./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:17:03,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:17:03,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:17:03,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:17:03,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:17:03,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:17:03,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:17:03,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:17:03,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:17:03,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:17:03,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:17:03,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:17:03,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:17:03,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:17:03,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:17:03,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:17:03,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:17:03,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:17:03,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:17:03,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:17:03,328 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:17:03,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:17:03,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:17:03,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:17:03,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:17:03,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:17:03,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:17:03,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:17:03,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:17:03,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:17:03,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:17:03,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:17:03,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:17:03,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:17:03,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:17:03,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:17:03,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:17:03,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:17:03,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:17:03,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:17:03,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:17:03,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:17:03,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:17:03,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:17:03,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:17:03,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:17:03,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:17:03,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:17:03,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:17:03,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:17:03,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:17:03,369 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:17:03,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:17:03,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:17:03,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:17:03,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:17:03,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:17:03,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:17:03,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:17:03,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:17:03,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:17:03,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:17:03,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:17:03,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:17:03,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:17:03,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:17:03,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:17:03,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:17:03,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:17:03,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:17:03,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 [2022-07-12 07:17:03,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:17:03,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:17:03,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:17:03,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:17:03,560 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:17:03,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-07-12 07:17:03,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959539b35/0c3794fa97eb458a927f6fb5635e4848/FLAG0d51156c7 [2022-07-12 07:17:04,031 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:17:04,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-07-12 07:17:04,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959539b35/0c3794fa97eb458a927f6fb5635e4848/FLAG0d51156c7 [2022-07-12 07:17:04,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/959539b35/0c3794fa97eb458a927f6fb5635e4848 [2022-07-12 07:17:04,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:17:04,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:17:04,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:17:04,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:17:04,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:17:04,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1c8115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04, skipping insertion in model container [2022-07-12 07:17:04,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:17:04,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:17:04,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2022-07-12 07:17:04,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2022-07-12 07:17:04,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2022-07-12 07:17:04,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2022-07-12 07:17:04,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2022-07-12 07:17:04,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2022-07-12 07:17:04,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2022-07-12 07:17:04,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2022-07-12 07:17:04,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2022-07-12 07:17:04,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2022-07-12 07:17:04,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2022-07-12 07:17:04,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:17:04,531 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:17:04,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2022-07-12 07:17:04,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2022-07-12 07:17:04,615 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2022-07-12 07:17:04,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2022-07-12 07:17:04,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2022-07-12 07:17:04,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2022-07-12 07:17:04,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2022-07-12 07:17:04,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2022-07-12 07:17:04,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2022-07-12 07:17:04,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2022-07-12 07:17:04,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2022-07-12 07:17:04,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:17:04,748 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:17:04,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04 WrapperNode [2022-07-12 07:17:04,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:17:04,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:17:04,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:17:04,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:17:04,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,828 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1870 [2022-07-12 07:17:04,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:17:04,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:17:04,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:17:04,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:17:04,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:17:04,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:17:04,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:17:04,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:17:04,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (1/1) ... [2022-07-12 07:17:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:17:04,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:17:04,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:17:04,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 07:17:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:17:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:17:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:17:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:17:05,189 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:17:05,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:17:06,040 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:17:06,051 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:17:06,052 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:17:06,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:17:06 BoogieIcfgContainer [2022-07-12 07:17:06,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:17:06,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:17:06,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:17:06,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:17:06,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:17:04" (1/3) ... [2022-07-12 07:17:06,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267e9ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:17:06, skipping insertion in model container [2022-07-12 07:17:06,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:17:04" (2/3) ... [2022-07-12 07:17:06,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267e9ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:17:06, skipping insertion in model container [2022-07-12 07:17:06,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:17:06" (3/3) ... [2022-07-12 07:17:06,060 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-07-12 07:17:06,069 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:17:06,069 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-07-12 07:17:06,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:17:06,132 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@5e0ea223, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@18a84709 [2022-07-12 07:17:06,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-12 07:17:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-12 07:17:06,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:06,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:06,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1374718599, now seen corresponding path program 1 times [2022-07-12 07:17:06,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:06,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255504739] [2022-07-12 07:17:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:06,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:06,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255504739] [2022-07-12 07:17:06,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255504739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:06,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:06,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:17:06,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825919506] [2022-07-12 07:17:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:06,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:17:06,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:17:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:17:06,482 INFO L87 Difference]: Start difference. First operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:06,910 INFO L93 Difference]: Finished difference Result 704 states and 1191 transitions. [2022-07-12 07:17:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:17:06,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-07-12 07:17:06,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:06,930 INFO L225 Difference]: With dead ends: 704 [2022-07-12 07:17:06,930 INFO L226 Difference]: Without dead ends: 428 [2022-07-12 07:17:06,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:17:06,938 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1869 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:06,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 500 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-12 07:17:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 386. [2022-07-12 07:17:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 375 states have (on average 1.3546666666666667) internal successors, (508), 385 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 508 transitions. [2022-07-12 07:17:07,008 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 508 transitions. Word has length 59 [2022-07-12 07:17:07,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:07,008 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 508 transitions. [2022-07-12 07:17:07,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 508 transitions. [2022-07-12 07:17:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 07:17:07,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:07,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:07,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:17:07,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2133391140, now seen corresponding path program 1 times [2022-07-12 07:17:07,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:07,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330020637] [2022-07-12 07:17:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:07,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:07,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330020637] [2022-07-12 07:17:07,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330020637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:07,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:07,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:17:07,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367086218] [2022-07-12 07:17:07,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:07,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:17:07,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:17:07,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:17:07,149 INFO L87 Difference]: Start difference. First operand 386 states and 508 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:07,331 INFO L93 Difference]: Finished difference Result 681 states and 918 transitions. [2022-07-12 07:17:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:17:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-12 07:17:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:07,335 INFO L225 Difference]: With dead ends: 681 [2022-07-12 07:17:07,336 INFO L226 Difference]: Without dead ends: 366 [2022-07-12 07:17:07,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:17:07,338 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 935 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:07,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 210 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:17:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-07-12 07:17:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-07-12 07:17:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 355 states have (on average 1.3577464788732394) internal successors, (482), 365 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 482 transitions. [2022-07-12 07:17:07,365 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 482 transitions. Word has length 60 [2022-07-12 07:17:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:07,365 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 482 transitions. [2022-07-12 07:17:07,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 482 transitions. [2022-07-12 07:17:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-12 07:17:07,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:07,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:07,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:17:07,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:07,367 INFO L85 PathProgramCache]: Analyzing trace with hash 626465560, now seen corresponding path program 1 times [2022-07-12 07:17:07,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:07,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983289865] [2022-07-12 07:17:07,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:07,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:07,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983289865] [2022-07-12 