./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+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38533fb2932c589b42c93c264dc8e5e297bb0dbb9a49080a666466aefcec5174 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 01:29:56,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 01:29:56,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 01:29:56,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 01:29:56,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 01:29:56,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 01:29:56,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 01:29:56,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 01:29:56,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 01:29:56,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 01:29:56,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 01:29:56,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 01:29:56,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 01:29:56,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 01:29:56,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 01:29:56,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 01:29:56,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 01:29:56,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 01:29:56,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 01:29:56,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 01:29:56,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 01:29:56,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 01:29:56,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 01:29:56,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 01:29:56,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 01:29:56,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 01:29:56,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 01:29:56,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 01:29:56,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 01:29:56,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 01:29:56,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 01:29:56,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 01:29:56,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 01:29:56,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 01:29:56,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 01:29:56,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 01:29:56,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 01:29:56,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 01:29:56,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 01:29:56,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 01:29:56,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 01:29:56,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 01:29:56,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 01:29:56,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 01:29:56,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 01:29:56,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 01:29:56,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 01:29:56,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 01:29:56,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 01:29:56,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 01:29:56,215 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 01:29:56,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 01:29:56,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 01:29:56,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 01:29:56,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 01:29:56,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 01:29:56,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 01:29:56,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 01:29:56,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 01:29:56,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:29:56,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 01:29:56,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 01:29:56,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38533fb2932c589b42c93c264dc8e5e297bb0dbb9a49080a666466aefcec5174 [2021-12-28 01:29:56,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 01:29:56,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 01:29:56,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 01:29:56,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 01:29:56,521 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 01:29:56,522 INFO L432 ainManager$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+lhb-reducer.c [2021-12-28 01:29:56,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cdf9821/b16a9cdc1e0a4b00bb6a29bc24ac1ade/FLAGf7b4afb2b [2021-12-28 01:29:57,034 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 01:29:57,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2021-12-28 01:29:57,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cdf9821/b16a9cdc1e0a4b00bb6a29bc24ac1ade/FLAGf7b4afb2b [2021-12-28 01:29:57,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cdf9821/b16a9cdc1e0a4b00bb6a29bc24ac1ade [2021-12-28 01:29:57,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 01:29:57,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 01:29:57,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 01:29:57,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 01:29:57,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 01:29:57,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:29:57" (1/1) ... [2021-12-28 01:29:57,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385840c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:57, skipping insertion in model container [2021-12-28 01:29:57,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 01:29:57" (1/1) ... [2021-12-28 01:29:57,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 01:29:57,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 01:29:57,630 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+lhb-reducer.c[9419,9432] [2021-12-28 01:29:57,659 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+lhb-reducer.c[12891,12904] [2021-12-28 01:29:57,663 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+lhb-reducer.c[14047,14060] [2021-12-28 01:29:57,667 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+lhb-reducer.c[14703,14716] [2021-12-28 01:29:57,689 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+lhb-reducer.c[16224,16237] [2021-12-28 01:29:57,693 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+lhb-reducer.c[16880,16893] [2021-12-28 01:29:57,698 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+lhb-reducer.c[17864,17877] [2021-12-28 01:29:57,730 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+lhb-reducer.c[20202,20215] [2021-12-28 01:29:57,734 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+lhb-reducer.c[20861,20874] [2021-12-28 01:29:57,741 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+lhb-reducer.c[21885,21898] [2021-12-28 01:29:57,747 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+lhb-reducer.c[23760,23773] [2021-12-28 01:29:57,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:29:57,854 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 01:29:57,891 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+lhb-reducer.c[9419,9432] [2021-12-28 01:29:57,908 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+lhb-reducer.c[12891,12904] [2021-12-28 01:29:57,913 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+lhb-reducer.c[14047,14060] [2021-12-28 01:29:57,916 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+lhb-reducer.c[14703,14716] [2021-12-28 01:29:57,922 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+lhb-reducer.c[16224,16237] [2021-12-28 01:29:57,926 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+lhb-reducer.c[16880,16893] [2021-12-28 01:29:57,935 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+lhb-reducer.c[17864,17877] [2021-12-28 01:29:57,945 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+lhb-reducer.c[20202,20215] [2021-12-28 01:29:57,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20861,20874] [2021-12-28 01:29:57,960 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+lhb-reducer.c[21885,21898] [2021-12-28 01:29:57,975 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+lhb-reducer.c[23760,23773] [2021-12-28 01:29:58,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 01:29:58,044 INFO L208 MainTranslator]: Completed translation [2021-12-28 01:29:58,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58 WrapperNode [2021-12-28 01:29:58,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 