO L87 Difference]: Start difference. First operand 977 states and 1272 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) [2022-07-19 18:33:03,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:03,412 INFO L93 Difference]: Finished difference Result 1791 states and 2431 transitions. [2022-07-19 18:33:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:03,412 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 [2022-07-19 18:33:03,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:03,414 INFO L225 Difference]: With dead ends: 1791 [2022-07-19 18:33:03,414 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:33:03,414 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:03,415 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 3716 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:03,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3716 Valid, 2946 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:33:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 977. [2022-07-19 18:33:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.330890052356021) internal successors, (1271), 976 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1271 transitions. [2022-07-19 18:33:03,713 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1271 transitions. Word has length 96 [2022-07-19 18:33:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:03,713 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1271 transitions. [2022-07-19 18:33:03,713 INFO L496 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) [2022-07-19 18:33:03,713 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1271 transitions. [2022-07-19 18:33:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:33:03,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:03,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:03,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-19 18:33:03,715 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:03,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:03,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1282250964, now seen corresponding path program 1 times [2022-07-19 18:33:03,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:03,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917979933] [2022-07-19 18:33:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:03,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:03,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917979933] [2022-07-19 18:33:03,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917979933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:03,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:03,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334980153] [2022-07-19 18:33:03,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:03,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:03,812 INFO L87 Difference]: Start difference. First operand 977 states and 1271 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) [2022-07-19 18:33:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:05,683 INFO L93 Difference]: Finished difference Result 1794 states and 2433 transitions. [2022-07-19 18:33:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:05,683 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 [2022-07-19 18:33:05,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:05,685 INFO L225 Difference]: With dead ends: 1794 [2022-07-19 18:33:05,685 INFO L226 Difference]: Without dead ends: 1643 [2022-07-19 18:33:05,685 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:05,685 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 3715 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 2455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:05,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 2946 Invalid, 2455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:05,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-07-19 18:33:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 977. [2022-07-19 18:33:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 955 states have (on average 1.3298429319371727) internal successors, (1270), 976 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1270 transitions. [2022-07-19 18:33:05,985 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1270 transitions. Word has length 96 [2022-07-19 18:33:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:05,985 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1270 transitions. [2022-07-19 18:33:05,986 INFO L496 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) [2022-07-19 18:33:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1270 transitions. [2022-07-19 18:33:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 18:33:05,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:05,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:05,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-19 18:33:05,987 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1253817221, now seen corresponding path program 1 times [2022-07-19 18:33:05,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:05,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6669142] [2022-07-19 18:33:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:05,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:06,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:06,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6669142] [2022-07-19 18:33:06,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6669142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:06,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:06,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:33:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250751153] [2022-07-19 18:33:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:06,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:33:06,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:33:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:33:06,138 INFO L87 Difference]: Start difference. First operand 977 states and 1270 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:09,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:09,957 INFO L93 Difference]: Finished difference Result 2811 states and 3909 transitions. [2022-07-19 18:33:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:33:09,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-19 18:33:09,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:09,959 INFO L225 Difference]: With dead ends: 2811 [2022-07-19 18:33:09,959 INFO L226 Difference]: Without dead ends: 2648 [2022-07-19 18:33:09,960 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:09,960 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 6824 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 3188 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 3188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:09,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6824 Valid, 4075 Invalid, 3892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:33:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2022-07-19 18:33:10,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 981. [2022-07-19 18:33:10,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3284671532846715) internal successors, (1274), 980 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1274 transitions. [2022-07-19 18:33:10,263 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1274 transitions. Word has length 96 [2022-07-19 18:33:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:10,263 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1274 transitions. [2022-07-19 18:33:10,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1274 transitions. [2022-07-19 18:33:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:10,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:10,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:10,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-19 18:33:10,265 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:10,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1135046719, now seen corresponding path program 1 times [2022-07-19 18:33:10,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:10,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168714750] [2022-07-19 18:33:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:10,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168714750] [2022-07-19 18:33:10,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168714750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:10,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:10,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243575391] [2022-07-19 18:33:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:10,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:10,367 INFO L87 Difference]: Start difference. First operand 981 states and 1274 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) [2022-07-19 18:33:12,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:12,191 INFO L93 Difference]: Finished difference Result 1801 states and 2440 transitions. [2022-07-19 18:33:12,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:12,191 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 [2022-07-19 18:33:12,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:12,193 INFO L225 Difference]: With dead ends: 1801 [2022-07-19 18:33:12,193 INFO L226 Difference]: Without dead ends: 1647 [2022-07-19 18:33:12,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:12,193 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 3437 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:12,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3437 Valid, 2554 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:12,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-07-19 18:33:12,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 973. [2022-07-19 18:33:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 951 states have (on average 1.3291272344900105) internal successors, (1264), 972 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1264 transitions. [2022-07-19 18:33:12,504 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1264 transitions. Word has length 97 [2022-07-19 18:33:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:12,504 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1264 transitions. [2022-07-19 18:33:12,504 INFO L496 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) [2022-07-19 18:33:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1264 transitions. [2022-07-19 18:33:12,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:12,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:12,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:12,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-19 18:33:12,506 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1945440602, now seen corresponding path program 1 times [2022-07-19 18:33:12,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:12,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237760334] [2022-07-19 18:33:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:12,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:12,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:12,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237760334] [2022-07-19 18:33:12,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237760334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:12,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:12,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:12,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302844255] [2022-07-19 18:33:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:12,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:12,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:12,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:12,596 INFO L87 Difference]: Start difference. First operand 973 states and 1264 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) [2022-07-19 18:33:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:14,459 INFO L93 Difference]: Finished difference Result 1913 states and 2586 transitions. [2022-07-19 18:33:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:14,460 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 [2022-07-19 18:33:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:14,462 INFO L225 Difference]: With dead ends: 1913 [2022-07-19 18:33:14,462 INFO L226 Difference]: Without dead ends: 1743 [2022-07-19 18:33:14,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:14,462 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2911 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:14,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 2967 Invalid, 2324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2022-07-19 18:33:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 965. [2022-07-19 18:33:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 943 states have (on average 1.3297985153764582) internal successors, (1254), 964 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1254 transitions. [2022-07-19 18:33:14,775 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1254 transitions. Word has length 97 [2022-07-19 18:33:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:14,775 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1254 transitions. [2022-07-19 18:33:14,775 INFO L496 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) [2022-07-19 18:33:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1254 