./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+lhb-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+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 18:14:51,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 18:14:51,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 18:14:52,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 18:14:52,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 18:14:52,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 18:14:52,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 18:14:52,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 18:14:52,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 18:14:52,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 18:14:52,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 18:14:52,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 18:14:52,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 18:14:52,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 18:14:52,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 18:14:52,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 18:14:52,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 18:14:52,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 18:14:52,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 18:14:52,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 18:14:52,058 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 18:14:52,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 18:14:52,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 18:14:52,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 18:14:52,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 18:14:52,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 18:14:52,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 18:14:52,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 18:14:52,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 18:14:52,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 18:14:52,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 18:14:52,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 18:14:52,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 18:14:52,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 18:14:52,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 18:14:52,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 18:14:52,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 18:14:52,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 18:14:52,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 18:14:52,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 18:14:52,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 18:14:52,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 18:14:52,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 18:14:52,129 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 18:14:52,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 18:14:52,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 18:14:52,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 18:14:52,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 18:14:52,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 18:14:52,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 18:14:52,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 18:14:52,144 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 18:14:52,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 18:14:52,145 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 18:14:52,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 18:14:52,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 18:14:52,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 18:14:52,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 18:14:52,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 18:14:52,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 18:14:52,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 18:14:52,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 18:14:52,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:14:52,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 18:14:52,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 18:14:52,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 18:14:52,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 18:14:52,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 18:14:52,149 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 18:14:52,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 18:14:52,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 18:14:52,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 [2022-07-19 18:14:52,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 18:14:52,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 18:14:52,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 18:14:52,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 18:14:52,669 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 18:14:52,670 INFO L432 ainManager$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+lhb-reducer.c [2022-07-19 18:14:52,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497cbe5e3/68f615325cd04b7cb82283d8e0b9be94/FLAG2c46ae9d9 [2022-07-19 18:14:53,762 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 18:14:53,763 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+lhb-reducer.c [2022-07-19 18:14:53,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497cbe5e3/68f615325cd04b7cb82283d8e0b9be94/FLAG2c46ae9d9 [2022-07-19 18:14:53,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497cbe5e3/68f615325cd04b7cb82283d8e0b9be94 [2022-07-19 18:14:53,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 18:14:53,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 18:14:53,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 18:14:53,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 18:14:53,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 18:14:53,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:14:53" (1/1) ... [2022-07-19 18:14:53,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7930adfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:53, skipping insertion in model container [2022-07-19 18:14:53,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 06:14:53" (1/1) ... [2022-07-19 18:14:53,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 18:14:54,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 18:14:54,743 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+lhb-reducer.c[13606,13619] [2022-07-19 18:14:54,793 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+lhb-reducer.c[19227,19240] [2022-07-19 18:14:54,817 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+lhb-reducer.c[20416,20429] [2022-07-19 18:14:54,849 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+lhb-reducer.c[22562,22575] [2022-07-19 18:14:54,910 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+lhb-reducer.c[25842,25855] [2022-07-19 18:14:54,955 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+lhb-reducer.c[32130,32143] [2022-07-19 18:14:55,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:14:55,849 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 18:14:55,995 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+lhb-reducer.c[13606,13619] [2022-07-19 18:14:56,019 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+lhb-reducer.c[19227,19240] [2022-07-19 18:14:56,023 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+lhb-reducer.c[20416,20429] [2022-07-19 18:14:56,044 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+lhb-reducer.c[22562,22575] [2022-07-19 18:14:56,051 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-07-19 18:14:56,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-07-19 18:14:56,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 18:14:56,499 INFO L208 MainTranslator]: Completed translation [2022-07-19 18:14:56,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56 WrapperNode [2022-07-19 18:14:56,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 18:14:56,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 18:14:56,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 18:14:56,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 18:14:56,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:56,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:56,760 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8789 [2022-07-19 18:14:56,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 18:14:56,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 18:14:56,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 18:14:56,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 18:14:56,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:56,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:56,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:56,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:57,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:57,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:57,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:57,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 18:14:57,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 18:14:57,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 18:14:57,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 