./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.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 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:29:43,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:29:43,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:29:43,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:29:43,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:29:43,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:29:43,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:29:43,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:29:43,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:29:43,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:29:43,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:29:43,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:29:43,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:29:43,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:29:43,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:29:43,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:29:43,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:29:43,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:29:43,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:29:43,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:29:43,185 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:29:43,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:29:43,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:29:43,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:29:43,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:29:43,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:29:43,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:29:43,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:29:43,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:29:43,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:29:43,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:29:43,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:29:43,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:29:43,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:29:43,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:29:43,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:29:43,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:29:43,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:29:43,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:29:43,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:29:43,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:29:43,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:29:43,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:29:43,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:29:43,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:29:43,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:29:43,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:29:43,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:29:43,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:29:43,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:29:43,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:29:43,244 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:29:43,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:29:43,245 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:29:43,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:29:43,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:29:43,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:29:43,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:29:43,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:29:43,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:29:43,246 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:29:43,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:29:43,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:29:43,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:29:43,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:29:43,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:29:43,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:29:43,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:29:43,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:29:43,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:29:43,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:29:43,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:29:43,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:29:43,250 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:29:43,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:29:43,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:29:43,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd [2022-07-22 18:29:43,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:29:43,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:29:43,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:29:43,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:29:43,481 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:29:43,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:29:43,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c1fcc7c/cf6dbfa8a5ba4e4a8eaaff8220bd7c58/FLAG47fcc8fa5 [2022-07-22 18:29:44,321 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:29:44,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:29:44,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c1fcc7c/cf6dbfa8a5ba4e4a8eaaff8220bd7c58/FLAG47fcc8fa5 [2022-07-22 18:29:44,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5c1fcc7c/cf6dbfa8a5ba4e4a8eaaff8220bd7c58 [2022-07-22 18:29:44,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:29:44,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:29:44,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:29:44,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:29:44,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:29:44,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:29:44" (1/1) ... [2022-07-22 18:29:44,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ad6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:44, skipping insertion in model container [2022-07-22 18:29:44,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:29:44" (1/1) ... [2022-07-22 18:29:44,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:29:45,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:29:45,959 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-07-22 18:29:46,051 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-07-22 18:29:46,194 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-07-22 18:29:46,253 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-07-22 18:29:46,269 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-07-22 18:29:46,275 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-07-22 18:29:46,307 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-07-22 18:29:46,321 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-07-22 18:29:46,375 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-07-22 18:29:46,439 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-07-22 18:29:46,589 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-07-22 18:29:46,623 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-07-22 18:29:46,660 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-07-22 18:29:46,674 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-07-22 18:29:46,702 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-07-22 18:29:46,726 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-07-22 18:29:46,751 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-07-22 18:29:46,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-07-22 18:29:46,976 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-07-22 18:29:47,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:29:47,155 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:29:47,375 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-07-22 18:29:47,421 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-07-22 18:29:47,492 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-07-22 18:29:47,538 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-07-22 18:29:47,550 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-07-22 18:29:47,554 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-07-22 18:29:47,579 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-07-22 18:29:47,590 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-07-22 18:29:47,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-07-22 18:29:47,672 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-07-22 18:29:47,829 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-07-22 18:29:47,855 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-07-22 18:29:47,884 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-07-22 18:29:47,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-07-22 18:29:47,902 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-07-22 18:29:47,923 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-07-22 18:29:47,944 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-07-22 18:29:47,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-07-22 18:29:48,112 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-07-22 18:29:48,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:29:48,298 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:29:48,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48 WrapperNode [2022-07-22 18:29:48,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:29:48,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:29:48,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:29:48,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:29:48,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,667 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28483 [2022-07-22 