transitions. [2022-07-19 18:33:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:14,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:14,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:14,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-19 18:33:14,778 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash 751028406, now seen corresponding path program 1 times [2022-07-19 18:33:14,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:14,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999811323] [2022-07-19 18:33:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:14,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:14,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999811323] [2022-07-19 18:33:14,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999811323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:14,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:14,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:14,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389942077] [2022-07-19 18:33:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:14,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:14,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:14,865 INFO L87 Difference]: Start difference. First operand 965 states and 1254 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) [2022-07-19 18:33:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:16,681 INFO L93 Difference]: Finished difference Result 1644 states and 2203 transitions. [2022-07-19 18:33:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:16,681 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 [2022-07-19 18:33:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:16,683 INFO L225 Difference]: With dead ends: 1644 [2022-07-19 18:33:16,683 INFO L226 Difference]: Without dead ends: 1639 [2022-07-19 18:33:16,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:16,684 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 3010 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3010 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:16,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3010 Valid, 2620 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2022-07-19 18:33:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 957. [2022-07-19 18:33:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 935 states have (on average 1.33048128342246) internal successors, (1244), 956 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1244 transitions. [2022-07-19 18:33:16,985 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1244 transitions. Word has length 97 [2022-07-19 18:33:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:16,985 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1244 transitions. [2022-07-19 18:33:16,985 INFO L496 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) [2022-07-19 18:33:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1244 transitions. [2022-07-19 18:33:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:16,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:16,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:16,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-19 18:33:16,987 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:16,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:16,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2144257693, now seen corresponding path program 1 times [2022-07-19 18:33:16,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:16,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770013844] [2022-07-19 18:33:16,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:16,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:17,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:17,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770013844] [2022-07-19 18:33:17,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770013844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:17,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:17,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:17,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589245888] [2022-07-19 18:33:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:17,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:17,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:17,076 INFO L87 Difference]: Start difference. First operand 957 states and 1244 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) [2022-07-19 18:33:18,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:18,956 INFO L93 Difference]: Finished difference Result 1752 states and 2342 transitions. [2022-07-19 18:33:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:18,957 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 [2022-07-19 18:33:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:18,959 INFO L225 Difference]: With dead ends: 1752 [2022-07-19 18:33:18,959 INFO L226 Difference]: Without dead ends: 1735 [2022-07-19 18:33:18,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:18,960 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1971 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:18,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 3019 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:18,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-07-19 18:33:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 949. [2022-07-19 18:33:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 927 states have (on average 1.331175836030205) internal successors, (1234), 948 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1234 transitions. [2022-07-19 18:33:19,274 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1234 transitions. Word has length 97 [2022-07-19 18:33:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:19,275 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1234 transitions. [2022-07-19 18:33:19,275 INFO L496 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) [2022-07-19 18:33:19,275 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1234 transitions. [2022-07-19 18:33:19,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:19,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:19,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:19,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-19 18:33:19,276 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:19,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1118128888, now seen corresponding path program 1 times [2022-07-19 18:33:19,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:19,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096451864] [2022-07-19 18:33:19,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:19,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:19,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:19,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096451864] [2022-07-19 18:33:19,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096451864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:19,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:19,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:19,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860342551] [2022-07-19 18:33:19,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:19,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:19,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:19,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:19,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:19,364 INFO L87 Difference]: Start difference. First operand 949 states and 1234 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) [2022-07-19 18:33:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:21,182 INFO L93 Difference]: Finished difference Result 1636 states and 2191 transitions. [2022-07-19 18:33:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:21,182 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 [2022-07-19 18:33:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:21,184 INFO L225 Difference]: With dead ends: 1636 [2022-07-19 18:33:21,184 INFO L226 Difference]: Without dead ends: 1631 [2022-07-19 18:33:21,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:21,184 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2053 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:21,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 2680 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:21,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2022-07-19 18:33:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 941. [2022-07-19 18:33:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 919 states have (on average 1.3318824809575627) internal successors, (1224), 940 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1224 transitions. [2022-07-19 18:33:21,494 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1224 transitions. Word has length 97 [2022-07-19 18:33:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:21,495 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 1224 transitions. [2022-07-19 18:33:21,495 INFO L496 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) [2022-07-19 18:33:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1224 transitions. [2022-07-19 18:33:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:21,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:21,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:21,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-19 18:33:21,496 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1222528787, now seen corresponding path program 1 times [2022-07-19 18:33:21,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:21,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334467364] [2022-07-19 18:33:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:21,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334467364] [2022-07-19 18:33:21,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334467364] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:21,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:21,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651687679] [2022-07-19 18:33:21,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:21,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:21,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:21,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:21,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:21,604 INFO L87 Difference]: Start difference. First operand 941 states and 1224 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) [2022-07-19 18:33:23,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:23,576 INFO L93 Difference]: Finished difference Result 1777 states and 2405 transitions. [2022-07-19 18:33:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:23,577 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 [2022-07-19 18:33:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:23,579 INFO L225 Difference]: With dead ends: 1777 [2022-07-19 18:33:23,579 INFO L226 Difference]: Without dead ends: 1629 [2022-07-19 18:33:23,579 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:23,580 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 3631 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:23,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3631 Valid, 3087 Invalid, 2490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:23,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-07-19 18:33:23,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 939. [2022-07-19 18:33:23,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 917 states have (on average 1.3304252998909487) internal successors, (1220), 938 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1220 transitions. [2022-07-19 18:33:23,900 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1220 transitions. Word has length 97 [2022-07-19 18:33:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:23,901 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1220 transitions. [2022-07-19 18:33:23,901 INFO L496 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) [2022-07-19 18:33:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1220 transitions. [2022-07-19 18:33:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:23,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:23,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:23,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-19 18:33:23,903 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:23,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash -377306428, now seen corresponding path program 1 times [2022-07-19 18:33:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226205106] [2022-07-19 18:33:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:23,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:23,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226205106] [2022-07-19 18:33:23,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226205106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:23,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:23,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344734343] [2022-07-19 18:33:23,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:23,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:23,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:23,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:23,986 INFO L87 Difference]: Start difference. First operand 939 states and 1220 