18:14:57,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (1/1) ... [2022-07-19 18:14:57,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 18:14:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 18:14:57,237 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 18:14:57,283 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 18:14:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 18:14:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 18:14:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 18:14:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 18:14:57,855 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 18:14:57,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 18:15:04,276 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 18:15:04,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 18:15:04,315 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 18:15:04,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:15:04 BoogieIcfgContainer [2022-07-19 18:15:04,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 18:15:04,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 18:15:04,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 18:15:04,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 18:15:04,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 06:14:53" (1/3) ... [2022-07-19 18:15:04,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2cb50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:15:04, skipping insertion in model container [2022-07-19 18:15:04,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 06:14:56" (2/3) ... [2022-07-19 18:15:04,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2cb50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 06:15:04, skipping insertion in model container [2022-07-19 18:15:04,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 06:15:04" (3/3) ... [2022-07-19 18:15:04,337 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-19 18:15:04,365 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 18:15:04,366 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-19 18:15:04,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 18:15:04,535 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@246b5cbb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@629c22a6 [2022-07-19 18:15:04,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-19 18:15:04,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:04,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 18:15:04,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:04,632 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] [2022-07-19 18:15:04,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1733440182, now seen corresponding path program 1 times [2022-07-19 18:15:04,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:04,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265203098] [2022-07-19 18:15:04,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:05,458 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 18:15:05,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:05,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265203098] [2022-07-19 18:15:05,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265203098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:05,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:05,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:15:05,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633876251] [2022-07-19 18:15:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:05,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:15:05,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:05,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:15:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:15:05,519 INFO L87 Difference]: Start difference. First operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 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 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:06,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:06,255 INFO L93 Difference]: Finished difference Result 2512 states and 4420 transitions. [2022-07-19 18:15:06,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:15:06,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-07-19 18:15:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:06,298 INFO L225 Difference]: With dead ends: 2512 [2022-07-19 18:15:06,298 INFO L226 Difference]: Without dead ends: 2315 [2022-07-19 18:15:06,320 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 18:15:06,326 INFO L413 NwaCegarLoop]: 3623 mSDtfsCounter, 1878 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:06,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 5631 Invalid, 214 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:15:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2022-07-19 18:15:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2305. [2022-07-19 18:15:06,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2299 states have (on average 1.3057851239669422) internal successors, (3002), 2304 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3002 transitions. [2022-07-19 18:15:06,612 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3002 transitions. Word has length 75 [2022-07-19 18:15:06,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:06,613 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3002 transitions. [2022-07-19 18:15:06,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3002 transitions. [2022-07-19 18:15:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 18:15:06,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:06,622 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] [2022-07-19 18:15:06,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 18:15:06,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:06,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:06,624 INFO L85 PathProgramCache]: Analyzing trace with hash 992628656, now seen corresponding path program 1 times [2022-07-19 18:15:06,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:06,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627513186] [2022-07-19 18:15:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:06,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:06,865 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 18:15:06,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:06,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627513186] [2022-07-19 18:15:06,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627513186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:06,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:06,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:15:06,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427707804] [2022-07-19 18:15:06,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:06,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:15:06,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:15:06,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:15:06,885 INFO L87 Difference]: Start difference. First operand 2305 states and 3002 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:07,166 INFO L93 Difference]: Finished difference Result 3218 states and 4351 transitions. [2022-07-19 18:15:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:15:07,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-07-19 18:15:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:07,189 INFO L225 Difference]: With dead ends: 3218 [2022-07-19 18:15:07,190 INFO L226 Difference]: Without dead ends: 2759 [2022-07-19 18:15:07,192 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 18:15:07,216 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 1183 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:07,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 3768 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:15:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-07-19 18:15:07,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2749. [2022-07-19 18:15:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2743 states have (on average 1.3313889901567626) internal successors, (3652), 2748 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:07,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3652 transitions. [2022-07-19 18:15:07,421 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3652 transitions. Word has length 75 [2022-07-19 18:15:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:07,424 INFO L495 AbstractCegarLoop]: Abstraction has 2749 states and 3652 transitions. [2022-07-19 18:15:07,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3652 transitions. [2022-07-19 18:15:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-19 18:15:07,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:07,452 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] [2022-07-19 18:15:07,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 18:15:07,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:07,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:07,460 INFO L85 PathProgramCache]: Analyzing trace with hash -293589288, now seen corresponding path program 1 times [2022-07-19 18:15:07,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:07,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708593599] [2022-07-19 