18:29:48,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:29:48,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:29:48,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:29:48,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:29:48,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:48,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:49,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:49,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:49,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:29:49,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:29:49,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:29:49,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:29:49,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (1/1) ... [2022-07-22 18:29:49,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:29:49,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:29:49,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 18:29:49,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 18:29:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:29:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:29:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:29:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:29:49,898 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:29:49,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:29:58,904 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:29:58,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:29:58,974 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 18:29:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:29:58 BoogieIcfgContainer [2022-07-22 18:29:58,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:29:58,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:29:58,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:29:58,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:29:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:29:44" (1/3) ... [2022-07-22 18:29:58,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1736804a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:29:58, skipping insertion in model container [2022-07-22 18:29:58,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:29:48" (2/3) ... [2022-07-22 18:29:58,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1736804a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:29:58, skipping insertion in model container [2022-07-22 18:29:58,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:29:58" (3/3) ... [2022-07-22 18:29:58,997 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:29:59,010 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:29:59,011 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-07-22 18:29:59,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:29:59,197 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@48d1bf59, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@481a0f24 [2022-07-22 18:29:59,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-07-22 18:29:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 6183 states, 6163 states have (on average 1.8075612526367029) internal successors, (11140), 6182 states have internal predecessors, (11140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:29:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 18:29:59,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:29:59,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:29:59,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:29:59,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:29:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 642976960, now seen corresponding path program 1 times [2022-07-22 18:29:59,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:29:59,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267007054] [2022-07-22 18:29:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:29:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:29:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:29:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:29:59,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:29:59,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267007054] [2022-07-22 18:29:59,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267007054] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:29:59,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:29:59,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:29:59,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306658748] [2022-07-22 18:29:59,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:29:59,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:29:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:29:59,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:29:59,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:29:59,820 INFO L87 Difference]: Start difference. First operand has 6183 states, 6163 states have (on average 1.8075612526367029) internal successors, (11140), 6182 states have internal predecessors, (11140), 0 states have call successors, (0), 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 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:04,499 INFO L93 Difference]: Finished difference Result 9223 states and 16402 transitions. [2022-07-22 18:30:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:30:04,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-07-22 18:30:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:04,548 INFO L225 Difference]: With dead ends: 9223 [2022-07-22 18:30:04,548 INFO L226 Difference]: Without dead ends: 5815 [2022-07-22 18:30:04,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:30:04,574 INFO L413 NwaCegarLoop]: 4776 mSDtfsCounter, 29192 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29192 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 4795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:04,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29192 Valid, 5738 Invalid, 4795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-22 18:30:04,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2022-07-22 18:30:04,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5785. [2022-07-22 18:30:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5766 states have (on average 1.3331599028789456) internal successors, (7687), 5784 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7687 transitions. [2022-07-22 18:30:04,892 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7687 transitions. Word has length 77 [2022-07-22 18:30:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:04,895 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7687 transitions. [2022-07-22 18:30:04,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7687 transitions. [2022-07-22 18:30:04,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 18:30:04,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:04,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:04,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 18:30:04,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:04,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1955930775, now seen corresponding path program 1 times [2022-07-22 18:30:04,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:04,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471944188] [2022-07-22 18:30:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:04,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:05,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471944188] [2022-07-22 18:30:05,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471944188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:05,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:05,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:30:05,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633627692] [2022-07-22 18:30:05,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:05,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:30:05,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:30:05,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:30:05,215 INFO L87 Difference]: Start difference. First operand 5785 states and 7687 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:12,765 INFO L93 Difference]: Finished difference Result 6282 states and 8361 transitions. [2022-07-22 18:30:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:30:12,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-07-22 18:30:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:12,788 INFO L225 Difference]: With dead ends: 6282 [2022-07-22 18:30:12,789 INFO L226 Difference]: Without dead ends: 6277 [2022-07-22 18:30:12,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-22 18:30:12,793 INFO L413 NwaCegarLoop]: 3022 mSDtfsCounter, 28162 mSDsluCounter, 10471 mSDsCounter, 0 mSdLazyCounter, 15074 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28162 SdHoareTripleChecker+Valid, 13493 SdHoareTripleChecker+Invalid, 15566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 15074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:12,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28162 Valid, 13493 Invalid, 15566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [492 Valid, 15074 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-22 18:30:12,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2022-07-22 18:30:12,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5785. [2022-07-22 18:30:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5766 states have (on average 1.3329864724245577) internal successors, (7686), 5784 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7686 transitions. [2022-07-22 18:30:13,022 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7686 transitions. Word has length 78 [2022-07-22 18:30:13,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:13,026 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7686 transitions. [2022-07-22 18:30:13,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7686 transitions. [2022-07-22 18:30:13,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 18:30:13,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:13,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:13,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 18:30:13,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:13,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2136533534, now seen corresponding path program 1 times [2022-07-22 