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) [2022-07-19 18:33:25,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:25,829 INFO L93 Difference]: Finished difference Result 1779 states and 2405 transitions. [2022-07-19 18:33:25,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:25,829 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 [2022-07-19 18:33:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:25,831 INFO L225 Difference]: With dead ends: 1779 [2022-07-19 18:33:25,831 INFO L226 Difference]: Without dead ends: 1629 [2022-07-19 18:33:25,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:25,831 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2945 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:25,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2945 Valid, 2690 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-07-19 18:33:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 931. [2022-07-19 18:33:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 909 states have (on average 1.331133113311331) internal successors, (1210), 930 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1210 transitions. [2022-07-19 18:33:26,140 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1210 transitions. Word has length 97 [2022-07-19 18:33:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:26,140 INFO L495 AbstractCegarLoop]: Abstraction has 931 states and 1210 transitions. [2022-07-19 18:33:26,140 INFO L496 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) [2022-07-19 18:33:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1210 transitions. [2022-07-19 18:33:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:26,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:26,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:26,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-19 18:33:26,142 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:26,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -800281311, now seen corresponding path program 1 times [2022-07-19 18:33:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458252321] [2022-07-19 18:33:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:26,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458252321] [2022-07-19 18:33:26,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458252321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:26,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:26,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:26,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666132239] [2022-07-19 18:33:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:26,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:26,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:26,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:26,226 INFO L87 Difference]: Start difference. First operand 931 states and 1210 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) [2022-07-19 18:33:28,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:28,082 INFO L93 Difference]: Finished difference Result 1634 states and 2183 transitions. [2022-07-19 18:33:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:28,083 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 [2022-07-19 18:33:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:28,084 INFO L225 Difference]: With dead ends: 1634 [2022-07-19 18:33:28,084 INFO L226 Difference]: Without dead ends: 1629 [2022-07-19 18:33:28,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:28,085 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2936 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:28,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2936 Valid, 2696 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-07-19 18:33:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 927. [2022-07-19 18:33:28,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 905 states have (on average 1.3314917127071824) internal successors, (1205), 926 states have internal predecessors, (1205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:28,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1205 transitions. [2022-07-19 18:33:28,398 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1205 transitions. Word has length 97 [2022-07-19 18:33:28,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:28,398 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1205 transitions. [2022-07-19 18:33:28,399 INFO L496 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) [2022-07-19 18:33:28,399 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1205 transitions. [2022-07-19 18:33:28,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:28,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:28,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:28,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-19 18:33:28,401 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:28,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:28,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1416715659, now seen corresponding path program 1 times [2022-07-19 18:33:28,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:28,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671625656] [2022-07-19 18:33:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:28,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671625656] [2022-07-19 18:33:28,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671625656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:28,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:28,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972362721] [2022-07-19 18:33:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:28,485 INFO L87 Difference]: Start difference. First operand 927 states and 1205 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) [2022-07-19 18:33:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:30,357 INFO L93 Difference]: Finished difference Result 1777 states and 2400 transitions. [2022-07-19 18:33:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:30,358 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 [2022-07-19 18:33:30,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:30,359 INFO L225 Difference]: With dead ends: 1777 [2022-07-19 18:33:30,359 INFO L226 Difference]: Without dead ends: 1629 [2022-07-19 18:33:30,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:30,360 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2033 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:30,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 2706 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:30,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-07-19 18:33:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 923. [2022-07-19 18:33:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 901 states have (on average 1.3318534961154274) internal successors, (1200), 922 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1200 transitions. [2022-07-19 18:33:30,685 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1200 transitions. Word has length 97 [2022-07-19 18:33:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:30,685 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1200 transitions. [2022-07-19 18:33:30,686 INFO L496 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) [2022-07-19 18:33:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1200 transitions. [2022-07-19 18:33:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:30,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:30,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:30,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-19 18:33:30,687 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:30,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:30,687 INFO L85 PathProgramCache]: Analyzing trace with hash 120151218, now seen corresponding path program 1 times [2022-07-19 18:33:30,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:30,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012934581] [2022-07-19 18:33:30,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:30,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:30,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:30,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012934581] [2022-07-19 18:33:30,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012934581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:30,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:30,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999353730] [2022-07-19 18:33:30,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:30,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:30,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:30,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:30,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:30,790 INFO L87 Difference]: Start difference. First operand 923 states and 1200 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) [2022-07-19 18:33:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:32,801 INFO L93 Difference]: Finished difference Result 1775 states and 2397 transitions. [2022-07-19 18:33:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:32,802 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 [2022-07-19 18:33:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:32,804 INFO L225 Difference]: With dead ends: 1775 [2022-07-19 18:33:32,804 INFO L226 Difference]: Without dead ends: 1628 [2022-07-19 18:33:32,804 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:32,804 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 3603 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2304 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3603 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:32,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3603 Valid, 3107 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2304 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2022-07-19 18:33:33,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 922. [2022-07-19 18:33:33,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3311111111111111) internal successors, (1198), 921 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1198 transitions. [2022-07-19 18:33:33,126 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1198 transitions. Word has length 97 [2022-07-19 18:33:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:33,126 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1198 transitions. [2022-07-19 18:33:33,127 INFO L496 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) [2022-07-19 18:33:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1198 transitions. [2022-07-19 18:33:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:33,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:33,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:33,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-19 18:33:33,128 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1143474343, now seen corresponding path program 1 times [2022-07-19 18:33:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:33,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873359972] [2022-07-19 18:33:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:33,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:33,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873359972] [2022-07-19 18:33:33,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873359972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:33,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:33,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:33,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336383045] [2022-07-19 18:33:33,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:33,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:33,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:33,222 INFO L87 Difference]: Start difference. First operand 922 states and 1198 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) [2022-07-19 18:33:35,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:35,248 INFO L93 Difference]: Finished difference Result 1774 states and 2395 transitions. [2022-07-19 18:33:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:35,248 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 [2022-07-19 18:33:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:35,250 INFO L225 Difference]: With dead ends: 1774 [2022-07-19 18:33:35,250 INFO L226 Difference]: Without dead ends: 1627 [2022-07-19 18:33:35,250 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:35,250 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 3583 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:35,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3583 Valid, 3155 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:35,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-07-19 18:33:35,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 921. [2022-07-19 18:33:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3303670745272524) internal successors, (1196), 920 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1196 transitions. [2022-07-19 18:33:35,563 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1196 transitions. Word has length 97 [2022-07-19 18:33:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:35,563 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1196 transitions. [2022-07-19 18:33:35,563 INFO L496 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) [2022-07-19 