18:15:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:07,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:07,706 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 18:15:07,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:07,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708593599] [2022-07-19 18:15:07,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708593599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:07,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:07,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114003470] [2022-07-19 18:15:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:07,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:07,712 INFO L87 Difference]: Start difference. First operand 2749 states and 3652 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:10,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:10,058 INFO L93 Difference]: Finished difference Result 5032 states and 6903 transitions. [2022-07-19 18:15:10,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:10,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-07-19 18:15:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:10,070 INFO L225 Difference]: With dead ends: 5032 [2022-07-19 18:15:10,070 INFO L226 Difference]: Without dead ends: 2885 [2022-07-19 18:15:10,078 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 18:15:10,081 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 5801 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5801 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:10,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5801 Valid, 1211 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-19 18:15:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-07-19 18:15:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2875. [2022-07-19 18:15:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2869 states have (on average 1.3851516207737888) internal successors, (3974), 2874 states have internal predecessors, (3974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3974 transitions. [2022-07-19 18:15:10,245 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3974 transitions. Word has length 75 [2022-07-19 18:15:10,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:10,245 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 3974 transitions. [2022-07-19 18:15:10,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3974 transitions. [2022-07-19 18:15:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-19 18:15:10,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:10,300 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] [2022-07-19 18:15:10,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 18:15:10,300 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:10,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:10,301 INFO L85 PathProgramCache]: Analyzing trace with hash -659862233, now seen corresponding path program 1 times [2022-07-19 18:15:10,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:10,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109758114] [2022-07-19 18:15:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:10,816 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 18:15:10,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:10,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109758114] [2022-07-19 18:15:10,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109758114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:10,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:10,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:10,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935007718] [2022-07-19 18:15:10,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:10,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:10,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:10,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:10,818 INFO L87 Difference]: Start difference. First operand 2875 states and 3974 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:12,584 INFO L93 Difference]: Finished difference Result 6085 states and 8642 transitions. [2022-07-19 18:15:12,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-07-19 18:15:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:12,609 INFO L225 Difference]: With dead ends: 6085 [2022-07-19 18:15:12,623 INFO L226 Difference]: Without dead ends: 3652 [2022-07-19 18:15:12,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:12,636 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4617 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:12,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4617 Valid, 990 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 18:15:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-07-19 18:15:12,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3642. [2022-07-19 18:15:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3636 states have (on average 1.4254675467546756) internal successors, (5183), 3641 states have internal predecessors, (5183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5183 transitions. [2022-07-19 18:15:12,996 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5183 transitions. Word has length 76 [2022-07-19 18:15:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:12,997 INFO L495 AbstractCegarLoop]: Abstraction has 3642 states and 5183 transitions. [2022-07-19 18:15:12,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5183 transitions. [2022-07-19 18:15:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:15:13,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:13,003 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 18:15:13,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 18:15:13,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:13,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1653621631, now seen corresponding path program 1 times [2022-07-19 18:15:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:13,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791448345] [2022-07-19 18:15:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:13,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:13,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:13,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791448345] [2022-07-19 18:15:13,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791448345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:13,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:13,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:15:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589370159] [2022-07-19 18:15:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:13,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:15:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:15:13,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:15:13,117 INFO L87 Difference]: Start difference. First operand 3642 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:13,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:13,342 INFO L93 Difference]: Finished difference Result 7380 states and 10651 transitions. [2022-07-19 18:15:13,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:15:13,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:13,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:13,364 INFO L225 Difference]: With dead ends: 7380 [2022-07-19 18:15:13,380 INFO L226 Difference]: Without dead ends: 5163 [2022-07-19 18:15:13,388 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 18:15:13,391 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1094 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:13,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2702 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:15:13,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2022-07-19 18:15:13,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5145. [2022-07-19 18:15:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5139 states have (on average 1.4135045728741) internal successors, (7264), 5144 states have internal predecessors, (7264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 7264 transitions. [2022-07-19 18:15:14,007 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 7264 transitions. Word has length 77 [2022-07-19 18:15:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:14,024 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 7264 transitions. [2022-07-19 18:15:14,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 7264 transitions. [2022-07-19 18:15:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:15:14,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:14,035 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 18:15:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 18:15:14,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1766360593, now seen corresponding path program 1 times [2022-07-19 18:15:14,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379448448] [2022-07-19 18:15:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:14,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:14,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:14,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379448448] [2022-07-19 