./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5990b1cf211e12a23ca85722a0e539783495fb8504bce43e0d5e789fe089f178 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 07:18:47,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 07:18:47,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 07:18:47,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 07:18:47,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 07:18:47,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 07:18:47,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 07:18:47,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 07:18:47,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 07:18:47,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 07:18:47,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 07:18:47,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 07:18:47,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 07:18:47,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 07:18:47,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 07:18:47,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 07:18:47,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 07:18:47,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 07:18:47,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 07:18:47,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 07:18:47,087 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 07:18:47,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 07:18:47,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 07:18:47,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 07:18:47,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 07:18:47,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 07:18:47,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 07:18:47,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 07:18:47,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 07:18:47,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 07:18:47,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 07:18:47,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 07:18:47,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 07:18:47,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 07:18:47,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 07:18:47,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 07:18:47,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 07:18:47,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 07:18:47,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 07:18:47,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 07:18:47,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 07:18:47,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 07:18:47,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 07:18:47,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 07:18:47,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 07:18:47,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 07:18:47,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 07:18:47,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 07:18:47,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 07:18:47,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 07:18:47,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 07:18:47,141 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 07:18:47,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 07:18:47,142 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 07:18:47,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 07:18:47,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 07:18:47,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 07:18:47,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 07:18:47,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 07:18:47,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 07:18:47,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 07:18:47,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 07:18:47,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:18:47,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 07:18:47,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 07:18:47,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 07:18:47,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 07:18:47,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 07:18:47,145 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 07:18:47,146 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 07:18:47,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 07:18:47,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5990b1cf211e12a23ca85722a0e539783495fb8504bce43e0d5e789fe089f178 [2022-07-12 07:18:47,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 07:18:47,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 07:18:47,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 07:18:47,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 07:18:47,393 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 07:18:47,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-12 07:18:47,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29e5bd6a/cc3a90e291b7408eaf557c3a202329d1/FLAG5b85d5a09 [2022-07-12 07:18:48,039 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 07:18:48,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-12 07:18:48,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29e5bd6a/cc3a90e291b7408eaf557c3a202329d1/FLAG5b85d5a09 [2022-07-12 07:18:48,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29e5bd6a/cc3a90e291b7408eaf557c3a202329d1 [2022-07-12 07:18:48,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 07:18:48,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 07:18:48,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 07:18:48,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 07:18:48,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 07:18:48,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:18:48" (1/1) ... [2022-07-12 07:18:48,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c35140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:48, skipping insertion in model container [2022-07-12 07:18:48,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 07:18:48" (1/1) ... [2022-07-12 07:18:48,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 07:18:48,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 07:18:48,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2022-07-12 07:18:48,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2022-07-12 07:18:48,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2022-07-12 07:18:48,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2022-07-12 07:18:48,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2022-07-12 07:18:48,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2022-07-12 07:18:48,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2022-07-12 07:18:48,925 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2022-07-12 07:18:48,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2022-07-12 07:18:48,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2022-07-12 07:18:48,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2022-07-12 07:18:48,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:18:48,990 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 07:18:49,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[18815,18828] [2022-07-12 07:18:49,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[25895,25908] [2022-07-12 07:18:49,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[29420,29433] [2022-07-12 07:18:49,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32798,32811] [2022-07-12 07:18:49,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[36856,36869] [2022-07-12 07:18:49,143 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[40310,40323] [2022-07-12 07:18:49,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[43875,43888] [2022-07-12 07:18:49,174 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[47290,47303] [2022-07-12 07:18:49,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[50969,50982] [2022-07-12 07:18:49,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[54551,54564] [2022-07-12 07:18:49,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[58080,58093] [2022-07-12 07:18:49,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 07:18:49,256 INFO L208 MainTranslator]: Completed translation [2022-07-12 07:18:49,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49 WrapperNode [2022-07-12 07:18:49,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 07:18:49,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 07:18:49,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 07:18:49,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 07:18:49,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,364 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2761 [2022-07-12 07:18:49,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 07:18:49,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 07:18:49,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 07:18:49,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 07:18:49,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 07:18:49,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 07:18:49,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 07:18:49,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 07:18:49,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (1/1) ... [2022-07-12 07:18:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 07:18:49,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:18:49,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 07:18:49,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 07:18:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 07:18:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 07:18:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 07:18:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 07:18:49,710 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 07:18:49,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 07:18:50,991 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 07:18:51,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 07:18:51,003 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 07:18:51,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:18:51 BoogieIcfgContainer [2022-07-12 07:18:51,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 07:18:51,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 07:18:51,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 07:18:51,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 07:18:51,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 07:18:48" (1/3) ... [2022-07-12 07:18:51,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3333601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:18:51, skipping insertion in model container [2022-07-12 07:18:51,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 07:18:49" (2/3) ... [2022-07-12 07:18:51,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3333601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 07:18:51, skipping insertion in model container [2022-07-12 07:18:51,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 07:18:51" (3/3) ... [2022-07-12 07:18:51,014 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-07-12 07:18:51,026 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 07:18:51,026 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-07-12 07:18:51,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 07:18:51,083 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@ba6d057, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3340ed94 [2022-07-12 07:18:51,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-12 07:18:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 07:18:51,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:51,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:51,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash 646480323, now seen corresponding path program 1 times [2022-07-12 07:18:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:51,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160021014] [2022-07-12 07:18:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:51,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:51,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160021014] [2022-07-12 07:18:51,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160021014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:51,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:51,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:18:51,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468147122] [2022-07-12 07:18:51,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:51,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:18:51,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:51,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:18:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:18:51,569 INFO L87 Difference]: Start difference. First operand has 570 states, 558 states have (on average 1.7831541218637992) internal successors, (995), 569 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:52,208 INFO L93 Difference]: Finished difference Result 785 states and 1334 transitions. [2022-07-12 07:18:52,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:18:52,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-12 07:18:52,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:52,233 INFO L225 Difference]: With dead ends: 785 [2022-07-12 07:18:52,233 INFO L226 Difference]: Without dead ends: 503 [2022-07-12 07:18:52,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:18:52,240 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 2416 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:52,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2416 Valid, 551 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:18:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-12 07:18:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2022-07-12 07:18:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 492 states have (on average 1.274390243902439) internal successors, (627), 502 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 627 transitions. [2022-07-12 07:18:52,320 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 627 transitions. Word has length 60 [2022-07-12 07:18:52,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:52,321 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 627 transitions. [2022-07-12 07:18:52,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 627 transitions. [2022-07-12 07:18:52,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 07:18:52,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:52,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:52,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 07:18:52,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 221242932, now seen corresponding path program 1 times [2022-07-12 07:18:52,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:52,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104178580] [2022-07-12 07:18:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:52,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:52,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:52,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104178580] [2022-07-12 07:18:52,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104178580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:52,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:52,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:18:52,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459175961] [2022-07-12 07:18:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:52,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:18:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:52,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:18:52,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:18:52,464 INFO L87 Difference]: Start difference. First operand 503 states and 627 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:52,728 INFO L93 Difference]: Finished difference Result 637 states and 796 transitions. [2022-07-12 