18:30:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:13,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088516463] [2022-07-22 18:30:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:13,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:13,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088516463] [2022-07-22 18:30:13,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088516463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:13,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:13,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:30:13,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293225979] [2022-07-22 18:30:13,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:13,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:30:13,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:13,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:30:13,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:30:13,216 INFO L87 Difference]: Start difference. First operand 5785 states and 7686 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:16,924 INFO L93 Difference]: Finished difference Result 11480 states and 15434 transitions. [2022-07-22 18:30:16,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:30:16,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-07-22 18:30:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:16,952 INFO L225 Difference]: With dead ends: 11480 [2022-07-22 18:30:16,953 INFO L226 Difference]: Without dead ends: 7760 [2022-07-22 18:30:16,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:30:16,964 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 23411 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 4727 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23411 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 4727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:16,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23411 Valid, 3936 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 4727 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-22 18:30:16,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2022-07-22 18:30:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7736. [2022-07-22 18:30:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7736 states, 7717 states have (on average 1.3389918362057796) internal successors, (10333), 7735 states have internal predecessors, (10333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7736 states to 7736 states and 10333 transitions. [2022-07-22 18:30:17,353 INFO L78 Accepts]: Start accepts. Automaton has 7736 states and 10333 transitions. Word has length 78 [2022-07-22 18:30:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:17,356 INFO L495 AbstractCegarLoop]: Abstraction has 7736 states and 10333 transitions. [2022-07-22 18:30:17,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:17,356 INFO L276 IsEmpty]: Start isEmpty. Operand 7736 states and 10333 transitions. [2022-07-22 18:30:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:30:17,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:17,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:17,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 18:30:17,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash 816480341, now seen corresponding path program 1 times [2022-07-22 18:30:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:17,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660234198] [2022-07-22 18:30:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:17,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:17,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660234198] [2022-07-22 18:30:17,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660234198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:17,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:17,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:30:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341145964] [2022-07-22 18:30:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:17,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:30:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:30:17,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:30:17,533 INFO L87 Difference]: Start difference. First operand 7736 states and 10333 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:20,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:20,905 INFO L93 Difference]: Finished difference Result 15140 states and 20342 transitions. [2022-07-22 18:30:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:30:20,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-22 18:30:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:20,939 INFO L225 Difference]: With dead ends: 15140 [2022-07-22 18:30:20,939 INFO L226 Difference]: Without dead ends: 9760 [2022-07-22 18:30:20,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:30:20,954 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 21219 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21219 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 4371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:20,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21219 Valid, 3626 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-22 18:30:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9760 states. [2022-07-22 18:30:21,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9760 to 9734. [2022-07-22 18:30:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9734 states, 9715 states have (on average 1.3288728769943388) internal successors, (12910), 9733 states have internal predecessors, (12910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:21,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9734 states to 9734 states and 12910 transitions. [2022-07-22 18:30:21,429 INFO L78 Accepts]: Start accepts. Automaton has 9734 states and 12910 transitions. Word has length 79 [2022-07-22 18:30:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:21,430 INFO L495 AbstractCegarLoop]: Abstraction has 9734 states and 12910 transitions. [2022-07-22 18:30:21,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:21,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9734 states and 12910 transitions. [2022-07-22 18:30:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:30:21,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:21,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:21,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 18:30:21,446 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:21,447 INFO L85 PathProgramCache]: Analyzing trace with hash 42417281, now seen corresponding path program 1 times [2022-07-22 18:30:21,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:21,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673926347] [2022-07-22 18:30:21,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:21,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:21,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:21,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673926347] [2022-07-22 18:30:21,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673926347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:21,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:21,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:30:21,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751903074] [2022-07-22 18:30:21,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:21,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:30:21,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:30:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:30:21,909 INFO L87 Difference]: Start difference. First operand 9734 states and 12910 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:27,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:27,056 INFO L93 Difference]: Finished difference Result 24297 states and 34725 transitions. [2022-07-22 18:30:27,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-22 18:30:27,056 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-22 18:30:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:27,110 INFO L225 Difference]: With dead ends: 24297 [2022-07-22 18:30:27,110 INFO L226 Difference]: Without dead ends: 24289 [2022-07-22 18:30:27,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-07-22 18:30:27,120 INFO L413 NwaCegarLoop]: 6230 mSDtfsCounter, 45233 mSDsluCounter, 36605 mSDsCounter, 0 mSdLazyCounter, 5346 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45233 SdHoareTripleChecker+Valid, 42835 SdHoareTripleChecker+Invalid, 6226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 5346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:27,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45233 Valid, 42835 Invalid, 6226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [880 Valid, 5346 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-22 18:30:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24289 states. [2022-07-22 18:30:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24289 to 9726. [2022-07-22 18:30:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9726 states, 9708 states have (on average 1.3290070045323445) internal successors, (12902), 9725 states have internal predecessors, (12902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9726 states to 9726 states and 12902 transitions. [2022-07-22 18:30:27,747 INFO L78 Accepts]: Start accepts. Automaton has 9726 states and 12902 transitions. Word has length 79 [2022-07-22 18:30:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:27,749 INFO L495 AbstractCegarLoop]: Abstraction has 9726 states and 12902 transitions. [2022-07-22 18:30:27,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9726 states and 12902 transitions. [2022-07-22 18:30:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-22 18:30:27,771 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:27,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:27,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 18:30:27,771 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1994039540, now seen corresponding path program 1 times [2022-07-22 