18:15:14,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379448448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:14,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:14,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:15:14,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302659044] [2022-07-19 18:15:14,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:14,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:15:14,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:14,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:15:14,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:15:14,170 INFO L87 Difference]: Start difference. First operand 5145 states and 7264 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:14,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:14,811 INFO L93 Difference]: Finished difference Result 10416 states and 14895 transitions. [2022-07-19 18:15:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:15:14,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:14,853 INFO L225 Difference]: With dead ends: 10416 [2022-07-19 18:15:14,867 INFO L226 Difference]: Without dead ends: 7235 [2022-07-19 18:15:14,874 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 18:15:14,879 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1112 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:14,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 2710 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:15:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2022-07-19 18:15:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7213. [2022-07-19 18:15:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7207 states have (on average 1.4014152906896074) internal successors, (10100), 7212 states have internal predecessors, (10100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:15,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10100 transitions. [2022-07-19 18:15:15,725 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10100 transitions. Word has length 77 [2022-07-19 18:15:15,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:15,725 INFO L495 AbstractCegarLoop]: Abstraction has 7213 states and 10100 transitions. [2022-07-19 18:15:15,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10100 transitions. [2022-07-19 18:15:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:15:15,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:15,751 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 18:15:15,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 18:15:15,752 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -775572248, now seen corresponding path program 1 times [2022-07-19 18:15:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:15,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796125928] [2022-07-19 18:15:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:15,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:15,865 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 18:15:15,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:15,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796125928] [2022-07-19 18:15:15,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796125928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:15,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:15,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 18:15:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994827347] [2022-07-19 18:15:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:15,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 18:15:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 18:15:15,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 18:15:15,884 INFO L87 Difference]: Start difference. First operand 7213 states and 10100 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:16,879 INFO L93 Difference]: Finished difference Result 16568 states and 23715 transitions. [2022-07-19 18:15:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 18:15:16,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:16,944 INFO L225 Difference]: With dead ends: 16568 [2022-07-19 18:15:16,944 INFO L226 Difference]: Without dead ends: 11139 [2022-07-19 18:15:16,981 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 18:15:16,983 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 716 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:16,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 2330 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 18:15:16,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2022-07-19 18:15:17,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 11129. [2022-07-19 18:15:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 11123 states have (on average 1.4129281668614582) internal successors, (15716), 11128 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 15716 transitions. [2022-07-19 18:15:17,758 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 15716 transitions. Word has length 77 [2022-07-19 18:15:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:17,759 INFO L495 AbstractCegarLoop]: Abstraction has 11129 states and 15716 transitions. [2022-07-19 18:15:17,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 18:15:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 15716 transitions. [2022-07-19 18:15:17,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-19 18:15:17,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:17,783 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 18:15:17,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 18:15:17,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:17,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:17,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1793167006, now seen corresponding path program 1 times [2022-07-19 18:15:17,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:17,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698929522] [2022-07-19 18:15:17,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:17,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:17,957 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 18:15:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:17,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698929522] [2022-07-19 18:15:17,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698929522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:17,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:17,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888750216] [2022-07-19 18:15:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:17,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:17,960 INFO L87 Difference]: Start difference. First operand 11129 states and 15716 transitions. 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 18:15:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:19,890 INFO L93 Difference]: Finished difference Result 24320 states and 34641 transitions. [2022-07-19 18:15:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:19,891 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 18:15:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:19,952 INFO L225 Difference]: With dead ends: 24320 [2022-07-19 18:15:19,952 INFO L226 Difference]: Without dead ends: 14157 [2022-07-19 18:15:19,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:19,992 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3947 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:19,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 861 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-19 18:15:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14157 states. [2022-07-19 18:15:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14157 to 14111. [2022-07-19 18:15:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14111 states, 14105 states have (on average 1.4162353775257002) internal successors, (19976), 14110 states have internal predecessors, (19976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:21,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14111 states to 14111 states and 19976 transitions. [2022-07-19 18:15:21,915 INFO L78 Accepts]: Start accepts. Automaton has 14111 states and 19976 transitions. Word has length 77 [2022-07-19 18:15:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:21,916 INFO L495 AbstractCegarLoop]: Abstraction has 14111 states and 19976 transitions. [2022-07-19 18:15:21,916 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 18:15:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 14111 states and 19976 transitions. [2022-07-19 18:15:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:15:21,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:21,930 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 18:15:21,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 18:15:21,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash 384616632, now seen corresponding path program 1 times [2022-07-19 18:15:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:21,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562776052] [2022-07-19 18:15:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:22,140 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 18:15:22,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:22,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562776052] [2022-07-19 