./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc718442bb91da0bdb0fa6a159b603baccf5b9195c06341082ea90462d0b755 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:09:26,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:09:26,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:09:26,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:09:27,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:09:27,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:09:27,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:09:27,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:09:27,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:09:27,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:09:27,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:09:27,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:09:27,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:09:27,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:09:27,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:09:27,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:09:27,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:09:27,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:09:27,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:09:27,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:09:27,017 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:09:27,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:09:27,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:09:27,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:09:27,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:09:27,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:09:27,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:09:27,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:09:27,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:09:27,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:09:27,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:09:27,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:09:27,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:09:27,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:09:27,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:09:27,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:09:27,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:09:27,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:09:27,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:09:27,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:09:27,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:09:27,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:09:27,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:09:27,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:09:27,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:09:27,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:09:27,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:09:27,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:09:27,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:09:27,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:09:27,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:09:27,059 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:09:27,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:09:27,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:09:27,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:09:27,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:09:27,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:09:27,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:09:27,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:09:27,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:09:27,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:09:27,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:09:27,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:09:27,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:09:27,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:09:27,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:09:27,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:09:27,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:09:27,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:09:27,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:09:27,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:09:27,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:09:27,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:09:27,065 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:09:27,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:09:27,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:09:27,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc718442bb91da0bdb0fa6a159b603baccf5b9195c06341082ea90462d0b755 [2022-07-19 18:09:27,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:09:27,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:09:27,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:09:27,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:09:27,300 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:09:27,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:09:27,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae4e5c26/f9082bf2da834957b0d1cd8764ae7348/FLAG153899037 [2022-07-19 18:09:28,030 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:09:28,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:09:28,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae4e5c26/f9082bf2da834957b0d1cd8764ae7348/FLAG153899037 [2022-07-19 18:09:28,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dae4e5c26/f9082bf2da834957b0d1cd8764ae7348 [2022-07-19 18:09:28,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:09:28,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:09:28,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:09:28,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:09:28,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:09:28,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:09:28" (1/1) ... [2022-07-19 18:09:28,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c8884c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:28, skipping insertion in model container [2022-07-19 18:09:28,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:09:28" (1/1) ... [2022-07-19 18:09:28,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:09:28,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:09:29,079 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26861,26874] [2022-07-19 18:09:29,122 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33212,33225] [2022-07-19 18:09:29,199 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57844,57857] [2022-07-19 18:09:29,226 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65899,65912] [2022-07-19 18:09:29,250 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71726,71739] [2022-07-19 18:09:29,286 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82469,82482] [2022-07-19 18:09:29,304 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90414,90427] [2022-07-19 18:09:29,319 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97642,97655] [2022-07-19 18:09:29,402 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132349,132362] [2022-07-19 18:09:29,412 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[135477,135490] [2022-07-19 18:09:29,428 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[143490,143503] [2022-07-19 18:09:29,441 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[149294,149307] [2022-07-19 18:09:29,500 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[172040,172053] [2022-07-19 18:09:29,552 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199876,199889] [2022-07-19 18:09:29,600 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226429,226442] [2022-07-19 18:09:29,682 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[253730,253743] [2022-07-19 18:09:29,737 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[284837,284850] [2022-07-19 18:09:29,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:09:29,923 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:09:30,034 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26861,26874] [2022-07-19 18:09:30,045 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33212,33225] [2022-07-19 18:09:30,079 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57844,57857] [2022-07-19 18:09:30,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65899,65912] [2022-07-19 18:09:30,122 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71726,71739] [2022-07-19 18:09:30,138 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82469,82482] [2022-07-19 18:09:30,148 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90414,90427] [2022-07-19 18:09:30,158 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97642,97655] [2022-07-19 18:09:30,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132349,132362] [2022-07-19 18:09:30,227 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[135477,135490] [2022-07-19 18:09:30,237 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[143490,143503] [2022-07-19 18:09:30,245 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[149294,149307] [2022-07-19 18:09:30,278 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[172040,172053] [2022-07-19 18:09:30,323 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199876,199889] [2022-07-19 18:09:30,357 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226429,226442] [2022-07-19 18:09:30,417 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[253730,253743] [2022-07-19 18:09:30,457 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-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[284837,284850] [2022-07-19 18:09:30,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:09:30,637 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:09:30,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30 WrapperNode [2022-07-19 18:09:30,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:09:30,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:09:30,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:09:30,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:09:30,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:30,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:30,944 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16832 [2022-07-19 18:09:30,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:09:30,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:09:30,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:09:30,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:09:30,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:30,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:30,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:30,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:31,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:31,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:31,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:31,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:09:31,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:09:31,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:09:31,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:09:31,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (1/1) ... [2022-07-19 18:09:31,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:09:31,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:09:31,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 18:09:31,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 18:09:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:09:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:09:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:09:31,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:09:31,802 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:09:31,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:09:37,375 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:09:37,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:09:37,409 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:09:37,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:09:37 BoogieIcfgContainer [2022-07-19 18:09:37,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:09:37,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:09:37,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:09:37,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:09:37,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:09:28" (1/3) ... [2022-07-19 18:09:37,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1e679a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:09:37, skipping insertion in model container [2022-07-19 18:09:37,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:09:30" (2/3) ... [2022-07-19 18:09:37,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1e679a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:09:37, skipping insertion in model container [2022-07-19 18:09:37,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:09:37" (3/3) ... [2022-07-19 18:09:37,421 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:09:37,433 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:09:37,433 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-07-19 18:09:37,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:09:37,593 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@50ecf68, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@15bfaa25 [2022-07-19 18:09:37,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-19 18:09:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-19 18:09:37,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:37,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:37,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:37,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:37,653 INFO L85 PathProgramCache]: Analyzing trace with hash -912153875, now seen corresponding path program 1 times [2022-07-19 18:09:37,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:37,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430830951] [2022-07-19 18:09:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:37,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:38,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:38,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430830951] [2022-07-19 