18:30:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:27,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252161127] [2022-07-22 18:30:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:27,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:27,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252161127] [2022-07-22 18:30:27,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252161127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:27,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:27,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:30:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072845823] [2022-07-22 18:30:27,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:27,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:30:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:30:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:30:27,865 INFO L87 Difference]: Start difference. First operand 9726 states and 12902 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:30,934 INFO L93 Difference]: Finished difference Result 17851 states and 23937 transitions. [2022-07-22 18:30:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:30:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-07-22 18:30:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:30,963 INFO L225 Difference]: With dead ends: 17851 [2022-07-22 18:30:30,963 INFO L226 Difference]: Without dead ends: 11721 [2022-07-22 18:30:30,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:30:30,978 INFO L413 NwaCegarLoop]: 2427 mSDtfsCounter, 17725 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17725 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:30,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17725 Valid, 3189 Invalid, 3418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-22 18:30:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11721 states. [2022-07-22 18:30:31,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11721 to 11692. [2022-07-22 18:30:31,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 11674 states have (on average 1.3539489463765633) internal successors, (15806), 11691 states have internal predecessors, (15806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 15806 transitions. [2022-07-22 18:30:31,791 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 15806 transitions. Word has length 79 [2022-07-22 18:30:31,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:31,792 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 15806 transitions. [2022-07-22 18:30:31,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 15806 transitions. [2022-07-22 18:30:31,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:30:31,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:31,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:31,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 18:30:31,808 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:31,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801169, now seen corresponding path program 1 times [2022-07-22 18:30:31,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:31,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370411365] [2022-07-22 18:30:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:31,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:31,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:31,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370411365] [2022-07-22 18:30:31,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370411365] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:31,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:31,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 18:30:31,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352490829] [2022-07-22 18:30:31,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:31,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 18:30:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:31,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 18:30:31,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-22 18:30:31,995 INFO L87 Difference]: Start difference. First operand 11692 states and 15806 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:40,006 INFO L93 Difference]: Finished difference Result 21035 states and 29682 transitions. [2022-07-22 18:30:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:30:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-22 18:30:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:40,051 INFO L225 Difference]: With dead ends: 21035 [2022-07-22 18:30:40,051 INFO L226 Difference]: Without dead ends: 19312 [2022-07-22 18:30:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:30:40,061 INFO L413 NwaCegarLoop]: 2519 mSDtfsCounter, 12563 mSDsluCounter, 10716 mSDsCounter, 0 mSdLazyCounter, 14977 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12563 SdHoareTripleChecker+Valid, 13235 SdHoareTripleChecker+Invalid, 15058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 14977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12563 Valid, 13235 Invalid, 15058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 14977 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-22 18:30:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-07-22 18:30:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 11699. [2022-07-22 18:30:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 11681 states have (on average 1.3537368375995207) internal successors, (15813), 11698 states have internal predecessors, (15813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 15813 transitions. [2022-07-22 18:30:41,094 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 15813 transitions. Word has length 80 [2022-07-22 18:30:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:41,094 INFO L495 AbstractCegarLoop]: Abstraction has 11699 states and 15813 transitions. [2022-07-22 18:30:41,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 15813 transitions. [2022-07-22 18:30:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 18:30:41,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:41,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:41,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 18:30:41,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1294381398, now seen corresponding path program 1 times [2022-07-22 18:30:41,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:41,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37739240] [2022-07-22 18:30:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:41,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37739240] [2022-07-22 18:30:41,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37739240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:41,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:41,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:30:41,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340148396] [2022-07-22 18:30:41,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:41,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:30:41,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:41,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:30:41,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:30:41,193 INFO L87 Difference]: Start difference. First operand 11699 states and 15813 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:44,681 INFO L93 Difference]: Finished difference Result 23220 states and 31550 transitions. [2022-07-22 18:30:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:30:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-07-22 18:30:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:44,705 INFO L225 Difference]: With dead ends: 23220 [2022-07-22 18:30:44,705 INFO L226 Difference]: Without dead ends: 15844 [2022-07-22 18:30:44,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:30:44,716 INFO L413 NwaCegarLoop]: 2093 mSDtfsCounter, 15524 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15524 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:44,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15524 Valid, 2815 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-22 18:30:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2022-07-22 18:30:46,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15824. [2022-07-22 18:30:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15824 states, 15806 states have (on average 1.3551815766164748) internal successors, (21420), 15823 states have internal predecessors, (21420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15824 states to 15824 states and 21420 transitions. [2022-07-22 18:30:46,139 INFO L78 Accepts]: Start accepts. Automaton has 15824 states and 21420 transitions. Word has length 80 [2022-07-22 18:30:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:46,139 INFO L495 AbstractCegarLoop]: Abstraction has 15824 states and 21420 transitions. [2022-07-22 18:30:46,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 15824 states and 21420 transitions. [2022-07-22 18:30:46,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:30:46,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:46,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:46,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 18:30:46,154 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:46,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1633622625, now seen corresponding path program 1 times [2022-07-22 18:30:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:46,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172818836] [2022-07-22 18:30:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:46,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:46,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172818836] [2022-07-22 18:30:46,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172818836] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:46,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:46,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:30:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369415740] [2022-07-22 