01:29:58,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 01:29:58,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 01:29:58,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 01:29:58,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,140 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1868 [2021-12-28 01:29:58,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 01:29:58,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 01:29:58,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 01:29:58,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 01:29:58,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 01:29:58,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 01:29:58,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 01:29:58,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 01:29:58,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (1/1) ... [2021-12-28 01:29:58,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 01:29:58,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 01:29:58,274 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) [2021-12-28 01:29:58,276 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 [2021-12-28 01:29:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 01:29:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 01:29:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 01:29:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 01:29:58,501 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 01:29:58,510 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 01:29:59,542 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 01:29:59,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 01:29:59,550 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 01:29:59,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:29:59 BoogieIcfgContainer [2021-12-28 01:29:59,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 01:29:59,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 01:29:59,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 01:29:59,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 01:29:59,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 01:29:57" (1/3) ... [2021-12-28 01:29:59,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a6ce5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:29:59, skipping insertion in model container [2021-12-28 01:29:59,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 01:29:58" (2/3) ... [2021-12-28 01:29:59,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a6ce5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 01:29:59, skipping insertion in model container [2021-12-28 01:29:59,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 01:29:59" (3/3) ... [2021-12-28 01:29:59,557 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2021-12-28 01:29:59,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 01:29:59,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-12-28 01:29:59,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 01:29:59,612 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 01:29:59,612 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-12-28 01:29:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:29:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-28 01:29:59,635 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:29:59,635 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:29:59,636 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:29:59,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:29:59,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1374718599, now seen corresponding path program 1 times [2021-12-28 01:29:59,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:29:59,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935126755] [2021-12-28 01:29:59,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:29:59,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:29:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:29:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:29:59,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:29:59,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935126755] [2021-12-28 01:29:59,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935126755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:29:59,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:29:59,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:29:59,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950316444] [2021-12-28 01:29:59,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:29:59,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:29:59,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:29:59,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:29:59,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:29:59,923 INFO L87 Difference]: Start difference. First operand has 358 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 357 states have internal predecessors, (636), 0 states have call successors, (0), 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 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:00,241 INFO L93 Difference]: Finished difference Result 570 states and 974 transitions. [2021-12-28 01:30:00,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:30:00,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-12-28 01:30:00,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:00,252 INFO L225 Difference]: With dead ends: 570 [2021-12-28 01:30:00,253 INFO L226 Difference]: Without dead ends: 294 [2021-12-28 01:30:00,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-28 01:30:00,258 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1455 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:00,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 363 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-12-28 01:30:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-12-28 01:30:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 283 states have (on average 1.2968197879858658) internal successors, (367), 293 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 367 transitions. [2021-12-28 01:30:00,306 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 367 transitions. Word has length 59 [2021-12-28 01:30:00,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:00,307 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 367 transitions. [2021-12-28 01:30:00,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 367 transitions. [2021-12-28 01:30:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-28 01:30:00,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:00,309 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:00,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 01:30:00,310 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:00,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2133391140, now seen corresponding path program 1 times [2021-12-28 01:30:00,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:00,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534748724] [2021-12-28 01:30:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:00,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:00,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:00,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534748724] [2021-12-28 01:30:00,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534748724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:00,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:00,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:30:00,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611728940] [2021-12-28 01:30:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:00,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:30:00,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:30:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:30:00,408 INFO L87 Difference]: Start difference. First operand 294 states and 367 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) [2021-12-28 01:30:00,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:00,587 INFO L93 Difference]: Finished difference Result 497 states and 636 transitions. [2021-12-28 01:30:00,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:30:00,589 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 [2021-12-28 01:30:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:00,592 INFO L225 Difference]: With dead ends: 497 [2021-12-28 01:30:00,593 INFO L226 Difference]: Without dead ends: 274 [2021-12-28 01:30:00,595 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:00,597 