./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.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-?-eb692b5 [2022-07-19 18:15:05,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:15:05,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:15:05,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:15:05,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:15:05,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:15:05,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:15:05,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:15:05,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:15:05,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:15:05,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:15:05,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:15:05,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:15:05,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:15:05,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:15:05,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:15:05,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:15:05,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:15:05,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:15:05,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:15:05,777 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:15:05,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:15:05,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:15:05,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:15:05,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:15:05,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:15:05,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:15:05,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:15:05,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:15:05,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:15:05,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:15:05,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:15:05,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:15:05,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:15:05,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:15:05,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:15:05,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:15:05,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:15:05,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:15:05,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:15:05,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:15:05,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:15:05,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:15:05,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:15:05,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:15:05,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:15:05,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:15:05,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:15:05,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:15:05,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:15:05,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:15:05,815 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:15:05,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:15:05,816 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:15:05,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:15:05,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:15:05,819 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:15:05,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:15:05,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:15:05,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:15:05,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:15:05,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:15:05,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:15:05,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:15:05,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:15:05,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:15:05,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:15:05,821 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:15:05,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:15:05,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:15:05,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd [2022-07-19 18:15:06,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:15:06,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:15:06,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:15:06,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:15:06,024 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:15:06,025 INFO L432 ainManager$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 [2022-07-19 18:15:06,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790dde811/ad1868c5c0f1491d94c35e4b2e455fdf/FLAG6382729e7 [2022-07-19 18:15:06,797 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:15:06,798 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 [2022-07-19 18:15:06,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790dde811/ad1868c5c0f1491d94c35e4b2e455fdf/FLAG6382729e7 [2022-07-19 18:15:06,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790dde811/ad1868c5c0f1491d94c35e4b2e455fdf [2022-07-19 18:15:06,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:15:06,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:15:06,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:15:06,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:15:06,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:15:06,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:15:06" (1/1) ... [2022-07-19 18:15:06,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1895c8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:06, skipping insertion in model container [2022-07-19 18:15:06,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:15:06" (1/1) ... [2022-07-19 18:15:06,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:15:07,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:15:07,773 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] [2022-07-19 18:15:07,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-07-19 18:15:07,958 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] [2022-07-19 18:15:08,011 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] [2022-07-19 18:15:08,026 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] [2022-07-19 18:15:08,030 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] [2022-07-19 18:15:08,072 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] [2022-07-19 18:15:08,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-07-19 18:15:08,142 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] [2022-07-19 18:15:08,182 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] [2022-07-19 18:15:08,296 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] [2022-07-19 18:15:08,325 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] [2022-07-19 18:15:08,353 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] [2022-07-19 18:15:08,363 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] [2022-07-19 18:15:08,370 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] [2022-07-19 18:15:08,390 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] [2022-07-19 18:15:08,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-07-19 18:15:08,454 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] [2022-07-19 18:15:08,578 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] [2022-07-19 18:15:08,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:15:08,823 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:15:08,956 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] [2022-07-19 18:15:08,993 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] [2022-07-19 18:15:09,049 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] [2022-07-19 18:15:09,085 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] [2022-07-19 18:15:09,096 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] [2022-07-19 18:15:09,099 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] [2022-07-19 18:15:09,120 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] [2022-07-19 18:15:09,128 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] [2022-07-19 18:15:09,162 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] [2022-07-19 18:15:09,195 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] [2022-07-19 18:15:09,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-07-19 18:15:09,307 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[389606,389619] [2022-07-19 18:15:09,329 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] [2022-07-19 18:15:09,338 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] [2022-07-19 18:15:09,342 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] [2022-07-19 18:15:09,359 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] [2022-07-19 18:15:09,375 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[448287,448300] [2022-07-19 18:15:09,413 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] [2022-07-19 18:15:09,546 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] [2022-07-19 18:15:09,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:15:09,674 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:15:09,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09 WrapperNode [2022-07-19 18:15:09,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:15:09,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:15:09,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:15:09,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:15:09,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:09,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:09,988 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28483 [2022-07-19 18:15:09,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:15:09,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:15:09,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:15:09,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:15:09,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:09,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:15:10,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:15:10,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:15:10,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:15:10,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (1/1) ... [2022-07-19 