07:18:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:18:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-12 07:18:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:52,731 INFO L225 Difference]: With dead ends: 637 [2022-07-12 07:18:52,731 INFO L226 Difference]: Without dead ends: 381 [2022-07-12 07:18:52,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:18:52,736 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1366 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:52,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 266 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:18:52,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-12 07:18:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2022-07-12 07:18:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 370 states have (on average 1.2864864864864864) internal successors, (476), 380 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 476 transitions. [2022-07-12 07:18:52,779 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 476 transitions. Word has length 60 [2022-07-12 07:18:52,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:52,779 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 476 transitions. [2022-07-12 07:18:52,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 476 transitions. [2022-07-12 07:18:52,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 07:18:52,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:52,783 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] [2022-07-12 07:18:52,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 07:18:52,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:52,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:52,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2147344789, now seen corresponding path program 1 times [2022-07-12 07:18:52,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:52,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905618651] [2022-07-12 07:18:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:52,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:52,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:52,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905618651] [2022-07-12 07:18:52,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905618651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:52,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:52,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:18:52,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349015713] [2022-07-12 07:18:52,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:52,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:18:52,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:18:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:18:52,900 INFO L87 Difference]: Start difference. First operand 381 states and 476 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:53,116 INFO L93 Difference]: Finished difference Result 539 states and 682 transitions. [2022-07-12 07:18:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:18:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-12 07:18:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:53,119 INFO L225 Difference]: With dead ends: 539 [2022-07-12 07:18:53,119 INFO L226 Difference]: Without dead ends: 335 [2022-07-12 07:18:53,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:18:53,122 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1218 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:53,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 240 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:18:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-07-12 07:18:53,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-07-12 07:18:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 324 states have (on average 1.2993827160493827) internal successors, (421), 334 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 421 transitions. [2022-07-12 07:18:53,146 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 421 transitions. Word has length 60 [2022-07-12 07:18:53,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:53,147 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 421 transitions. [2022-07-12 07:18:53,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 421 transitions. [2022-07-12 07:18:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-12 07:18:53,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:53,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:53,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 07:18:53,150 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash 604643521, now seen corresponding path program 1 times [2022-07-12 07:18:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:53,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313917712] [2022-07-12 07:18:53,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:53,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:53,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:53,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313917712] [2022-07-12 07:18:53,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313917712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:53,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:53,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 07:18:53,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957413113] [2022-07-12 07:18:53,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:53,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 07:18:53,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:53,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 07:18:53,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 07:18:53,245 INFO L87 Difference]: Start difference. First operand 335 states and 421 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:53,408 INFO L93 Difference]: Finished difference Result 433 states and 540 transitions. [2022-07-12 07:18:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 07:18:53,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-07-12 07:18:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:53,410 INFO L225 Difference]: With dead ends: 433 [2022-07-12 07:18:53,411 INFO L226 Difference]: Without dead ends: 261 [2022-07-12 07:18:53,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 07:18:53,412 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 899 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:53,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 209 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:18:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-12 07:18:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-07-12 07:18:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.296) internal successors, (324), 260 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 324 transitions. [2022-07-12 07:18:53,436 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 324 transitions. Word has length 62 [2022-07-12 07:18:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:53,437 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 324 transitions. [2022-07-12 07:18:53,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:53,437 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 324 transitions. [2022-07-12 07:18:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 07:18:53,438 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:53,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:53,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 07:18:53,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:53,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:53,439 INFO L85 PathProgramCache]: Analyzing trace with hash -699288056, now seen corresponding path program 1 times [2022-07-12 07:18:53,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:53,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806953719] [2022-07-12 07:18:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:53,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:53,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:53,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806953719] [2022-07-12 07:18:53,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806953719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:53,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:53,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743309353] [2022-07-12 07:18:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:53,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:53,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:53,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:53,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:53,582 INFO L87 Difference]: Start difference. First operand 261 states and 324 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:54,153 INFO L93 Difference]: Finished difference Result 607 states and 794 transitions. [2022-07-12 07:18:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:54,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-07-12 07:18:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:54,157 INFO L225 Difference]: With dead ends: 607 [2022-07-12 07:18:54,157 INFO L226 Difference]: Without dead ends: 515 [2022-07-12 07:18:54,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:18:54,163 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1630 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:54,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 925 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-07-12 07:18:54,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 261. [2022-07-12 07:18:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.292) internal successors, (323), 260 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 323 transitions. [2022-07-12 07:18:54,211 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 323 transitions. Word has length 64 [2022-07-12 07:18:54,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:54,213 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 323 transitions. [2022-07-12 07:18:54,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:54,213 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 323 transitions. [2022-07-12 07:18:54,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 07:18:54,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:54,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:54,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 07:18:54,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:54,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1796013608, now seen corresponding path program 1 times [2022-07-12 07:18:54,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:54,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361341842] [2022-07-12 07:18:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:54,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361341842] [2022-07-12 07:18:54,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361341842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:54,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:54,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:54,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742510878] [2022-07-12 07:18:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:54,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:54,346 INFO L87 Difference]: Start difference. First operand 261 states and 323 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:54,986 INFO L93 Difference]: Finished difference Result 579 states and 758 transitions. [2022-07-12 07:18:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:54,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-07-12 07:18:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:54,989 INFO L225 Difference]: With dead ends: 579 [2022-07-12 07:18:54,989 INFO L226 Difference]: Without dead ends: 511 [2022-07-12 07:18:54,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:18:54,990 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1916 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:54,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 1070 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:54,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-07-12 07:18:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2022-07-12 07:18:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.288) internal successors, (322), 260 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 322 transitions. [2022-07-12 07:18:55,041 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 322 transitions. Word has length 64 [2022-07-12 07:18:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:55,041 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 322 transitions. [2022-07-12 07:18:55,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 322 transitions. [2022-07-12 07:18:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 07:18:55,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:55,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 07:18:55,043 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1577721816, now seen corresponding path program 1 times [2022-07-12 07:18:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:55,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763251506] [2022-07-12 07:18:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:55,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763251506] [2022-07-12 07:18:55,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763251506] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:55,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:55,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 07:18:55,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058612949] [2022-07-12 07:18:55,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:55,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 07:18:55,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:55,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 07:18:55,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:18:55,151 INFO L87 Difference]: Start difference. First operand 261 states and 322 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:55,571 INFO L93 Difference]: Finished difference Result 516 states and 638 transitions. [2022-07-12 07:18:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 07:18:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-07-12 07:18:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:55,575 INFO L225 Difference]: With dead ends: 516 [2022-07-12 07:18:55,575 INFO L226 Difference]: Without dead ends: 375 [2022-07-12 07:18:55,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-12 07:18:55,576 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1712 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:55,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 673 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:18:55,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-12 07:18:55,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 261. [2022-07-12 07:18:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.284) internal successors, (321), 260 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 321 transitions. [2022-07-12 07:18:55,606 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 321 transitions. Word has length 64 [2022-07-12 07:18:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:55,607 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 321 transitions. [2022-07-12 07:18:55,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:55,608 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 321 transitions. [2022-07-12 07:18:55,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 07:18:55,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:55,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:55,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 07:18:55,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:55,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:55,610 INFO L85 PathProgramCache]: Analyzing trace with hash -295025225, now seen corresponding path program 1 times [2022-07-12 07:18:55,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:55,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426492895] [2022-07-12 