18:09:38,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430830951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:38,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:38,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:38,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356465699] [2022-07-19 18:09:38,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:38,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:38,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:38,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:38,099 INFO L87 Difference]: Start difference. First operand has 3532 states, 3514 states have (on average 1.8264086511098463) internal successors, (6418), 3531 states have internal predecessors, (6418), 0 states have call successors, (0), 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 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:41,888 INFO L93 Difference]: Finished difference Result 6649 states and 11844 transitions. [2022-07-19 18:09:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:41,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-07-19 18:09:41,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:41,923 INFO L225 Difference]: With dead ends: 6649 [2022-07-19 18:09:41,923 INFO L226 Difference]: Without dead ends: 4229 [2022-07-19 18:09:41,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:41,934 INFO L413 NwaCegarLoop]: 2778 mSDtfsCounter, 19605 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19605 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:41,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19605 Valid, 3952 Invalid, 3888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 18:09:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2022-07-19 18:09:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4205. [2022-07-19 18:09:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4205 states, 4188 states have (on average 1.3385864374403056) internal successors, (5606), 4204 states have internal predecessors, (5606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 5606 transitions. [2022-07-19 18:09:42,172 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 5606 transitions. Word has length 64 [2022-07-19 18:09:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:42,173 INFO L495 AbstractCegarLoop]: Abstraction has 4205 states and 5606 transitions. [2022-07-19 18:09:42,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 5606 transitions. [2022-07-19 18:09:42,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-19 18:09:42,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:42,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:42,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:09:42,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash -919069742, now seen corresponding path program 1 times [2022-07-19 18:09:42,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:42,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778384334] [2022-07-19 18:09:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:42,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:42,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:42,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778384334] [2022-07-19 18:09:42,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778384334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:42,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:42,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965883281] [2022-07-19 18:09:42,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:42,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:42,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:42,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:42,338 INFO L87 Difference]: Start difference. First operand 4205 states and 5606 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2022-07-19 18:09:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:44,521 INFO L93 Difference]: Finished difference Result 7816 states and 10452 transitions. [2022-07-19 18:09:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:44,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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 [2022-07-19 18:09:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:44,540 INFO L225 Difference]: With dead ends: 7816 [2022-07-19 18:09:44,541 INFO L226 Difference]: Without dead ends: 4781 [2022-07-19 18:09:44,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:44,547 INFO L413 NwaCegarLoop]: 1520 mSDtfsCounter, 11431 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11431 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:44,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11431 Valid, 2077 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 18:09:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2022-07-19 18:09:44,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4761. [2022-07-19 18:09:44,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 4744 states have (on average 1.3505480607082632) internal successors, (6407), 4760 states have internal predecessors, (6407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 6407 transitions. [2022-07-19 18:09:44,737 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 6407 transitions. Word has length 65 [2022-07-19 18:09:44,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:44,738 INFO L495 AbstractCegarLoop]: Abstraction has 4761 states and 6407 transitions. [2022-07-19 18:09:44,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2022-07-19 18:09:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 6407 transitions. [2022-07-19 18:09:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-19 18:09:44,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:44,747 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] [2022-07-19 18:09:44,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:09:44,747 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:44,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1793005613, now seen corresponding path program 1 times [2022-07-19 18:09:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:44,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545878166] [2022-07-19 18:09:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:44,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:44,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545878166] [2022-07-19 18:09:44,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545878166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:44,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:44,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:44,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899488720] [2022-07-19 18:09:44,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:44,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:44,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:44,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:44,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:44,882 INFO L87 Difference]: Start difference. First operand 4761 states and 6407 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2022-07-19 18:09:47,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:47,004 INFO L93 Difference]: Finished difference Result 9743 states and 13157 transitions. [2022-07-19 18:09:47,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:47,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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 [2022-07-19 18:09:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:47,033 INFO L225 Difference]: With dead ends: 9743 [2022-07-19 18:09:47,034 INFO L226 Difference]: Without dead ends: 6636 [2022-07-19 18:09:47,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:47,045 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 10893 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10893 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:47,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10893 Valid, 2132 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 18:09:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2022-07-19 18:09:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6609. [2022-07-19 18:09:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6609 states, 6592 states have (on average 1.3577063106796117) internal successors, (8950), 6608 states have internal predecessors, (8950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6609 states to 6609 states and 8950 transitions. [2022-07-19 18:09:47,411 INFO L78 Accepts]: Start accepts. Automaton has 6609 states and 8950 transitions. Word has length 65 [2022-07-19 18:09:47,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:47,413 INFO L495 AbstractCegarLoop]: Abstraction has 6609 states and 8950 transitions. [2022-07-19 18:09:47,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 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) [2022-07-19 18:09:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6609 states and 8950 transitions. [2022-07-19 18:09:47,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 18:09:47,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:47,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:47,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:09:47,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash -958325289, now seen corresponding path program 1 times [2022-07-19 18:09:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:47,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081612254] [2022-07-19 18:09:47,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:47,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:47,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081612254] [2022-07-19 18:09:47,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081612254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:47,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:47,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:09:47,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138482128] [2022-07-19 18:09:47,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:47,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:09:47,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:47,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:09:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:09:47,554 INFO L87 Difference]: Start difference. First operand 6609 states and 8950 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:49,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:49,243 INFO L93 Difference]: Finished difference Result 12909 states and 17663 transitions. [2022-07-19 18:09:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:09:49,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-19 18:09:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:49,273 INFO L225 Difference]: With dead ends: 12909 [2022-07-19 18:09:49,273 INFO L226 Difference]: Without dead ends: 8515 [2022-07-19 18:09:49,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:09:49,282 INFO L413 NwaCegarLoop]: 1364 mSDtfsCounter, 9319 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9319 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:49,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9319 Valid, 1841 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:09:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2022-07-19 18:09:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 8480. [2022-07-19 18:09:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8480 states, 8463 states have (on average 1.3737445350348576) internal successors, (11626), 8479 states have internal predecessors, (11626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:49,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 11626 transitions. [2022-07-19 18:09:49,675 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 11626 transitions. Word has length 66 [2022-07-19 18:09:49,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:49,676 INFO L495 AbstractCegarLoop]: Abstraction has 8480 states and 11626 transitions. [2022-07-19 18:09:49,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 11626 transitions. [2022-07-19 18:09:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 18:09:49,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:49,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:49,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:09:49,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash 215811001, now seen corresponding path program 1 times [2022-07-19 18:09:49,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033820732] [2022-07-19 18:09:49,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:49,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:49,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:49,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033820732] [2022-07-19 18:09:49,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033820732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:49,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:49,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:09:49,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83745229] [2022-07-19 18:09:49,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:49,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:09:49,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:49,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:09:49,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:09:49,864 INFO L87 Difference]: Start difference. First operand 8480 states and 11626 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:54,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:54,613 INFO L93 Difference]: Finished difference Result 19590 states and 27928 transitions. [2022-07-19 18:09:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:09:54,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-19 18:09:54,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:54,655 INFO L225 Difference]: With dead ends: 19590 [2022-07-19 18:09:54,655 INFO L226 Difference]: Without dead ends: 18231 [2022-07-19 18:09:54,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-19 