18:15:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:15:10,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:15:10,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 18:15:10,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 18:15:10,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:15:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:15:10,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:15:10,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:15:11,014 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:15:11,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:15:18,504 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:15:18,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:15:18,544 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:15:18,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:15:18 BoogieIcfgContainer [2022-07-19 18:15:18,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:15:18,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:15:18,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:15:18,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:15:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:15:06" (1/3) ... [2022-07-19 18:15:18,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a770134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:15:18, skipping insertion in model container [2022-07-19 18:15:18,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:15:09" (2/3) ... [2022-07-19 18:15:18,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a770134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:15:18, skipping insertion in model container [2022-07-19 18:15:18,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:15:18" (3/3) ... [2022-07-19 18:15:18,558 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-19 18:15:18,568 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:15:18,568 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-07-19 18:15:18,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:15:18,701 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@328415ad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9068ecb [2022-07-19 18:15:18,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-07-19 18:15:18,722 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) [2022-07-19 18:15:18,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:15:18,768 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:18,769 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] [2022-07-19 18:15:18,770 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)] === [2022-07-19 18:15:18,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 642976960, now seen corresponding path program 1 times [2022-07-19 18:15:18,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:18,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299810355] [2022-07-19 18:15:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:18,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:19,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:19,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299810355] [2022-07-19 18:15:19,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299810355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:19,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:19,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:19,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784176901] [2022-07-19 18:15:19,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:19,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:19,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:19,264 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) [2022-07-19 18:15:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:23,176 INFO L93 Difference]: Finished difference Result 9223 states and 16402 transitions. [2022-07-19 18:15:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:23,179 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 [2022-07-19 18:15:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:23,220 INFO L225 Difference]: With dead ends: 9223 [2022-07-19 18:15:23,221 INFO L226 Difference]: Without dead ends: 5815 [2022-07-19 18:15:23,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:23,242 INFO L413 NwaCegarLoop]: 4776 mSDtfsCounter, 29192 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:23,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29192 Valid, 5738 Invalid, 4795 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-19 18:15:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2022-07-19 18:15:23,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5785. [2022-07-19 18:15:23,446 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) [2022-07-19 18:15:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7687 transitions. [2022-07-19 18:15:23,461 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7687 transitions. Word has length 77 [2022-07-19 18:15:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:23,461 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7687 transitions. [2022-07-19 18:15:23,462 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) [2022-07-19 18:15:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7687 transitions. [2022-07-19 18:15:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:15:23,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:23,474 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] [2022-07-19 18:15:23,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:15:23,474 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)] === [2022-07-19 18:15:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:23,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1955930775, now seen corresponding path program 1 times [2022-07-19 18:15:23,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:23,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45375039] [2022-07-19 18:15:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:23,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:23,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45375039] [2022-07-19 18:15:23,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45375039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:23,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:23,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:15:23,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756555002] [2022-07-19 18:15:23,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:23,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:15:23,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:15:23,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:15:23,734 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) [2022-07-19 18:15:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:30,195 INFO L93 Difference]: Finished difference Result 6282 states and 8361 transitions. [2022-07-19 18:15:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:15:30,196 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 [2022-07-19 18:15:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:30,218 INFO L225 Difference]: With dead ends: 6282 [2022-07-19 18:15:30,218 INFO L226 Difference]: Without dead ends: 6277 [2022-07-19 18:15:30,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-19 18:15:30,224 INFO L413 NwaCegarLoop]: 3022 mSDtfsCounter, 28162 mSDsluCounter, 10471 mSDsCounter, 0 mSdLazyCounter, 15074 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 6.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:30,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28162 Valid, 13493 Invalid, 15566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [492 Valid, 15074 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-07-19 18:15:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2022-07-19 18:15:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5785. [2022-07-19 18:15:30,400 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) [2022-07-19 18:15:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7686 transitions. [2022-07-19 18:15:30,413 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7686 transitions. Word has length 78 [2022-07-19 18:15:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:30,413 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 7686 transitions. [2022-07-19 18:15:30,414 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) [2022-07-19 18:15:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7686 transitions. [2022-07-19 18:15:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:15:30,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:30,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:15:30,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:15:30,425 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)] === [2022-07-19 18:15:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2136533534, now seen corresponding path program 1 times [2022-07-19 18:15:30,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:30,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801140222] [2022-07-19 18:15:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:30,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:30,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801140222] [2022-07-19 18:15:30,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801140222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:30,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:30,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107315323] [2022-07-19 18:15:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:30,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:30,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:30,526 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) [2022-07-19 18:15:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:34,117 INFO L93 Difference]: Finished difference Result 11480 states and 15434 transitions. [2022-07-19 18:15:34,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:34,118 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 [2022-07-19 18:15:34,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:34,142 INFO L225 Difference]: With dead ends: 11480 [2022-07-19 18:15:34,143 INFO L226 Difference]: Without dead ends: 7760 [2022-07-19 18:15:34,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:34,153 