18:30:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:46,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:30:46,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:46,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:30:46,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:30:46,232 INFO L87 Difference]: Start difference. First operand 15824 states and 21420 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:48,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:30:48,361 INFO L93 Difference]: Finished difference Result 31749 states and 43433 transitions. [2022-07-22 18:30:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:30:48,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-07-22 18:30:48,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:30:48,390 INFO L225 Difference]: With dead ends: 31749 [2022-07-22 18:30:48,391 INFO L226 Difference]: Without dead ends: 19509 [2022-07-22 18:30:48,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:30:48,406 INFO L413 NwaCegarLoop]: 3952 mSDtfsCounter, 3993 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3993 SdHoareTripleChecker+Valid, 5148 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:30:48,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3993 Valid, 5148 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:30:48,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2022-07-22 18:30:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19482. [2022-07-22 18:30:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19482 states, 19464 states have (on average 1.3550143855322647) internal successors, (26374), 19481 states have internal predecessors, (26374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19482 states to 19482 states and 26374 transitions. [2022-07-22 18:30:50,223 INFO L78 Accepts]: Start accepts. Automaton has 19482 states and 26374 transitions. Word has length 81 [2022-07-22 18:30:50,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:30:50,223 INFO L495 AbstractCegarLoop]: Abstraction has 19482 states and 26374 transitions. [2022-07-22 18:30:50,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:30:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 19482 states and 26374 transitions. [2022-07-22 18:30:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:30:50,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:30:50,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:30:50,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 18:30:50,235 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:30:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:30:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1819290860, now seen corresponding path program 1 times [2022-07-22 18:30:50,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:30:50,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303816958] [2022-07-22 18:30:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:30:50,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:30:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:30:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:30:50,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:30:50,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303816958] [2022-07-22 18:30:50,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303816958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:30:50,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:30:50,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:30:50,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200827798] [2022-07-22 18:30:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:30:50,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:30:50,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:30:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:30:50,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:30:50,563 INFO L87 Difference]: Start difference. First operand 19482 states and 26374 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:31:02,251 INFO L93 Difference]: Finished difference Result 52425 states and 76675 transitions. [2022-07-22 18:31:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-22 18:31:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-07-22 18:31:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:31:02,341 INFO L225 Difference]: With dead ends: 52425 [2022-07-22 18:31:02,341 INFO L226 Difference]: Without dead ends: 52421 [2022-07-22 18:31:02,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-07-22 18:31:02,355 INFO L413 NwaCegarLoop]: 4063 mSDtfsCounter, 30610 mSDsluCounter, 26063 mSDsCounter, 0 mSdLazyCounter, 4804 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30610 SdHoareTripleChecker+Valid, 30126 SdHoareTripleChecker+Invalid, 5481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 4804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:31:02,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30610 Valid, 30126 Invalid, 5481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 4804 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-22 18:31:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52421 states. [2022-07-22 18:31:04,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52421 to 19478. [2022-07-22 18:31:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.3550177277632187) internal successors, (26370), 19477 states have internal predecessors, (26370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26370 transitions. [2022-07-22 18:31:04,842 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26370 transitions. Word has length 81 [2022-07-22 18:31:04,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:31:04,842 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26370 transitions. [2022-07-22 18:31:04,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26370 transitions. [2022-07-22 18:31:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 18:31:04,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:31:04,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:31:04,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 18:31:04,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:31:04,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:31:04,854 INFO L85 PathProgramCache]: Analyzing trace with hash 153905521, now seen corresponding path program 1 times [2022-07-22 18:31:04,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:31:04,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770828274] [2022-07-22 18:31:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:31:04,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:31:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:31:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:31:04,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:31:04,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770828274] [2022-07-22 18:31:04,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770828274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:31:04,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:31:04,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:31:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960884076] [2022-07-22 18:31:04,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:31:04,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:31:04,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:31:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:31:04,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:31:04,987 INFO L87 Difference]: Start difference. First operand 19478 states and 26370 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:31:11,790 INFO L93 Difference]: Finished difference Result 24786 states and 33764 transitions. [2022-07-22 18:31:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:31:11,790 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-07-22 18:31:11,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:31:11,825 INFO L225 Difference]: With dead ends: 24786 [2022-07-22 18:31:11,825 INFO L226 Difference]: Without dead ends: 24778 [2022-07-22 18:31:11,832 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 [2022-07-22 18:31:11,832 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 21091 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 8733 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21091 SdHoareTripleChecker+Valid, 8712 SdHoareTripleChecker+Invalid, 9300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 8733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-22 18:31:11,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21091 Valid, 8712 Invalid, 9300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 8733 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-22 18:31:11,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24778 states. [2022-07-22 18:31:14,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24778 to 19478. [2022-07-22 18:31:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.354966342942295) internal successors, (26369), 19477 states have internal predecessors, (26369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26369 transitions. [2022-07-22 18:31:14,059 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26369 transitions. Word has length 81 [2022-07-22 18:31:14,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:31:14,060 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26369 transitions. [2022-07-22 18:31:14,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26369 transitions. [2022-07-22 18:31:14,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:31:14,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:31:14,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:31:14,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 18:31:14,072 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:31:14,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:31:14,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1262373862, now seen corresponding path program 1 times [2022-07-22 18:31:14,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:31:14,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686436906] [2022-07-22 