18:33:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1196 transitions. [2022-07-19 18:33:35,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:35,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:35,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:35,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-19 18:33:35,565 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:35,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1624946029, now seen corresponding path program 1 times [2022-07-19 18:33:35,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:35,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568775379] [2022-07-19 18:33:35,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:35,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568775379] [2022-07-19 18:33:35,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568775379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:35,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:35,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:35,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008769932] [2022-07-19 18:33:35,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:35,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:35,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:35,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:35,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:35,643 INFO L87 Difference]: Start difference. First operand 921 states and 1196 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) [2022-07-19 18:33:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:37,580 INFO L93 Difference]: Finished difference Result 1775 states and 2395 transitions. [2022-07-19 18:33:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:37,580 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 [2022-07-19 18:33:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:37,582 INFO L225 Difference]: With dead ends: 1775 [2022-07-19 18:33:37,582 INFO L226 Difference]: Without dead ends: 1627 [2022-07-19 18:33:37,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:37,582 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 2691 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:37,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 2960 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:37,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-07-19 18:33:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 917. [2022-07-19 18:33:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3307262569832403) internal successors, (1191), 916 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1191 transitions. [2022-07-19 18:33:37,904 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1191 transitions. Word has length 97 [2022-07-19 18:33:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:37,904 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1191 transitions. [2022-07-19 18:33:37,904 INFO L496 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) [2022-07-19 18:33:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1191 transitions. [2022-07-19 18:33:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:37,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:37,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:37,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-19 18:33:37,905 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:37,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1619562240, now seen corresponding path program 1 times [2022-07-19 18:33:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:37,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671664231] [2022-07-19 18:33:37,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:37,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:38,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671664231] [2022-07-19 18:33:38,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671664231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:38,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:38,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:33:38,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407215397] [2022-07-19 18:33:38,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:38,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:33:38,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:33:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:33:38,056 INFO L87 Difference]: Start difference. First operand 917 states and 1191 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) [2022-07-19 18:33:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:41,655 INFO L93 Difference]: Finished difference Result 2493 states and 3456 transitions. [2022-07-19 18:33:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:33:41,655 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 [2022-07-19 18:33:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:41,657 INFO L225 Difference]: With dead ends: 2493 [2022-07-19 18:33:41,657 INFO L226 Difference]: Without dead ends: 2346 [2022-07-19 18:33:41,658 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:41,658 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 5615 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:41,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 2889 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:33:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2022-07-19 18:33:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 921. [2022-07-19 18:33:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3292547274749722) internal successors, (1195), 920 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:41,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1195 transitions. [2022-07-19 18:33:41,980 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1195 transitions. Word has length 97 [2022-07-19 18:33:41,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:41,980 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1195 transitions. [2022-07-19 18:33:41,980 INFO L496 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) [2022-07-19 18:33:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1195 transitions. [2022-07-19 18:33:41,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:41,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:41,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:41,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-19 18:33:41,981 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:41,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1846486582, now seen corresponding path program 1 times [2022-07-19 18:33:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:41,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441120357] [2022-07-19 18:33:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:42,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:42,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441120357] [2022-07-19 18:33:42,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441120357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:42,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:42,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:42,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364100407] [2022-07-19 18:33:42,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:42,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:42,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:42,060 INFO L87 Difference]: Start difference. First operand 921 states and 1195 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) [2022-07-19 18:33:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:44,085 INFO L93 Difference]: Finished difference Result 1773 states and 2391 transitions. [2022-07-19 18:33:44,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:44,086 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 [2022-07-19 18:33:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:44,087 INFO L225 Difference]: With dead ends: 1773 [2022-07-19 18:33:44,087 INFO L226 Difference]: Without dead ends: 1626 [2022-07-19 18:33:44,088 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:44,088 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 3586 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:44,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3586 Valid, 3111 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-19 18:33:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 921. [2022-07-19 18:33:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.328142380422692) internal successors, (1194), 920 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1194 transitions. [2022-07-19 18:33:44,424 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1194 transitions. Word has length 97 [2022-07-19 18:33:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:44,424 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1194 transitions. [2022-07-19 18:33:44,424 INFO L496 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) [2022-07-19 18:33:44,424 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1194 transitions. [2022-07-19 18:33:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:44,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:44,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:44,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-19 18:33:44,425 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:44,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:44,426 INFO L85 PathProgramCache]: Analyzing trace with hash -969581064, now seen corresponding path program 1 times [2022-07-19 18:33:44,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:44,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050975696] [2022-07-19 18:33:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:44,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050975696] [2022-07-19 18:33:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050975696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:44,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:44,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498474549] [2022-07-19 18:33:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:44,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:44,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:44,513 INFO L87 Difference]: Start difference. First operand 921 states and 1194 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) [2022-07-19 18:33:46,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:46,440 INFO L93 Difference]: Finished difference Result 1777 states and 2394 transitions. [2022-07-19 18:33:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:46,440 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 [2022-07-19 18:33:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:46,442 INFO L225 Difference]: With dead ends: 1777 [2022-07-19 18:33:46,442 INFO L226 Difference]: Without dead ends: 1626 [2022-07-19 18:33:46,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:46,443 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 2895 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:46,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 2718 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-19 18:33:46,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 917. [2022-07-19 18:33:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3284916201117318) internal successors, (1189), 916 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1189 transitions. [2022-07-19 18:33:46,769 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1189 transitions. Word has length 97 [2022-07-19 18:33:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:46,769 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 1189 transitions. [2022-07-19 18:33:46,769 INFO L496 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) [2022-07-19 18:33:46,769 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1189 transitions. [2022-07-19 18:33:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:46,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:46,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:46,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-19 18:33:46,776 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:46,776 INFO L85 PathProgramCache]: Analyzing trace with hash -929040564, now seen corresponding path program 1 times [2022-07-19 18:33:46,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:46,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929733058] [2022-07-19 18:33:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:46,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:46,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:46,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929733058] [2022-07-19 18:33:46,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929733058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:46,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:46,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101567317] [2022-07-19 18:33:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:46,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:46,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:46,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:46,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:46,854 INFO L87 Difference]: Start difference. First operand 917 states and 1189 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) [2022-07-19 