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 23411 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 4727 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:34,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23411 Valid, 3936 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 4727 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 18:15:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2022-07-19 18:15:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7736. [2022-07-19 18:15:34,439 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) [2022-07-19 18:15:34,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7736 states to 7736 states and 10333 transitions. [2022-07-19 18:15:34,452 INFO L78 Accepts]: Start accepts. Automaton has 7736 states and 10333 transitions. Word has length 78 [2022-07-19 18:15:34,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:34,453 INFO L495 AbstractCegarLoop]: Abstraction has 7736 states and 10333 transitions. [2022-07-19 18:15:34,453 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) [2022-07-19 18:15:34,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7736 states and 10333 transitions. [2022-07-19 18:15:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:34,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:34,463 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] [2022-07-19 18:15:34,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:15:34,464 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)] === [2022-07-19 18:15:34,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:34,464 INFO L85 PathProgramCache]: Analyzing trace with hash 816480341, now seen corresponding path program 1 times [2022-07-19 18:15:34,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:34,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796322494] [2022-07-19 18:15:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:34,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:34,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:34,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796322494] [2022-07-19 18:15:34,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796322494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:34,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:34,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670968158] [2022-07-19 18:15:34,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:34,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:34,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:34,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:34,541 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) [2022-07-19 18:15:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:37,682 INFO L93 Difference]: Finished difference Result 15140 states and 20342 transitions. [2022-07-19 18:15:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:37,683 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 [2022-07-19 18:15:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:37,709 INFO L225 Difference]: With dead ends: 15140 [2022-07-19 18:15:37,710 INFO L226 Difference]: Without dead ends: 9760 [2022-07-19 18:15:37,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:37,719 INFO L413 NwaCegarLoop]: 2860 mSDtfsCounter, 21219 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:37,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21219 Valid, 3626 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-19 18:15:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9760 states. [2022-07-19 18:15:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9760 to 9734. [2022-07-19 18:15:38,017 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) [2022-07-19 18:15:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9734 states to 9734 states and 12910 transitions. [2022-07-19 18:15:38,035 INFO L78 Accepts]: Start accepts. Automaton has 9734 states and 12910 transitions. Word has length 79 [2022-07-19 18:15:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:38,035 INFO L495 AbstractCegarLoop]: Abstraction has 9734 states and 12910 transitions. [2022-07-19 18:15:38,035 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) [2022-07-19 18:15:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9734 states and 12910 transitions. [2022-07-19 18:15:38,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:38,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:38,047 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] [2022-07-19 18:15:38,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:15:38,047 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)] === [2022-07-19 18:15:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:38,049 INFO L85 PathProgramCache]: Analyzing trace with hash 42417281, now seen corresponding path program 1 times [2022-07-19 18:15:38,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:38,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487770527] [2022-07-19 18:15:38,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:38,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:38,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:38,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487770527] [2022-07-19 18:15:38,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487770527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:38,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:38,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:15:38,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642635819] [2022-07-19 18:15:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:38,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:15:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:15:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:15:38,384 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) [2022-07-19 18:15:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:43,295 INFO L93 Difference]: Finished difference Result 24297 states and 34725 transitions. [2022-07-19 18:15:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 18:15:43,295 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 [2022-07-19 18:15:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:43,338 INFO L225 Difference]: With dead ends: 24297 [2022-07-19 18:15:43,338 INFO L226 Difference]: Without dead ends: 24289 [2022-07-19 18:15:43,344 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 [2022-07-19 18:15:43,346 INFO L413 NwaCegarLoop]: 6230 mSDtfsCounter, 45233 mSDsluCounter, 36605 mSDsCounter, 0 mSdLazyCounter, 5346 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:43,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45233 Valid, 42835 Invalid, 6226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [880 Valid, 5346 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-19 18:15:43,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24289 states. [2022-07-19 18:15:43,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24289 to 9726. [2022-07-19 18:15:43,929 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) [2022-07-19 18:15:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9726 states to 9726 states and 12902 transitions. [2022-07-19 18:15:43,943 INFO L78 Accepts]: Start accepts. Automaton has 9726 states and 12902 transitions. Word has length 79 [2022-07-19 18:15:43,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:43,943 INFO L495 AbstractCegarLoop]: Abstraction has 9726 states and 12902 transitions. [2022-07-19 18:15:43,943 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) [2022-07-19 18:15:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9726 states and 12902 transitions. [2022-07-19 18:15:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:43,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:43,954 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] [2022-07-19 18:15:43,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:15:43,954 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)] === [2022-07-19 18:15:43,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1994039540, now seen corresponding path program 1 times [2022-07-19 18:15:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:43,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129216314] [2022-07-19 18:15:43,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:44,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:44,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129216314] [2022-07-19 18:15:44,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129216314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:44,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:44,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009803077] [2022-07-19 18:15:44,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:44,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:44,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:44,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:44,022 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) [2022-07-19 18:15:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:46,890 INFO L93 Difference]: Finished difference Result 17851 states and 23937 transitions. [2022-07-19 18:15:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:46,892 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 [2022-07-19 18:15:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:46,911 INFO L225 Difference]: With dead ends: 17851 [2022-07-19 18:15:46,912 INFO L226 Difference]: Without dead ends: 11721 [2022-07-19 18:15:46,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:46,920 INFO L413 NwaCegarLoop]: 2427 mSDtfsCounter, 17725 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:46,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17725 Valid, 3189 Invalid, 3418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 18:15:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11721 states. [2022-07-19 18:15:47,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11721 to 11692. [2022-07-19 18:15:47,670 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) [2022-07-19 18:15:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 15806 transitions. [2022-07-19 18:15:47,686 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 15806 transitions. Word has length 79 [2022-07-19 18:15:47,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:47,686 INFO L495 AbstractCegarLoop]: Abstraction has 