07:17:07,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983289865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:07,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:07,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:17:07,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109305284] [2022-07-12 07:17:07,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:07,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:17:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:17:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:17:07,416 INFO L87 Difference]: Start difference. First operand 366 states and 482 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:07,537 INFO L93 Difference]: Finished difference Result 661 states and 890 transitions. [2022-07-12 07:17:07,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:17:07,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-07-12 07:17:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:07,538 INFO L225 Difference]: With dead ends: 661 [2022-07-12 07:17:07,538 INFO L226 Difference]: Without dead ends: 347 [2022-07-12 07:17:07,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:17:07,539 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 907 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:07,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 199 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:17:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-12 07:17:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2022-07-12 07:17:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 336 states have (on average 1.3660714285714286) internal successors, (459), 346 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 459 transitions. [2022-07-12 07:17:07,553 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 459 transitions. Word has length 61 [2022-07-12 07:17:07,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:07,553 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 459 transitions. [2022-07-12 07:17:07,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 459 transitions. [2022-07-12 07:17:07,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-12 07:17:07,554 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:07,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:07,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:17:07,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:07,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash 55190193, now seen corresponding path program 1 times [2022-07-12 07:17:07,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:07,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341955524] [2022-07-12 07:17:07,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:07,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:07,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:07,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341955524] [2022-07-12 07:17:07,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341955524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:07,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:07,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:17:07,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352428031] [2022-07-12 07:17:07,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:07,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:17:07,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:07,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:17:07,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:17:07,613 INFO L87 Difference]: Start difference. First operand 347 states and 459 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:07,730 INFO L93 Difference]: Finished difference Result 642 states and 865 transitions. [2022-07-12 07:17:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:17:07,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-07-12 07:17:07,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:07,732 INFO L225 Difference]: With dead ends: 642 [2022-07-12 07:17:07,732 INFO L226 Difference]: Without dead ends: 339 [2022-07-12 07:17:07,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:17:07,733 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 860 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:07,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 195 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:17:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-12 07:17:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2022-07-12 07:17:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3658536585365855) internal successors, (448), 338 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 448 transitions. [2022-07-12 07:17:07,747 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 448 transitions. Word has length 62 [2022-07-12 07:17:07,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:07,747 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 448 transitions. [2022-07-12 07:17:07,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 448 transitions. [2022-07-12 07:17:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 07:17:07,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:07,748 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] [2022-07-12 07:17:07,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:17:07,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:07,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:07,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1176799625, now seen corresponding path program 1 times [2022-07-12 07:17:07,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:07,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128250384] [2022-07-12 07:17:07,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:07,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:07,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:07,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128250384] [2022-07-12 07:17:07,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128250384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:07,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:07,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:07,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571478123] [2022-07-12 07:17:07,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:07,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:07,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:07,879 INFO L87 Difference]: Start difference. First operand 339 states and 448 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:08,523 INFO L93 Difference]: Finished difference Result 890 states and 1229 transitions. [2022-07-12 07:17:08,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:17:08,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-07-12 07:17:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:08,527 INFO L225 Difference]: With dead ends: 890 [2022-07-12 07:17:08,528 INFO L226 Difference]: Without dead ends: 750 [2022-07-12 07:17:08,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-12 07:17:08,530 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1772 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:08,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 1064 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:08,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-07-12 07:17:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 339. [2022-07-12 07:17:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3628048780487805) internal successors, (447), 338 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 447 transitions. [2022-07-12 07:17:08,551 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 447 transitions. Word has length 63 [2022-07-12 07:17:08,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:08,552 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 447 transitions. [2022-07-12 07:17:08,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 447 transitions. [2022-07-12 07:17:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 07:17:08,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:08,553 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] [2022-07-12 07:17:08,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:17:08,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:08,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1585644853, now seen corresponding path program 1 times [2022-07-12 07:17:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:08,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940507049] [2022-07-12 07:17:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:08,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:08,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940507049] [2022-07-12 07:17:08,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940507049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:08,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:08,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:08,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903756382] [2022-07-12 07:17:08,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:08,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:08,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:08,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:08,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:08,645 INFO L87 Difference]: Start difference. First operand 339 states and 447 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:09,154 INFO L93 Difference]: Finished difference Result 884 states and 1227 transitions. [2022-07-12 07:17:09,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:09,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-07-12 07:17:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:09,157 INFO L225 Difference]: With dead ends: 884 [2022-07-12 07:17:09,157 INFO L226 Difference]: Without dead ends: 766 [2022-07-12 07:17:09,157 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 [2022-07-12 07:17:09,158 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 984 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:09,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 996 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-12 07:17:09,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-07-12 07:17:09,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3597560975609757) internal successors, (446), 338 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 446 transitions. [2022-07-12 07:17:09,181 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 446 transitions. Word has length 63 [2022-07-12 07:17:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:09,181 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 446 transitions. [2022-07-12 07:17:09,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 446 transitions. [2022-07-12 07:17:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 07:17:09,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:09,182 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] [2022-07-12 07:17:09,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:17:09,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash 202563885, now seen corresponding path program 1 times [2022-07-12 07:17:09,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541251617] [2022-07-12 07:17:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:09,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:09,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:09,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541251617] [2022-07-12 07:17:09,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541251617] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:09,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:09,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:17:09,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72410512] [2022-07-12 07:17:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:09,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:17:09,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:17:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:17:09,247 INFO L87 Difference]: Start difference. First operand 339 states and 446 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:09,517 INFO L93 Difference]: Finished difference Result 689 states and 911 transitions. [2022-07-12 07:17:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:17:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-07-12 07:17:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:09,520 INFO L225 Difference]: With dead ends: 689 [2022-07-12 07:17:09,520 INFO L226 Difference]: Without dead ends: 504 [2022-07-12 07:17:09,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 07:17:09,521 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1469 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:09,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 448 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-07-12 07:17:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 339. [2022-07-12 07:17:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3567073170731707) internal successors, (445), 338 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 445 transitions. [2022-07-12 07:17:09,540 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 445 transitions. Word has length 63 [2022-07-12 07:17:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:09,541 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 445 transitions. [2022-07-12 07:17:09,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 445 transitions. [2022-07-12 07:17:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:09,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:09,542 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] [2022-07-12 07:17:09,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:17:09,542 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:09,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:09,542 INFO L85 PathProgramCache]: Analyzing trace with hash -620136770, now seen corresponding path program 1 times [2022-07-12 07:17:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:09,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955136802] [2022-07-12 07:17:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:09,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:09,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:09,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955136802] [2022-07-12 07:17:09,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955136802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:09,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:09,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:09,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614467196] [2022-07-12 07:17:09,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:09,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:09,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:09,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:09,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:09,616 INFO L87 Difference]: Start difference. First operand 339 states and 445 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:10,200 INFO L93 Difference]: Finished difference Result 857 states and 1181 transitions. [2022-07-12 07:17:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:10,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:10,203 INFO L225 Difference]: With dead ends: 857 [2022-07-12 07:17:10,203 INFO L226 Difference]: Without dead ends: 746 [2022-07-12 07:17:10,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:17:10,205 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1778 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:10,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 953 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:10,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-12 07:17:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-07-12 07:17:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.353658536585366) internal successors, (444), 338 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 444 transitions. [2022-07-12 07:17:10,241 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 444 transitions. Word has length 65 [2022-07-12 07:17:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:10,242 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 444 transitions. [2022-07-12 07:17:10,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 444 transitions. [2022-07-12 07:17:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:10,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:10,243 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] [2022-07-12 07:17:10,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:17:10,243 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1292060332, now seen corresponding path program 1 times [2022-07-12 07:17:10,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:10,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539272589] [2022-07-12 