18:15:22,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562776052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:22,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:22,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:15:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128332500] [2022-07-19 18:15:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:22,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 18:15:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 18:15:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:22,144 INFO L87 Difference]: Start difference. First operand 14111 states and 19976 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:27,756 INFO L93 Difference]: Finished difference Result 49980 states and 72255 transitions. [2022-07-19 18:15:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 18:15:27,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:27,874 INFO L225 Difference]: With dead ends: 49980 [2022-07-19 18:15:27,875 INFO L226 Difference]: Without dead ends: 45636 [2022-07-19 18:15:27,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:15:27,907 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 7438 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7438 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:27,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7438 Valid, 1774 Invalid, 1594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 18:15:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45636 states. [2022-07-19 18:15:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45636 to 14159. [2022-07-19 18:15:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14159 states, 14153 states have (on average 1.4159542146541368) internal successors, (20040), 14158 states have internal predecessors, (20040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 20040 transitions. [2022-07-19 18:15:29,715 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 20040 transitions. Word has length 78 [2022-07-19 18:15:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:29,715 INFO L495 AbstractCegarLoop]: Abstraction has 14159 states and 20040 transitions. [2022-07-19 18:15:29,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 20040 transitions. [2022-07-19 18:15:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:15:29,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:29,727 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 18:15:29,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 18:15:29,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:29,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -448054908, now seen corresponding path program 1 times [2022-07-19 18:15:29,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:29,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786190865] [2022-07-19 18:15:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:29,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:29,839 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 18:15:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:29,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786190865] [2022-07-19 18:15:29,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786190865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:29,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:29,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:15:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509234394] [2022-07-19 18:15:29,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:29,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 18:15:29,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 18:15:29,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:29,843 INFO L87 Difference]: Start difference. First operand 14159 states and 20040 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:35,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:35,836 INFO L93 Difference]: Finished difference Result 58023 states and 84035 transitions. [2022-07-19 18:15:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 18:15:35,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:35,956 INFO L225 Difference]: With dead ends: 58023 [2022-07-19 18:15:35,957 INFO L226 Difference]: Without dead ends: 52403 [2022-07-19 18:15:35,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:15:35,983 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 6861 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6861 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:35,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6861 Valid, 1751 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 18:15:36,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52403 states. [2022-07-19 18:15:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52403 to 14339. [2022-07-19 18:15:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 14333 states have (on average 1.4149166259680457) internal successors, (20280), 14338 states have internal predecessors, (20280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20280 transitions. [2022-07-19 18:15:38,069 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20280 transitions. Word has length 78 [2022-07-19 18:15:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:38,069 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20280 transitions. [2022-07-19 18:15:38,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20280 transitions. [2022-07-19 18:15:38,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-19 18:15:38,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:38,080 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 18:15:38,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 18:15:38,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:38,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1302867127, now seen corresponding path program 1 times [2022-07-19 18:15:38,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:38,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668204722] [2022-07-19 18:15:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:38,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:38,160 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 18:15:38,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:38,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668204722] [2022-07-19 18:15:38,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668204722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:38,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:38,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:15:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095054341] [2022-07-19 18:15:38,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:38,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 18:15:38,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:38,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 18:15:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:15:38,163 INFO L87 Difference]: Start difference. First operand 14339 states and 20280 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:43,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:43,901 INFO L93 Difference]: Finished difference Result 52723 states and 76327 transitions. [2022-07-19 18:15:43,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 18:15:43,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:43,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:43,995 INFO L225 Difference]: With dead ends: 52723 [2022-07-19 18:15:43,995 INFO L226 Difference]: Without dead ends: 47389 [2022-07-19 18:15:44,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:15:44,025 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6456 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6456 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:44,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6456 Valid, 1730 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:15:44,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47389 states. [2022-07-19 18:15:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47389 to 14639. [2022-07-19 18:15:45,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14639 states, 14633 states have (on average 1.413517392195722) internal successors, (20684), 14638 states have internal predecessors, (20684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:46,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14639 states to 14639 states and 20684 transitions. [2022-07-19 18:15:46,021 INFO L78 Accepts]: Start accepts. Automaton has 14639 states and 20684 transitions. Word has length 78 [2022-07-19 18:15:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:46,021 INFO L495 AbstractCegarLoop]: Abstraction has 14639 states and 20684 transitions. [2022-07-19 18:15:46,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 18:15:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 14639 states and 20684 transitions. [2022-07-19 18:15:46,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:46,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:46,033 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 18:15:46,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 18:15:46,034 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:46,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:46,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2082723386, now