07:18:55,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:55,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:55,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:55,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426492895] [2022-07-12 07:18:55,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426492895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:55,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:55,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:55,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478905610] [2022-07-12 07:18:55,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:55,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:55,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:55,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:55,766 INFO L87 Difference]: Start difference. First operand 261 states and 321 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:56,412 INFO L93 Difference]: Finished difference Result 560 states and 727 transitions. [2022-07-12 07:18:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-12 07:18:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:56,416 INFO L225 Difference]: With dead ends: 560 [2022-07-12 07:18:56,416 INFO L226 Difference]: Without dead ends: 503 [2022-07-12 07:18:56,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:18:56,417 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1899 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:56,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 985 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:56,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-12 07:18:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2022-07-12 07:18:56,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.28) internal successors, (320), 260 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 320 transitions. [2022-07-12 07:18:56,447 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 320 transitions. Word has length 65 [2022-07-12 07:18:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:56,447 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 320 transitions. [2022-07-12 07:18:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 320 transitions. [2022-07-12 07:18:56,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:18:56,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:56,448 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] [2022-07-12 07:18:56,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 07:18:56,449 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:56,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash -168692467, now seen corresponding path program 1 times [2022-07-12 07:18:56,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:56,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735142152] [2022-07-12 07:18:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:56,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:56,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735142152] [2022-07-12 07:18:56,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735142152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:56,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:56,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:56,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114383499] [2022-07-12 07:18:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:56,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:56,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:56,553 INFO L87 Difference]: Start difference. First operand 261 states and 320 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:57,142 INFO L93 Difference]: Finished difference Result 530 states and 680 transitions. [2022-07-12 07:18:57,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:18:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:57,145 INFO L225 Difference]: With dead ends: 530 [2022-07-12 07:18:57,145 INFO L226 Difference]: Without dead ends: 511 [2022-07-12 07:18:57,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-12 07:18:57,148 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1848 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:57,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 1103 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-07-12 07:18:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2022-07-12 07:18:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.276) internal successors, (319), 260 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 319 transitions. [2022-07-12 07:18:57,179 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 319 transitions. Word has length 66 [2022-07-12 07:18:57,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:57,180 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 319 transitions. [2022-07-12 07:18:57,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,180 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 319 transitions. [2022-07-12 07:18:57,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:18:57,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:57,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:57,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 07:18:57,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:57,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:57,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1424145869, now seen corresponding path program 1 times [2022-07-12 07:18:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:57,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761753142] [2022-07-12 07:18:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:57,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:57,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761753142] [2022-07-12 07:18:57,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761753142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:57,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:57,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:57,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641700718] [2022-07-12 07:18:57,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:57,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:57,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:57,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:57,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:57,302 INFO L87 Difference]: Start difference. First operand 261 states and 319 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:57,839 INFO L93 Difference]: Finished difference Result 509 states and 648 transitions. [2022-07-12 07:18:57,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:57,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:18:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:57,843 INFO L225 Difference]: With dead ends: 509 [2022-07-12 07:18:57,843 INFO L226 Difference]: Without dead ends: 503 [2022-07-12 07:18:57,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:18:57,845 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1384 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:57,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1061 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:18:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-12 07:18:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2022-07-12 07:18:57,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.272) internal successors, (318), 260 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 318 transitions. [2022-07-12 07:18:57,881 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 318 transitions. Word has length 66 [2022-07-12 07:18:57,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:57,882 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 318 transitions. [2022-07-12 07:18:57,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:57,882 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 318 transitions. [2022-07-12 07:18:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:18:57,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:57,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:57,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 07:18:57,884 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash -155488627, now seen corresponding path program 1 times [2022-07-12 07:18:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:57,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261760885] [2022-07-12 07:18:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:58,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261760885] [2022-07-12 07:18:58,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261760885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:58,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:58,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:58,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527364590] [2022-07-12 07:18:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:58,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:58,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:58,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:58,009 INFO L87 Difference]: Start difference. First operand 261 states and 318 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:58,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:58,603 INFO L93 Difference]: Finished difference Result 613 states and 791 transitions. [2022-07-12 07:18:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:18:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:58,606 INFO L225 Difference]: With dead ends: 613 [2022-07-12 07:18:58,606 INFO L226 Difference]: Without dead ends: 515 [2022-07-12 07:18:58,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:18:58,607 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1445 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:58,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1240 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-07-12 07:18:58,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 261. [2022-07-12 07:18:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.268) internal successors, (317), 260 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 317 transitions. [2022-07-12 07:18:58,641 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 317 transitions. Word has length 66 [2022-07-12 07:18:58,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:58,641 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 317 transitions. [2022-07-12 07:18:58,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:58,641 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 317 transitions. [2022-07-12 07:18:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:18:58,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:58,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:58,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 07:18:58,643 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash -131812051, now seen corresponding path program 1 times [2022-07-12 07:18:58,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:58,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385297789] [2022-07-12 07:18:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:58,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:58,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385297789] [2022-07-12 07:18:58,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385297789] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:58,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:58,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:58,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033603509] [2022-07-12 07:18:58,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:58,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:58,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:58,749 INFO L87 Difference]: Start difference. First operand 261 states and 317 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:18:59,377 INFO L93 Difference]: Finished difference Result 563 states and 726 transitions. [2022-07-12 07:18:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:18:59,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:18:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:18:59,380 INFO L225 Difference]: With dead ends: 563 [2022-07-12 07:18:59,380 INFO L226 Difference]: Without dead ends: 503 [2022-07-12 07:18:59,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:18:59,382 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 1776 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:18:59,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1072 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:18:59,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-12 07:18:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2022-07-12 07:18:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.264) internal successors, (316), 260 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 316 transitions. [2022-07-12 07:18:59,418 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 316 transitions. Word has length 66 [2022-07-12 07:18:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:18:59,418 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 316 transitions. [2022-07-12 07:18:59,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:18:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 316 transitions. [2022-07-12 07:18:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:18:59,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:18:59,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:18:59,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 07:18:59,420 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:18:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:18:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2058619373, now seen corresponding path program 1 times [2022-07-12 07:18:59,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:18:59,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893763392] [2022-07-12 07:18:59,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:18:59,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:18:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:18:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:18:59,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:18:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893763392] [2022-07-12 07:18:59,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893763392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:18:59,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:18:59,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:18:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176514025] [2022-07-12 07:18:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:18:59,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:18:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:18:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:18:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:18:59,542 INFO L87 Difference]: Start difference. First operand 261 states and 316 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:00,174 INFO L93 Difference]: Finished difference Result 584 states and 755 transitions. [2022-07-12 07:19:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:19:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:19:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:00,177 INFO L225 Difference]: With dead ends: 584 [2022-07-12 07:19:00,177 INFO L226 Difference]: Without dead ends: 511 [2022-07-12 07:19:00,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:19:00,179 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 925 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:00,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1297 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:19:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-07-12 07:19:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 261. [2022-07-12 07:19:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.26) internal successors, (315), 260 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 315 transitions. [2022-07-12 07:19:00,214 