07:17:10,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:10,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:10,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:10,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539272589] [2022-07-12 07:17:10,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539272589] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:10,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:10,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:10,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654209259] [2022-07-12 07:17:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:10,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:10,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:10,309 INFO L87 Difference]: Start difference. First operand 339 states and 444 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:10,872 INFO L93 Difference]: Finished difference Result 889 states and 1228 transitions. [2022-07-12 07:17:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:10,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:10,875 INFO L225 Difference]: With dead ends: 889 [2022-07-12 07:17:10,875 INFO L226 Difference]: Without dead ends: 766 [2022-07-12 07:17:10,876 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 [2022-07-12 07:17:10,877 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1357 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:10,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 1116 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-12 07:17:10,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-07-12 07:17:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.350609756097561) internal successors, (443), 338 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 443 transitions. [2022-07-12 07:17:10,910 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 443 transitions. Word has length 65 [2022-07-12 07:17:10,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:10,911 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 443 transitions. [2022-07-12 07:17:10,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:10,911 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 443 transitions. [2022-07-12 07:17:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:10,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:10,912 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] [2022-07-12 07:17:10,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:17:10,912 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:10,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -109241464, now seen corresponding path program 1 times [2022-07-12 07:17:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:10,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782757628] [2022-07-12 07:17:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:10,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:11,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782757628] [2022-07-12 07:17:11,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782757628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:11,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:11,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:11,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411962222] [2022-07-12 07:17:11,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:11,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:11,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:11,025 INFO L87 Difference]: Start difference. First operand 339 states and 443 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:11,583 INFO L93 Difference]: Finished difference Result 854 states and 1176 transitions. [2022-07-12 07:17:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:11,586 INFO L225 Difference]: With dead ends: 854 [2022-07-12 07:17:11,587 INFO L226 Difference]: Without dead ends: 746 [2022-07-12 07:17:11,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:17:11,588 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1352 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:11,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1352 Valid, 973 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:11,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-12 07:17:11,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-07-12 07:17:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3475609756097562) internal successors, (442), 338 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:11,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 442 transitions. [2022-07-12 07:17:11,623 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 442 transitions. Word has length 65 [2022-07-12 07:17:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:11,624 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 442 transitions. [2022-07-12 07:17:11,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 442 transitions. [2022-07-12 07:17:11,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:11,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:11,625 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] [2022-07-12 07:17:11,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:17:11,625 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1375273345, now seen corresponding path program 1 times [2022-07-12 07:17:11,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554463489] [2022-07-12 07:17:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:11,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:11,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554463489] [2022-07-12 07:17:11,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554463489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:11,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:11,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069587817] [2022-07-12 07:17:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:11,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:11,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:11,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:11,699 INFO L87 Difference]: Start difference. First operand 339 states and 442 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:12,217 INFO L93 Difference]: Finished difference Result 751 states and 1019 transitions. [2022-07-12 07:17:12,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:12,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:12,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:12,220 INFO L225 Difference]: With dead ends: 751 [2022-07-12 07:17:12,220 INFO L226 Difference]: Without dead ends: 746 [2022-07-12 07:17:12,221 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 [2022-07-12 07:17:12,221 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1245 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:12,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 1118 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-12 07:17:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-07-12 07:17:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3445121951219512) internal successors, (441), 338 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 441 transitions. [2022-07-12 07:17:12,248 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 441 transitions. Word has length 65 [2022-07-12 07:17:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:12,249 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 441 transitions. [2022-07-12 07:17:12,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 441 transitions. [2022-07-12 07:17:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:12,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:12,249 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] [2022-07-12 07:17:12,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:17:12,249 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:12,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash -636059456, now seen corresponding path program 1 times [2022-07-12 07:17:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:12,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268042410] [2022-07-12 07:17:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:12,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:12,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268042410] [2022-07-12 07:17:12,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268042410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:12,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:12,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:12,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623837206] [2022-07-12 07:17:12,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:12,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:12,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:12,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:12,330 INFO L87 Difference]: Start difference. First operand 339 states and 441 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:12,824 INFO L93 Difference]: Finished difference Result 786 states and 1086 transitions. [2022-07-12 07:17:12,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 07:17:12,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:12,825 INFO L225 Difference]: With dead ends: 786 [2022-07-12 07:17:12,826 INFO L226 Difference]: Without dead ends: 616 [2022-07-12 07:17:12,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:17:12,826 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1399 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:12,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 1115 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-07-12 07:17:12,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 339. [2022-07-12 07:17:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3384146341463414) internal successors, (439), 338 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 439 transitions. [2022-07-12 07:17:12,854 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 439 transitions. Word has length 65 [2022-07-12 07:17:12,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:12,854 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 439 transitions. [2022-07-12 07:17:12,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:12,854 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 439 transitions. [2022-07-12 07:17:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:12,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:12,854 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] [2022-07-12 07:17:12,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:17:12,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:12,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2058271748, now seen corresponding path program 1 times [2022-07-12 07:17:12,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:12,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063703028] [2022-07-12 07:17:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:12,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:12,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:12,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063703028] [2022-07-12 07:17:12,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063703028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:12,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:12,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:12,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575117430] [2022-07-12 07:17:12,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:12,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:12,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:12,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:12,925 INFO L87 Difference]: Start difference. First operand 339 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:13,500 INFO L93 Difference]: Finished difference Result 751 states and 1015 transitions. [2022-07-12 07:17:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:13,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:13,503 INFO L225 Difference]: With dead ends: 751 [2022-07-12 07:17:13,503 INFO L226 Difference]: Without dead ends: 746 [2022-07-12 07:17:13,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:17:13,504 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1513 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:13,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1124 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:13,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-12 07:17:13,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 339. [2022-07-12 07:17:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.3323170731707317) internal successors, (437), 338 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) [2022-07-12 07:17:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 437 transitions. [2022-07-12 07:17:13,539 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 437 transitions. Word has length 65 [2022-07-12 07:17:13,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:13,539 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 437 transitions. [2022-07-12 07:17:13,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:13,539 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 437 transitions. [2022-07-12 07:17:13,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:17:13,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:13,540 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] [2022-07-12 07:17:13,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:17:13,540 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash -324498446, now seen corresponding path program 1 times [2022-07-12 07:17:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:13,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234847243] [2022-07-12 07:17:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:13,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:13,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234847243] [2022-07-12 07:17:13,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234847243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:13,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:13,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125542328] [2022-07-12 07:17:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:13,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:13,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:13,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:13,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:13,625 INFO L87 Difference]: Start difference. First operand 339 states and 437 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:14,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:14,172 INFO L93 Difference]: Finished difference Result 783 states and 1061 transitions. [2022-07-12 07:17:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:14,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-12 07:17:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:14,174 INFO L225 Difference]: With dead ends: 783 [2022-07-12 07:17:14,174 INFO L226 Difference]: Without dead ends: 766 [2022-07-12 07:17:14,175 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 [2022-07-12 07:17:14,175 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1119 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:14,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1295 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-12 07:17:14,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 339. [2022-07-12 07:17:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 328 states have (on average 1.326219512195122) internal successors, (435), 338 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 435 transitions. [2022-07-12 07:17:14,207 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 435 transitions. Word has length 65 [2022-07-12 07:17:14,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:14,207 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 435 transitions. [2022-07-12 07:17:14,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:14,207 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 435 transitions. [2022-07-12 07:17:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:17:14,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:14,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:14,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:17:14,208 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash -809481061, now seen corresponding path program 1 times [2022-07-12 07:17:14,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:14,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130396820] [2022-07-12 07:17:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:14,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:14,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130396820] [2022-07-12 