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 932 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:00,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 210 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:00,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-12-28 01:30:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-12-28 01:30:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 263 states have (on average 1.3003802281368821) internal successors, (342), 273 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2021-12-28 01:30:00,636 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 60 [2021-12-28 01:30:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:00,636 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2021-12-28 01:30:00,637 INFO L471 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) [2021-12-28 01:30:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2021-12-28 01:30:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-28 01:30:00,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:00,642 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:00,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 01:30:00,643 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:00,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:00,643 INFO L85 PathProgramCache]: Analyzing trace with hash 626465560, now seen corresponding path program 1 times [2021-12-28 01:30:00,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:00,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040746550] [2021-12-28 01:30:00,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:00,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:00,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:00,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040746550] [2021-12-28 01:30:00,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040746550] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:00,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:00,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:30:00,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364812450] [2021-12-28 01:30:00,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:00,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:30:00,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:00,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:30:00,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:30:00,746 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:00,908 INFO L93 Difference]: Finished difference Result 477 states and 610 transitions. [2021-12-28 01:30:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:30:00,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-12-28 01:30:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:00,911 INFO L225 Difference]: With dead ends: 477 [2021-12-28 01:30:00,911 INFO L226 Difference]: Without dead ends: 255 [2021-12-28 01:30:00,912 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:00,914 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 904 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:00,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [904 Valid, 199 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:00,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-12-28 01:30:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-12-28 01:30:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 244 states have (on average 1.3114754098360655) internal successors, (320), 254 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) [2021-12-28 01:30:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 320 transitions. [2021-12-28 01:30:00,931 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 320 transitions. Word has length 61 [2021-12-28 01:30:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:00,933 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 320 transitions. [2021-12-28 01:30:00,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 320 transitions. [2021-12-28 01:30:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-28 01:30:00,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:00,936 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:00,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 01:30:00,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash 55190193, now seen corresponding path program 1 times [2021-12-28 01:30:00,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:00,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162704632] [2021-12-28 01:30:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:00,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:01,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:01,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162704632] [2021-12-28 01:30:01,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162704632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:01,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:01,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 01:30:01,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239241160] [2021-12-28 01:30:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:01,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 01:30:01,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 01:30:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 01:30:01,022 INFO L87 Difference]: Start difference. First operand 255 states and 320 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) [2021-12-28 01:30:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:01,159 INFO L93 Difference]: Finished difference Result 458 states and 587 transitions. [2021-12-28 01:30:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 01:30:01,160 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 [2021-12-28 01:30:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:01,161 INFO L225 Difference]: With dead ends: 458 [2021-12-28 01:30:01,161 INFO L226 Difference]: Without dead ends: 247 [2021-12-28 01:30:01,162 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:01,164 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 857 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 195 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 [2021-12-28 01:30:01,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 195 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-12-28 01:30:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2021-12-28 01:30:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.3135593220338984) internal successors, (310), 246 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) [2021-12-28 01:30:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 310 transitions. [2021-12-28 01:30:01,176 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 310 transitions. Word has length 62 [2021-12-28 01:30:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:01,176 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 310 transitions. [2021-12-28 01:30:01,177 INFO L471 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) [2021-12-28 01:30:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 310 transitions. [2021-12-28 01:30:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-28 01:30:01,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:01,178 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:01,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 01:30:01,179 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1176799625, now seen corresponding path program 1 times [2021-12-28 01:30:01,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:01,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718400065] [2021-12-28 01:30:01,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:01,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:01,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718400065] [2021-12-28 01:30:01,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718400065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:01,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:01,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 01:30:01,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294028183] [2021-12-28 01:30:01,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:01,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 01:30:01,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 01:30:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-28 01:30:01,383 INFO L87 Difference]: Start difference. First operand 247 states and 310 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:02,112 INFO L93 Difference]: Finished difference Result 562 states and 736 transitions. [2021-12-28 