18:31:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:31:14,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:31:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:31:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:31:14,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:31:14,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686436906] [2022-07-22 18:31:14,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686436906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:31:14,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:31:14,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:31:14,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614769574] [2022-07-22 18:31:14,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:31:14,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:31:14,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:31:14,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:31:14,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:31:14,297 INFO L87 Difference]: Start difference. First operand 19478 states and 26369 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:31:25,144 INFO L93 Difference]: Finished difference Result 35516 states and 50334 transitions. [2022-07-22 18:31:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 18:31:25,145 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-22 18:31:25,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:31:25,194 INFO L225 Difference]: With dead ends: 35516 [2022-07-22 18:31:25,194 INFO L226 Difference]: Without dead ends: 31010 [2022-07-22 18:31:25,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2022-07-22 18:31:25,210 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 11171 mSDsluCounter, 10904 mSDsCounter, 0 mSdLazyCounter, 12854 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11171 SdHoareTripleChecker+Valid, 13097 SdHoareTripleChecker+Invalid, 13156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 12854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:31:25,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11171 Valid, 13097 Invalid, 13156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 12854 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-22 18:31:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31010 states. [2022-07-22 18:31:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31010 to 19478. [2022-07-22 18:31:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19478 states, 19461 states have (on average 1.354863573300447) internal successors, (26367), 19477 states have internal predecessors, (26367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26367 transitions. [2022-07-22 18:31:27,770 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26367 transitions. Word has length 82 [2022-07-22 18:31:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:31:27,770 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26367 transitions. [2022-07-22 18:31:27,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26367 transitions. [2022-07-22 18:31:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:31:27,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:31:27,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:31:27,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 18:31:27,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:31:27,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:31:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 143681813, now seen corresponding path program 1 times [2022-07-22 18:31:27,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:31:27,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172097253] [2022-07-22 18:31:27,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:31:27,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:31:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:31:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:31:27,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:31:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172097253] [2022-07-22 18:31:27,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172097253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:31:27,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:31:27,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 18:31:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750501827] [2022-07-22 18:31:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:31:27,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 18:31:27,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:31:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 18:31:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 18:31:27,984 INFO L87 Difference]: Start difference. First operand 19478 states and 26367 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:38,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:31:38,217 INFO L93 Difference]: Finished difference Result 31677 states and 45078 transitions. [2022-07-22 18:31:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 18:31:38,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-22 18:31:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:31:38,260 INFO L225 Difference]: With dead ends: 31677 [2022-07-22 18:31:38,261 INFO L226 Difference]: Without dead ends: 26922 [2022-07-22 18:31:38,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:31:38,273 INFO L413 NwaCegarLoop]: 2120 mSDtfsCounter, 18181 mSDsluCounter, 10697 mSDsCounter, 0 mSdLazyCounter, 13088 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18181 SdHoareTripleChecker+Valid, 12817 SdHoareTripleChecker+Invalid, 13174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 13088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:31:38,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18181 Valid, 12817 Invalid, 13174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 13088 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-22 18:31:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26922 states. [2022-07-22 18:31:40,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26922 to 19227. [2022-07-22 18:31:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 19210 states have (on average 1.3562727745965644) internal successors, (26054), 19226 states have internal predecessors, (26054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 26054 transitions. [2022-07-22 18:31:40,744 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 26054 transitions. Word has length 82 [2022-07-22 18:31:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:31:40,744 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 26054 transitions. [2022-07-22 18:31:40,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 26054 transitions. [2022-07-22 18:31:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:31:40,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:31:40,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:31:40,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 18:31:40,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:31:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:31:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash -521520380, now seen corresponding path program 1 times [2022-07-22 18:31:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:31:40,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098504726] [2022-07-22 18:31:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:31:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:31:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:31:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:31:41,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:31:41,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098504726] [2022-07-22 18:31:41,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098504726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:31:41,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:31:41,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:31:41,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830042422] [2022-07-22 18:31:41,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:31:41,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:31:41,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:31:41,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:31:41,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:31:41,062 INFO L87 Difference]: Start difference. First operand 19227 states and 26054 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:52,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:31:52,692 INFO L93 Difference]: Finished difference Result 49676 states and 72229 transitions. [2022-07-22 18:31:52,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 18:31:52,693 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-22 18:31:52,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:31:52,754 INFO L225 Difference]: With dead ends: 49676 [2022-07-22 18:31:52,754 INFO L226 Difference]: Without dead ends: 45065 [2022-07-22 18:31:52,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:31:52,769 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 27069 mSDsluCounter, 23158 mSDsCounter, 0 mSdLazyCounter, 3318 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27069 SdHoareTripleChecker+Valid, 27460 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 3318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:31:52,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27069 Valid, 27460 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 3318 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 18:31:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45065 states. [2022-07-22 18:31:55,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45065 to 19195. [2022-07-22 18:31:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19195 states, 19178 states have (on average 1.3565022421524664) internal successors, (26015), 19194 states have internal predecessors, (26015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19195 states to 19195 states and 26015 transitions. [2022-07-22 18:31:55,925 INFO L78 Accepts]: Start accepts. Automaton has 19195 states and 26015 transitions. Word has length 82 [2022-07-22 18:31:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:31:55,925 INFO L495 AbstractCegarLoop]: Abstraction