18:09:54,666 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 10191 mSDsluCounter, 6105 mSDsCounter, 0 mSdLazyCounter, 8118 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10191 SdHoareTripleChecker+Valid, 7547 SdHoareTripleChecker+Invalid, 8493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 8118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:54,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10191 Valid, 7547 Invalid, 8493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 8118 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-19 18:09:54,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18231 states. [2022-07-19 18:09:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18231 to 8423. [2022-07-19 18:09:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 8406 states have (on average 1.3733047822983584) internal successors, (11544), 8422 states have internal predecessors, (11544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 11544 transitions. [2022-07-19 18:09:55,387 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 11544 transitions. Word has length 66 [2022-07-19 18:09:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:55,388 INFO L495 AbstractCegarLoop]: Abstraction has 8423 states and 11544 transitions. [2022-07-19 18:09:55,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 11544 transitions. [2022-07-19 18:09:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-19 18:09:55,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:55,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:55,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:09:55,397 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash -531315301, now seen corresponding path program 1 times [2022-07-19 18:09:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:55,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816899399] [2022-07-19 18:09:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:55,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:55,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:55,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816899399] [2022-07-19 18:09:55,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816899399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:55,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:55,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:09:55,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244578311] [2022-07-19 18:09:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:55,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:09:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:09:55,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:09:55,553 INFO L87 Difference]: Start difference. First operand 8423 states and 11544 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:09:58,178 INFO L93 Difference]: Finished difference Result 13353 states and 18901 transitions. [2022-07-19 18:09:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 18:09:58,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-19 18:09:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:09:58,201 INFO L225 Difference]: With dead ends: 13353 [2022-07-19 18:09:58,202 INFO L226 Difference]: Without dead ends: 11888 [2022-07-19 18:09:58,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:09:58,215 INFO L413 NwaCegarLoop]: 1424 mSDtfsCounter, 13672 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 4429 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13672 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 4565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 4429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:09:58,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13672 Valid, 4803 Invalid, 4565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 4429 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 18:09:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11888 states. [2022-07-19 18:09:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11888 to 8272. [2022-07-19 18:09:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8255 states have (on average 1.3727437916414293) internal successors, (11332), 8271 states have internal predecessors, (11332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:58,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 11332 transitions. [2022-07-19 18:09:58,796 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 11332 transitions. Word has length 66 [2022-07-19 18:09:58,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:09:58,796 INFO L495 AbstractCegarLoop]: Abstraction has 8272 states and 11332 transitions. [2022-07-19 18:09:58,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:09:58,796 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 11332 transitions. [2022-07-19 18:09:58,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 18:09:58,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:09:58,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:09:58,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:09:58,804 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:09:58,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:09:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1567621872, now seen corresponding path program 1 times [2022-07-19 18:09:58,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:09:58,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344963612] [2022-07-19 18:09:58,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:09:58,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:09:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:09:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:09:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:09:58,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344963612] [2022-07-19 18:09:58,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344963612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:09:58,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:09:58,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:09:58,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805585003] [2022-07-19 18:09:58,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:09:58,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:09:58,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:09:58,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:09:58,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:09:58,967 INFO L87 Difference]: Start difference. First operand 8272 states and 11332 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:02,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:02,280 INFO L93 Difference]: Finished difference Result 11824 states and 16310 transitions. [2022-07-19 18:10:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:10:02,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-19 18:10:02,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:02,302 INFO L225 Difference]: With dead ends: 11824 [2022-07-19 18:10:02,302 INFO L226 Difference]: Without dead ends: 11816 [2022-07-19 18:10:02,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:10:02,307 INFO L413 NwaCegarLoop]: 1427 mSDtfsCounter, 13494 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 5838 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13494 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 6204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 5838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:02,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13494 Valid, 5917 Invalid, 6204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 5838 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 18:10:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11816 states. [2022-07-19 18:10:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11816 to 8272. [2022-07-19 18:10:02,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8255 states have (on average 1.3726226529376135) internal successors, (11331), 8271 states have internal predecessors, (11331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 11331 transitions. [2022-07-19 18:10:02,957 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 11331 transitions. Word has length 67 [2022-07-19 18:10:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:02,957 INFO L495 AbstractCegarLoop]: Abstraction has 8272 states and 11331 transitions. [2022-07-19 18:10:02,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 11331 transitions. [2022-07-19 18:10:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 18:10:02,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:02,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:10:02,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:10:02,965 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:02,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash 435988824, now seen corresponding path program 1 times [2022-07-19 18:10:02,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:02,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747035467] [2022-07-19 18:10:02,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:03,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:03,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747035467] [2022-07-19 18:10:03,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747035467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:03,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:03,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:10:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974152266] [2022-07-19 18:10:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:10:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:10:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:10:03,126 INFO L87 Difference]: Start difference. First operand 8272 states and 11331 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:05,860 INFO L93 Difference]: Finished difference Result 9712 states and 13342 transitions. [2022-07-19 18:10:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:10:05,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-19 18:10:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:05,873 INFO L225 Difference]: With dead ends: 9712 [2022-07-19 18:10:05,873 INFO L226 Difference]: Without dead ends: 9707 [2022-07-19 18:10:05,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:10:05,875 INFO L413 NwaCegarLoop]: 1375 mSDtfsCounter, 12879 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12879 SdHoareTripleChecker+Valid, 5789 SdHoareTripleChecker+Invalid, 5428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:05,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12879 Valid, 5789 Invalid, 5428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5176 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 18:10:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2022-07-19 18:10:06,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 8272. [2022-07-19 18:10:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8255 states have (on average 1.3725015142337977) internal successors, (11330), 8271 states have internal predecessors, (11330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 11330 transitions. [2022-07-19 18:10:06,428 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 11330 transitions. Word has length 67 [2022-07-19 18:10:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:06,428 INFO L495 AbstractCegarLoop]: Abstraction has 8272 states and 11330 transitions. [2022-07-19 18:10:06,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 11330 transitions. [2022-07-19 18:10:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 18:10:06,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:06,435 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] [2022-07-19 18:10:06,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:10:06,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2090357239, now seen corresponding path program 1 times [2022-07-19 18:10:06,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:06,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399576760] [2022-07-19 18:10:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:06,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:06,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:06,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399576760] [2022-07-19 18:10:06,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399576760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:06,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:06,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:10:06,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109387747] [2022-07-19 18:10:06,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:06,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 18:10:06,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 18:10:06,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-19 18:10:06,706 INFO L87 Difference]: Start difference. First operand 8272 states and 11330 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) [2022-07-19 18:10:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:09,454 INFO L93 Difference]: Finished difference Result 15514 states and 22347 transitions. [2022-07-19 18:10:09,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:10:09,454 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 [2022-07-19 18:10:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:09,479 INFO L225 Difference]: With dead ends: 15514 [2022-07-19 18:10:09,479 INFO L226 Difference]: Without dead ends: 15510 [2022-07-19 18:10:09,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2022-07-19 18:10:09,485 INFO L413 NwaCegarLoop]: 2653 mSDtfsCounter, 15192 mSDsluCounter, 13281 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15192 SdHoareTripleChecker+Valid, 15934 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:09,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15192 Valid, 15934 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:10:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15510 states. [2022-07-19 18:10:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15510 to 8268. [2022-07-19 18:10:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8252 states have (on average 1.372515753756665) internal successors, (11326), 8267 states have internal predecessors, (11326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 11326 transitions. [2022-07-19 18:10:10,235 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 11326 transitions. Word has length 67 [2022-07-19 18:10:10,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:10,236 INFO L495 AbstractCegarLoop]: Abstraction has 8268 states and 11326 transitions. [2022-07-19 18:10:10,236 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) [2022-07-19 18:10:10,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 11326 transitions. [2022-07-19 18:10:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-19 18:10:10,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:10,244 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] [2022-07-19 18:10:10,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:10:10,244 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:10,245 INFO L85 PathProgramCache]: Analyzing trace with hash 822338575, now seen corresponding path program 1 times [2022-07-19 18:10:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:10,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434528633] [2022-07-19 18:10:10,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:10,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:10,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:10,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434528633] [2022-07-19 18:10:10,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434528633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:10,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:10,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:10:10,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249344870] [2022-07-19 18:10:10,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:10,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:10:10,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:10,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:10:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:10:10,612 INFO L87 Difference]: Start difference. First operand 8268 states and 11326 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) [2022-07-19 18:10:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:15,089 INFO L93 Difference]: Finished difference Result 19575 states and 28257 transitions. [2022-07-19 18:10:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-19 18:10:15,090 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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 [2022-07-19 18:10:15,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:15,116 INFO L225 Difference]: With dead ends: 19575 [2022-07-19 18:10:15,116 INFO L226 Difference]: Without dead ends: 19571 [2022-07-19 18:10:15,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2022-07-19 18:10:15,123 INFO L413 NwaCegarLoop]: 2624 mSDtfsCounter, 20221 mSDsluCounter, 16553 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20221 SdHoareTripleChecker+Valid, 19177 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:15,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20221 Valid, 19177 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 18:10:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19571 states. [2022-07-19 18:10:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19571 to 8264. [2022-07-19 18:10:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8249 states have (on average 1.3725300036368044) internal successors, (11322), 8263 states have internal predecessors, (11322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 11322 transitions. [2022-07-19 18:10:16,086 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 11322 transitions. Word has length 67 [2022-07-19 18:10:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:16,087 INFO L495 AbstractCegarLoop]: Abstraction has 8264 states and 11322 transitions. [2022-07-19 18:10:16,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 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) [2022-07-19 18:10:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 11322 transitions. [2022-07-19 18:10:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:16,094 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:16,095 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] [2022-07-19 18:10:16,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:10:16,095 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:16,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1877034391, now seen corresponding path program 1 times [2022-07-19 18:10:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:16,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939778578] [2022-07-19 18:10:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:16,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:16,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:16,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939778578] [2022-07-19 18:10:16,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939778578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:16,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:16,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:10:16,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298312609] [2022-07-19 18:10:16,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:16,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:10:16,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:16,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:10:16,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:10:16,433 INFO L87 Difference]: Start difference. First operand 8264 states and 11322 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) [2022-07-19 18:10:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:21,426 INFO L93 Difference]: Finished difference Result 18882 states and 27159 transitions. [2022-07-19 18:10:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:10:21,426 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 [2022-07-19 18:10:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:21,447 INFO L225 Difference]: With dead ends: 18882 [2022-07-19 18:10:21,447 INFO L226 Difference]: Without dead ends: 18871 [2022-07-19 18:10:21,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-19 18:10:21,452 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 16340 mSDsluCounter, 14706 mSDsCounter, 0 mSdLazyCounter, 4158 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16340 SdHoareTripleChecker+Valid, 17311 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 4158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:21,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16340 Valid, 17311 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 4158 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 18:10:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18871 states. [2022-07-19 18:10:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18871 to 8258. [2022-07-19 18:10:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8258 states, 8243 states have (on average 1.3726798495693315) internal successors, (11315), 8257 states have internal predecessors, (11315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8258 states to 8258 states and 11315 transitions. [2022-07-19 18:10:22,585 INFO L78 Accepts]: Start accepts. Automaton has 8258 states and 11315 transitions. Word has length 68 [2022-07-19 18:10:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:22,585 INFO L495 AbstractCegarLoop]: Abstraction has 8258 states and 11315 transitions. [2022-07-19 18:10:22,585 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) [2022-07-19 18:10:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 8258 states and 11315 transitions. [2022-07-19 18:10:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:22,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:22,590 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] [2022-07-19 18:10:22,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:10:22,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 702049040, now seen corresponding path program 1 times [2022-07-19 18:10:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:22,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842585185] [2022-07-19 18:10:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:22,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:22,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842585185] [2022-07-19 18:10:22,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842585185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:22,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:22,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 18:10:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242555529] [2022-07-19 18:10:22,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:22,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 18:10:22,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 18:10:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 18:10:22,691 INFO L87 Difference]: Start difference. First operand 8258 states and 11315 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2022-07-19 18:10:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:26,271 INFO L93 Difference]: Finished difference Result 13450 states and 19026 transitions. [2022-07-19 18:10:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 18:10:26,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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 [2022-07-19 18:10:26,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:26,285 INFO L225 Difference]: With dead ends: 13450 [2022-07-19 18:10:26,285 INFO L226 Difference]: Without dead ends: 11869 [2022-07-19 18:10:26,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-19 18:10:26,289 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 10365 mSDsluCounter, 3221 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10365 SdHoareTripleChecker+Valid, 4606 SdHoareTripleChecker+Invalid, 4417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:26,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10365 Valid, 4606 Invalid, 4417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4310 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 18:10:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11869 states. [2022-07-19 18:10:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11869 to 8258. [2022-07-19 18:10:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8258 states, 8243 states have (on average 1.3725585345141331) internal successors, (11314), 8257 states have internal predecessors, (11314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8258 states to 8258 states and 11314 transitions. [2022-07-19 18:10:27,183 INFO L78 Accepts]: Start accepts. Automaton has 8258 states and 11314 transitions. Word has length 68 [2022-07-19 18:10:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:27,184 INFO L495 AbstractCegarLoop]: Abstraction has 8258 states and 11314 transitions. [2022-07-19 18:10:27,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 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) [2022-07-19 18:10:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 8258 states and 11314 transitions. [2022-07-19 18:10:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:27,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:27,189 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] [2022-07-19 18:10:27,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:10:27,189 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:27,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:27,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1625518918, now seen corresponding path program 1 times [2022-07-19 18:10:27,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:27,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328661556] [2022-07-19 18:10:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:27,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328661556] [2022-07-19 18:10:27,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328661556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:27,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:27,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:10:27,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447719400] [2022-07-19 18:10:27,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:10:27,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:10:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:10:27,309 INFO L87 Difference]: Start difference. First operand 8258 states and 11314 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) [2022-07-19 18:10:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:32,089 INFO L93 Difference]: Finished difference Result 15126 states and 21407 transitions. [2022-07-19 18:10:32,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:10:32,090 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 [2022-07-19 18:10:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:32,105 INFO L225 Difference]: With dead ends: 15126 [2022-07-19 18:10:32,105 INFO L226 Difference]: Without dead ends: 13809 [2022-07-19 18:10:32,109 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 [2022-07-19 18:10:32,109 INFO L413 NwaCegarLoop]: 1482 mSDtfsCounter, 13758 mSDsluCounter, 4627 mSDsCounter, 0 mSdLazyCounter, 6023 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13758 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 6386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 6023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:32,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13758 Valid, 6109 Invalid, 6386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 6023 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 18:10:32,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13809 states. [2022-07-19 18:10:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13809 to 8258. [2022-07-19 18:10:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8258 states, 8243 states have (on average 1.372437219458935) internal successors, (11313), 8257 states have internal predecessors, (11313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8258 