01:30:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-28 01:30:02,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-28 01:30:02,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:02,114 INFO L225 Difference]: With dead ends: 562 [2021-12-28 01:30:02,114 INFO L226 Difference]: Without dead ends: 503 [2021-12-28 01:30:02,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-28 01:30:02,115 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 1485 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:02,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 1445 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 01:30:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-12-28 01:30:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 254. [2021-12-28 01:30:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.316872427983539) internal successors, (320), 253 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) [2021-12-28 01:30:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 320 transitions. [2021-12-28 01:30:02,139 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 320 transitions. Word has length 63 [2021-12-28 01:30:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:02,139 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 320 transitions. [2021-12-28 01:30:02,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 320 transitions. [2021-12-28 01:30:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-28 01:30:02,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:02,140 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:02,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 01:30:02,141 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:02,141 INFO L85 PathProgramCache]: Analyzing trace with hash 735397477, now seen corresponding path program 1 times [2021-12-28 01:30:02,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:02,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293125166] [2021-12-28 01:30:02,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:02,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:02,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:02,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293125166] [2021-12-28 01:30:02,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293125166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:02,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:02,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 01:30:02,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559166241] [2021-12-28 01:30:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:02,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 01:30:02,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 01:30:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-28 01:30:02,262 INFO L87 Difference]: Start difference. First operand 254 states and 320 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:02,889 INFO L93 Difference]: Finished difference Result 605 states and 792 transitions. [2021-12-28 01:30:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 01:30:02,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-28 01:30:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:02,891 INFO L225 Difference]: With dead ends: 605 [2021-12-28 01:30:02,891 INFO L226 Difference]: Without dead ends: 534 [2021-12-28 01:30:02,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2021-12-28 01:30:02,893 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 1842 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:02,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 1486 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 01:30:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-28 01:30:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 254. [2021-12-28 01:30:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 253 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) [2021-12-28 01:30:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 319 transitions. [2021-12-28 01:30:02,914 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 319 transitions. Word has length 63 [2021-12-28 01:30:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:02,914 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 319 transitions. [2021-12-28 01:30:02,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:02,914 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 319 transitions. [2021-12-28 01:30:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-28 01:30:02,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:02,915 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:02,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 01:30:02,915 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1585644853, now seen corresponding path program 1 times [2021-12-28 01:30:02,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:02,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070026346] [2021-12-28 01:30:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:02,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:03,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:03,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070026346] [2021-12-28 01:30:03,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070026346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:03,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:03,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:03,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078008975] [2021-12-28 01:30:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:03,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:03,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:03,005 INFO L87 Difference]: Start difference. First operand 254 states and 319 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:03,460 INFO L93 Difference]: Finished difference Result 562 states and 744 transitions. [2021-12-28 01:30:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:03,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-28 01:30:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:03,463 INFO L225 Difference]: With dead ends: 562 [2021-12-28 01:30:03,463 INFO L226 Difference]: Without dead ends: 496 [2021-12-28 01:30:03,463 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:03,464 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1671 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:03,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1671 Valid, 904 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2021-12-28 01:30:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 254. [2021-12-28 01:30:03,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.308641975308642) internal successors, (318), 253 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) [2021-12-28 01:30:03,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 318 transitions. [2021-12-28 01:30:03,478 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 318 transitions. Word has length 63 [2021-12-28 01:30:03,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:03,478 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 318 transitions. [2021-12-28 01:30:03,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 318 transitions. [2021-12-28 01:30:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-28 01:30:03,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:03,479 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:03,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 01:30:03,480 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash 202563885, now seen corresponding path program 1 times [2021-12-28 01:30:03,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:03,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895780910] [2021-12-28 01:30:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:03,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:03,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:03,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895780910] [2021-12-28 01:30:03,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895780910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:03,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:03,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 01:30:03,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878231006] [2021-12-28 01:30:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:03,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 01:30:03,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:03,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 01:30:03,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 