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 315 transitions. Word has length 66 [2022-07-12 07:19:00,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:00,214 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 315 transitions. [2022-07-12 07:19:00,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 315 transitions. [2022-07-12 07:19:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 07:19:00,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:00,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:00,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 07:19:00,216 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1833305997, now seen corresponding path program 1 times [2022-07-12 07:19:00,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:00,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876419089] [2022-07-12 07:19:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:00,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:00,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876419089] [2022-07-12 07:19:00,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876419089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:00,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:00,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:19:00,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195393143] [2022-07-12 07:19:00,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:00,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:19:00,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:00,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:19:00,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:00,317 INFO L87 Difference]: Start difference. First operand 261 states and 315 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:00,905 INFO L93 Difference]: Finished difference Result 509 states and 644 transitions. [2022-07-12 07:19:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 07:19:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-12 07:19:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:00,909 INFO L225 Difference]: With dead ends: 509 [2022-07-12 07:19:00,909 INFO L226 Difference]: Without dead ends: 503 [2022-07-12 07:19:00,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:19:00,910 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1398 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:00,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 1201 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:19:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-07-12 07:19:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 261. [2022-07-12 07:19:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 250 states have (on average 1.256) internal successors, (314), 260 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 314 transitions. [2022-07-12 07:19:00,946 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 314 transitions. Word has length 66 [2022-07-12 07:19:00,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:00,946 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 314 transitions. [2022-07-12 07:19:00,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:00,947 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 314 transitions. [2022-07-12 07:19:00,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:19:00,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:00,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:00,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 07:19:00,948 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash 817551922, now seen corresponding path program 1 times [2022-07-12 07:19:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366068034] [2022-07-12 07:19:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:01,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:01,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366068034] [2022-07-12 07:19:01,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366068034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:01,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:01,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:19:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336317715] [2022-07-12 07:19:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:01,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:19:01,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:19:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:19:01,280 INFO L87 Difference]: Start difference. First operand 261 states and 314 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:01,992 INFO L93 Difference]: Finished difference Result 473 states and 590 transitions. [2022-07-12 07:19:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 07:19:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:19:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:01,994 INFO L225 Difference]: With dead ends: 473 [2022-07-12 07:19:01,994 INFO L226 Difference]: Without dead ends: 407 [2022-07-12 07:19:01,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:19:01,995 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1237 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:01,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 2042 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 07:19:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-12 07:19:02,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 249. [2022-07-12 07:19:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 239 states have (on average 1.2552301255230125) internal successors, (300), 248 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 300 transitions. [2022-07-12 07:19:02,039 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 300 transitions. Word has length 67 [2022-07-12 07:19:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:02,039 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 300 transitions. [2022-07-12 07:19:02,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 300 transitions. [2022-07-12 07:19:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 07:19:02,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:02,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:02,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 07:19:02,041 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:02,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:02,041 INFO L85 PathProgramCache]: Analyzing trace with hash 167509874, now seen corresponding path program 1 times [2022-07-12 07:19:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580149154] [2022-07-12 07:19:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:02,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:02,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580149154] [2022-07-12 07:19:02,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580149154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:02,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:02,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:19:02,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219749483] [2022-07-12 07:19:02,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:02,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:19:02,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:02,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:19:02,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:19:02,288 INFO L87 Difference]: Start difference. First operand 249 states and 300 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:02,934 INFO L93 Difference]: Finished difference Result 701 states and 909 transitions. [2022-07-12 07:19:02,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 07:19:02,934 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-07-12 07:19:02,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:02,936 INFO L225 Difference]: With dead ends: 701 [2022-07-12 07:19:02,936 INFO L226 Difference]: Without dead ends: 577 [2022-07-12 07:19:02,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:19:02,937 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 2238 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:02,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 1247 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-07-12 07:19:02,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 179. [2022-07-12 07:19:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 173 states have (on average 1.2485549132947977) internal successors, (216), 178 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 216 transitions. [2022-07-12 07:19:02,971 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 216 transitions. Word has length 67 [2022-07-12 07:19:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:02,971 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 216 transitions. [2022-07-12 07:19:02,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 216 transitions. [2022-07-12 07:19:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:19:02,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:02,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:02,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 07:19:02,973 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:02,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1968382194, now seen corresponding path program 1 times [2022-07-12 07:19:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111224126] [2022-07-12 07:19:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:03,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111224126] [2022-07-12 07:19:03,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111224126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:03,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:03,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-07-12 07:19:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826444667] [2022-07-12 07:19:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 07:19:03,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 07:19:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:19:03,640 INFO L87 Difference]: Start difference. First operand 179 states and 216 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:05,711 INFO L93 Difference]: Finished difference Result 582 states and 734 transitions. [2022-07-12 07:19:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-12 07:19:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-12 07:19:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:05,713 INFO L225 Difference]: With dead ends: 582 [2022-07-12 07:19:05,713 INFO L226 Difference]: Without dead ends: 524 [2022-07-12 07:19:05,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=276, Invalid=1284, Unknown=0, NotChecked=0, Total=1560 [2022-07-12 07:19:05,714 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 2221 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 3908 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:05,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 3908 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 07:19:05,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-12 07:19:05,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 196. [2022-07-12 07:19:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 190 states have (on average 1.2578947368421052) internal successors, (239), 195 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 239 transitions. [2022-07-12 07:19:05,772 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 239 transitions. Word has length 68 [2022-07-12 07:19:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:05,772 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 239 transitions. [2022-07-12 07:19:05,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 239 transitions. [2022-07-12 07:19:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 07:19:05,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:05,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:05,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 07:19:05,774 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:05,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1424994738, now seen corresponding path program 1 times [2022-07-12 07:19:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:05,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944730902] [2022-07-12 07:19:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:05,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:06,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:06,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944730902] [2022-07-12 07:19:06,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944730902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:06,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:06,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-07-12 07:19:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213345360] [2022-07-12 07:19:06,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:06,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 07:19:06,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:06,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 07:19:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2022-07-12 07:19:06,238 INFO L87 Difference]: Start difference. First operand 196 states and 239 transitions. Second operand has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:08,259 INFO L93 Difference]: Finished difference Result 623 states and 784 transitions. [2022-07-12 07:19:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 07:19:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-12 07:19:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:08,261 INFO L225 Difference]: With dead ends: 623 [2022-07-12 07:19:08,261 INFO L226 Difference]: Without dead ends: 610 [2022-07-12 07:19:08,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=237, Invalid=1169, Unknown=0, NotChecked=0, Total=1406 [2022-07-12 07:19:08,263 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 1574 mSDsluCounter, 5669 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:08,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 6105 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 07:19:08,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-12 07:19:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 207. [2022-07-12 07:19:08,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.2587064676616915) internal successors, (253), 206 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:08,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 253 transitions. [2022-07-12 07:19:08,318 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 253 transitions. Word has length 68 [2022-07-12 07:19:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:08,318 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 253 transitions. [2022-07-12 07:19:08,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.238095238095238) internal successors, (68), 21 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 253 transitions. [2022-07-12 07:19:08,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 07:19:08,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:08,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:08,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 07:19:08,320 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1394723840, now seen corresponding path program 1 times [2022-07-12 07:19:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636295349] [2022-07-12 07:19:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:08,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:08,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636295349] [2022-07-12 07:19:08,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636295349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:08,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:08,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 07:19:08,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895595303] [2022-07-12 07:19:08,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:08,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 07:19:08,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:08,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 