states to 8258 states and 11313 transitions. [2022-07-19 18:10:33,100 INFO L78 Accepts]: Start accepts. Automaton has 8258 states and 11313 transitions. Word has length 68 [2022-07-19 18:10:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:33,100 INFO L495 AbstractCegarLoop]: Abstraction has 8258 states and 11313 transitions. [2022-07-19 18:10:33,100 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) [2022-07-19 18:10:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8258 states and 11313 transitions. [2022-07-19 18:10:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:33,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:33,105 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] [2022-07-19 18:10:33,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:10:33,106 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1023482213, now seen corresponding path program 1 times [2022-07-19 18:10:33,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:33,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294800512] [2022-07-19 18:10:33,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:33,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294800512] [2022-07-19 18:10:33,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294800512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:33,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:33,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:10:33,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263202218] [2022-07-19 18:10:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:33,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:10:33,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:10:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:10:33,265 INFO L87 Difference]: Start difference. First operand 8258 states and 11313 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2022-07-19 18:10:38,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:38,458 INFO L93 Difference]: Finished difference Result 13484 states and 18906 transitions. [2022-07-19 18:10:38,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:10:38,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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 [2022-07-19 18:10:38,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:38,478 INFO L225 Difference]: With dead ends: 13484 [2022-07-19 18:10:38,478 INFO L226 Difference]: Without dead ends: 12181 [2022-07-19 18:10:38,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:10:38,487 INFO L413 NwaCegarLoop]: 1464 mSDtfsCounter, 13247 mSDsluCounter, 6601 mSDsCounter, 0 mSdLazyCounter, 7577 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13247 SdHoareTripleChecker+Valid, 8065 SdHoareTripleChecker+Invalid, 7834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 7577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:38,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13247 Valid, 8065 Invalid, 7834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 7577 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-19 18:10:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12181 states. [2022-07-19 18:10:39,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12181 to 8266. [2022-07-19 18:10:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8251 states have (on average 1.3725609017088838) internal successors, (11325), 8265 states have internal predecessors, (11325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 11325 transitions. [2022-07-19 18:10:39,583 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 11325 transitions. Word has length 68 [2022-07-19 18:10:39,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:39,583 INFO L495 AbstractCegarLoop]: Abstraction has 8266 states and 11325 transitions. [2022-07-19 18:10:39,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2022-07-19 18:10:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 11325 transitions. [2022-07-19 18:10:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:39,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:39,589 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] [2022-07-19 18:10:39,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:10:39,589 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:39,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:39,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1561635764, now seen corresponding path program 1 times [2022-07-19 18:10:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:39,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127815127] [2022-07-19 18:10:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:39,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:39,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:39,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127815127] [2022-07-19 18:10:39,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127815127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:39,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:39,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 18:10:39,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235630867] [2022-07-19 18:10:39,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:39,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:10:39,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:10:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:10:39,729 INFO L87 Difference]: Start difference. First operand 8266 states and 11325 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2022-07-19 18:10:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:46,049 INFO L93 Difference]: Finished difference Result 15109 states and 21114 transitions. [2022-07-19 18:10:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 18:10:46,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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 [2022-07-19 18:10:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:46,066 INFO L225 Difference]: With dead ends: 15109 [2022-07-19 18:10:46,066 INFO L226 Difference]: Without dead ends: 13792 [2022-07-19 18:10:46,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=518, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:10:46,072 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 12736 mSDsluCounter, 7633 mSDsCounter, 0 mSdLazyCounter, 9396 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12736 SdHoareTripleChecker+Valid, 9152 SdHoareTripleChecker+Invalid, 9729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 9396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:46,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12736 Valid, 9152 Invalid, 9729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 9396 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-19 18:10:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2022-07-19 18:10:47,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 8266. [2022-07-19 18:10:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8251 states have (on average 1.3724397042782692) internal successors, (11324), 8265 states have internal predecessors, (11324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 11324 transitions. [2022-07-19 18:10:47,172 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 11324 transitions. Word has length 68 [2022-07-19 18:10:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:47,173 INFO L495 AbstractCegarLoop]: Abstraction has 8266 states and 11324 transitions. [2022-07-19 18:10:47,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2022-07-19 18:10:47,173 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 11324 transitions. [2022-07-19 18:10:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:47,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:47,179 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] [2022-07-19 18:10:47,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:10:47,179 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:47,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:47,179 INFO L85 PathProgramCache]: Analyzing trace with hash -53728106, now seen corresponding path program 1 times [2022-07-19 18:10:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:47,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614950430] [2022-07-19 18:10:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:47,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:47,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:47,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614950430] [2022-07-19 18:10:47,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614950430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:47,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:47,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:10:47,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165973289] [2022-07-19 18:10:47,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:47,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:10:47,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:10:47,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:10:47,448 INFO L87 Difference]: Start difference. First operand 8266 states and 11324 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) [2022-07-19 18:10:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:52,686 INFO L93 Difference]: Finished difference Result 17511 states and 25236 transitions. [2022-07-19 18:10:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:10:52,687 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 [2022-07-19 18:10:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:52,705 INFO L225 Difference]: With dead ends: 17511 [2022-07-19 18:10:52,705 INFO L226 Difference]: Without dead ends: 17503 [2022-07-19 18:10:52,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-19 18:10:52,709 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 13418 mSDsluCounter, 11749 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13418 SdHoareTripleChecker+Valid, 14565 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:52,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13418 Valid, 14565 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:10:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17503 states. [2022-07-19 18:10:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17503 to 8258. [2022-07-19 18:10:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8258 states, 8244 states have (on average 1.3725133430373606) internal successors, (11315), 8257 states have internal predecessors, (11315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:53,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8258 states to 8258 states and 11315 transitions. [2022-07-19 18:10:53,899 INFO L78 Accepts]: Start accepts. Automaton has 8258 states and 11315 transitions. Word has length 68 [2022-07-19 18:10:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:53,900 INFO L495 AbstractCegarLoop]: Abstraction has 8258 states and 11315 transitions. [2022-07-19 18:10:53,900 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) [2022-07-19 18:10:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8258 states and 11315 transitions. [2022-07-19 18:10:53,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-19 18:10:53,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:53,906 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] [2022-07-19 18:10:53,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:10:53,906 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:53,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1836776824, now seen corresponding path program 1 times [2022-07-19 18:10:53,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:53,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358952485] [2022-07-19 18:10:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:53,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:53,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:53,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:53,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358952485] [2022-07-19 18:10:53,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358952485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:53,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:53,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:53,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78806566] [2022-07-19 18:10:53,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:53,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:53,999 INFO L87 Difference]: Start difference. First operand 8258 states and 11315 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2022-07-19 18:10:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:55,418 INFO L93 Difference]: Finished difference Result 12116 states and 16881 transitions. [2022-07-19 18:10:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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 [2022-07-19 18:10:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:55,427 INFO L225 Difference]: With dead ends: 12116 [2022-07-19 18:10:55,427 INFO L226 Difference]: Without dead ends: 7437 [2022-07-19 18:10:55,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:55,433 INFO L413 NwaCegarLoop]: 2030 mSDtfsCounter, 1981 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:55,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 2702 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:10:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7437 states. [2022-07-19 18:10:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7437 to 7419. [2022-07-19 18:10:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7419 states, 7409 states have (on average 1.3875016871372654) internal successors, (10280), 7418 states have internal predecessors, (10280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7419 states to 7419 states and 10280 transitions. [2022-07-19 18:10:56,702 INFO L78 Accepts]: Start accepts. Automaton has 7419 states and 10280 transitions. Word has length 68 [2022-07-19 18:10:56,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:56,702 INFO L495 AbstractCegarLoop]: Abstraction has 7419 states and 10280 transitions. [2022-07-19 18:10:56,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 