01:30:03,554 INFO L87 Difference]: Start difference. First operand 254 states and 318 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:03,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:03,890 INFO L93 Difference]: Finished difference Result 493 states and 618 transitions. [2021-12-28 01:30:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 01:30:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-28 01:30:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:03,892 INFO L225 Difference]: With dead ends: 493 [2021-12-28 01:30:03,892 INFO L226 Difference]: Without dead ends: 360 [2021-12-28 01:30:03,892 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:03,893 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1620 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:03,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 629 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-28 01:30:03,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 254. [2021-12-28 01:30:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.3045267489711934) internal successors, (317), 253 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) [2021-12-28 01:30:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 317 transitions. [2021-12-28 01:30:03,908 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 317 transitions. Word has length 63 [2021-12-28 01:30:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:03,908 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 317 transitions. [2021-12-28 01:30:03,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 317 transitions. [2021-12-28 01:30:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:03,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:03,909 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:03,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 01:30:03,909 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:03,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1108427284, now seen corresponding path program 1 times [2021-12-28 01:30:03,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:03,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528237414] [2021-12-28 01:30:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:03,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:03,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:03,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528237414] [2021-12-28 01:30:03,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528237414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:03,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:03,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:03,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904508972] [2021-12-28 01:30:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:03,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:03,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:03,986 INFO L87 Difference]: Start difference. First operand 254 states and 317 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) [2021-12-28 01:30:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:04,522 INFO L93 Difference]: Finished difference Result 581 states and 764 transitions. [2021-12-28 01:30:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:04,523 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 [2021-12-28 01:30:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:04,525 INFO L225 Difference]: With dead ends: 581 [2021-12-28 01:30:04,525 INFO L226 Difference]: Without dead ends: 493 [2021-12-28 01:30:04,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-28 01:30:04,526 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 1418 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:04,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 1233 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 01:30:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-12-28 01:30:04,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 247. [2021-12-28 01:30:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.3008474576271187) internal successors, (307), 246 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 307 transitions. [2021-12-28 01:30:04,542 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 307 transitions. Word has length 65 [2021-12-28 01:30:04,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:04,542 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 307 transitions. [2021-12-28 01:30:04,542 INFO L471 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) [2021-12-28 01:30:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 307 transitions. [2021-12-28 01:30:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:04,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:04,543 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:04,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 01:30:04,544 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:04,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:04,544 INFO L85 PathProgramCache]: Analyzing trace with hash -620136770, now seen corresponding path program 1 times [2021-12-28 01:30:04,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:04,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486673894] [2021-12-28 01:30:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:04,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:04,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:04,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:04,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486673894] [2021-12-28 01:30:04,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486673894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:04,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:04,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:04,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391293078] [2021-12-28 01:30:04,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:04,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:04,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:04,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:04,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:04,614 INFO L87 Difference]: Start difference. First operand 247 states and 307 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) [2021-12-28 01:30:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:05,078 INFO L93 Difference]: Finished difference Result 540 states and 707 transitions. [2021-12-28 01:30:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:05,078 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 [2021-12-28 01:30:05,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:05,081 INFO L225 Difference]: With dead ends: 540 [2021-12-28 01:30:05,081 INFO L226 Difference]: Without dead ends: 481 [2021-12-28 01:30:05,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-28 01:30:05,082 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 945 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:05,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 953 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-12-28 01:30:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 247. [2021-12-28 01:30:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.2966101694915255) internal successors, (306), 246 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 306 transitions. [2021-12-28 01:30:05,117 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 306 transitions. Word has length 65 [2021-12-28 01:30:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:05,117 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 306 transitions. [2021-12-28 01:30:05,117 INFO L471 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) [2021-12-28 01:30:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 306 transitions. [2021-12-28 01:30:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:05,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:05,118 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:05,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 01:30:05,118 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1292060332, now seen corresponding path program 1 times [2021-12-28 01:30:05,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:05,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514915627] [2021-12-28 01:30:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:05,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:05,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:05,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514915627] [2021-12-28 