11692 states and 15806 transitions. [2022-07-19 18:15:47,686 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) [2022-07-19 18:15:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 15806 transitions. [2022-07-19 18:15:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 18:15:47,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:47,696 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] [2022-07-19 18:15:47,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:15:47,697 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)] === [2022-07-19 18:15:47,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801169, now seen corresponding path program 1 times [2022-07-19 18:15:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:47,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645097506] [2022-07-19 18:15:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:47,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645097506] [2022-07-19 18:15:47,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645097506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:47,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:47,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 18:15:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432202588] [2022-07-19 18:15:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:47,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 18:15:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 18:15:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-19 18:15:47,858 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) [2022-07-19 18:15:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:55,280 INFO L93 Difference]: Finished difference Result 21035 states and 29682 transitions. [2022-07-19 18:15:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 18:15:55,280 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 [2022-07-19 18:15:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:55,306 INFO L225 Difference]: With dead ends: 21035 [2022-07-19 18:15:55,306 INFO L226 Difference]: Without dead ends: 19312 [2022-07-19 18:15:55,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-07-19 18:15:55,314 INFO L413 NwaCegarLoop]: 2519 mSDtfsCounter, 12563 mSDsluCounter, 10716 mSDsCounter, 0 mSdLazyCounter, 14977 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:55,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12563 Valid, 13235 Invalid, 15058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 14977 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-19 18:15:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-07-19 18:15:56,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 11699. [2022-07-19 18:15:56,184 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) [2022-07-19 18:15:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 15813 transitions. [2022-07-19 18:15:56,201 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 15813 transitions. Word has length 80 [2022-07-19 18:15:56,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:56,202 INFO L495 AbstractCegarLoop]: Abstraction has 11699 states and 15813 transitions. [2022-07-19 18:15:56,202 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) [2022-07-19 18:15:56,202 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 15813 transitions. [2022-07-19 18:15:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 18:15:56,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:56,212 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] [2022-07-19 18:15:56,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:15:56,213 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)] === [2022-07-19 18:15:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1294381398, now seen corresponding path program 1 times [2022-07-19 18:15:56,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:56,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310656419] [2022-07-19 18:15:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:56,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:56,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:56,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310656419] [2022-07-19 18:15:56,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310656419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:56,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:56,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:56,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152369199] [2022-07-19 18:15:56,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:56,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:56,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:56,280 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) [2022-07-19 18:15:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:59,434 INFO L93 Difference]: Finished difference Result 23220 states and 31550 transitions. [2022-07-19 18:15:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:59,434 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 [2022-07-19 18:15:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:59,451 INFO L225 Difference]: With dead ends: 23220 [2022-07-19 18:15:59,451 INFO L226 Difference]: Without dead ends: 15844 [2022-07-19 18:15:59,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:59,457 INFO L413 NwaCegarLoop]: 2093 mSDtfsCounter, 15524 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:59,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15524 Valid, 2815 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-19 18:15:59,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2022-07-19 18:16:00,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15824. [2022-07-19 18:16:00,712 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) [2022-07-19 18:16:00,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15824 states to 15824 states and 21420 transitions. [2022-07-19 18:16:00,736 INFO L78 Accepts]: Start accepts. Automaton has 15824 states and 21420 transitions. Word has length 80 [2022-07-19 18:16:00,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:00,736 INFO L495 AbstractCegarLoop]: Abstraction has 15824 states and 21420 transitions. [2022-07-19 18:16:00,736 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) [2022-07-19 18:16:00,736 INFO L276 IsEmpty]: Start isEmpty. Operand 15824 states and 21420 transitions. [2022-07-19 18:16:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:16:00,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:00,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:16:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:16:00,747 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)] === [2022-07-19 18:16:00,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:00,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1633622625, now seen corresponding path program 1 times [2022-07-19 18:16:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:00,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525292264] [2022-07-19 18:16:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:00,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:00,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525292264] [2022-07-19 18:16:00,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525292264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:00,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:00,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:16:00,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483078982] [2022-07-19 18:16:00,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:00,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:16:00,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:00,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:16:00,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:16:00,800 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) [2022-07-19 18:16:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:02,842 INFO L93 Difference]: Finished difference Result 31749 states and 43433 transitions. [2022-07-19 18:16:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:16:02,842 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 [2022-07-19 18:16:02,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:02,870 INFO L225 Difference]: With dead ends: 31749 [2022-07-19 18:16:02,870 INFO L226 Difference]: Without dead ends: 19509 [2022-07-19 18:16:02,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:16:02,884 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 [2022-07-19 18:16:02,884 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] [2022-07-19 18:16:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19509 states. [2022-07-19 18:16:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19509 to 19482. [2022-07-19 18:16:04,595 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) [2022-07-19 18:16:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19482 states to 19482 states and 26374 transitions. [2022-07-19 18:16:04,620 INFO L78 Accepts]: Start accepts. Automaton has 19482 states and 26374 transitions. Word has length 81 [2022-07-19 18:16:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:04,620 INFO L495 AbstractCegarLoop]: Abstraction has 19482 states and 26374 transitions. [2022-07-19 18:16:04,620 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) [2022-07-19 18:16:04,620 INFO L276 IsEmpty]: Start isEmpty. Operand 19482 states and 26374 transitions. [2022-07-19 18:16:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:16:04,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:04,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:16:04,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:16:04,631 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)] === [2022-07-19 18:16:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1819290860, now seen corresponding path program 1 times [2022-07-19 18:16:04,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695015575] [2022-07-19 18:16:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:04,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695015575] [2022-07-19 18:16:04,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695015575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:04,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:04,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:16:04,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097121158] [2022-07-19 