07:17:14,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130396820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:14,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:14,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:17:14,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672012195] [2022-07-12 07:17:14,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:14,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:17:14,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:17:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:17:14,438 INFO L87 Difference]: Start difference. First operand 339 states and 435 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:15,045 INFO L93 Difference]: Finished difference Result 861 states and 1156 transitions. [2022-07-12 07:17:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:15,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:17:15,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:15,048 INFO L225 Difference]: With dead ends: 861 [2022-07-12 07:17:15,048 INFO L226 Difference]: Without dead ends: 692 [2022-07-12 07:17:15,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:17:15,049 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1254 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:15,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 1555 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-07-12 07:17:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 276. [2022-07-12 07:17:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 269 states have (on average 1.3308550185873607) internal successors, (358), 275 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 358 transitions. [2022-07-12 07:17:15,094 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 358 transitions. Word has length 67 [2022-07-12 07:17:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:15,095 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 358 transitions. [2022-07-12 07:17:15,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 358 transitions. [2022-07-12 07:17:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:17:15,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:15,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:15,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:17:15,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash -827796874, now seen corresponding path program 1 times [2022-07-12 07:17:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:15,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089816524] [2022-07-12 07:17:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:15,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089816524] [2022-07-12 07:17:15,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089816524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:15,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:15,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-12 07:17:15,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199440991] [2022-07-12 07:17:15,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:15,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 07:17:15,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:15,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 07:17:15,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-12 07:17:15,433 INFO L87 Difference]: Start difference. First operand 276 states and 358 transitions. Second operand has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:16,777 INFO L93 Difference]: Finished difference Result 703 states and 941 transitions. [2022-07-12 07:17:16,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:17:16,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:17:16,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:16,780 INFO L225 Difference]: With dead ends: 703 [2022-07-12 07:17:16,780 INFO L226 Difference]: Without dead ends: 593 [2022-07-12 07:17:16,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2022-07-12 07:17:16,782 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 2012 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:16,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 1790 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:16,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-07-12 07:17:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 274. [2022-07-12 07:17:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 267 states have (on average 1.3258426966292134) internal successors, (354), 273 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 354 transitions. [2022-07-12 07:17:16,848 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 354 transitions. Word has length 67 [2022-07-12 07:17:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:16,848 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 354 transitions. [2022-07-12 07:17:16,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.1875) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 354 transitions. [2022-07-12 07:17:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:17:16,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:16,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:16,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:17:16,851 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:16,852 INFO L85 PathProgramCache]: Analyzing trace with hash 455689729, now seen corresponding path program 1 times [2022-07-12 07:17:16,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:16,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102834258] [2022-07-12 07:17:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:17,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:17,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102834258] [2022-07-12 07:17:17,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102834258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:17,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:17,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-12 07:17:17,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527802774] [2022-07-12 07:17:17,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:17,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-12 07:17:17,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:17,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-12 07:17:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-12 07:17:17,325 INFO L87 Difference]: Start difference. First operand 274 states and 354 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:19,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:19,160 INFO L93 Difference]: Finished difference Result 649 states and 855 transitions. [2022-07-12 07:17:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 07:17:19,160 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:17:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:19,163 INFO L225 Difference]: With dead ends: 649 [2022-07-12 07:17:19,163 INFO L226 Difference]: Without dead ends: 645 [2022-07-12 07:17:19,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 07:17:19,164 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1494 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:19,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 2482 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 07:17:19,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-07-12 07:17:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 280. [2022-07-12 07:17:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.326007326007326) internal successors, (362), 279 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 362 transitions. [2022-07-12 07:17:19,228 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 362 transitions. Word has length 67 [2022-07-12 07:17:19,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:19,228 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 362 transitions. [2022-07-12 07:17:19,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 362 transitions. [2022-07-12 07:17:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:17:19,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:19,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:17:19,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:17:19,230 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:19,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1324827419, now seen corresponding path program 1 times [2022-07-12 07:17:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:19,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163949285] [2022-07-12 07:17:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:19,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:19,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:19,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163949285] [2022-07-12 07:17:19,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163949285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:19,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:19,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-12 07:17:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915686785] [2022-07-12 07:17:19,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:19,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-12 07:17:19,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-12 07:17:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:17:19,648 INFO L87 Difference]: Start difference. First operand 280 states and 362 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:21,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:21,041 INFO L93 Difference]: Finished difference Result 404 states and 536 transitions. [2022-07-12 07:17:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-12 07:17:21,041 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:17:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:21,043 INFO L225 Difference]: With dead ends: 404 [2022-07-12 07:17:21,043 INFO L226 Difference]: Without dead ends: 291 [2022-07-12 07:17:21,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=1519, Unknown=0, NotChecked=0, Total=1806 [2022-07-12 07:17:21,044 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 427 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:21,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 2701 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 07:17:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-07-12 07:17:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2022-07-12 07:17:21,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 272 states have (on average 1.3198529411764706) internal successors, (359), 278 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 359 transitions. [2022-07-12 07:17:21,116 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 359 transitions. Word has length 67 [2022-07-12 07:17:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 359 transitions. [2022-07-12 07:17:21,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 359 transitions. [2022-07-12 07:17:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:21,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:21,118 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] [2022-07-12 07:17:21,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:17:21,118 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash -922376210, now seen corresponding path program 1 times [2022-07-12 07:17:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:21,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880597343] [2022-07-12 07:17:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:21,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:21,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880597343] [2022-07-12 07:17:21,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880597343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:21,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:21,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:17:21,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37562217] [2022-07-12 07:17:21,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:21,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:17:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:17:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:17:21,386 INFO L87 Difference]: Start difference. First operand 279 states and 359 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:22,135 INFO L93 Difference]: Finished difference Result 818 states and 1107 transitions. [2022-07-12 07:17:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:17:22,135 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:22,143 INFO L225 Difference]: With dead ends: 818 [2022-07-12 07:17:22,143 INFO L226 Difference]: Without dead ends: 708 [2022-07-12 07:17:22,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-12 07:17:22,147 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1130 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:22,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1554 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2022-07-12 07:17:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 271. [2022-07-12 07:17:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 265 states have (on average 1.3132075471698113) internal successors, (348), 270 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 348 transitions. [2022-07-12 07:17:22,200 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 348 transitions. Word has length 68 [2022-07-12 07:17:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:22,201 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 348 transitions. [2022-07-12 07:17:22,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:22,201 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 348 transitions. [2022-07-12 07:17:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:22,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:22,201 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] [2022-07-12 07:17:22,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:17:22,202 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:22,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:22,202 INFO L85 PathProgramCache]: Analyzing trace with hash 361110393, now seen corresponding path program 1 times [2022-07-12 07:17:22,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:22,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112538495] [2022-07-12 07:17:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:22,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112538495] [2022-07-12 07:17:22,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112538495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:22,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:22,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-12 07:17:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180638953] [2022-07-12 07:17:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:22,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 07:17:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:22,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 07:17:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-07-12 07:17:22,546 INFO L87 Difference]: Start difference. First operand 271 states and 348 transitions. Second operand has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:23,876 INFO L93 Difference]: Finished difference Result 604 states and 801 transitions. [2022-07-12 07:17:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 07:17:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:23,878 INFO L225 Difference]: With dead ends: 604 [2022-07-12 07:17:23,878 INFO L226 Difference]: Without dead ends: 600 [2022-07-12 07:17:23,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-07-12 07:17:23,879 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1653 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:23,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 2251 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:17:23,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-07-12 07:17:23,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 271. [2022-07-12 07:17:23,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 265 states have (on average 1.3132075471698113) internal successors, (348), 270 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 348 transitions. [2022-07-12 07:17:23,935 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 348 transitions. Word has length 68 [2022-07-12 07:17:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:23,936 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 348 transitions. [2022-07-12 07:17:23,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.25) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 348 transitions. [2022-07-12 07:17:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:23,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:23,939 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] [2022-07-12 07:17:23,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:17:23,939 