18:33:48,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:48,795 INFO L93 Difference]: Finished difference Result 1774 states and 2390 transitions. [2022-07-19 18:33:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:48,799 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 [2022-07-19 18:33:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:48,801 INFO L225 Difference]: With dead ends: 1774 [2022-07-19 18:33:48,801 INFO L226 Difference]: Without dead ends: 1626 [2022-07-19 18:33:48,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:48,802 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 3766 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:48,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3766 Valid, 2721 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:48,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-19 18:33:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 913. [2022-07-19 18:33:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3288439955106621) internal successors, (1184), 912 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1184 transitions. [2022-07-19 18:33:49,132 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1184 transitions. Word has length 97 [2022-07-19 18:33:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:49,132 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1184 transitions. [2022-07-19 18:33:49,133 INFO L496 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) [2022-07-19 18:33:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1184 transitions. [2022-07-19 18:33:49,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:49,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:49,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:49,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-19 18:33:49,134 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1976743709, now seen corresponding path program 1 times [2022-07-19 18:33:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:49,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304600744] [2022-07-19 18:33:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:49,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304600744] [2022-07-19 18:33:49,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304600744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:49,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:49,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:49,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237606330] [2022-07-19 18:33:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:49,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:49,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:49,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:49,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:49,236 INFO L87 Difference]: Start difference. First operand 913 states and 1184 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) [2022-07-19 18:33:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:51,374 INFO L93 Difference]: Finished difference Result 1772 states and 2387 transitions. [2022-07-19 18:33:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:51,374 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 [2022-07-19 18:33:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:51,376 INFO L225 Difference]: With dead ends: 1772 [2022-07-19 18:33:51,376 INFO L226 Difference]: Without dead ends: 1626 [2022-07-19 18:33:51,376 INFO L412 NwaCegarLoop]: 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 [2022-07-19 18:33:51,377 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3566 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:51,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 3131 Invalid, 2452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:33:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-19 18:33:51,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 913. [2022-07-19 18:33:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3277216610549945) internal successors, (1183), 912 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1183 transitions. [2022-07-19 18:33:51,716 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1183 transitions. Word has length 97 [2022-07-19 18:33:51,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:51,716 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1183 transitions. [2022-07-19 18:33:51,716 INFO L496 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) [2022-07-19 18:33:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1183 transitions. [2022-07-19 18:33:51,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:51,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:51,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:51,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-19 18:33:51,718 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1982533010, now seen corresponding path program 1 times [2022-07-19 18:33:51,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:51,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915892944] [2022-07-19 18:33:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:51,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:51,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:51,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915892944] [2022-07-19 18:33:51,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915892944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:51,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:51,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740898119] [2022-07-19 18:33:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:51,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:51,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:51,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:51,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:51,797 INFO L87 Difference]: Start difference. First operand 913 states and 1183 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) [2022-07-19 18:33:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:53,731 INFO L93 Difference]: Finished difference Result 1777 states and 2391 transitions. [2022-07-19 18:33:53,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:53,731 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 [2022-07-19 18:33:53,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:53,733 INFO L225 Difference]: With dead ends: 1777 [2022-07-19 18:33:53,733 INFO L226 Difference]: Without dead ends: 1626 [2022-07-19 18:33:53,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:53,734 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2000 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:53,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 2738 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:33:53,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-19 18:33:54,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 909. [2022-07-19 18:33:54,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3280721533258173) internal successors, (1178), 908 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1178 transitions. [2022-07-19 18:33:54,077 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1178 transitions. Word has length 97 [2022-07-19 18:33:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:54,077 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1178 transitions. [2022-07-19 18:33:54,077 INFO L496 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) [2022-07-19 18:33:54,077 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1178 transitions. [2022-07-19 18:33:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 18:33:54,078 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:54,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:54,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-19 18:33:54,079 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1521188561, now seen corresponding path program 1 times [2022-07-19 18:33:54,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:54,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688817416] [2022-07-19 18:33:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:54,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:54,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688817416] [2022-07-19 18:33:54,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688817416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:54,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:54,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:33:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154725300] [2022-07-19 18:33:54,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:54,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:33:54,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:54,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:33:54,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:33:54,167 INFO L87 Difference]: Start difference. First operand 909 states and 1178 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) [2022-07-19 18:33:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:56,176 INFO L93 Difference]: Finished difference Result 1837 states and 2478 transitions. [2022-07-19 18:33:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:33:56,176 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 [2022-07-19 18:33:56,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:56,178 INFO L225 Difference]: With dead ends: 1837 [2022-07-19 18:33:56,178 INFO L226 Difference]: Without dead ends: 1674 [2022-07-19 18:33:56,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:56,178 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 1824 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:56,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3253 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:33:56,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-07-19 18:33:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 905. [2022-07-19 18:33:56,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3284258210645528) internal successors, (1173), 904 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1173 transitions. [2022-07-19 18:33:56,515 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1173 transitions. Word has length 97 [2022-07-19 18:33:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:56,515 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1173 transitions. [2022-07-19 18:33:56,515 INFO L496 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) [2022-07-19 18:33:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1173 transitions. [2022-07-19 18:33:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:33:56,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:56,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:56,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-19 18:33:56,517 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -624675544, now seen corresponding path program 1 times [2022-07-19 18:33:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:56,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096797125] [2022-07-19 18:33:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:56,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:56,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:56,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:56,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096797125] [2022-07-19 18:33:56,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096797125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:56,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:56,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:33:56,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061400398] [2022-07-19 18:33:56,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:56,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:33:56,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:56,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:33:56,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:33:56,818 INFO L87 Difference]: Start difference. First operand 905 states and 1173 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:33:58,894 INFO L93 Difference]: Finished difference Result 1476 states and 1939 transitions. [2022-07-19 18:33:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:33:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:33:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:33:58,896 INFO L225 Difference]: With dead ends: 1476 [2022-07-19 18:33:58,896 INFO L226 Difference]: Without dead ends: 1324 [2022-07-19 18:33:58,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:33:58,897 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 3189 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3189 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:33:58,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3189 Valid, 4145 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:33:58,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-07-19 18:33:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 895. [2022-07-19 18:33:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 874 states have (on average 1.3249427917620138) internal successors, (1158), 894 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1158 transitions. [2022-07-19 18:33:59,243 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1158 transitions. Word has length 98 [2022-07-19 18:33:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:33:59,243 