seen corresponding path program 1 times [2022-07-19 18:15:46,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:46,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36426722] [2022-07-19 18:15:46,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:46,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:46,131 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 18:15:46,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:46,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36426722] [2022-07-19 18:15:46,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36426722] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:46,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:46,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:46,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957004344] [2022-07-19 18:15:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:46,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 18:15:46,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 18:15:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:15:46,134 INFO L87 Difference]: Start difference. First operand 14639 states and 20684 transitions. Second operand has 4 states, 4 states have (on average 19.75) 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 18:15:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:48,628 INFO L93 Difference]: Finished difference Result 21931 states and 31485 transitions. [2022-07-19 18:15:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 18:15:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) 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 18:15:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:48,658 INFO L225 Difference]: With dead ends: 21931 [2022-07-19 18:15:48,658 INFO L226 Difference]: Without dead ends: 21929 [2022-07-19 18:15:48,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:15:48,666 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 150 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:48,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3825 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:15:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21929 states. [2022-07-19 18:15:50,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21929 to 14637. [2022-07-19 18:15:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14637 states, 14632 states have (on average 1.411085292509568) internal successors, (20647), 14636 states have internal predecessors, (20647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14637 states to 14637 states and 20647 transitions. [2022-07-19 18:15:50,233 INFO L78 Accepts]: Start accepts. Automaton has 14637 states and 20647 transitions. Word has length 79 [2022-07-19 18:15:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:50,233 INFO L495 AbstractCegarLoop]: Abstraction has 14637 states and 20647 transitions. [2022-07-19 18:15:50,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) 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 18:15:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14637 states and 20647 transitions. [2022-07-19 18:15:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:50,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:50,246 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 18:15:50,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 18:15:50,246 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash -554526117, now seen corresponding path program 1 times [2022-07-19 18:15:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:50,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888098592] [2022-07-19 18:15:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:50,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 18:15:50,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:50,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888098592] [2022-07-19 18:15:50,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888098592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:50,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:50,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:50,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542450025] [2022-07-19 18:15:50,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:50,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 18:15:50,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 18:15:50,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:15:50,327 INFO L87 Difference]: Start difference. First operand 14637 states and 20647 transitions. Second operand has 4 states, 4 states have (on average 19.75) 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 18:15:52,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:52,606 INFO L93 Difference]: Finished difference Result 21929 states and 31448 transitions. [2022-07-19 18:15:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 18:15:52,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) 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 18:15:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:52,628 INFO L225 Difference]: With dead ends: 21929 [2022-07-19 18:15:52,628 INFO L226 Difference]: Without dead ends: 21927 [2022-07-19 18:15:52,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:15:52,631 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 150 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:52,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3819 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:15:52,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21927 states. [2022-07-19 18:15:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21927 to 14635. [2022-07-19 18:15:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 14631 states have (on average 1.4086528603649784) internal successors, (20610), 14634 states have internal predecessors, (20610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 20610 transitions. [2022-07-19 18:15:54,014 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 20610 transitions. Word has length 79 [2022-07-19 18:15:54,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:54,015 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 20610 transitions. [2022-07-19 18:15:54,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) 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 18:15:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 20610 transitions. [2022-07-19 18:15:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:54,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:54,026 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 18:15:54,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 18:15:54,026 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:54,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2114012911, now seen corresponding path program 1 times [2022-07-19 18:15:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:54,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83265800] [2022-07-19 18:15:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:54,096 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 18:15:54,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:54,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83265800] [2022-07-19 18:15:54,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83265800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:54,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:54,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:54,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13139600] [2022-07-19 18:15:54,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:54,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:54,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:54,098 INFO L87 Difference]: Start difference. First operand 14635 states and 20610 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 18:15:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:15:56,633 INFO L93 Difference]: Finished difference Result 32708 states and 46104 transitions. [2022-07-19 18:15:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:15:56,634 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 18:15:56,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:15:56,658 INFO L225 Difference]: With dead ends: 32708 [2022-07-19 18:15:56,658 INFO L226 Difference]: Without dead ends: 18877 [2022-07-19 18:15:56,672 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 18:15:56,673 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3567 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 18:15:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 770 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 18:15:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18877 states. [2022-07-19 18:15:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18877 to 18817. [2022-07-19 18:15:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3977037155158667) internal successors, (26295), 18816 states have internal predecessors, (26295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:15:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26295 transitions. [2022-07-19 18:15:58,758 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26295 transitions. Word has length 79 [2022-07-19 18:15:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:15:58,758 