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) [2022-07-19 18:10:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7419 states and 10280 transitions. [2022-07-19 18:10:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:10:56,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:56,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:10:56,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:10:56,706 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:56,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash 837543786, now seen corresponding path program 1 times [2022-07-19 18:10:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:56,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263045499] [2022-07-19 18:10:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:56,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:10:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:10:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:10:56,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263045499] [2022-07-19 18:10:56,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263045499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:10:56,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:10:56,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:10:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643359056] [2022-07-19 18:10:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:10:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:10:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:10:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:10:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:56,753 INFO L87 Difference]: Start difference. First operand 7419 states and 10280 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:58,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:10:58,441 INFO L93 Difference]: Finished difference Result 11902 states and 16777 transitions. [2022-07-19 18:10:58,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:10:58,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:10:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:10:58,449 INFO L225 Difference]: With dead ends: 11902 [2022-07-19 18:10:58,449 INFO L226 Difference]: Without dead ends: 7112 [2022-07-19 18:10:58,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:10:58,453 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1600 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:10:58,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 2136 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:10:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7112 states. [2022-07-19 18:10:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7112 to 7104. [2022-07-19 18:10:59,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 7097 states have (on average 1.4045371283640975) internal successors, (9968), 7103 states have internal predecessors, (9968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 9968 transitions. [2022-07-19 18:10:59,959 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 9968 transitions. Word has length 69 [2022-07-19 18:10:59,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:10:59,959 INFO L495 AbstractCegarLoop]: Abstraction has 7104 states and 9968 transitions. [2022-07-19 18:10:59,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:10:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 9968 transitions. [2022-07-19 18:10:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:10:59,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:10:59,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:10:59,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:10:59,963 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:10:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:10:59,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1076361939, now seen corresponding path program 1 times [2022-07-19 18:10:59,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:10:59,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831893951] [2022-07-19 18:10:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:10:59,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:10:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:00,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:00,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:00,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831893951] [2022-07-19 18:11:00,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831893951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:00,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:00,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943248042] [2022-07-19 18:11:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:00,016 INFO L87 Difference]: Start difference. First operand 7104 states and 9968 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:02,094 INFO L93 Difference]: Finished difference Result 11522 states and 16817 transitions. [2022-07-19 18:11:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:02,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:11:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:02,104 INFO L225 Difference]: With dead ends: 11522 [2022-07-19 18:11:02,104 INFO L226 Difference]: Without dead ends: 8119 [2022-07-19 18:11:02,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:02,108 INFO L413 NwaCegarLoop]: 1697 mSDtfsCounter, 996 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:02,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 2443 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:11:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-07-19 18:11:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 6632. [2022-07-19 18:11:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6632 states, 6625 states have (on average 1.4292830188679246) internal successors, (9469), 6631 states have internal predecessors, (9469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:03,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6632 states to 6632 states and 9469 transitions. [2022-07-19 18:11:03,690 INFO L78 Accepts]: Start accepts. Automaton has 6632 states and 9469 transitions. Word has length 69 [2022-07-19 18:11:03,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:03,691 INFO L495 AbstractCegarLoop]: Abstraction has 6632 states and 9469 transitions. [2022-07-19 18:11:03,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6632 states and 9469 transitions. [2022-07-19 18:11:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:11:03,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:03,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:11:03,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:11:03,694 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:03,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash 208509551, now seen corresponding path program 1 times [2022-07-19 18:11:03,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:03,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387276643] [2022-07-19 18:11:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:03,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:03,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:03,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387276643] [2022-07-19 18:11:03,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387276643] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:03,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:03,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:03,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108999839] [2022-07-19 18:11:03,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:03,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:03,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:03,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:03,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:03,749 INFO L87 Difference]: Start difference. First operand 6632 states and 9469 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:06,477 INFO L93 Difference]: Finished difference Result 14661 states and 21444 transitions. [2022-07-19 18:11:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:11:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:06,489 INFO L225 Difference]: With dead ends: 14661 [2022-07-19 18:11:06,489 INFO L226 Difference]: Without dead ends: 10590 [2022-07-19 18:11:06,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:06,496 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 1031 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:06,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 3060 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:11:06,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10590 states. [2022-07-19 18:11:09,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10590 to 10582. [2022-07-19 18:11:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10582 states, 10575 states have (on average 1.4364066193853429) internal successors, (15190), 10581 states have internal predecessors, (15190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10582 states to 10582 states and 15190 transitions. [2022-07-19 18:11:09,234 INFO L78 Accepts]: Start accepts. Automaton has 10582 states and 15190 transitions. Word has length 69 [2022-07-19 18:11:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 10582 states and 15190 transitions. [2022-07-19 18:11:09,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10582 states and 15190 transitions. [2022-07-19 18:11:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:11:09,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:09,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:11:09,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:11:09,238 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash 900965329, now seen corresponding path program 1 times [2022-07-19 18:11:09,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:09,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788546893] [2022-07-19 18:11:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:09,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:09,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788546893] [2022-07-19 18:11:09,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788546893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:09,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:09,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603471514] [2022-07-19 18:11:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:09,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:09,289 INFO L87 Difference]: Start difference. First operand 10582 states and 15190 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:13,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:13,251 INFO L93 Difference]: Finished difference Result 20640 states and 30539 transitions. [2022-07-19 18:11:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:11:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:13,267 INFO L225 Difference]: With dead ends: 20640 [2022-07-19 18:11:13,267 INFO L226 Difference]: Without dead ends: 13790 [2022-07-19 18:11:13,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:13,274 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 996 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:13,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 2405 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:11:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13790 states. [2022-07-19 18:11:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13790 to 11359. [2022-07-19 18:11:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11359 states, 11352 states have (on average 1.446969696969697) internal successors, (16426), 11358 states have internal predecessors, (16426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11359 states to 11359 states and 16426 transitions. [2022-07-19 18:11:16,502 INFO L78 Accepts]: Start accepts. Automaton has 11359 states and 16426 transitions. Word has length 69 [2022-07-19 18:11:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:16,502 INFO L495 AbstractCegarLoop]: Abstraction has 11359 states and 16426 transitions. [2022-07-19 18:11:16,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:16,503 INFO L276 IsEmpty]: Start isEmpty. Operand 11359 states and 16426 transitions. [2022-07-19 18:11:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-19 18:11:16,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:16,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:11:16,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:11:16,507 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:16,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1908328951, now seen corresponding path program 1 times [2022-07-19 18:11:16,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:16,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404364748] [2022-07-19 18:11:16,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:16,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:16,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:16,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:16,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404364748] [2022-07-19 18:11:16,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404364748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:16,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:16,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:16,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107774548] [2022-07-19 18:11:16,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:16,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:16,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:16,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:16,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:16,563 INFO L87 Difference]: Start difference. First operand 11359 states and 16426 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:22,603 INFO L93 Difference]: Finished difference Result 27995 states and 41052 transitions. [2022-07-19 18:11:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-19 18:11:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:22,630 INFO L225 Difference]: With dead ends: 27995 [2022-07-19 18:11:22,630 INFO L226 Difference]: Without dead ends: 19024 [2022-07-19 18:11:22,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:22,643 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 912 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:22,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 3052 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:11:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19024 states. [2022-07-19 18:11:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19024 to 19016. [2022-07-19 18:11:28,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19016 states, 19009 states have (on average 1.436898311326214) internal successors, (27314), 19015 states have internal predecessors, (27314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19016 states to 19016 states and 27314 transitions. [2022-07-19 18:11:28,537 INFO L78 Accepts]: Start accepts. Automaton has 19016 states and 27314 transitions. Word has length 69 [2022-07-19 18:11:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:28,537 INFO L495 AbstractCegarLoop]: Abstraction has 19016 states and 27314 transitions. [2022-07-19 18:11:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 19016 states and 27314 transitions. [2022-07-19 18:11:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 18:11:28,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:28,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:11:28,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 18:11:28,543 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:28,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:28,544 INFO L85 PathProgramCache]: Analyzing trace with hash -736488177, now seen corresponding path program 1 times [2022-07-19 18:11:28,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:28,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899314843] [2022-07-19 18:11:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:28,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:28,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:28,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899314843] [2022-07-19 18:11:28,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899314843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:28,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:28,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:28,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716467870] [2022-07-19 18:11:28,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:28,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:28,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:28,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:28,594 INFO L87 Difference]: Start difference. First operand 19016 states and 27314 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2022-07-19 18:11:35,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:35,993 INFO L93 Difference]: Finished difference Result 38710 states and 56287 transitions. [2022-07-19 18:11:35,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:35,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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 [2022-07-19 18:11:35,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:36,028 INFO L225 Difference]: With dead ends: 38710 [2022-07-19 18:11:36,028 INFO L226 Difference]: Without dead ends: 21366 [2022-07-19 18:11:36,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:36,048 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1448 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:36,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 2134 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:11:36,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21366 states. [2022-07-19 18:11:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21366 to 17118. [2022-07-19 18:11:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17118 states, 17111 states have (on average 1.4525159254280873) internal successors, (24854), 17117 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17118 states to 17118 states and 24854 transitions. [2022-07-19 18:11:41,695 INFO L78 Accepts]: Start accepts. Automaton has 17118 states and 24854 transitions. Word has length 70 [2022-07-19 18:11:41,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:41,695 INFO L495 AbstractCegarLoop]: Abstraction has 17118 states and 24854 transitions. [2022-07-19 18:11:41,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2022-07-19 18:11:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 17118 states and 24854 transitions. [2022-07-19 18:11:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-19 18:11:41,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:41,701 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] [2022-07-19 18:11:41,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-19 18:11:41,702 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:41,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:41,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1726166193, now seen corresponding path program 1 times [2022-07-19 18:11:41,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:41,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333722159] [2022-07-19 18:11:41,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:41,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:41,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333722159] [2022-07-19 18:11:41,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333722159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:41,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:41,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:11:41,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500065622] [2022-07-19 18:11:41,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:41,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:11:41,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:41,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:11:41,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:41,755 INFO L87 Difference]: Start difference. First operand 17118 states and 24854 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2022-07-19 18:11:48,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:11:48,804 INFO L93 Difference]: Finished difference Result 35920 states and 52600 transitions. [2022-07-19 18:11:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:11:48,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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 [2022-07-19 18:11:48,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:11:48,835 INFO L225 Difference]: With dead ends: 35920 [2022-07-19 18:11:48,835 INFO L226 Difference]: Without dead ends: 19666 [2022-07-19 18:11:48,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:11:48,851 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 1077 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:11:48,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 1876 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:11:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19666 states. [2022-07-19 18:11:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19666 to 15855. [2022-07-19 18:11:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15855 states, 15848 states have (on average 1.461193841494195) internal successors, (23157), 15854 states have internal predecessors, (23157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:11:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15855 states to 15855 states and 23157 transitions. [2022-07-19 18:11:54,137 INFO L78 Accepts]: Start accepts. Automaton has 15855 states and 23157 transitions. Word has length 70 [2022-07-19 18:11:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:11:54,138 INFO L495 AbstractCegarLoop]: Abstraction has 15855 states and 23157 transitions. [2022-07-19 18:11:54,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2022-07-19 18:11:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 15855 states and 23157 transitions. [2022-07-19 18:11:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:11:54,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:11:54,140 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] [2022-07-19 18:11:54,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-19 18:11:54,140 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:11:54,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:11:54,141 INFO L85 PathProgramCache]: Analyzing trace with hash 246166670, now seen corresponding path program 1 times [2022-07-19 18:11:54,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:11:54,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120082461] [2022-07-19 18:11:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:11:54,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:11:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:11:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:11:54,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:11:54,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120082461] [2022-07-19 18:11:54,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120082461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:11:54,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:11:54,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:11:54,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283041574] [2022-07-19 18:11:54,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:11:54,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:11:54,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:11:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:11:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:11:54,249 INFO L87 Difference]: Start difference. First operand 15855 states and 23157 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:12,981 INFO L93 Difference]: Finished difference Result 44897 states and 65590 transitions. [2022-07-19 18:12:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 18:12:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:12:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:13,050 INFO L225 Difference]: With dead ends: 44897 [2022-07-19 18:12:13,050 INFO L226 Difference]: Without dead ends: 44691 [2022-07-19 18:12:13,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2022-07-19 18:12:13,065 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 4810 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 4468 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 4957 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 4468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:13,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4810 Valid, 4957 Invalid, 4619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 4468 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 18:12:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44691 states. [2022-07-19 18:12:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44691 to 15855. [2022-07-19 18:12:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15855 states, 15848 states have (on average 1.461067642604745) internal successors, (23155), 15854 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15855 states to 15855 states and 23155 transitions. [2022-07-19 18:12:18,795 INFO L78 Accepts]: Start accepts. Automaton has 15855 states and 23155 transitions. Word has length 71 [2022-07-19 18:12:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:18,795 INFO L495 AbstractCegarLoop]: Abstraction has 15855 states and 23155 transitions. [2022-07-19 18:12:18,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 15855 states and 23155 transitions. [2022-07-19 18:12:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:12:18,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:18,799 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] [2022-07-19 18:12:18,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-19 18:12:18,799 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash -168991978, now seen corresponding path program 1 times [2022-07-19 18:12:18,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:18,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081487849] [2022-07-19 18:12:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:18,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:18,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:18,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081487849] [2022-07-19 18:12:18,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081487849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:18,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:18,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:12:18,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787530428] [2022-07-19 18:12:18,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:18,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:12:18,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:18,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:12:18,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:12:18,935 INFO L87 Difference]: Start difference. First operand 15855 states and 23155 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:28,048 INFO L93 Difference]: Finished difference Result 20503 states and 29716 transitions. [2022-07-19 18:12:28,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:12:28,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:12:28,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:28,079 INFO L225 Difference]: With dead ends: 20503 [2022-07-19 18:12:28,079 INFO L226 Difference]: Without dead ends: 20371 [2022-07-19 18:12:28,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:12:28,087 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 7206 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7206 SdHoareTripleChecker+Valid, 3454 SdHoareTripleChecker+Invalid, 3069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:28,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7206 Valid, 3454 Invalid, 3069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:12:28,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20371 states. [2022-07-19 18:12:33,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20371 to 