07:19:08,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:19:08,498 INFO L87 Difference]: Start difference. First operand 207 states and 253 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:09,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:09,097 INFO L93 Difference]: Finished difference Result 493 states and 648 transitions. [2022-07-12 07:19:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:19:09,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-12 07:19:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:09,099 INFO L225 Difference]: With dead ends: 493 [2022-07-12 07:19:09,100 INFO L226 Difference]: Without dead ends: 418 [2022-07-12 07:19:09,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-07-12 07:19:09,101 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 927 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:09,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2109 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-07-12 07:19:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 179. [2022-07-12 07:19:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.24) internal successors, (217), 178 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 217 transitions. [2022-07-12 07:19:09,157 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 217 transitions. Word has length 69 [2022-07-12 07:19:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:09,157 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 217 transitions. [2022-07-12 07:19:09,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 217 transitions. [2022-07-12 07:19:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 07:19:09,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:09,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 07:19:09,158 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 308538022, now seen corresponding path program 1 times [2022-07-12 07:19:09,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:09,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687422134] [2022-07-12 07:19:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:09,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687422134] [2022-07-12 07:19:09,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687422134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:09,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:09,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 07:19:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701519393] [2022-07-12 07:19:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:09,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 07:19:09,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 07:19:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 07:19:09,458 INFO L87 Difference]: Start difference. First operand 179 states and 217 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:10,294 INFO L93 Difference]: Finished difference Result 428 states and 541 transitions. [2022-07-12 07:19:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 07:19:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-12 07:19:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:10,296 INFO L225 Difference]: With dead ends: 428 [2022-07-12 07:19:10,296 INFO L226 Difference]: Without dead ends: 424 [2022-07-12 07:19:10,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-12 07:19:10,297 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1197 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:10,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 1510 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:10,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-07-12 07:19:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 174. [2022-07-12 07:19:10,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.239766081871345) internal successors, (212), 173 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2022-07-12 07:19:10,371 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 69 [2022-07-12 07:19:10,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:10,371 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2022-07-12 07:19:10,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,372 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2022-07-12 07:19:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:19:10,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:10,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:10,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 07:19:10,373 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:10,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:10,374 INFO L85 PathProgramCache]: Analyzing trace with hash -957086542, now seen corresponding path program 1 times [2022-07-12 07:19:10,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:10,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388425649] [2022-07-12 07:19:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:10,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:10,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:10,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388425649] [2022-07-12 07:19:10,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388425649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:10,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:10,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:19:10,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050597775] [2022-07-12 07:19:10,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:10,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:19:10,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:19:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:10,461 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:10,852 INFO L93 Difference]: Finished difference Result 332 states and 426 transitions. [2022-07-12 07:19:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:19:10,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-12 07:19:10,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:10,854 INFO L225 Difference]: With dead ends: 332 [2022-07-12 07:19:10,854 INFO L226 Difference]: Without dead ends: 258 [2022-07-12 07:19:10,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-12 07:19:10,855 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 499 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:10,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 604 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:10,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-12 07:19:10,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 174. [2022-07-12 07:19:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.2339181286549707) internal successors, (211), 173 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2022-07-12 07:19:10,928 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 70 [2022-07-12 07:19:10,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:10,928 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2022-07-12 07:19:10,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:10,928 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2022-07-12 07:19:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 07:19:10,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:10,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:10,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 07:19:10,930 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash -776449806, now seen corresponding path program 1 times [2022-07-12 07:19:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:10,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164227618] [2022-07-12 07:19:10,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:10,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:11,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:11,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164227618] [2022-07-12 07:19:11,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164227618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:11,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:11,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 07:19:11,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790143950] [2022-07-12 07:19:11,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:11,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 07:19:11,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:11,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 07:19:11,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:11,033 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:11,393 INFO L93 Difference]: Finished difference Result 275 states and 339 transitions. [2022-07-12 07:19:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 07:19:11,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-12 07:19:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:11,396 INFO L225 Difference]: With dead ends: 275 [2022-07-12 07:19:11,397 INFO L226 Difference]: Without dead ends: 267 [2022-07-12 07:19:11,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-12 07:19:11,398 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 413 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:11,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 739 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:11,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-07-12 07:19:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 174. [2022-07-12 07:19:11,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 171 states have (on average 1.2222222222222223) internal successors, (209), 173 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2022-07-12 07:19:11,476 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 70 [2022-07-12 07:19:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:11,476 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2022-07-12 07:19:11,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2022-07-12 07:19:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 07:19:11,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:11,477 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] [2022-07-12 07:19:11,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 07:19:11,478 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:11,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:11,478 INFO L85 PathProgramCache]: Analyzing trace with hash -918116841, now seen corresponding path program 1 times [2022-07-12 07:19:11,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:11,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890375175] [2022-07-12 07:19:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:11,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:12,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:12,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890375175] [2022-07-12 07:19:12,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890375175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:12,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:12,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-12 07:19:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154058331] [2022-07-12 07:19:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:12,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-12 07:19:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-12 07:19:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:19:12,050 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:14,324 INFO L93 Difference]: Finished difference Result 780 states and 1025 transitions. [2022-07-12 07:19:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-12 07:19:14,324 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-07-12 07:19:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:14,326 INFO L225 Difference]: With dead ends: 780 [2022-07-12 07:19:14,327 INFO L226 Difference]: Without dead ends: 774 [2022-07-12 07:19:14,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=290, Invalid=1350, Unknown=0, NotChecked=0, Total=1640 [2022-07-12 07:19:14,328 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 1914 mSDsluCounter, 5534 mSDsCounter, 0 mSdLazyCounter, 2740 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 6046 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:14,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 6046 Invalid, 2809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2740 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 07:19:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-07-12 07:19:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 187. [2022-07-12 07:19:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 184 states have (on average 1.2228260869565217) internal successors, (225), 186 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2022-07-12 07:19:14,409 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 72 [2022-07-12 07:19:14,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:14,410 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2022-07-12 07:19:14,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2022-07-12 07:19:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:19:14,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:14,411 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] [2022-07-12 07:19:14,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 07:19:14,411 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash 370177890, now seen corresponding path program 1 times [2022-07-12 07:19:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:14,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754270172] [2022-07-12 07:19:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:14,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:14,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754270172] [2022-07-12 07:19:14,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754270172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:14,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:14,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-12 07:19:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255429598] [2022-07-12 07:19:14,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:14,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 07:19:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:14,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 07:19:14,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-07-12 07:19:14,864 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:17,007 INFO L93 Difference]: Finished difference Result 735 states and 980 transitions. [2022-07-12 07:19:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 07:19:17,008 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-07-12 07:19:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:17,009 INFO L225 Difference]: With dead ends: 735 [2022-07-12 07:19:17,010 INFO L226 Difference]: Without dead ends: 729 [2022-07-12 07:19:17,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-07-12 07:19:17,010 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 2385 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:17,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 2911 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 07:19:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-12 07:19:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 188. [2022-07-12 07:19:17,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 185 states have (on average 1.2216216216216216) internal successors, (226), 187 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 226 transitions. [2022-07-12 07:19:17,087 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 226 transitions. Word has length 73 [2022-07-12 07:19:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:17,087 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 226 transitions. [2022-07-12 07:19:17,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5625) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 226 transitions. [2022-07-12 07:19:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:19:17,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:17,087 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] [2022-07-12 07:19:17,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 07:19:17,088 