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26295 transitions. [2022-07-19 18:15:58,758 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 18:15:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26295 transitions. [2022-07-19 18:15:58,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-19 18:15:58,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:15:58,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:15:58,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 18:15:58,771 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:15:58,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:15:58,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1892443340, now seen corresponding path program 1 times [2022-07-19 18:15:58,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:15:58,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166021227] [2022-07-19 18:15:58,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:15:58,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:15:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:15:58,852 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 18:15:58,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:15:58,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166021227] [2022-07-19 18:15:58,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166021227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:15:58,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:15:58,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:15:58,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338049799] [2022-07-19 18:15:58,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:15:58,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 18:15:58,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:15:58,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 18:15:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 18:15:58,855 INFO L87 Difference]: Start difference. First operand 18817 states and 26295 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 18:16:02,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:02,193 INFO L93 Difference]: Finished difference Result 43750 states and 61399 transitions. [2022-07-19 18:16:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 18:16:02,193 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 18:16:02,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:02,227 INFO L225 Difference]: With dead ends: 43750 [2022-07-19 18:16:02,228 INFO L226 Difference]: Without dead ends: 25804 [2022-07-19 18:16:02,246 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 18:16:02,246 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3971 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:02,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3971 Valid, 904 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 18:16:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25804 states. [2022-07-19 18:16:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25804 to 18817. [2022-07-19 18:16:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3933450273746877) internal successors, (26213), 18816 states have internal predecessors, (26213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:16:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26213 transitions. [2022-07-19 18:16:04,439 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26213 transitions. Word has length 79 [2022-07-19 18:16:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:04,439 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26213 transitions. [2022-07-19 18:16:04,440 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 18:16:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26213 transitions. [2022-07-19 18:16:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 18:16:04,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:04,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 18:16:04,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 18:16:04,449 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:16:04,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:04,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1137442928, now seen corresponding path program 1 times [2022-07-19 18:16:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:04,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855604112] [2022-07-19 18:16:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:04,522 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 18:16:04,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:04,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855604112] [2022-07-19 18:16:04,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855604112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:04,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:04,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:16:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229079680] [2022-07-19 18:16:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:04,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 18:16:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 18:16:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:16:04,524 INFO L87 Difference]: Start difference. First operand 18817 states and 26213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:14,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:14,624 INFO L93 Difference]: Finished difference Result 67289 states and 95635 transitions. [2022-07-19 18:16:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 18:16:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:14,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:14,709 INFO L225 Difference]: With dead ends: 67289 [2022-07-19 18:16:14,709 INFO L226 Difference]: Without dead ends: 59815 [2022-07-19 18:16:14,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:16:14,729 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 5844 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5844 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:14,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5844 Valid, 1695 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 18:16:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-07-19 18:16:17,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 19324. [2022-07-19 18:16:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19320 states have (on average 1.392287784679089) internal successors, (26899), 19323 states have internal predecessors, (26899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:16:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 26899 transitions. [2022-07-19 18:16:17,605 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 26899 transitions. Word has length 80 [2022-07-19 18:16:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:17,605 INFO L495 AbstractCegarLoop]: Abstraction has 19324 states and 26899 transitions. [2022-07-19 18:16:17,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 26899 transitions. [2022-07-19 18:16:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-19 18:16:17,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:17,614 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 18:16:17,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 18:16:17,615 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:16:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1407167192, now seen corresponding path program 1 times [2022-07-19 18:16:17,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:17,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997335263] [2022-07-19 18:16:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:17,698 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 18:16:17,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:17,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997335263] [2022-07-19 18:16:17,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997335263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:17,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:17,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 18:16:17,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225919967] [2022-07-19 18:16:17,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:17,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 18:16:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:17,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 18:16:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 18:16:17,701 INFO L87 Difference]: Start difference. First operand 19324 states and 26899 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:28,495 INFO L93 Difference]: Finished difference Result 65475 states and 92497 transitions. [2022-07-19 18:16:28,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 18:16:28,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:28,577 INFO L225 Difference]: With dead ends: 65475 [2022-07-19 18:16:28,577 INFO L226 Difference]: Without dead ends: 56333 [2022-07-19 18:16:28,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 18:16:28,595 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 6102 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6102 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:28,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6102 Valid, 1694 