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1158 transitions. [2022-07-19 18:33:59,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:33:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1158 transitions. [2022-07-19 18:33:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:33:59,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:33:59,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:33:59,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-19 18:33:59,245 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:33:59,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:33:59,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1226755919, now seen corresponding path program 1 times [2022-07-19 18:33:59,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:33:59,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863366852] [2022-07-19 18:33:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:33:59,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:33:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:33:59,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:33:59,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:33:59,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863366852] [2022-07-19 18:33:59,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863366852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:33:59,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:33:59,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:33:59,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883461190] [2022-07-19 18:33:59,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:33:59,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:33:59,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:33:59,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:33:59,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:33:59,557 INFO L87 Difference]: Start difference. First operand 895 states and 1158 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:03,434 INFO L93 Difference]: Finished difference Result 3114 states and 4283 transitions. [2022-07-19 18:34:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:34:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:03,437 INFO L225 Difference]: With dead ends: 3114 [2022-07-19 18:34:03,437 INFO L226 Difference]: Without dead ends: 2914 [2022-07-19 18:34:03,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:34:03,438 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 4235 mSDsluCounter, 13124 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4235 SdHoareTripleChecker+Valid, 14970 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:03,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4235 Valid, 14970 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:34:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-07-19 18:34:03,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 841. [2022-07-19 18:34:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 823 states have (on average 1.3207776427703524) internal successors, (1087), 840 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1087 transitions. [2022-07-19 18:34:03,826 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1087 transitions. Word has length 98 [2022-07-19 18:34:03,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:03,826 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1087 transitions. [2022-07-19 18:34:03,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:03,826 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1087 transitions. [2022-07-19 18:34:03,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:34:03,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:03,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:03,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-19 18:34:03,827 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:03,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015527, now seen corresponding path program 1 times [2022-07-19 18:34:03,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:03,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279422568] [2022-07-19 18:34:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:03,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:04,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:04,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279422568] [2022-07-19 18:34:04,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279422568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:04,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:04,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-19 18:34:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707728789] [2022-07-19 18:34:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:04,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-19 18:34:04,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-19 18:34:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-19 18:34:04,252 INFO L87 Difference]: Start difference. First operand 841 states and 1087 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:07,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:07,707 INFO L93 Difference]: Finished difference Result 2329 states and 3165 transitions. [2022-07-19 18:34:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 18:34:07,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:07,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:07,709 INFO L225 Difference]: With dead ends: 2329 [2022-07-19 18:34:07,709 INFO L226 Difference]: Without dead ends: 2079 [2022-07-19 18:34:07,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-19 18:34:07,710 INFO L413 NwaCegarLoop]: 1406 mSDtfsCounter, 4609 mSDsluCounter, 11535 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 12941 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:07,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 12941 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:34:07,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2022-07-19 18:34:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 795. [2022-07-19 18:34:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 778 states have (on average 1.3161953727506426) internal successors, (1024), 794 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1024 transitions. [2022-07-19 18:34:08,124 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1024 transitions. Word has length 98 [2022-07-19 18:34:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:08,124 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1024 transitions. [2022-07-19 18:34:08,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1024 transitions. [2022-07-19 18:34:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:34:08,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:08,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:08,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-19 18:34:08,125 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:08,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:08,125 INFO L85 PathProgramCache]: Analyzing trace with hash 454771522, now seen corresponding path program 1 times [2022-07-19 18:34:08,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:08,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680205939] [2022-07-19 18:34:08,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:08,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:08,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:08,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680205939] [2022-07-19 18:34:08,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680205939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:08,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:08,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:34:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243546873] [2022-07-19 18:34:08,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:08,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:08,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:08,362 INFO L87 Difference]: Start difference. First operand 795 states and 1024 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:09,785 INFO L93 Difference]: Finished difference Result 1453 states and 1973 transitions. [2022-07-19 18:34:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:34:09,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:09,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:09,787 INFO L225 Difference]: With dead ends: 1453 [2022-07-19 18:34:09,787 INFO L226 Difference]: Without dead ends: 1109 [2022-07-19 18:34:09,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:34:09,788 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 2891 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:09,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2891 Valid, 5509 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:34:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-19 18:34:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 597. [2022-07-19 18:34:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 585 states have (on average 1.3162393162393162) internal successors, (770), 596 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 770 transitions. [2022-07-19 18:34:10,135 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 770 transitions. Word has length 98 [2022-07-19 18:34:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:10,135 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 770 transitions. [2022-07-19 18:34:10,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 770 transitions. [2022-07-19 18:34:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:34:10,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:10,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:10,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-19 18:34:10,136 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:10,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:10,136 INFO L85 PathProgramCache]: Analyzing trace with hash 773924719, now seen corresponding path program 1 times [2022-07-19 18:34:10,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:10,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826532262] [2022-07-19 18:34:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:10,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:10,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826532262] [2022-07-19 18:34:10,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826532262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:10,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:34:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598567163] [2022-07-19 18:34:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:10,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:10,366 INFO L87 Difference]: Start difference. First operand 597 states and 770 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:11,859 INFO L93 Difference]: Finished difference Result 1302 states and 1799 transitions. [2022-07-19 18:34:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:34:11,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:11,861 INFO L225 Difference]: With dead ends: 1302 [2022-07-19 18:34:11,861 INFO L226 Difference]: Without dead ends: 1057 [2022-07-19 18:34:11,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:34:11,862 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 2760 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:11,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 3840 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:34:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-07-19 18:34:12,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 498. [2022-07-19 18:34:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 487 states have (on average 1.3141683778234086) internal successors, (640), 497 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 640 transitions. [2022-07-19 18:34:12,184 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 640 transitions. Word has length 98 [2022-07-19 18:34:12,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:12,184 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 640 transitions. [2022-07-19 18:34:12,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:12,185 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 640 transitions. [2022-07-19 18:34:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:34:12,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:12,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:12,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-19 18:34:12,185 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1439429279, now seen corresponding path program 1 times [2022-07-19 18:34:12,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:12,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093352877] [2022-07-19 18:34:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:12,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093352877] [2022-07-19 18:34:12,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093352877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:12,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:12,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-19 18:34:12,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670435996] [2022-07-19 18:34:12,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:12,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-19 