has 19195 states and 26015 transitions. [2022-07-22 18:31:55,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:31:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 19195 states and 26015 transitions. [2022-07-22 18:31:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-22 18:31:55,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:31:55,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:31:55,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 18:31:55,937 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:31:55,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:31:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1082319899, now seen corresponding path program 1 times [2022-07-22 18:31:55,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:31:55,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94407406] [2022-07-22 18:31:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:31:55,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:31:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:31:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:31:56,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:31:56,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94407406] [2022-07-22 18:31:56,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94407406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:31:56,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:31:56,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 18:31:56,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061233850] [2022-07-22 18:31:56,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:31:56,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 18:31:56,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:31:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 18:31:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-22 18:31:56,115 INFO L87 Difference]: Start difference. First operand 19195 states and 26015 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:32:09,658 INFO L93 Difference]: Finished difference Result 43366 states and 62167 transitions. [2022-07-22 18:32:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:32:09,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-07-22 18:32:09,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:32:09,704 INFO L225 Difference]: With dead ends: 43366 [2022-07-22 18:32:09,704 INFO L226 Difference]: Without dead ends: 38795 [2022-07-22 18:32:09,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:32:09,717 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 13630 mSDsluCounter, 8287 mSDsCounter, 0 mSdLazyCounter, 10645 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13630 SdHoareTripleChecker+Valid, 10558 SdHoareTripleChecker+Invalid, 10969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 10645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:32:09,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13630 Valid, 10558 Invalid, 10969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 10645 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-22 18:32:09,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38795 states. [2022-07-22 18:32:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38795 to 19126. [2022-07-22 18:32:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3562719137579151) internal successors, (25917), 19125 states have internal predecessors, (25917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25917 transitions. [2022-07-22 18:32:12,995 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25917 transitions. Word has length 82 [2022-07-22 18:32:12,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:32:12,996 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25917 transitions. [2022-07-22 18:32:12,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25917 transitions. [2022-07-22 18:32:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 18:32:13,009 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:32:13,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:32:13,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 18:32:13,009 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:32:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:32:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1453267902, now seen corresponding path program 1 times [2022-07-22 18:32:13,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:32:13,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698139250] [2022-07-22 18:32:13,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:32:13,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:32:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:32:13,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:32:13,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:32:13,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698139250] [2022-07-22 18:32:13,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698139250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:32:13,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:32:13,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:32:13,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880359411] [2022-07-22 18:32:13,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:32:13,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:32:13,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:32:13,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:32:13,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:32:13,144 INFO L87 Difference]: Start difference. First operand 19126 states and 25917 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:32:26,892 INFO L93 Difference]: Finished difference Result 44973 states and 64933 transitions. [2022-07-22 18:32:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:32:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-07-22 18:32:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:32:26,947 INFO L225 Difference]: With dead ends: 44973 [2022-07-22 18:32:26,947 INFO L226 Difference]: Without dead ends: 40451 [2022-07-22 18:32:26,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-22 18:32:26,961 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 18653 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 9162 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18653 SdHoareTripleChecker+Valid, 9378 SdHoareTripleChecker+Invalid, 9620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 9162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:32:26,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18653 Valid, 9378 Invalid, 9620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 9162 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-22 18:32:26,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40451 states. [2022-07-22 18:32:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40451 to 19126. [2022-07-22 18:32:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3562195823957297) internal successors, (25916), 19125 states have internal predecessors, (25916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25916 transitions. [2022-07-22 18:32:30,475 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25916 transitions. Word has length 83 [2022-07-22 18:32:30,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:32:30,476 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25916 transitions. [2022-07-22 18:32:30,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25916 transitions. [2022-07-22 18:32:30,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 18:32:30,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:32:30,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:32:30,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 18:32:30,488 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:32:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:32:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1144387461, now seen corresponding path program 1 times [2022-07-22 18:32:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:32:30,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535418263] [2022-07-22 18:32:30,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:32:30,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:32:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:32:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:32:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:32:30,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535418263] [2022-07-22 18:32:30,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535418263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:32:30,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:32:30,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:32:30,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686485609] [2022-07-22 18:32:30,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:32:30,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:32:30,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:32:30,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:32:30,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:32:30,629 INFO L87 Difference]: Start difference. First operand 19126 states and 25916 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:32:43,762 INFO L93 Difference]: Finished difference Result 40699 states and 57983 transitions. [2022-07-22 18:32:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:32:43,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-07-22 18:32:43,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:32:43,806 INFO L225 Difference]: With dead ends: 40699 [2022-07-22 18:32:43,806 INFO L226 Difference]: Without dead ends: 36113 [2022-07-22 18:32:43,815 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 [2022-07-22 18:32:43,816 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 21503 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 9567 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21503 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 10061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 9567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:32:43,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21503 