18:16:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:04,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:16:04,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:04,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:16:04,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:16:04,921 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) [2022-07-19 18:16:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:16,444 INFO L93 Difference]: Finished difference Result 52425 states and 76675 transitions. [2022-07-19 18:16:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 18:16:16,444 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 [2022-07-19 18:16:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:16,524 INFO L225 Difference]: With dead ends: 52425 [2022-07-19 18:16:16,525 INFO L226 Difference]: Without dead ends: 52421 [2022-07-19 18:16:16,536 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 [2022-07-19 18:16:16,537 INFO L413 NwaCegarLoop]: 4063 mSDtfsCounter, 30610 mSDsluCounter, 26063 mSDsCounter, 0 mSdLazyCounter, 4804 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:16,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30610 Valid, 30126 Invalid, 5481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 4804 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-19 18:16:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52421 states. [2022-07-19 18:16:18,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52421 to 19478. [2022-07-19 18:16:18,944 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) [2022-07-19 18:16:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26370 transitions. [2022-07-19 18:16:18,974 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26370 transitions. Word has length 81 [2022-07-19 18:16:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:18,974 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26370 transitions. [2022-07-19 18:16:18,974 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) [2022-07-19 18:16:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26370 transitions. [2022-07-19 18:16:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:16:18,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:18,985 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] [2022-07-19 18:16:18,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:16:18,986 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)] === [2022-07-19 18:16:18,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash 153905521, now seen corresponding path program 1 times [2022-07-19 18:16:18,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:18,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797877902] [2022-07-19 18:16:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:18,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:19,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:19,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797877902] [2022-07-19 18:16:19,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797877902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:19,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:19,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:16:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051591684] [2022-07-19 18:16:19,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:19,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:16:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:19,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:16:19,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:16:19,090 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) [2022-07-19 18:16:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:25,604 INFO L93 Difference]: Finished difference Result 24786 states and 33764 transitions. [2022-07-19 18:16:25,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:16:25,604 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 [2022-07-19 18:16:25,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:25,635 INFO L225 Difference]: With dead ends: 24786 [2022-07-19 18:16:25,635 INFO L226 Difference]: Without dead ends: 24778 [2022-07-19 18:16:25,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:16:25,642 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 21091 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 8733 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:25,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21091 Valid, 8712 Invalid, 9300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 8733 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-19 18:16:25,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24778 states. [2022-07-19 18:16:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24778 to 19478. [2022-07-19 18:16:27,962 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) [2022-07-19 18:16:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26369 transitions. [2022-07-19 18:16:27,987 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26369 transitions. Word has length 81 [2022-07-19 18:16:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:27,988 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26369 transitions. [2022-07-19 18:16:27,988 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) [2022-07-19 18:16:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26369 transitions. [2022-07-19 18:16:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 18:16:27,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:27,998 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] [2022-07-19 18:16:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:16:27,999 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)] === [2022-07-19 18:16:27,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:27,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1262373862, now seen corresponding path program 1 times [2022-07-19 18:16:27,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:28,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735036204] [2022-07-19 18:16:28,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:28,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:28,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735036204] [2022-07-19 18:16:28,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735036204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:28,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:28,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:16:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397372709] [2022-07-19 18:16:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:16:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:16:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:16:28,163 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) [2022-07-19 18:16:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:39,134 INFO L93 Difference]: Finished difference Result 35516 states and 50334 transitions. [2022-07-19 18:16:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 18:16:39,135 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 [2022-07-19 18:16:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:39,190 INFO L225 Difference]: With dead ends: 35516 [2022-07-19 18:16:39,190 INFO L226 Difference]: Without dead ends: 31010 [2022-07-19 18:16:39,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=693, Unknown=0, NotChecked=0, Total=930 [2022-07-19 18:16:39,206 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 11171 mSDsluCounter, 10904 mSDsCounter, 0 mSdLazyCounter, 12854 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 5.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11171 Valid, 13097 Invalid, 13156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 12854 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-19 18:16:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31010 states. [2022-07-19 18:16:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31010 to 19478. [2022-07-19 18:16:41,744 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) [2022-07-19 18:16:41,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19478 states to 19478 states and 26367 transitions. [2022-07-19 18:16:41,776 INFO L78 Accepts]: Start accepts. Automaton has 19478 states and 26367 transitions. Word has length 82 [2022-07-19 18:16:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:41,776 INFO L495 AbstractCegarLoop]: Abstraction has 19478 states and 26367 transitions. [2022-07-19 18:16:41,777 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) [2022-07-19 18:16:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 19478 states and 26367 transitions. [2022-07-19 18:16:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 18:16:41,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:41,789 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] [2022-07-19 18:16:41,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:16:41,789 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)] === [2022-07-19 18:16:41,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash 143681813, now seen corresponding path program 1 times [2022-07-19 18:16:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:41,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548004423] [2022-07-19 18:16:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:41,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:41,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:41,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548004423] [2022-07-19 18:16:41,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548004423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:41,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:41,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 18:16:41,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234699112] [2022-07-19 18:16:41,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:41,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 18:16:41,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:41,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 18:16:41,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 18:16:41,961 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) [2022-07-19 18:16:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:51,858 INFO L93 Difference]: Finished difference Result 31677 states and 45078 