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:17,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:17,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2116165432, now seen corresponding path program 1 times [2022-07-12 07:19:17,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:17,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637429238] [2022-07-12 07:19:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:17,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:17,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:17,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637429238] [2022-07-12 07:19:17,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637429238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:17,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:17,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 07:19:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221815333] [2022-07-12 07:19:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:17,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 07:19:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 07:19:17,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-12 07:19:17,487 INFO L87 Difference]: Start difference. First operand 188 states and 226 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:18,608 INFO L93 Difference]: Finished difference Result 369 states and 460 transitions. [2022-07-12 07:19:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 07:19:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-07-12 07:19:18,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:18,609 INFO L225 Difference]: With dead ends: 369 [2022-07-12 07:19:18,609 INFO L226 Difference]: Without dead ends: 347 [2022-07-12 07:19:18,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 07:19:18,610 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1173 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 2865 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 07:19:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-12 07:19:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 179. [2022-07-12 07:19:18,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 176 states have (on average 1.2215909090909092) internal successors, (215), 178 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 215 transitions. [2022-07-12 07:19:18,676 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 215 transitions. Word has length 73 [2022-07-12 07:19:18,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:18,676 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 215 transitions. [2022-07-12 07:19:18,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 215 transitions. [2022-07-12 07:19:18,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:19:18,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:18,677 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] [2022-07-12 07:19:18,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 07:19:18,677 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:18,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:18,678 INFO L85 PathProgramCache]: Analyzing trace with hash 581450123, now seen corresponding path program 1 times [2022-07-12 07:19:18,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:18,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740582445] [2022-07-12 07:19:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:18,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:18,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:18,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740582445] [2022-07-12 07:19:18,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740582445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:18,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:18,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:19:18,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826318652] [2022-07-12 07:19:18,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:18,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:19:18,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:18,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:19:18,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:19:18,902 INFO L87 Difference]: Start difference. First operand 179 states and 215 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:19,498 INFO L93 Difference]: Finished difference Result 399 states and 516 transitions. [2022-07-12 07:19:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:19:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-07-12 07:19:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:19,500 INFO L225 Difference]: With dead ends: 399 [2022-07-12 07:19:19,500 INFO L226 Difference]: Without dead ends: 379 [2022-07-12 07:19:19,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:19:19,501 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 998 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:19,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1864 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-07-12 07:19:19,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 159. [2022-07-12 07:19:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 157 states have (on average 1.2292993630573248) internal successors, (193), 158 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 193 transitions. [2022-07-12 07:19:19,562 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 193 transitions. Word has length 73 [2022-07-12 07:19:19,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:19,562 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 193 transitions. [2022-07-12 07:19:19,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 193 transitions. [2022-07-12 07:19:19,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 07:19:19,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:19,563 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] [2022-07-12 07:19:19,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-12 07:19:19,564 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:19,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:19,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1832673344, now seen corresponding path program 1 times [2022-07-12 07:19:19,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:19,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794226353] [2022-07-12 07:19:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:19,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794226353] [2022-07-12 07:19:19,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794226353] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:19,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:19,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 07:19:19,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448486924] [2022-07-12 07:19:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:19,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 07:19:19,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:19,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 07:19:19,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-12 07:19:19,777 INFO L87 Difference]: Start difference. First operand 159 states and 193 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:20,470 INFO L93 Difference]: Finished difference Result 359 states and 473 transitions. [2022-07-12 07:19:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 07:19:20,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-07-12 07:19:20,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:20,472 INFO L225 Difference]: With dead ends: 359 [2022-07-12 07:19:20,472 INFO L226 Difference]: Without dead ends: 353 [2022-07-12 07:19:20,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-12 07:19:20,472 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 857 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:20,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1644 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 07:19:20,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-12 07:19:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 132. [2022-07-12 07:19:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.2366412213740459) internal successors, (162), 131 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2022-07-12 07:19:20,526 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 73 [2022-07-12 07:19:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:20,527 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2022-07-12 07:19:20,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2022-07-12 07:19:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 07:19:20,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:20,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:20,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-12 07:19:20,528 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1364481581, now seen corresponding path program 1 times [2022-07-12 07:19:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:20,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255905142] [2022-07-12 07:19:20,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:20,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:20,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255905142] [2022-07-12 07:19:20,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255905142] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:20,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:20,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:20,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259387967] [2022-07-12 07:19:20,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:20,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:20,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:20,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:20,596 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:21,037 INFO L93 Difference]: Finished difference Result 564 states and 794 transitions. [2022-07-12 07:19:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:19:21,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-12 07:19:21,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:21,039 INFO L225 Difference]: With dead ends: 564 [2022-07-12 07:19:21,040 INFO L226 Difference]: Without dead ends: 510 [2022-07-12 07:19:21,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 07:19:21,040 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 896 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:21,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 944 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:19:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-07-12 07:19:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 184. [2022-07-12 07:19:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.3005464480874316) internal successors, (238), 183 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2022-07-12 07:19:21,137 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 238 transitions. Word has length 96 [2022-07-12 07:19:21,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:21,137 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 238 transitions. [2022-07-12 07:19:21,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 238 transitions. [2022-07-12 07:19:21,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:21,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:21,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:21,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-12 07:19:21,139 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1426852022, now seen corresponding path program 1 times [2022-07-12 07:19:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:21,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235375312] [2022-07-12 07:19:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:21,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:21,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235375312] [2022-07-12 07:19:21,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235375312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:21,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:21,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:21,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550174834] [2022-07-12 07:19:21,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:21,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:21,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:21,210 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:21,603 INFO L93 Difference]: Finished difference Result 662 states and 935 transitions. [2022-07-12 07:19:21,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:19:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:21,606 INFO L225 Difference]: With dead ends: 662 [2022-07-12 07:19:21,606 INFO L226 Difference]: Without dead ends: 556 [2022-07-12 07:19:21,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:21,607 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 649 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:21,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 664 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-07-12 07:19:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 288. [2022-07-12 07:19:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.362369337979094) internal successors, (391), 287 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 391 transitions. [2022-07-12 07:19:21,800 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 391 transitions. Word has length 98 [2022-07-12 07:19:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:21,800 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 391 transitions. [2022-07-12 07:19:21,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 391 transitions. [2022-07-12 07:19:21,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:21,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:21,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:21,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-12 07:19:21,802 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash 645902315, now seen corresponding path program 1 times [2022-07-12 07:19:21,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:21,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684898316] [2022-07-12 07:19:21,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:21,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684898316] [2022-07-12 07:19:21,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684898316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:21,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:21,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:21,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478615109] [2022-07-12 07:19:21,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:21,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:21,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:21,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:21,903 INFO L87 Difference]: Start difference. First operand 288 states and 391 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:22,134 INFO L93 Difference]: Finished difference Result 500 states and 700 transitions. [2022-07-12 07:19:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:19:22,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:22,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:22,136 INFO L225 Difference]: With dead ends: 500 [2022-07-12 07:19:22,136 INFO L226 Difference]: Without dead ends: 290 [2022-07-12 07:19:22,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-12 07:19:22,139 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 491 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:22,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 377 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-07-12 07:19:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2022-07-12 07:19:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.3554006968641115) internal successors, (389), 287 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 389 transitions. [2022-07-12 07:19:22,309 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 389 transitions. Word has length 98 [2022-07-12 