18:34:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-19 18:34:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-19 18:34:12,633 INFO L87 Difference]: Start difference. First operand 498 states and 640 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:15,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:15,748 INFO L93 Difference]: Finished difference Result 1783 states and 2460 transitions. [2022-07-19 18:34:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 18:34:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:15,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:15,750 INFO L225 Difference]: With dead ends: 1783 [2022-07-19 18:34:15,750 INFO L226 Difference]: Without dead ends: 1593 [2022-07-19 18:34:15,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-19 18:34:15,751 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 2440 mSDsluCounter, 9636 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 10714 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:15,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 10714 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:34:15,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-07-19 18:34:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 480. [2022-07-19 18:34:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 469 states have (on average 1.3091684434968016) internal successors, (614), 479 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:16,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 614 transitions. [2022-07-19 18:34:16,062 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 614 transitions. Word has length 98 [2022-07-19 18:34:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:16,062 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 614 transitions. [2022-07-19 18:34:16,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:16,063 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 614 transitions. [2022-07-19 18:34:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 18:34:16,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:16,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-19 18:34:16,064 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash 102691288, now seen corresponding path program 1 times [2022-07-19 18:34:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:16,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498800472] [2022-07-19 18:34:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:16,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:16,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498800472] [2022-07-19 18:34:16,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498800472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:16,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:16,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:34:16,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937470814] [2022-07-19 18:34:16,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:16,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:34:16,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:16,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:34:16,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:34:16,260 INFO L87 Difference]: Start difference. First operand 480 states and 614 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:17,769 INFO L93 Difference]: Finished difference Result 1152 states and 1575 transitions. [2022-07-19 18:34:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:34:17,769 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-19 18:34:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:17,771 INFO L225 Difference]: With dead ends: 1152 [2022-07-19 18:34:17,771 INFO L226 Difference]: Without dead ends: 901 [2022-07-19 18:34:17,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:34:17,771 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 1860 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:17,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 2134 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:34:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-07-19 18:34:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 375. [2022-07-19 18:34:18,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 369 states have (on average 1.3143631436314362) internal successors, (485), 374 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 485 transitions. [2022-07-19 18:34:18,057 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 485 transitions. Word has length 98 [2022-07-19 18:34:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:18,058 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 485 transitions. [2022-07-19 18:34:18,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 485 transitions. [2022-07-19 18:34:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:34:18,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:18,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:18,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-19 18:34:18,059 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:18,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:18,059 INFO L85 PathProgramCache]: Analyzing trace with hash -798114932, now seen corresponding path program 1 times [2022-07-19 18:34:18,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:18,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240978381] [2022-07-19 18:34:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:18,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240978381] [2022-07-19 18:34:18,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240978381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:18,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:18,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:34:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053495428] [2022-07-19 18:34:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:18,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:18,235 INFO L87 Difference]: Start difference. First operand 375 states and 485 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:21,844 INFO L93 Difference]: Finished difference Result 1963 states and 2815 transitions. [2022-07-19 18:34:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-19 18:34:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-19 18:34:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:21,847 INFO L225 Difference]: With dead ends: 1963 [2022-07-19 18:34:21,847 INFO L226 Difference]: Without dead ends: 1787 [2022-07-19 18:34:21,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 18:34:21,848 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 4259 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:21,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 1499 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 18:34:21,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2022-07-19 18:34:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 383. [2022-07-19 18:34:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 377 states have (on average 1.3076923076923077) internal successors, (493), 382 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:22,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 493 transitions. [2022-07-19 18:34:22,158 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 493 transitions. Word has length 99 [2022-07-19 18:34:22,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:22,158 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 493 transitions. [2022-07-19 18:34:22,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 493 transitions. [2022-07-19 18:34:22,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:34:22,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:22,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-19 18:34:22,159 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:22,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:22,159 INFO L85 PathProgramCache]: Analyzing trace with hash -595534477, now seen corresponding path program 1 times [2022-07-19 18:34:22,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:22,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370242565] [2022-07-19 18:34:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:22,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:22,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370242565] [2022-07-19 18:34:22,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370242565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:22,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:22,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:34:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7797493] [2022-07-19 18:34:22,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:22,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:34:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:34:22,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:34:22,239 INFO L87 Difference]: Start difference. First operand 383 states and 493 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:23,212 INFO L93 Difference]: Finished difference Result 598 states and 792 transitions. [2022-07-19 18:34:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:34:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-19 18:34:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:23,213 INFO L225 Difference]: With dead ends: 598 [2022-07-19 18:34:23,213 INFO L226 Difference]: Without dead ends: 591 [2022-07-19 18:34:23,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-19 18:34:23,214 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1180 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:23,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1203 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:34:23,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-19 18:34:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 383. [2022-07-19 18:34:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 377 states have (on average 1.3050397877984086) internal successors, (492), 382 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 492 transitions. [2022-07-19 18:34:23,514 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 492 transitions. Word has length 99 [2022-07-19 18:34:23,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:23,514 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 492 transitions. [2022-07-19 18:34:23,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 492 transitions. [2022-07-19 18:34:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:34:23,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:23,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:23,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-19 18:34:23,515 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1808646559, now seen corresponding path program 1 times [2022-07-19 18:34:23,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:23,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22463898] [2022-07-19 18:34:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:23,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:23,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:23,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22463898] [2022-07-19 18:34:23,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22463898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:23,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:23,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:34:23,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929800927] [2022-07-19 18:34:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:23,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:23,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:23,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:23,771 INFO L87 Difference]: Start difference. First operand 383 states and 492 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:24,934 INFO L93 Difference]: Finished difference Result 743 states and 1008 transitions. [2022-07-19 18:34:24,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:34:24,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-19 18:34:24,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:24,935 INFO L225 Difference]: With dead ends: 743 [2022-07-19 18:34:24,935 INFO L226 Difference]: Without dead ends: 591 [2022-07-19 18:34:24,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:34:24,936 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1348 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:24,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1601 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 18:34:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-19 18:34:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 371. [2022-07-19 18:34:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 366 states have (on average 1.2978142076502732) internal successors, (475), 370 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:25,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 475 transitions. [2022-07-19 18:34:25,243 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 475 transitions. Word has length 99 [2022-07-19 18:34:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:25,243 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 475 transitions. [2022-07-19 18:34:25,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 475 transitions. [2022-07-19 18:34:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 