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:23,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1419406755, now seen corresponding path program 1 times [2022-07-12 07:17:23,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:23,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266348290] [2022-07-12 07:17:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:23,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:24,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:24,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266348290] [2022-07-12 07:17:24,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266348290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:24,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:24,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-12 07:17:24,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640294170] [2022-07-12 07:17:24,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:24,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 07:17:24,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 07:17:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-12 07:17:24,243 INFO L87 Difference]: Start difference. First operand 271 states and 348 transitions. Second operand has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:24,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:24,843 INFO L93 Difference]: Finished difference Result 550 states and 739 transitions. [2022-07-12 07:17:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 07:17:24,843 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:24,844 INFO L225 Difference]: With dead ends: 550 [2022-07-12 07:17:24,844 INFO L226 Difference]: Without dead ends: 405 [2022-07-12 07:17:24,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:17:24,845 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 411 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:24,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 2175 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-12 07:17:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 262. [2022-07-12 07:17:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.3046875) internal successors, (334), 261 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 334 transitions. [2022-07-12 07:17:24,901 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 334 transitions. Word has length 68 [2022-07-12 07:17:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:24,901 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 334 transitions. [2022-07-12 07:17:24,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.533333333333333) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 334 transitions. [2022-07-12 07:17:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:24,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:24,902 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] [2022-07-12 07:17:24,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:17:24,902 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash 823611388, now seen corresponding path program 1 times [2022-07-12 07:17:24,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:24,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582550618] [2022-07-12 07:17:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:24,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:24,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:24,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582550618] [2022-07-12 07:17:24,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582550618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:24,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:24,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:24,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294431767] [2022-07-12 07:17:24,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:24,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:24,971 INFO L87 Difference]: Start difference. First operand 262 states and 334 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:25,345 INFO L93 Difference]: Finished difference Result 419 states and 546 transitions. [2022-07-12 07:17:25,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:17:25,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:25,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:25,347 INFO L225 Difference]: With dead ends: 419 [2022-07-12 07:17:25,347 INFO L226 Difference]: Without dead ends: 412 [2022-07-12 07:17:25,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-12 07:17:25,347 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 1140 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:25,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 561 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:25,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-12 07:17:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 262. [2022-07-12 07:17:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.30078125) internal successors, (333), 261 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 333 transitions. [2022-07-12 07:17:25,407 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 333 transitions. Word has length 68 [2022-07-12 07:17:25,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:25,408 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 333 transitions. [2022-07-12 07:17:25,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 333 transitions. [2022-07-12 07:17:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:25,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:25,409 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] [2022-07-12 07:17:25,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:17:25,409 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:25,409 INFO L85 PathProgramCache]: Analyzing trace with hash 520441226, now seen corresponding path program 1 times [2022-07-12 07:17:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:25,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821529612] [2022-07-12 07:17:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:25,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:25,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821529612] [2022-07-12 07:17:25,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821529612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:25,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:25,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:25,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530848820] [2022-07-12 07:17:25,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:25,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:25,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:25,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:25,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:25,490 INFO L87 Difference]: Start difference. First operand 262 states and 333 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:25,909 INFO L93 Difference]: Finished difference Result 564 states and 755 transitions. [2022-07-12 07:17:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:17:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:25,912 INFO L225 Difference]: With dead ends: 564 [2022-07-12 07:17:25,912 INFO L226 Difference]: Without dead ends: 428 [2022-07-12 07:17:25,912 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 [2022-07-12 07:17:25,913 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 757 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:25,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 674 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-07-12 07:17:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 262. [2022-07-12 07:17:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.29296875) internal successors, (331), 261 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 331 transitions. [2022-07-12 07:17:25,990 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 331 transitions. Word has length 68 [2022-07-12 07:17:25,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:25,990 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 331 transitions. [2022-07-12 07:17:25,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 331 transitions. [2022-07-12 07:17:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:25,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:25,995 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] [2022-07-12 07:17:25,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:17:25,995 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1956990499, now seen corresponding path program 1 times [2022-07-12 07:17:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:25,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112796054] [2022-07-12 07:17:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:25,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:26,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:26,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112796054] [2022-07-12 07:17:26,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112796054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:26,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:26,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:17:26,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845950751] [2022-07-12 07:17:26,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:26,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:17:26,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:26,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:17:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:26,077 INFO L87 Difference]: Start difference. First operand 262 states and 331 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:26,537 INFO L93 Difference]: Finished difference Result 419 states and 543 transitions. [2022-07-12 07:17:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:17:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:26,540 INFO L225 Difference]: With dead ends: 419 [2022-07-12 07:17:26,540 INFO L226 Difference]: Without dead ends: 412 [2022-07-12 07:17:26,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-12 07:17:26,541 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 840 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:26,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 775 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:26,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-12 07:17:26,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 262. [2022-07-12 07:17:26,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.28515625) internal successors, (329), 261 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 329 transitions. [2022-07-12 07:17:26,635 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 329 transitions. Word has length 68 [2022-07-12 07:17:26,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:26,635 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 329 transitions. [2022-07-12 07:17:26,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:26,635 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 329 transitions. [2022-07-12 07:17:26,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:26,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:26,636 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] [2022-07-12 07:17:26,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:17:26,636 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:26,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1580596319, now seen corresponding path program 1 times [2022-07-12 07:17:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:26,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456539123] [2022-07-12 07:17:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:26,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:26,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:26,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456539123] [2022-07-12 07:17:26,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456539123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:26,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:26,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:17:26,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48101242] [2022-07-12 07:17:26,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:26,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:17:26,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:26,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:17:26,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:17:26,850 INFO L87 Difference]: Start difference. First operand 262 states and 329 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:27,494 INFO L93 Difference]: Finished difference Result 424 states and 545 transitions. [2022-07-12 07:17:27,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:17:27,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:27,496 INFO L225 Difference]: With dead ends: 424 [2022-07-12 07:17:27,496 INFO L226 Difference]: Without dead ends: 420 [2022-07-12 07:17:27,496 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 [2022-07-12 07:17:27,497 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 977 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:27,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 1240 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-07-12 07:17:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 252. [2022-07-12 07:17:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.2874493927125505) internal successors, (318), 251 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 318 transitions. [2022-07-12 07:17:27,588 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 318 transitions. Word has length 68 [2022-07-12 07:17:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:27,588 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 318 transitions. [2022-07-12 07:17:27,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 318 transitions. [2022-07-12 07:17:27,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:17:27,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:27,590 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] [2022-07-12 07:17:27,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:17:27,590 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1417579687, now seen corresponding path program 1 times [2022-07-12 07:17:27,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:27,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084462611] [2022-07-12 07:17:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:27,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:27,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084462611] [2022-07-12 07:17:27,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084462611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:27,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:27,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:17:27,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447853508] [2022-07-12 07:17:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:27,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:17:27,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:27,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:17:27,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:17:27,804 INFO L87 Difference]: Start difference. First operand 252 states and 318 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:28,316 INFO L93 Difference]: Finished difference Result 414 states and 541 transitions. [2022-07-12 07:17:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:17:28,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-12 07:17:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:28,318 INFO L225 Difference]: With dead ends: 414 [2022-07-12 07:17:28,318 INFO L226 Difference]: Without dead ends: 386 [2022-07-12 07:17:28,318 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 [2022-07-12 07:17:28,319 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 689 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:28,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1589 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:17:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-12 07:17:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 224. [2022-07-12 07:17:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.3031674208144797) internal successors, (288), 223 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:28,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2022-07-12 07:17:28,401 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 68 [2022-07-12 07:17:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:28,402 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2022-07-12 07:17:28,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2022-07-12 07:17:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:17:28,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:28,403 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] [2022-07-12 