15855. [2022-07-19 18:12:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15855 states, 15848 states have (on average 1.4609414437152952) internal successors, (23153), 15854 states have internal predecessors, (23153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:33,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15855 states to 15855 states and 23153 transitions. [2022-07-19 18:12:33,661 INFO L78 Accepts]: Start accepts. Automaton has 15855 states and 23153 transitions. Word has length 71 [2022-07-19 18:12:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:33,662 INFO L495 AbstractCegarLoop]: Abstraction has 15855 states and 23153 transitions. [2022-07-19 18:12:33,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:33,662 INFO L276 IsEmpty]: Start isEmpty. Operand 15855 states and 23153 transitions. [2022-07-19 18:12:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:12:33,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:33,664 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] [2022-07-19 18:12:33,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-19 18:12:33,664 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash -331643833, now seen corresponding path program 1 times [2022-07-19 18:12:33,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:33,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89909682] [2022-07-19 18:12:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:33,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:33,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:33,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89909682] [2022-07-19 18:12:33,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89909682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:33,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:33,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:12:33,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96155214] [2022-07-19 18:12:33,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:33,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:12:33,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:12:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:12:33,769 INFO L87 Difference]: Start difference. First operand 15855 states and 23153 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:42,645 INFO L93 Difference]: Finished difference Result 20614 states and 29833 transitions. [2022-07-19 18:12:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:12:42,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:12:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:42,668 INFO L225 Difference]: With dead ends: 20614 [2022-07-19 18:12:42,668 INFO L226 Difference]: Without dead ends: 20462 [2022-07-19 18:12:42,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:12:42,672 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 6904 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6904 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 3356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:42,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6904 Valid, 3537 Invalid, 3356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3180 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:12:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20462 states. [2022-07-19 18:12:48,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20462 to 15855. [2022-07-19 18:12:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15855 states, 15848 states have (on average 1.4608152448258456) internal successors, (23151), 15854 states have internal predecessors, (23151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:12:48,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15855 states to 15855 states and 23151 transitions. [2022-07-19 18:12:48,137 INFO L78 Accepts]: Start accepts. Automaton has 15855 states and 23151 transitions. Word has length 71 [2022-07-19 18:12:48,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:12:48,137 INFO L495 AbstractCegarLoop]: Abstraction has 15855 states and 23151 transitions. [2022-07-19 18:12:48,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:48,137 INFO L276 IsEmpty]: Start isEmpty. Operand 15855 states and 23151 transitions. [2022-07-19 18:12:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:12:48,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:12:48,139 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] [2022-07-19 18:12:48,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-19 18:12:48,140 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:12:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:12:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1936211158, now seen corresponding path program 1 times [2022-07-19 18:12:48,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:12:48,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840874338] [2022-07-19 18:12:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:12:48,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:12:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:12:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:12:48,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:12:48,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840874338] [2022-07-19 18:12:48,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840874338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:12:48,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:12:48,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:12:48,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347697355] [2022-07-19 18:12:48,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:12:48,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:12:48,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:12:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:12:48,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:12:48,262 INFO L87 Difference]: Start difference. First operand 15855 states and 23151 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:12:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:12:57,097 INFO L93 Difference]: Finished difference Result 20500 states and 29708 transitions. [2022-07-19 18:12:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:12:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:12:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:12:57,123 INFO L225 Difference]: With dead ends: 20500 [2022-07-19 18:12:57,123 INFO L226 Difference]: Without dead ends: 20371 [2022-07-19 18:12:57,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:12:57,128 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 7145 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7145 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:12:57,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7145 Valid, 3502 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:12:57,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20371 states. [2022-07-19 18:13:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20371 to 15850. [2022-07-19 18:13:02,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15850 states, 15843 states have (on average 1.4607713185634035) internal successors, (23143), 15849 states have internal predecessors, (23143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15850 states to 15850 states and 23143 transitions. [2022-07-19 18:13:02,674 INFO L78 Accepts]: Start accepts. Automaton has 15850 states and 23143 transitions. Word has length 71 [2022-07-19 18:13:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:13:02,674 INFO L495 AbstractCegarLoop]: Abstraction has 15850 states and 23143 transitions. [2022-07-19 18:13:02,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:13:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 15850 states and 23143 transitions. [2022-07-19 18:13:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:13:02,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:13:02,676 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] [2022-07-19 18:13:02,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-19 18:13:02,676 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:13:02,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:13:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash 648906819, now seen corresponding path program 1 times [2022-07-19 18:13:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:13:02,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890584101] [2022-07-19 18:13:02,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:13:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:13:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:13:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:13:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:13:02,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890584101] [2022-07-19 18:13:02,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890584101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:13:02,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:13:02,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:13:02,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155234049] [2022-07-19 18:13:02,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:13:02,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:13:02,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:13:02,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:13:02,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:13:02,777 INFO L87 Difference]: Start difference. First operand 15850 states and 23143 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:13:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:13:11,659 INFO L93 Difference]: Finished difference Result 20596 states and 29805 transitions. [2022-07-19 18:13:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:13:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:13:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:13:11,689 INFO L225 Difference]: With dead ends: 20596 [2022-07-19 18:13:11,690 INFO L226 Difference]: Without dead ends: 20457 [2022-07-19 18:13:11,695 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 [2022-07-19 18:13:11,696 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 5369 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5369 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:13:11,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5369 Valid, 3368 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:13:11,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2022-07-19 18:13:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 15847. [2022-07-19 18:13:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15847 states, 15840 states have (on average 1.4607954545454545) internal successors, (23139), 15846 states have internal predecessors, (23139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:13:17,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15847 states to 15847 states and 23139 transitions. [2022-07-19 18:13:17,238 INFO L78 Accepts]: Start accepts. Automaton has 15847 states and 23139 transitions. Word has length 71 [2022-07-19 18:13:17,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:13:17,238 INFO L495 AbstractCegarLoop]: Abstraction has 15847 states and 23139 transitions. [2022-07-19 18:13:17,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:13:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 15847 states and 23139 transitions. [2022-07-19 18:13:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 18:13:17,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:13:17,241 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] [2022-07-19 18:13:17,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-19 18:13:17,241 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-07-19 18:13:17,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:13:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash -465375336, now seen corresponding path program 1 times [2022-07-19 18:13:17,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:13:17,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193660960] [2022-07-19 18:13:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:13:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:13:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:13:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:13:17,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:13:17,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193660960] [2022-07-19 18:13:17,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193660960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:13:17,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:13:17,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:13:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045473526] [2022-07-19 18:13:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:13:17,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:13:17,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:13:17,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:13:17,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:13:17,343 INFO L87 Difference]: Start difference. First operand 15847 states and 23139 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-07-19 18:13:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:13:26,424 INFO L93 Difference]: Finished difference Result 20492 states and 29696 transitions. [2022-07-19 18:13:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:13:26,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-07-19 18:13:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:13:26,452 INFO L225 Difference]: With dead ends: 20492 [2022-07-19 18:13:26,452 INFO L226 Difference]: Without dead ends: 20363 [2022-07-19 18:13:26,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-19 18:13:26,458 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 3439 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3439 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 3143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:13:26,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3439 Valid, 3734 Invalid, 3143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 18:13:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20363 states.