18:34:25,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:25,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:25,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-19 18:34:25,244 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:25,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:25,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1661193720, now seen corresponding path program 1 times [2022-07-19 18:34:25,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:25,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755299251] [2022-07-19 18:34:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:25,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:25,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755299251] [2022-07-19 18:34:25,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755299251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:25,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:25,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:34:25,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417160746] [2022-07-19 18:34:25,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:25,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:25,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:25,442 INFO L87 Difference]: Start difference. First operand 371 states and 475 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:26,346 INFO L93 Difference]: Finished difference Result 725 states and 987 transitions. [2022-07-19 18:34:26,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:34:26,347 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-19 18:34:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:26,347 INFO L225 Difference]: With dead ends: 725 [2022-07-19 18:34:26,347 INFO L226 Difference]: Without dead ends: 559 [2022-07-19 18:34:26,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-07-19 18:34:26,348 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 722 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:26,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1514 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:34:26,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-07-19 18:34:26,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 341. [2022-07-19 18:34:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 337 states have (on average 1.2967359050445104) internal successors, (437), 340 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:26,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 437 transitions. [2022-07-19 18:34:26,646 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 437 transitions. Word has length 99 [2022-07-19 18:34:26,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:26,646 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 437 transitions. [2022-07-19 18:34:26,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 437 transitions. [2022-07-19 18:34:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:34:26,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:26,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:26,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-19 18:34:26,647 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1179990787, now seen corresponding path program 1 times [2022-07-19 18:34:26,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:26,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154077727] [2022-07-19 18:34:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:26,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:26,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:26,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154077727] [2022-07-19 18:34:26,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154077727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:26,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:26,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:34:26,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197099554] [2022-07-19 18:34:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:26,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:34:26,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:34:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:34:26,728 INFO L87 Difference]: Start difference. First operand 341 states and 437 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:27,749 INFO L93 Difference]: Finished difference Result 715 states and 973 transitions. [2022-07-19 18:34:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 18:34:27,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-07-19 18:34:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:27,750 INFO L225 Difference]: With dead ends: 715 [2022-07-19 18:34:27,750 INFO L226 Difference]: Without dead ends: 539 [2022-07-19 18:34:27,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-19 18:34:27,751 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 913 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:27,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 835 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:34:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-07-19 18:34:28,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 333. [2022-07-19 18:34:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 329 states have (on average 1.297872340425532) internal successors, (427), 332 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 427 transitions. [2022-07-19 18:34:28,050 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 427 transitions. Word has length 100 [2022-07-19 18:34:28,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:28,051 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 427 transitions. [2022-07-19 18:34:28,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:28,051 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 427 transitions. [2022-07-19 18:34:28,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-19 18:34:28,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:28,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:28,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-19 18:34:28,051 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1356067843, now seen corresponding path program 1 times [2022-07-19 18:34:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659750101] [2022-07-19 18:34:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:28,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659750101] [2022-07-19 18:34:28,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659750101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:28,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:28,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:34:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730856938] [2022-07-19 18:34:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:28,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:28,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:28,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:28,203 INFO L87 Difference]: Start difference. First operand 333 states and 427 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:30,328 INFO L93 Difference]: Finished difference Result 903 states and 1247 transitions. [2022-07-19 18:34:30,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:34:30,329 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-07-19 18:34:30,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:30,330 INFO L225 Difference]: With dead ends: 903 [2022-07-19 18:34:30,330 INFO L226 Difference]: Without dead ends: 896 [2022-07-19 18:34:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-19 18:34:30,330 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 2020 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:30,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 1106 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:34:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-07-19 18:34:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 337. [2022-07-19 18:34:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 333 states have (on average 1.2942942942942943) internal successors, (431), 336 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 431 transitions. [2022-07-19 18:34:30,630 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 431 transitions. Word has length 100 [2022-07-19 18:34:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:30,630 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 431 transitions. [2022-07-19 18:34:30,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 431 transitions. [2022-07-19 18:34:30,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:34:30,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:30,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:30,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-19 18:34:30,631 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:30,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:30,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1646491527, now seen corresponding path program 1 times [2022-07-19 18:34:30,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784064598] [2022-07-19 18:34:30,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:30,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:30,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784064598] [2022-07-19 18:34:30,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784064598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:30,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:30,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:34:30,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932469722] [2022-07-19 18:34:30,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:30,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:34:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:30,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:34:30,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:34:30,863 INFO L87 Difference]: Start difference. First operand 337 states and 431 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:32,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:34:32,494 INFO L93 Difference]: Finished difference Result 839 states and 1161 transitions. [2022-07-19 18:34:32,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 18:34:32,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-07-19 18:34:32,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:34:32,495 INFO L225 Difference]: With dead ends: 839 [2022-07-19 18:34:32,495 INFO L226 Difference]: Without dead ends: 833 [2022-07-19 18:34:32,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:34:32,496 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1240 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:34:32,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 3252 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 18:34:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2022-07-19 18:34:32,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 331. [2022-07-19 18:34:32,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2926829268292683) internal successors, (424), 330 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:32,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 424 transitions. [2022-07-19 18:34:32,796 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 424 transitions. Word has length 101 [2022-07-19 18:34:32,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:34:32,796 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 424 transitions. [2022-07-19 18:34:32,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:34:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 424 transitions. [2022-07-19 18:34:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 18:34:32,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:34:32,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:34:32,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-19 18:34:32,797 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-19 18:34:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:34:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2024360146, now seen corresponding path program 1 times [2022-07-19 18:34:32,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:34:32,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038989274] [2022-07-19 18:34:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:34:32,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:34:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:34:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:34:33,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:34:33,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038989274] [2022-07-19 18:34:33,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038989274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:34:33,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:34:33,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-19 18:34:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049870891] [2022-07-19 18:34:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:34:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-19 18:34:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:34:33,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-19 18:34:33,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2022-07-19 18:34:33,874 INFO L87 Difference]: Start difference. First operand 331 states and 424 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)