transitions. [2022-07-19 18:16:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:16:51,859 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 [2022-07-19 18:16:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:51,906 INFO L225 Difference]: With dead ends: 31677 [2022-07-19 18:16:51,906 INFO L226 Difference]: Without dead ends: 26922 [2022-07-19 18:16:51,919 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 [2022-07-19 18:16:51,919 INFO L413 NwaCegarLoop]: 2120 mSDtfsCounter, 18181 mSDsluCounter, 10697 mSDsCounter, 0 mSdLazyCounter, 13088 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18181 SdHoareTripleChecker+Valid, 12817 SdHoareTripleChecker+Invalid, 13174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 13088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:51,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18181 Valid, 12817 Invalid, 13174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 13088 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-19 18:16:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26922 states. [2022-07-19 18:16:54,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26922 to 19227. [2022-07-19 18:16:54,470 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) [2022-07-19 18:16:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 26054 transitions. [2022-07-19 18:16:54,506 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 26054 transitions. Word has length 82 [2022-07-19 18:16:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:54,506 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 26054 transitions. [2022-07-19 18:16:54,506 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) [2022-07-19 18:16:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 26054 transitions. [2022-07-19 18:16:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 18:16:54,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:54,518 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] [2022-07-19 18:16:54,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:16:54,518 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)] === [2022-07-19 18:16:54,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash -521520380, now seen corresponding path program 1 times [2022-07-19 18:16:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:54,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141249266] [2022-07-19 18:16:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:54,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:16:54,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:54,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141249266] [2022-07-19 18:16:54,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141249266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:54,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:54,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 18:16:54,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583937828] [2022-07-19 18:16:54,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:54,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 18:16:54,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:54,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 18:16:54,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-19 18:16:54,794 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) [2022-07-19 18:17:06,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:17:06,800 INFO L93 Difference]: Finished difference Result 49676 states and 72229 transitions. [2022-07-19 18:17:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 18:17:06,801 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 [2022-07-19 18:17:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:17:06,869 INFO L225 Difference]: With dead ends: 49676 [2022-07-19 18:17:06,869 INFO L226 Difference]: Without dead ends: 45065 [2022-07-19 18:17:06,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2022-07-19 18:17:06,887 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, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:17:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27069 Valid, 27460 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 3318 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 18:17:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45065 states. [2022-07-19 18:17:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45065 to 19195. [2022-07-19 18:17:10,184 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) [2022-07-19 18:17:10,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19195 states to 19195 states and 26015 transitions. [2022-07-19 18:17:10,216 INFO L78 Accepts]: Start accepts. Automaton has 19195 states and 26015 transitions. Word has length 82 [2022-07-19 18:17:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:17:10,216 INFO L495 AbstractCegarLoop]: Abstraction has 19195 states and 26015 transitions. [2022-07-19 18:17:10,217 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) [2022-07-19 18:17:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19195 states and 26015 transitions. [2022-07-19 18:17:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 18:17:10,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:17:10,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:17:10,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:17:10,229 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)] === [2022-07-19 18:17:10,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:17:10,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1082319899, now seen corresponding path program 1 times [2022-07-19 18:17:10,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:17:10,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705692652] [2022-07-19 18:17:10,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:17:10,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:17:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:17:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:17:10,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:17:10,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705692652] [2022-07-19 18:17:10,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705692652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:17:10,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:17:10,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 18:17:10,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718489507] [2022-07-19 18:17:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:17:10,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 18:17:10,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:17:10,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 18:17:10,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-19 18:17:10,371 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) [2022-07-19 18:17:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:17:23,767 INFO L93 Difference]: Finished difference Result 43366 states and 62167 transitions. [2022-07-19 18:17:23,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:17:23,767 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 [2022-07-19 18:17:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:17:23,830 INFO L225 Difference]: With dead ends: 43366 [2022-07-19 18:17:23,830 INFO L226 Difference]: Without dead ends: 38795 [2022-07-19 18:17:23,846 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 [2022-07-19 18:17:23,847 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 13630 mSDsluCounter, 8287 mSDsCounter, 0 mSdLazyCounter, 10645 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:17:23,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13630 Valid, 10558 Invalid, 10969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 10645 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-19 18:17:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38795 states. [2022-07-19 18:17:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38795 to 19126. [2022-07-19 18:17:27,310 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) [2022-07-19 18:17:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25917 transitions. [2022-07-19 18:17:27,342 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25917 transitions. Word has length 82 [2022-07-19 18:17:27,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:17:27,342 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25917 transitions. [2022-07-19 18:17:27,343 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) [2022-07-19 18:17:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25917 transitions. [2022-07-19 18:17:27,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:17:27,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:17:27,356 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] [2022-07-19 18:17:27,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:17:27,356 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)] === [2022-07-19 18:17:27,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:17:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1453267902, now seen corresponding path program 1 times [2022-07-19 18:17:27,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:17:27,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553112448] [2022-07-19 18:17:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:17:27,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:17:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:17:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:17:27,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:17:27,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553112448] [2022-07-19 18:17:27,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553112448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:17:27,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:17:27,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:17:27,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230518143] [2022-07-19 18:17:27,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:17:27,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:17:27,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:17:27,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:17:27,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:17:27,460 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) [2022-07-19 18:17:41,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:17:41,329 