07:17:28,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:17:28,403 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:28,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1997555533, now seen corresponding path program 1 times [2022-07-12 07:17:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:28,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29769102] [2022-07-12 07:17:28,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:28,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:28,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29769102] [2022-07-12 07:17:28,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29769102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:28,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:28,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:17:28,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602241335] [2022-07-12 07:17:28,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:28,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:17:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:17:28,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:17:28,680 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:30,019 INFO L93 Difference]: Finished difference Result 1052 states and 1485 transitions. [2022-07-12 07:17:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 07:17:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-07-12 07:17:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:30,022 INFO L225 Difference]: With dead ends: 1052 [2022-07-12 07:17:30,023 INFO L226 Difference]: Without dead ends: 1046 [2022-07-12 07:17:30,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:17:30,024 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1202 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:30,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 2834 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:17:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-07-12 07:17:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 218. [2022-07-12 07:17:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 216 states have (on average 1.3009259259259258) internal successors, (281), 217 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:30,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 281 transitions. [2022-07-12 07:17:30,091 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 281 transitions. Word has length 70 [2022-07-12 07:17:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:30,091 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 281 transitions. [2022-07-12 07:17:30,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2022-07-12 07:17:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:17:30,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:30,092 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] [2022-07-12 07:17:30,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:17:30,092 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1662348756, now seen corresponding path program 1 times [2022-07-12 07:17:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280634044] [2022-07-12 07:17:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:30,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:30,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280634044] [2022-07-12 07:17:30,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280634044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:30,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:30,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-12 07:17:30,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524795875] [2022-07-12 07:17:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:30,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 07:17:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 07:17:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:17:30,493 INFO L87 Difference]: Start difference. First operand 218 states and 281 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:31,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:31,743 INFO L93 Difference]: Finished difference Result 250 states and 314 transitions. [2022-07-12 07:17:31,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 07:17:31,743 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-07-12 07:17:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:31,744 INFO L225 Difference]: With dead ends: 250 [2022-07-12 07:17:31,744 INFO L226 Difference]: Without dead ends: 242 [2022-07-12 07:17:31,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=282, Invalid=1358, Unknown=0, NotChecked=0, Total=1640 [2022-07-12 07:17:31,745 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 313 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:31,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1822 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:17:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-07-12 07:17:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 227. [2022-07-12 07:17:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 225 states have (on average 1.2977777777777777) internal successors, (292), 226 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 292 transitions. [2022-07-12 07:17:31,835 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 292 transitions. Word has length 70 [2022-07-12 07:17:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:31,836 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 292 transitions. [2022-07-12 07:17:31,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 292 transitions. [2022-07-12 07:17:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 07:17:31,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:31,837 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] [2022-07-12 07:17:31,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:17:31,837 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:31,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1776801356, now seen corresponding path program 1 times [2022-07-12 07:17:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:31,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867657908] [2022-07-12 07:17:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:31,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:32,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867657908] [2022-07-12 07:17:32,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867657908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:32,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:32,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:17:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091938733] [2022-07-12 07:17:32,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:32,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:17:32,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:17:32,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:17:32,091 INFO L87 Difference]: Start difference. First operand 227 states and 292 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:32,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:32,946 INFO L93 Difference]: Finished difference Result 629 states and 864 transitions. [2022-07-12 07:17:32,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:17:32,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-07-12 07:17:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:32,948 INFO L225 Difference]: With dead ends: 629 [2022-07-12 07:17:32,948 INFO L226 Difference]: Without dead ends: 614 [2022-07-12 07:17:32,949 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 [2022-07-12 07:17:32,949 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 918 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:32,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1692 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:17:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-07-12 07:17:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 206. [2022-07-12 07:17:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.302439024390244) internal successors, (267), 205 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 267 transitions. [2022-07-12 07:17:33,053 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 267 transitions. Word has length 71 [2022-07-12 07:17:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:33,054 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 267 transitions. [2022-07-12 07:17:33,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 267 transitions. [2022-07-12 07:17:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-12 07:17:33,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:33,055 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] [2022-07-12 07:17:33,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:17:33,055 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash 161471129, now seen corresponding path program 1 times [2022-07-12 07:17:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:33,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376698255] [2022-07-12 07:17:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:33,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:33,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:33,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376698255] [2022-07-12 07:17:33,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376698255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:33,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:33,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:33,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682445373] [2022-07-12 07:17:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:33,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:33,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:33,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:33,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:33,113 INFO L87 Difference]: Start difference. First operand 206 states and 267 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:33,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:33,790 INFO L93 Difference]: Finished difference Result 1054 states and 1531 transitions. [2022-07-12 07:17:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:17:33,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-12 07:17:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:33,792 INFO L225 Difference]: With dead ends: 1054 [2022-07-12 07:17:33,792 INFO L226 Difference]: Without dead ends: 948 [2022-07-12 07:17:33,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:17:33,794 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 843 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:33,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1274 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:17:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-07-12 07:17:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 310. [2022-07-12 07:17:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.3592233009708738) internal successors, (420), 309 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 420 transitions. [2022-07-12 07:17:33,911 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 420 transitions. Word has length 93 [2022-07-12 07:17:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:33,911 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 420 transitions. [2022-07-12 07:17:33,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:33,911 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 420 transitions. [2022-07-12 07:17:33,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:33,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:33,912 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] [2022-07-12 07:17:33,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:17:33,912 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash -880942767, now seen corresponding path program 1 times [2022-07-12 07:17:33,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:33,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142610570] [2022-07-12 07:17:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:33,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:33,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:33,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:33,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142610570] [2022-07-12 07:17:33,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142610570] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:33,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:33,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:33,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140231225] [2022-07-12 07:17:33,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:33,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:33,955 INFO L87 Difference]: Start difference. First operand 310 states and 420 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:34,643 INFO L93 Difference]: Finished difference Result 1256 states and 1818 transitions. [2022-07-12 07:17:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:17:34,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-07-12 07:17:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:34,646 INFO L225 Difference]: With dead ends: 1256 [2022-07-12 07:17:34,647 INFO L226 Difference]: Without dead ends: 1046 [2022-07-12 07:17:34,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:34,648 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 649 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:34,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 777 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:34,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-07-12 07:17:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 518. [2022-07-12 07:17:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 517 states have (on average 1.4081237911025144) internal successors, (728), 517 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 728 transitions. [2022-07-12 07:17:34,985 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 728 transitions. Word has length 95 [2022-07-12 07:17:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:34,985 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 728 transitions. [2022-07-12 07:17:34,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 728 transitions. [2022-07-12 07:17:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:34,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:34,987 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] [2022-07-12 07:17:34,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 07:17:34,987 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:34,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash 284809815, now seen corresponding path program 1 times [2022-07-12 07:17:34,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:34,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311359093] [2022-07-12 07:17:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:34,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:35,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:35,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:35,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311359093] [2022-07-12 07:17:35,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311359093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:35,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:35,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:35,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130964433] [2022-07-12 07:17:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:35,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:35,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:35,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:35,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:35,051 INFO L87 Difference]: Start difference. First operand 518 states and 728 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:35,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:35,849 INFO L93 Difference]: Finished difference Result 1464 states and 2126 transitions. [2022-07-12 07:17:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:17:35,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-07-12 07:17:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:35,853 INFO L225 Difference]: With dead ends: 1464 [2022-07-12 07:17:35,853 INFO L226 Difference]: Without dead ends: 1254 [2022-07-12 07:17:35,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:35,855 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 650 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:35,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 708 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-07-12 07:17:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 830. [2022-07-12 07:17:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.4342581423401688) internal successors, (1189), 829 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) [2022-07-12 