01:30:05,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514915627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:05,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:05,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:05,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810967242] [2021-12-28 01:30:05,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:05,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:05,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:05,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:05,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:05,208 INFO L87 Difference]: Start difference. First operand 247 states and 306 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) [2021-12-28 01:30:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:05,734 INFO L93 Difference]: Finished difference Result 560 states and 735 transitions. [2021-12-28 01:30:05,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:05,734 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 [2021-12-28 01:30:05,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:05,736 INFO L225 Difference]: With dead ends: 560 [2021-12-28 01:30:05,737 INFO L226 Difference]: Without dead ends: 489 [2021-12-28 01:30:05,737 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:05,738 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 1800 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:05,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1800 Valid, 1116 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 01:30:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2021-12-28 01:30:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 247. [2021-12-28 01:30:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 246 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 305 transitions. [2021-12-28 01:30:05,760 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 305 transitions. Word has length 65 [2021-12-28 01:30:05,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:05,760 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 305 transitions. [2021-12-28 01:30:05,760 INFO L471 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) [2021-12-28 01:30:05,760 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 305 transitions. [2021-12-28 01:30:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:05,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:05,761 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:05,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 01:30:05,761 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash -109241464, now seen corresponding path program 1 times [2021-12-28 01:30:05,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:05,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472664310] [2021-12-28 01:30:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:05,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:05,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:05,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472664310] [2021-12-28 01:30:05,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472664310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:05,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:05,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:05,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549672017] [2021-12-28 01:30:05,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:05,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:05,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:05,870 INFO L87 Difference]: Start difference. First operand 247 states and 305 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) [2021-12-28 01:30:06,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:06,395 INFO L93 Difference]: Finished difference Result 537 states and 702 transitions. [2021-12-28 01:30:06,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:06,395 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 [2021-12-28 01:30:06,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:06,397 INFO L225 Difference]: With dead ends: 537 [2021-12-28 01:30:06,397 INFO L226 Difference]: Without dead ends: 481 [2021-12-28 01:30:06,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-28 01:30:06,398 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 1518 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:06,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1518 Valid, 973 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-12-28 01:30:06,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 247. [2021-12-28 01:30:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.2881355932203389) internal successors, (304), 246 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 304 transitions. [2021-12-28 01:30:06,428 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 304 transitions. Word has length 65 [2021-12-28 01:30:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:06,428 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 304 transitions. [2021-12-28 01:30:06,428 INFO L471 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) [2021-12-28 01:30:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 304 transitions. [2021-12-28 01:30:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:06,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:06,429 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:06,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 01:30:06,429 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:06,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1375273345, now seen corresponding path program 1 times [2021-12-28 01:30:06,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:06,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663690640] [2021-12-28 01:30:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:06,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:06,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663690640] [2021-12-28 01:30:06,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663690640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:06,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:06,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 01:30:06,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129242328] [2021-12-28 01:30:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:06,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 01:30:06,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 01:30:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 01:30:06,560 INFO L87 Difference]: Start difference. First operand 247 states and 304 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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) [2021-12-28 01:30:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:07,692 INFO L93 Difference]: Finished difference Result 775 states and 1036 transitions. [2021-12-28 01:30:07,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 01:30:07,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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 [2021-12-28 01:30:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:07,695 INFO L225 Difference]: With dead ends: 775 [2021-12-28 01:30:07,695 INFO L226 Difference]: Without dead ends: 770 [2021-12-28 01:30:07,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-28 01:30:07,698 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 3379 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:07,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3379 Valid, 1236 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 01:30:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-12-28 01:30:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 251. [2021-12-28 01:30:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 240 states have (on average 1.2833333333333334) internal successors, (308), 250 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 308 transitions. [2021-12-28 01:30:07,725 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 308 transitions. Word has length 65 [2021-12-28 01:30:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:07,726 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 308 transitions. [2021-12-28 01:30:07,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 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) [2021-12-28 01:30:07,726 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 308 transitions. [2021-12-28 01:30:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:07,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:07,727 