07:19:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:22,310 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 389 transitions. [2022-07-12 07:19:22,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:22,310 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 389 transitions. [2022-07-12 07:19:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:22,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:22,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:22,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-12 07:19:22,311 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:22,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash 579408803, now seen corresponding path program 1 times [2022-07-12 07:19:22,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:22,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920157449] [2022-07-12 07:19:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:22,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:22,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920157449] [2022-07-12 07:19:22,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920157449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:22,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:22,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:22,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132950499] [2022-07-12 07:19:22,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:22,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:22,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:22,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:22,349 INFO L87 Difference]: Start difference. First operand 288 states and 389 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:22,712 INFO L93 Difference]: Finished difference Result 682 states and 957 transitions. [2022-07-12 07:19:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:22,714 INFO L225 Difference]: With dead ends: 682 [2022-07-12 07:19:22,714 INFO L226 Difference]: Without dead ends: 472 [2022-07-12 07:19:22,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:22,715 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 66 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:22,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 371 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-07-12 07:19:23,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2022-07-12 07:19:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3688699360341152) internal successors, (642), 469 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 642 transitions. [2022-07-12 07:19:23,002 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 642 transitions. Word has length 98 [2022-07-12 07:19:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:23,003 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 642 transitions. [2022-07-12 07:19:23,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 642 transitions. [2022-07-12 07:19:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:23,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:23,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:23,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-12 07:19:23,005 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:23,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash 628880202, now seen corresponding path program 1 times [2022-07-12 07:19:23,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:23,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854340542] [2022-07-12 07:19:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:23,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:23,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854340542] [2022-07-12 07:19:23,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854340542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:23,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:23,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522141281] [2022-07-12 07:19:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:23,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:23,067 INFO L87 Difference]: Start difference. First operand 470 states and 642 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:23,878 INFO L93 Difference]: Finished difference Result 1358 states and 1906 transitions. [2022-07-12 07:19:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:19:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:23,881 INFO L225 Difference]: With dead ends: 1358 [2022-07-12 07:19:23,881 INFO L226 Difference]: Without dead ends: 1161 [2022-07-12 07:19:23,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:23,882 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 616 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:23,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 677 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-07-12 07:19:24,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 763. [2022-07-12 07:19:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.389763779527559) internal successors, (1059), 762 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1059 transitions. [2022-07-12 07:19:24,400 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1059 transitions. Word has length 98 [2022-07-12 07:19:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:24,400 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1059 transitions. [2022-07-12 07:19:24,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1059 transitions. [2022-07-12 07:19:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:24,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:24,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:24,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-12 07:19:24,402 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:24,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1790937782, now seen corresponding path program 1 times [2022-07-12 07:19:24,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:24,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911997600] [2022-07-12 07:19:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:24,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:24,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:24,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911997600] [2022-07-12 07:19:24,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911997600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:24,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:24,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646276179] [2022-07-12 07:19:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:24,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:24,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:24,461 INFO L87 Difference]: Start difference. First operand 763 states and 1059 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:25,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:25,441 INFO L93 Difference]: Finished difference Result 1553 states and 2184 transitions. [2022-07-12 07:19:25,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:19:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:25,445 INFO L225 Difference]: With dead ends: 1553 [2022-07-12 07:19:25,445 INFO L226 Difference]: Without dead ends: 1356 [2022-07-12 07:19:25,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:25,446 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 584 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:25,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 750 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 07:19:25,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2022-07-12 07:19:26,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 958. [2022-07-12 07:19:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.3970741901776385) internal successors, (1337), 957 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1337 transitions. [2022-07-12 07:19:26,063 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1337 transitions. Word has length 98 [2022-07-12 07:19:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:26,064 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1337 transitions. [2022-07-12 07:19:26,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1337 transitions. [2022-07-12 07:19:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 07:19:26,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:26,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:26,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 07:19:26,066 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:26,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:26,066 INFO L85 PathProgramCache]: Analyzing trace with hash -686393014, now seen corresponding path program 1 times [2022-07-12 07:19:26,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:26,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811410747] [2022-07-12 07:19:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:26,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:26,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811410747] [2022-07-12 07:19:26,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811410747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:26,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:26,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721760067] [2022-07-12 07:19:26,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:26,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:26,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:26,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:26,130 INFO L87 Difference]: Start difference. First operand 958 states and 1337 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:27,213 INFO L93 Difference]: Finished difference Result 1748 states and 2462 transitions. [2022-07-12 07:19:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 07:19:27,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-12 07:19:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:27,217 INFO L225 Difference]: With dead ends: 1748 [2022-07-12 07:19:27,217 INFO L226 Difference]: Without dead ends: 1551 [2022-07-12 07:19:27,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:19:27,218 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 642 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:27,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 765 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-07-12 07:19:27,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1153. [2022-07-12 07:19:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.4019097222222223) internal successors, (1615), 1152 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1615 transitions. [2022-07-12 07:19:27,977 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1615 transitions. Word has length 98 [2022-07-12 07:19:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:27,977 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1615 transitions. [2022-07-12 07:19:27,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1615 transitions. [2022-07-12 07:19:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 07:19:27,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:27,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:27,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-12 07:19:27,979 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1897778033, now seen corresponding path program 1 times [2022-07-12 07:19:27,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:27,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602196115] [2022-07-12 07:19:27,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:27,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:28,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:28,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602196115] [2022-07-12 07:19:28,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602196115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:28,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:28,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:28,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131501290] [2022-07-12 07:19:28,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:28,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:28,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:28,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:28,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:28,025 INFO L87 Difference]: Start difference. First operand 1153 states and 1615 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:29,328 INFO L93 Difference]: Finished difference Result 2885 states and 4062 transitions. [2022-07-12 07:19:29,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:29,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-07-12 07:19:29,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:29,333 INFO L225 Difference]: With dead ends: 2885 [2022-07-12 07:19:29,333 INFO L226 Difference]: Without dead ends: 1810 [2022-07-12 07:19:29,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:29,334 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 77 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:29,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 343 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-07-12 07:19:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1720. [2022-07-12 07:19:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.3944153577661431) internal successors, (2397), 1719 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2397 transitions. [2022-07-12 07:19:30,574 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2397 transitions. Word has length 99 [2022-07-12 07:19:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:30,575 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2397 transitions. [2022-07-12 07:19:30,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2397 transitions. [2022-07-12 07:19:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 07:19:30,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:30,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:30,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-12 07:19:30,577 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 642959826, now seen corresponding path program 1 times [2022-07-12 07:19:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:30,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484086463] [2022-07-12 07:19:30,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:30,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:30,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:30,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484086463] [2022-07-12 07:19:30,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484086463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:30,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:30,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:30,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962465083] [2022-07-12 07:19:30,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:30,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:30,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:30,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:30,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:30,624 INFO L87 Difference]: Start difference. First operand 1720 states and 2397 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:33,127 INFO L93 Difference]: Finished difference Result 4872 states and 6794 transitions. [2022-07-12 07:19:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:33,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-07-12 07:19:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:33,136 INFO L225 Difference]: With dead ends: 4872 [2022-07-12 07:19:33,136 INFO L226 Difference]: Without dead ends: 3230 [2022-07-12 07:19:33,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:33,139 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 70 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 344 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-07-12 07:19:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3096. [2022-07-12 07:19:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 1.3831987075928918) internal successors, (4281), 3095 