INFO L93 Difference]: Finished difference Result 44973 states and 64933 transitions. [2022-07-19 18:17:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:17:41,330 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 [2022-07-19 18:17:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:17:41,394 INFO L225 Difference]: With dead ends: 44973 [2022-07-19 18:17:41,394 INFO L226 Difference]: Without dead ends: 40451 [2022-07-19 18:17:41,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-19 18:17:41,408 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 18653 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 9162 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:17:41,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18653 Valid, 9378 Invalid, 9620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 9162 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 18:17:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40451 states. [2022-07-19 18:17:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40451 to 19126. [2022-07-19 18:17:45,089 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) [2022-07-19 18:17:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25916 transitions. [2022-07-19 18:17:45,122 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25916 transitions. Word has length 83 [2022-07-19 18:17:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:17:45,122 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25916 transitions. [2022-07-19 18:17:45,122 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) [2022-07-19 18:17:45,122 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25916 transitions. [2022-07-19 18:17:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:17:45,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:17:45,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:17:45,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:17:45,136 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)] === [2022-07-19 18:17:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:17:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1144387461, now seen corresponding path program 1 times [2022-07-19 18:17:45,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:17:45,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845678493] [2022-07-19 18:17:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:17:45,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:17:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:17:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:17:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:17:45,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845678493] [2022-07-19 18:17:45,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845678493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:17:45,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:17:45,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:17:45,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673656763] [2022-07-19 18:17:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:17:45,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:17:45,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:17:45,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:17:45,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:17:45,252 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) [2022-07-19 18:17:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:17:58,537 INFO L93 Difference]: Finished difference Result 40699 states and 57983 transitions. [2022-07-19 18:17:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:17:58,537 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 [2022-07-19 18:17:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:17:58,596 INFO L225 Difference]: With dead ends: 40699 [2022-07-19 18:17:58,596 INFO L226 Difference]: Without dead ends: 36113 [2022-07-19 18:17:58,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:17:58,610 INFO L413 NwaCegarLoop]: 2271 mSDtfsCounter, 21503 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 9567 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:17:58,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21503 Valid, 9298 Invalid, 10061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9567 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-19 18:17:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-07-19 18:18:02,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-07-19 18:18:02,392 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) [2022-07-19 18:18:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25915 transitions. [2022-07-19 18:18:02,425 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25915 transitions. Word has length 83 [2022-07-19 18:18:02,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:02,425 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25915 transitions. [2022-07-19 18:18:02,425 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) [2022-07-19 18:18:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25915 transitions. [2022-07-19 18:18:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:18:02,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:02,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:18:02,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:18:02,438 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)] === [2022-07-19 18:18:02,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -493973130, now seen corresponding path program 1 times [2022-07-19 18:18:02,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:02,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715121613] [2022-07-19 18:18:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:02,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715121613] [2022-07-19 18:18:02,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715121613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:02,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:02,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:02,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285569868] [2022-07-19 18:18:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:02,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:02,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:02,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:02,550 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) [2022-07-19 18:18:15,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:15,918 INFO L93 Difference]: Finished difference Result 40649 states and 57923 transitions. [2022-07-19 18:18:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:18:15,919 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 [2022-07-19 18:18:15,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:15,971 INFO L225 Difference]: With dead ends: 40649 [2022-07-19 18:18:15,971 INFO L226 Difference]: Without dead ends: 36113 [2022-07-19 18:18:15,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:18:15,984 INFO L413 NwaCegarLoop]: 2259 mSDtfsCounter, 21500 mSDsluCounter, 7050 mSDsCounter, 0 mSdLazyCounter, 9563 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:15,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21500 Valid, 9309 Invalid, 10057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 9563 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-19 18:18:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36113 states. [2022-07-19 18:18:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36113 to 19126. [2022-07-19 18:18:19,645 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) [2022-07-19 18:18:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25914 transitions. [2022-07-19 18:18:19,670 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25914 transitions. Word has length 83 [2022-07-19 18:18:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:19,670 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25914 transitions. [2022-07-19 18:18:19,670 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) [2022-07-19 18:18:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25914 transitions. [2022-07-19 18:18:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:18:19,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:19,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:18:19,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:18:19,681 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)] === [2022-07-19 18:18:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash 305854051, now seen corresponding path program 1 times [2022-07-19 18:18:19,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:19,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564529681] [2022-07-19 18:18:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:19,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:19,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564529681] [2022-07-19 18:18:19,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564529681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:19,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:19,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:19,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308875600] [2022-07-19 18:18:19,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:19,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:19,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:19,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:19,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:19,790 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) [2022-07-19 18:18:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:30,951 INFO L93 Difference]: Finished difference Result 35769 states and 50781 transitions. [2022-07-19 18:18:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 18:18:30,952 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 [2022-07-19 18:18:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:30,994 INFO L225 Difference]: With dead ends: 35769 [2022-07-19 18:18:30,994 INFO L226 Difference]: Without dead ends: 31263 [2022-07-19 18:18:31,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-19 18:18:31,003 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 21052 mSDsluCounter, 6983 mSDsCounter, 0 mSdLazyCounter, 9011 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:31,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21052 