07:17:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1189 transitions. [2022-07-12 07:17:36,436 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1189 transitions. Word has length 95 [2022-07-12 07:17:36,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:36,436 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1189 transitions. [2022-07-12 07:17:36,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1189 transitions. [2022-07-12 07:17:36,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:36,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:36,438 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] [2022-07-12 07:17:36,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 07:17:36,438 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:36,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:36,438 INFO L85 PathProgramCache]: Analyzing trace with hash -736748582, now seen corresponding path program 1 times [2022-07-12 07:17:36,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:36,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517274377] [2022-07-12 07:17:36,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:36,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:36,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517274377] [2022-07-12 07:17:36,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517274377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:36,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:36,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330890051] [2022-07-12 07:17:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:36,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:36,514 INFO L87 Difference]: Start difference. First operand 830 states and 1189 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:36,990 INFO L93 Difference]: Finished difference Result 1562 states and 2270 transitions. [2022-07-12 07:17:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:17:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-07-12 07:17:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:36,992 INFO L225 Difference]: With dead ends: 1562 [2022-07-12 07:17:36,992 INFO L226 Difference]: Without dead ends: 832 [2022-07-12 07:17:36,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:17:36,993 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 486 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:36,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 378 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:36,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-07-12 07:17:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 830. [2022-07-12 07:17:37,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.4246079613992761) internal successors, (1181), 829 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:37,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1181 transitions. [2022-07-12 07:17:37,375 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1181 transitions. Word has length 95 [2022-07-12 07:17:37,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:37,375 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 1181 transitions. [2022-07-12 07:17:37,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1181 transitions. [2022-07-12 07:17:37,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:37,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:37,376 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] [2022-07-12 07:17:37,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 07:17:37,376 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:37,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1506041575, now seen corresponding path program 1 times [2022-07-12 07:17:37,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:37,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285061963] [2022-07-12 07:17:37,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:37,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:37,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285061963] [2022-07-12 07:17:37,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285061963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:37,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:37,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:17:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89016609] [2022-07-12 07:17:37,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:37,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:17:37,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:37,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:17:37,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:37,403 INFO L87 Difference]: Start difference. First operand 830 states and 1181 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:38,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:38,334 INFO L93 Difference]: Finished difference Result 2200 states and 3175 transitions. [2022-07-12 07:17:38,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:17:38,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-12 07:17:38,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:38,340 INFO L225 Difference]: With dead ends: 2200 [2022-07-12 07:17:38,340 INFO L226 Difference]: Without dead ends: 1470 [2022-07-12 07:17:38,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:38,341 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 67 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:38,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 368 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:38,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2022-07-12 07:17:39,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1468. [2022-07-12 07:17:39,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 1.4137695978186775) internal successors, (2074), 1467 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:39,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2074 transitions. [2022-07-12 07:17:39,119 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2074 transitions. Word has length 95 [2022-07-12 07:17:39,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:39,119 INFO L495 AbstractCegarLoop]: Abstraction has 1468 states and 2074 transitions. [2022-07-12 07:17:39,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2074 transitions. [2022-07-12 07:17:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:39,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:39,120 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] [2022-07-12 07:17:39,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 07:17:39,121 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1675387619, now seen corresponding path program 1 times [2022-07-12 07:17:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:39,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506143076] [2022-07-12 07:17:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:39,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:39,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506143076] [2022-07-12 07:17:39,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506143076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:39,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:39,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:39,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700469776] [2022-07-12 07:17:39,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:39,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:39,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:39,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:39,173 INFO L87 Difference]: Start difference. First operand 1468 states and 2074 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:40,601 INFO L93 Difference]: Finished difference Result 3038 states and 4335 transitions. [2022-07-12 07:17:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:17:40,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-07-12 07:17:40,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:40,607 INFO L225 Difference]: With dead ends: 3038 [2022-07-12 07:17:40,607 INFO L226 Difference]: Without dead ends: 2646 [2022-07-12 07:17:40,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:40,608 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 617 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:40,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 753 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2022-07-12 07:17:41,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 1858. [2022-07-12 07:17:41,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1857 states have (on average 1.4184168012924072) internal successors, (2634), 1857 states have internal predecessors, (2634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2634 transitions. [2022-07-12 07:17:41,576 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2634 transitions. Word has length 95 [2022-07-12 07:17:41,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:41,576 INFO L495 AbstractCegarLoop]: Abstraction has 1858 states and 2634 transitions. [2022-07-12 07:17:41,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:41,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2634 transitions. [2022-07-12 07:17:41,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 07:17:41,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:41,577 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] [2022-07-12 07:17:41,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 07:17:41,577 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1554031907, now seen corresponding path program 1 times [2022-07-12 07:17:41,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:41,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721496426] [2022-07-12 07:17:41,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:41,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:41,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:41,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721496426] [2022-07-12 07:17:41,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721496426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:41,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:41,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:17:41,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303627502] [2022-07-12 07:17:41,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:41,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:17:41,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:41,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:17:41,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:17:41,627 INFO L87 Difference]: Start difference. First operand 1858 states and 2634 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:43,674 INFO L93 Difference]: Finished difference Result 3428 states and 4895 transitions. [2022-07-12 07:17:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:17:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 [2022-07-12 07:17:43,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:43,683 INFO L225 Difference]: With dead ends: 3428 [2022-07-12 07:17:43,684 INFO L226 Difference]: Without dead ends: 3036 [2022-07-12 07:17:43,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:17:43,685 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 584 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:43,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 816 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2022-07-12 07:17:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2248. [2022-07-12 07:17:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 2247 states have (on average 1.4214508233199823) internal successors, (3194), 2247 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 3194 transitions. [2022-07-12 07:17:45,246 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 3194 transitions. Word has length 95 [2022-07-12 07:17:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:45,247 INFO L495 AbstractCegarLoop]: Abstraction has 2248 states and 3194 transitions. [2022-07-12 07:17:45,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2022-07-12 07:17:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 3194 transitions. [2022-07-12 07:17:45,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:17:45,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:45,248 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] [2022-07-12 07:17:45,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 07:17:45,249 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:45,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1423537109, now seen corresponding path program 1 times [2022-07-12 07:17:45,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:45,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739691990] [2022-07-12 07:17:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:45,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:45,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739691990] [2022-07-12 07:17:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739691990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:45,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:45,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:17:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390816972] [2022-07-12 07:17:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:45,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:17:45,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:45,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:17:45,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:45,286 INFO L87 Difference]: Start difference. First operand 2248 states and 3194 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:47,284 INFO L93 Difference]: Finished difference Result 5708 states and 8130 transitions. [2022-07-12 07:17:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:17:47,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:17:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:47,291 INFO L225 Difference]: With dead ends: 5708 [2022-07-12 07:17:47,291 INFO L226 Difference]: Without dead ends: 3560 [2022-07-12 07:17:47,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:47,293 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 78 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:47,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2022-07-12 07:17:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3382. [2022-07-12 07:17:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 1.4072759538598048) internal successors, (4758), 3381 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 4758 transitions. [2022-07-12 07:17:49,191 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 4758 transitions. Word has length 96 [2022-07-12 07:17:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:49,191 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 4758 transitions. [2022-07-12 07:17:49,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 4758 transitions. [2022-07-12 07:17:49,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 07:17:49,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:49,192 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] [2022-07-12 07:17:49,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 07:17:49,193 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:49,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1571382276, now seen corresponding path program 1 times [2022-07-12 07:17:49,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:49,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484299543] [2022-07-12 07:17:49,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:49,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:49,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:49,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484299543] [2022-07-12 07:17:49,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484299543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:49,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:49,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:17:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721736403] [2022-07-12 07:17:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:49,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:17:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:17:49,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:49,227 INFO L87 Difference]: Start difference. First operand 3382 states and 4758 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:17:53,548 INFO L93 Difference]: Finished difference Result 9682 states and 13594 transitions. [2022-07-12 07:17:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:17:53,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-12 07:17:53,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:17:53,557 INFO L225 Difference]: With dead ends: 9682 [2022-07-12 07:17:53,557 INFO L226 Difference]: Without dead ends: 6400 [2022-07-12 