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4281 transitions. [2022-07-12 07:19:35,273 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4281 transitions. Word has length 100 [2022-07-12 07:19:35,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:35,274 INFO L495 AbstractCegarLoop]: Abstraction has 3096 states and 4281 transitions. [2022-07-12 07:19:35,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:35,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4281 transitions. [2022-07-12 07:19:35,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 07:19:35,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:35,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:35,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-12 07:19:35,275 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash -563977445, now seen corresponding path program 1 times [2022-07-12 07:19:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:35,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575284825] [2022-07-12 07:19:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:35,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:35,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:35,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575284825] [2022-07-12 07:19:35,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575284825] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:35,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:35,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:35,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270922264] [2022-07-12 07:19:35,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:35,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:35,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:35,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:35,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:35,319 INFO L87 Difference]: Start difference. First operand 3096 states and 4281 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:39,628 INFO L93 Difference]: Finished difference Result 8868 states and 12215 transitions. [2022-07-12 07:19:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:39,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-07-12 07:19:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:39,646 INFO L225 Difference]: With dead ends: 8868 [2022-07-12 07:19:39,647 INFO L226 Difference]: Without dead ends: 5850 [2022-07-12 07:19:39,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:39,653 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 63 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 344 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2022-07-12 07:19:43,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5584. [2022-07-12 07:19:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5584 states, 5583 states have (on average 1.3648576034390112) internal successors, (7620), 5583 states have internal predecessors, (7620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5584 states to 5584 states and 7620 transitions. [2022-07-12 07:19:43,721 INFO L78 Accepts]: Start accepts. Automaton has 5584 states and 7620 transitions. Word has length 101 [2022-07-12 07:19:43,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:43,721 INFO L495 AbstractCegarLoop]: Abstraction has 5584 states and 7620 transitions. [2022-07-12 07:19:43,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5584 states and 7620 transitions. [2022-07-12 07:19:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 07:19:43,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:43,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:43,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-12 07:19:43,722 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:43,723 INFO L85 PathProgramCache]: Analyzing trace with hash 573353758, now seen corresponding path program 1 times [2022-07-12 07:19:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:43,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790506155] [2022-07-12 07:19:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:43,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:43,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790506155] [2022-07-12 07:19:43,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790506155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:43,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:43,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:19:43,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682105709] [2022-07-12 07:19:43,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:43,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:19:43,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:19:43,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:43,767 INFO L87 Difference]: Start difference. First operand 5584 states and 7620 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:19:51,477 INFO L93 Difference]: Finished difference Result 16068 states and 21770 transitions. [2022-07-12 07:19:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:19:51,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-07-12 07:19:51,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:19:51,494 INFO L225 Difference]: With dead ends: 16068 [2022-07-12 07:19:51,494 INFO L226 Difference]: Without dead ends: 10562 [2022-07-12 07:19:51,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:19:51,502 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 53 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:19:51,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 343 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:19:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-07-12 07:19:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 10032. [2022-07-12 07:19:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10032 states, 10031 states have (on average 1.3398464759246336) internal successors, (13440), 10031 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:59,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 13440 transitions. [2022-07-12 07:19:59,070 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 13440 transitions. Word has length 102 [2022-07-12 07:19:59,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:19:59,071 INFO L495 AbstractCegarLoop]: Abstraction has 10032 states and 13440 transitions. [2022-07-12 07:19:59,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:19:59,071 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 13440 transitions. [2022-07-12 07:19:59,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:19:59,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:19:59,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:19:59,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-12 07:19:59,072 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:19:59,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:19:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1488377255, now seen corresponding path program 1 times [2022-07-12 07:19:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:19:59,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787466279] [2022-07-12 07:19:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:19:59,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:19:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:19:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:19:59,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:19:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787466279] [2022-07-12 07:19:59,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787466279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:19:59,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:19:59,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 07:19:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910719203] [2022-07-12 07:19:59,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:19:59,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 07:19:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:19:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 07:19:59,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 07:19:59,139 INFO L87 Difference]: Start difference. First operand 10032 states and 13440 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:20:11,126 INFO L93 Difference]: Finished difference Result 15538 states and 20747 transitions. [2022-07-12 07:20:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 07:20:11,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-12 07:20:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:20:11,158 INFO L225 Difference]: With dead ends: 15538 [2022-07-12 07:20:11,158 INFO L226 Difference]: Without dead ends: 15536 [2022-07-12 07:20:11,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-12 07:20:11,164 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 257 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:20:11,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 815 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:20:11,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15536 states. [2022-07-12 07:20:19,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15536 to 10272. [2022-07-12 07:20:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10272 states, 10271 states have (on average 1.3225586603057151) internal successors, (13584), 10271 states have internal predecessors, (13584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10272 states to 10272 states and 13584 transitions. [2022-07-12 07:20:19,049 INFO L78 Accepts]: Start accepts. Automaton has 10272 states and 13584 transitions. Word has length 103 [2022-07-12 07:20:19,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:20:19,049 INFO L495 AbstractCegarLoop]: Abstraction has 10272 states and 13584 transitions. [2022-07-12 07:20:19,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 10272 states and 13584 transitions. [2022-07-12 07:20:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 07:20:19,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:20:19,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:20:19,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-12 07:20:19,051 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:20:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:20:19,051 INFO L85 PathProgramCache]: Analyzing trace with hash -108390554, now seen corresponding path program 1 times [2022-07-12 07:20:19,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:20:19,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500046043] [2022-07-12 07:20:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:20:19,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:20:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:20:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:20:19,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:20:19,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500046043] [2022-07-12 07:20:19,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500046043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 07:20:19,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 07:20:19,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 07:20:19,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168914488] [2022-07-12 07:20:19,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 07:20:19,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 07:20:19,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:20:19,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 07:20:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:20:19,094 INFO L87 Difference]: Start difference. First operand 10272 states and 13584 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:27,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 07:20:27,265 INFO L93 Difference]: Finished difference Result 20788 states and 27514 transitions. [2022-07-12 07:20:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 07:20:27,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-12 07:20:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 07:20:27,284 INFO L225 Difference]: With dead ends: 20788 [2022-07-12 07:20:27,284 INFO L226 Difference]: Without dead ends: 10594 [2022-07-12 07:20:27,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 07:20:27,295 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 85 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 07:20:27,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 287 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 07:20:27,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-07-12 07:20:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 10592. [2022-07-12 07:20:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10592 states, 10591 states have (on average 1.3056368614861675) internal successors, (13828), 10591 states have internal predecessors, (13828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10592 states to 10592 states and 13828 transitions. [2022-07-12 07:20:35,619 INFO L78 Accepts]: Start accepts. Automaton has 10592 states and 13828 transitions. Word has length 103 [2022-07-12 07:20:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 07:20:35,619 INFO L495 AbstractCegarLoop]: Abstraction has 10592 states and 13828 transitions. [2022-07-12 07:20:35,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 07:20:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 10592 states and 13828 transitions. [2022-07-12 07:20:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-12 07:20:35,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 07:20:35,623 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 07:20:35,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-12 07:20:35,623 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-12 07:20:35,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 07:20:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1221771837, now seen corresponding path program 1 times [2022-07-12 07:20:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 07:20:35,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442247526] [2022-07-12 07:20:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:20:35,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 07:20:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:20:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:20:35,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 07:20:35,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442247526] [2022-07-12 07:20:35,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442247526] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 07:20:35,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900928085] [2022-07-12 07:20:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 07:20:35,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 07:20:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 07:20:35,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 07:20:35,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 07:20:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 07:20:36,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 07:20:36,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 07:20:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:20:36,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 07:20:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 07:20:38,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900928085] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 07:20:38,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 07:20:38,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-12 07:20:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922423211] [2022-07-12 07:20:38,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 07:20:38,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-12 07:20:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 07:20:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-12 07:20:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-12 07:20:38,041 INFO L87 Difference]: Start difference. First operand 10592 states and 13828 transitions. Second operand has 27 states, 27 states have (on average 11.481481481481481) internal successors, (310), 26 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)