Valid, 9182 Invalid, 9558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 9011 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-19 18:18:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31263 states. [2022-07-19 18:18:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31263 to 19126. [2022-07-19 18:18:34,649 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) [2022-07-19 18:18:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25913 transitions. [2022-07-19 18:18:34,674 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25913 transitions. Word has length 83 [2022-07-19 18:18:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:34,675 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25913 transitions. [2022-07-19 18:18:34,675 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) [2022-07-19 18:18:34,675 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25913 transitions. [2022-07-19 18:18:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:18:34,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:34,686 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] [2022-07-19 18:18:34,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:18:34,686 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)] === [2022-07-19 18:18:34,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:34,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1768707315, now seen corresponding path program 1 times [2022-07-19 18:18:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:34,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440213661] [2022-07-19 18:18:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:34,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:34,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:34,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440213661] [2022-07-19 18:18:34,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440213661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:34,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:34,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 18:18:34,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160733180] [2022-07-19 18:18:34,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:34,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 18:18:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 18:18:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 18:18:34,815 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) [2022-07-19 18:18:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:18:51,061 INFO L93 Difference]: Finished difference Result 43477 states and 62287 transitions. [2022-07-19 18:18:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 18:18:51,062 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 83 [2022-07-19 18:18:51,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:18:51,105 INFO L225 Difference]: With dead ends: 43477 [2022-07-19 18:18:51,106 INFO L226 Difference]: Without dead ends: 38795 [2022-07-19 18:18:51,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2022-07-19 18:18:51,116 INFO L413 NwaCegarLoop]: 2264 mSDtfsCounter, 21443 mSDsluCounter, 10332 mSDsCounter, 0 mSdLazyCounter, 12405 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21443 SdHoareTripleChecker+Valid, 12596 SdHoareTripleChecker+Invalid, 12852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 12405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:18:51,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21443 Valid, 12596 Invalid, 12852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [447 Valid, 12405 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-19 18:18:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38795 states. [2022-07-19 18:18:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38795 to 19126. [2022-07-19 18:18:55,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3560102569469883) internal successors, (25912), 19125 states have internal predecessors, (25912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:18:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25912 transitions. [2022-07-19 18:18:55,081 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25912 transitions. Word has length 83 [2022-07-19 18:18:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:18:55,081 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25912 transitions. [2022-07-19 18:18:55,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-19 18:18:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25912 transitions. [2022-07-19 18:18:55,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:18:55,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:18:55,091 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] [2022-07-19 18:18:55,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 18:18:55,091 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-19 18:18:55,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:18:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash 774058097, now seen corresponding path program 1 times [2022-07-19 18:18:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:18:55,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484827357] [2022-07-19 18:18:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:18:55,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:18:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:18:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:18:55,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:18:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484827357] [2022-07-19 18:18:55,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484827357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:18:55,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:18:55,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:18:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058684745] [2022-07-19 18:18:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:18:55,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:18:55,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:18:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:18:55,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:18:55,194 INFO L87 Difference]: Start difference. First operand 19126 states and 25912 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) [2022-07-19 18:19:06,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:19:06,488 INFO L93 Difference]: Finished difference Result 29188 states and 40297 transitions. [2022-07-19 18:19:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 18:19:06,489 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 [2022-07-19 18:19:06,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:19:06,521 INFO L225 Difference]: With dead ends: 29188 [2022-07-19 18:19:06,521 INFO L226 Difference]: Without dead ends: 29178 [2022-07-19 18:19:06,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-19 18:19:06,528 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 20882 mSDsluCounter, 6950 mSDsCounter, 0 mSdLazyCounter, 9450 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20882 SdHoareTripleChecker+Valid, 9171 SdHoareTripleChecker+Invalid, 9940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 9450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 18:19:06,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20882 Valid, 9171 Invalid, 9940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 9450 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 18:19:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29178 states. [2022-07-19 18:19:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29178 to 19126. [2022-07-19 18:19:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19126 states, 19109 states have (on average 1.3559579255848029) internal successors, (25911), 19125 states have internal predecessors, (25911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:19:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19126 states to 19126 states and 25911 transitions. [2022-07-19 18:19:10,434 INFO L78 Accepts]: Start accepts. Automaton has 19126 states and 25911 transitions. Word has length 83 [2022-07-19 18:19:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:19:10,434 INFO L495 AbstractCegarLoop]: Abstraction has 19126 states and 25911 transitions. [2022-07-19 18:19:10,434 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) [2022-07-19 18:19:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 19126 states and 25911 transitions. [2022-07-19 18:19:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:19:10,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:19:10,445 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, 1, 1, 1, 1] [2022-07-19 18:19:10,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 18:19:10,446 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-07-19 18:19:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:19:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash 565746600, now seen corresponding path program 1 times [2022-07-19 18:19:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:19:10,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379576256] [2022-07-19 18:19:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:19:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:19:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:19:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:19:10,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:19:10,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379576256] [2022-07-19 18:19:10,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379576256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:19:10,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:19:10,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 18:19:10,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292771265] [2022-07-19 18:19:10,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:19:10,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 18:19:10,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:19:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 18:19:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-19 18:19:10,720 INFO L87 Difference]: Start difference. First operand 19126 states and 25911 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 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)