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 18:16:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56333 states. [2022-07-19 18:16:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56333 to 19408. [2022-07-19 18:16:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 19404 states have (on average 1.3918264275407133) internal successors, (27007), 19407 states have internal predecessors, (27007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:16:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 27007 transitions. [2022-07-19 18:16:33,157 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 27007 transitions. Word has length 80 [2022-07-19 18:16:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:33,158 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 27007 transitions. [2022-07-19 18:16:33,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 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 18:16:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 27007 transitions. [2022-07-19 18:16:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:16:33,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:33,170 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 18:16:33,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 18:16:33,171 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:16:33,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1477869642, now seen corresponding path program 1 times [2022-07-19 18:16:33,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:33,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178397612] [2022-07-19 18:16:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:33,285 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 18:16:33,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:33,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178397612] [2022-07-19 18:16:33,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178397612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:33,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:33,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:16:33,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047653478] [2022-07-19 18:16:33,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:33,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 18:16:33,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:33,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 18:16:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:16:33,288 INFO L87 Difference]: Start difference. First operand 19408 states and 27007 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:40,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:40,628 INFO L93 Difference]: Finished difference Result 30264 states and 42857 transitions. [2022-07-19 18:16:40,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 18:16:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:40,692 INFO L225 Difference]: With dead ends: 30264 [2022-07-19 18:16:40,692 INFO L226 Difference]: Without dead ends: 30262 [2022-07-19 18:16:40,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:16:40,708 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 148 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:40,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3656 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:16:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2022-07-19 18:16:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 19406. [2022-07-19 18:16:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19403 states have (on average 1.3890635468741948) internal successors, (26952), 19405 states have internal predecessors, (26952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:16:45,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 26952 transitions. [2022-07-19 18:16:45,758 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 26952 transitions. Word has length 81 [2022-07-19 18:16:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:45,760 INFO L495 AbstractCegarLoop]: Abstraction has 19406 states and 26952 transitions. [2022-07-19 18:16:45,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 26952 transitions. [2022-07-19 18:16:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 18:16:45,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:45,773 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 18:16:45,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 18:16:45,774 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:16:45,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash -918459322, now seen corresponding path program 1 times [2022-07-19 18:16:45,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:45,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103028226] [2022-07-19 18:16:45,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:45,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:45,843 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 18:16:45,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:45,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103028226] [2022-07-19 18:16:45,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103028226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:45,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:45,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 18:16:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225864353] [2022-07-19 18:16:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:45,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 18:16:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 18:16:45,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:16:45,846 INFO L87 Difference]: Start difference. First operand 19406 states and 26952 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:54,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 18:16:54,018 INFO L93 Difference]: Finished difference Result 30262 states and 42802 transitions. [2022-07-19 18:16:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 18:16:54,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 18:16:54,080 INFO L225 Difference]: With dead ends: 30262 [2022-07-19 18:16:54,081 INFO L226 Difference]: Without dead ends: 30260 [2022-07-19 18:16:54,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 18:16:54,099 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 148 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 18:16:54,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3650 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 18:16:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30260 states. [2022-07-19 18:16:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30260 to 19404. [2022-07-19 18:16:59,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.386300381403979) internal successors, (26897), 19403 states have internal predecessors, (26897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 18:16:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26897 transitions. [2022-07-19 18:16:59,236 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26897 transitions. Word has length 81 [2022-07-19 18:16:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 18:16:59,236 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26897 transitions. [2022-07-19 18:16:59,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 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 18:16:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26897 transitions. [2022-07-19 18:16:59,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-19 18:16:59,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 18:16:59,268 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 18:16:59,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 18:16:59,270 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-07-19 18:16:59,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 18:16:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash 433406996, now seen corresponding path program 1 times [2022-07-19 18:16:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 18:16:59,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702923093] [2022-07-19 18:16:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 18:16:59,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 18:16:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 18:16:59,505 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 18:16:59,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 18:16:59,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702923093] [2022-07-19 18:16:59,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702923093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 18:16:59,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 18:16:59,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 18:16:59,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946493987] [2022-07-19 18:16:59,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 18:16:59,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 18:16:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 18:16:59,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 18:16:59,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 18:16:59,508 INFO L87 Difference]: Start difference. First operand 19404 states and 26897 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)