Valid, 9298 Invalid, 10061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9567 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-22 18:32:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-07-22 18:32:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-07-22 18:32:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3561672510335443) internal successors, (25915), 19125 states have internal predecessors, (25915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:47,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25915 transitions. [2022-07-22 18:32:47,360 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25915 transitions. Word has length 83 [2022-07-22 18:32:47,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:32:47,361 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25915 transitions. [2022-07-22 18:32:47,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:32:47,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25915 transitions. [2022-07-22 18:32:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 18:32:47,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:32:47,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:32:47,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 18:32:47,372 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:32:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:32:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -493973130, now seen corresponding path program 1 times [2022-07-22 18:32:47,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:32:47,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654838518] [2022-07-22 18:32:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:32:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:32:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:32:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:32:47,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:32:47,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654838518] [2022-07-22 18:32:47,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654838518] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:32:47,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:32:47,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:32:47,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193557651] [2022-07-22 18:32:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:32:47,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:32:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:32:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:32:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:32:47,493 INFO L87 Difference]: Start difference. First operand 19126 states and 25915 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:00,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:33:00,960 INFO L93 Difference]: Finished difference Result 40649 states and 57923 transitions. [2022-07-22 18:33:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:33:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-07-22 18:33:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:33:01,006 INFO L225 Difference]: With dead ends: 40649 [2022-07-22 18:33:01,006 INFO L226 Difference]: Without dead ends: 36113 [2022-07-22 18:33:01,019 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 [2022-07-22 18:33:01,020 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 21500 mSDsluCounter, 7050 mSDsCounter, 0 mSdLazyCounter, 9563 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21500 SdHoareTripleChecker+Valid, 9309 SdHoareTripleChecker+Invalid, 10057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 9563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:33:01,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21500 Valid, 9309 Invalid, 10057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9563 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-22 18:33:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-07-22 18:33:04,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-07-22 18:33:04,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.356114919671359) internal successors, (25914), 19125 states have internal predecessors, (25914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25914 transitions. [2022-07-22 18:33:04,638 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25914 transitions. Word has length 83 [2022-07-22 18:33:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:33:04,638 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25914 transitions. [2022-07-22 18:33:04,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25914 transitions. [2022-07-22 18:33:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 18:33:04,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:33:04,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:33:04,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 18:33:04,649 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:33:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:33:04,649 INFO L85 PathProgramCache]: Analyzing trace with hash 305854051, now seen corresponding path program 1 times [2022-07-22 18:33:04,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:33:04,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992294839] [2022-07-22 18:33:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:33:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:33:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:33:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:33:04,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:33:04,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992294839] [2022-07-22 18:33:04,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992294839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:33:04,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:33:04,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:33:04,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551771511] [2022-07-22 18:33:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:33:04,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:33:04,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:33:04,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:33:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:33:04,803 INFO L87 Difference]: Start difference. First operand 19126 states and 25914 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:33:16,286 INFO L93 Difference]: Finished difference Result 35769 states and 50781 transitions. [2022-07-22 18:33:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:33:16,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-07-22 18:33:16,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:33:16,326 INFO L225 Difference]: With dead ends: 35769 [2022-07-22 18:33:16,326 INFO L226 Difference]: Without dead ends: 31263 [2022-07-22 18:33:16,334 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 [2022-07-22 18:33:16,334 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 21052 mSDsluCounter, 6983 mSDsCounter, 0 mSdLazyCounter, 9011 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21052 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 9558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 9011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:33:16,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21052 Valid, 9182 Invalid, 9558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 9011 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 18:33:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31263 states. [2022-07-22 18:33:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31263 to 19126. [2022-07-22 18:33:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3560625883091737) internal successors, (25913), 19125 states have internal predecessors, (25913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25913 transitions. [2022-07-22 18:33:19,870 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25913 transitions. Word has length 83 [2022-07-22 18:33:19,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:33:19,870 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25913 transitions. [2022-07-22 18:33:19,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:33:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25913 transitions. [2022-07-22 18:33:19,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 18:33:19,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:33:19,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:33:19,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 18:33:19,881 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-22 18:33:19,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:33:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1768707315, now seen corresponding path program 1 times [2022-07-22 18:33:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:33:19,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345502580] [2022-07-22 18:33:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:33:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:33:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:33:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:33:20,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:33:20,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345502580] [2022-07-22 18:33:20,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345502580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:33:20,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:33:20,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 18:33:20,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485549457] [2022-07-22 18:33:20,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:33:20,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 18:33:20,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:33:20,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 18:33:20,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 18:33:20,062 INFO L87 Difference]: Start difference. First operand 19126 states and 25913 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 9 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)