07:17:53,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:53,560 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 71 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:17:53,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:17:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2022-07-12 07:17:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 6134. [2022-07-12 07:17:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6133 states have (on average 1.393771400619599) internal successors, (8548), 6133 states have internal predecessors, (8548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 8548 transitions. [2022-07-12 07:17:57,092 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 8548 transitions. Word has length 97 [2022-07-12 07:17:57,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:17:57,092 INFO L495 AbstractCegarLoop]: Abstraction has 6134 states and 8548 transitions. [2022-07-12 07:17:57,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:17:57,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 8548 transitions. [2022-07-12 07:17:57,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:17:57,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:17:57,093 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] [2022-07-12 07:17:57,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 07:17:57,093 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:17:57,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:17:57,094 INFO L85 PathProgramCache]: Analyzing trace with hash 584515800, now seen corresponding path program 1 times [2022-07-12 07:17:57,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:17:57,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253090259] [2022-07-12 07:17:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:17:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:17:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:17:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:17:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:17:57,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253090259] [2022-07-12 07:17:57,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253090259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:17:57,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:17:57,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:17:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559102925] [2022-07-12 07:17:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:17:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:17:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:17:57,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:17:57,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:17:57,123 INFO L87 Difference]: Start difference. First operand 6134 states and 8548 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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) [2022-07-12 07:18:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:03,697 INFO L93 Difference]: Finished difference Result 17674 states and 24502 transitions. [2022-07-12 07:18:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:18:03,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 [2022-07-12 07:18:03,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:03,714 INFO L225 Difference]: With dead ends: 17674 [2022-07-12 07:18:03,714 INFO L226 Difference]: Without dead ends: 11640 [2022-07-12 07:18:03,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:18:03,720 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 64 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:03,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 342 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:18:03,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2022-07-12 07:18:10,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 11110. [2022-07-12 07:18:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11110 states, 11109 states have (on average 1.3745611666216582) internal successors, (15270), 11109 states have internal predecessors, (15270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:10,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11110 states to 11110 states and 15270 transitions. [2022-07-12 07:18:10,518 INFO L78 Accepts]: Start accepts. Automaton has 11110 states and 15270 transitions. Word has length 98 [2022-07-12 07:18:10,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:10,519 INFO L495 AbstractCegarLoop]: Abstraction has 11110 states and 15270 transitions. [2022-07-12 07:18:10,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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) [2022-07-12 07:18:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 11110 states and 15270 transitions. [2022-07-12 07:18:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:18:10,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:10,520 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] [2022-07-12 07:18:10,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 07:18:10,520 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:10,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1344323197, now seen corresponding path program 1 times [2022-07-12 07:18:10,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:10,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418479707] [2022-07-12 07:18:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:10,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:10,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:10,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418479707] [2022-07-12 07:18:10,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418479707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:10,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:10,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:18:10,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351329009] [2022-07-12 07:18:10,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:10,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:18:10,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:10,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:18:10,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:18:10,562 INFO L87 Difference]: Start difference. First operand 11110 states and 15270 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:23,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:23,350 INFO L93 Difference]: Finished difference Result 32074 states and 43744 transitions. [2022-07-12 07:18:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:18:23,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:18:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:23,383 INFO L225 Difference]: With dead ends: 32074 [2022-07-12 07:18:23,384 INFO L226 Difference]: Without dead ends: 21064 [2022-07-12 07:18:23,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:18:23,396 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 54 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:23,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 340 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:18:23,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21064 states. [2022-07-12 07:18:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21064 to 20006. [2022-07-12 07:18:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20006 states, 20005 states have (on average 1.3495626093476631) internal successors, (26998), 20005 states have internal predecessors, (26998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20006 states to 20006 states and 26998 transitions. [2022-07-12 07:18:35,524 INFO L78 Accepts]: Start accepts. Automaton has 20006 states and 26998 transitions. Word has length 99 [2022-07-12 07:18:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:35,525 INFO L495 AbstractCegarLoop]: Abstraction has 20006 states and 26998 transitions. [2022-07-12 07:18:35,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 20006 states and 26998 transitions. [2022-07-12 07:18:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:18:35,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:35,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:35,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 07:18:35,526 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:35,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -445596435, now seen corresponding path program 1 times [2022-07-12 07:18:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:35,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606133356] [2022-07-12 07:18:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:35,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606133356] [2022-07-12 07:18:35,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606133356] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:35,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:35,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:18:35,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031261527] [2022-07-12 07:18:35,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:35,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:18:35,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:18:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:18:35,579 INFO L87 Difference]: Start difference. First operand 20006 states and 26998 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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) [2022-07-12 07:18:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:58,710 INFO L93 Difference]: Finished difference Result 31016 states and 41652 transitions. [2022-07-12 07:18:58,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:18:58,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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 [2022-07-12 07:18:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:58,756 INFO L225 Difference]: With dead ends: 31016 [2022-07-12 07:18:58,757 INFO L226 Difference]: Without dead ends: 31014 [2022-07-12 07:18:58,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:58,764 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 257 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:58,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 810 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:18:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31014 states. [2022-07-12 07:19:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31014 to 20486. [2022-07-12 07:19:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20486 states, 20485 states have (on average 1.3319990236758603) internal successors, (27286), 20485 states have internal predecessors, (27286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20486 states to 20486 states and 27286 transitions. [2022-07-12 07:19:11,312 INFO L78 Accepts]: Start accepts. Automaton has 20486 states and 27286 transitions. Word has length 100 [2022-07-12 07:19:11,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:11,312 INFO L495 AbstractCegarLoop]: Abstraction has 20486 states and 27286 transitions. [2022-07-12 07:19:11,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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) [2022-07-12 07:19:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 20486 states and 27286 transitions. [2022-07-12 07:19:11,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:19:11,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:11,313 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] [2022-07-12 07:19:11,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-12 07:19:11,313 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:11,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1981290545, now seen corresponding path program 1 times [2022-07-12 07:19:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:11,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90895705] [2022-07-12 07:19:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:11,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90895705] [2022-07-12 07:19:11,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90895705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:11,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:11,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306705178] [2022-07-12 07:19:11,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:11,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:11,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:11,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:11,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:11,344 INFO L87 Difference]: Start difference. First operand 20486 states and 27286 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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) [2022-07-12 07:19:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:25,074 INFO L93 Difference]: Finished difference Result 41514 states and 55328 transitions. [2022-07-12 07:19:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:25,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 [2022-07-12 07:19:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:25,103 INFO L225 Difference]: With dead ends: 41514 [2022-07-12 07:19:25,103 INFO L226 Difference]: Without dead ends: 21128 [2022-07-12 07:19:25,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:25,120 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 87 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:25,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 282 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:25,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21128 states. [2022-07-12 07:19:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21128 to 21126. [2022-07-12 07:19:37,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21126 states, 21125 states have (on average 1.3151242603550295) internal successors, (27782), 21125 states have internal predecessors, (27782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21126 states to 21126 states and 27782 transitions. [2022-07-12 07:19:37,727 INFO L78 Accepts]: Start accepts. Automaton has 21126 states and 27782 transitions. Word has length 100 [2022-07-12 07:19:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:37,727 INFO L495 AbstractCegarLoop]: Abstraction has 21126 states and 27782 transitions. [2022-07-12 07:19:37,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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) [2022-07-12 07:19:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 21126 states and 27782 transitions. [2022-07-12 07:19:37,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 07:19:37,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:37,731 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:37,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-12 07:19:37,731 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:37,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:37,732 INFO L85 PathProgramCache]: Analyzing trace with hash 642240657, now seen corresponding path program 1 times [2022-07-12 07:19:37,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:37,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4932704] [2022-07-12 07:19:37,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:37,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:37,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4932704] [2022-07-12 07:19:37,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4932704] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:19:37,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641802757] [2022-07-12 07:19:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:37,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:19:37,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:19:37,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:19:37,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:19:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:38,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 07:19:38,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:19:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:38,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:19:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:39,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641802757] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:19:39,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:19:39,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-12 07:19:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547880083] [2022-07-12 07:19:39,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:19:39,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-12 07:19:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-12 07:19:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:19:39,611 INFO L87 Difference]: Start difference. First operand 21126 states and 27782 transitions. Second operand has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 26 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)