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:07,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 01:30:07,728 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:07,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -636059456, now seen corresponding path program 1 times [2021-12-28 01:30:07,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:07,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682765953] [2021-12-28 01:30:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:07,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:07,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:07,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682765953] [2021-12-28 01:30:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682765953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:07,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:07,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:07,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488637106] [2021-12-28 01:30:07,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:07,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:07,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:07,840 INFO L87 Difference]: Start difference. First operand 251 states and 308 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) [2021-12-28 01:30:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:08,275 INFO L93 Difference]: Finished difference Result 591 states and 771 transitions. [2021-12-28 01:30:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:08,275 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 [2021-12-28 01:30:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:08,277 INFO L225 Difference]: With dead ends: 591 [2021-12-28 01:30:08,277 INFO L226 Difference]: Without dead ends: 497 [2021-12-28 01:30:08,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-28 01:30:08,278 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1534 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:08,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 1177 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-12-28 01:30:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 251. [2021-12-28 01:30:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 240 states have (on average 1.2791666666666666) internal successors, (307), 250 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 307 transitions. [2021-12-28 01:30:08,303 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 307 transitions. Word has length 65 [2021-12-28 01:30:08,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:08,303 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 307 transitions. [2021-12-28 01:30:08,304 INFO L471 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) [2021-12-28 01:30:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 307 transitions. [2021-12-28 01:30:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:08,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:08,304 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:08,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 01:30:08,305 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:08,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2058271748, now seen corresponding path program 1 times [2021-12-28 01:30:08,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:08,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160679847] [2021-12-28 01:30:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:08,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:08,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:08,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160679847] [2021-12-28 01:30:08,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160679847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:08,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:08,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:08,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760932818] [2021-12-28 01:30:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:08,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:08,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:08,374 INFO L87 Difference]: Start difference. First operand 251 states and 307 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) [2021-12-28 01:30:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:08,934 INFO L93 Difference]: Finished difference Result 486 states and 622 transitions. [2021-12-28 01:30:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:08,935 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 [2021-12-28 01:30:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:08,937 INFO L225 Difference]: With dead ends: 486 [2021-12-28 01:30:08,937 INFO L226 Difference]: Without dead ends: 481 [2021-12-28 01:30:08,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-28 01:30:08,948 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 1520 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:08,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1520 Valid, 1112 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-12-28 01:30:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 251. [2021-12-28 01:30:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 240 states have (on average 1.275) internal successors, (306), 250 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-12-28 01:30:08,977 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 65 [2021-12-28 01:30:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:08,977 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-12-28 01:30:08,978 INFO L471 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) [2021-12-28 01:30:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-12-28 01:30:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 01:30:08,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:08,979 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:08,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 01:30:08,979 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -324498446, now seen corresponding path program 1 times [2021-12-28 01:30:08,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:08,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142272081] [2021-12-28 01:30:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:08,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:09,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:09,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142272081] [2021-12-28 01:30:09,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142272081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:09,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:09,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:09,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899396962] [2021-12-28 01:30:09,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:09,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:09,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:09,077 INFO L87 Difference]: Start difference. First operand 251 states and 306 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) [2021-12-28 01:30:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:09,536 INFO L93 Difference]: Finished difference Result 510 states and 654 transitions. [2021-12-28 01:30:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:09,536 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 [2021-12-28 01:30:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:09,537 INFO L225 Difference]: With dead ends: 510 [2021-12-28 01:30:09,538 INFO L226 Difference]: Without dead ends: 493 [2021-12-28 01:30:09,538 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:09,538 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1010 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:09,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 1295 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:09,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-12-28 01:30:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 251. [2021-12-28 01:30:09,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 250 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 305 transitions. [2021-12-28 01:30:09,566 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 305 transitions. Word has length 65 [2021-12-28 01:30:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:09,566 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 305 transitions. [2021-12-28 01:30:09,567 INFO L471 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) [2021-12-28 01:30:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 305 transitions. [2021-12-28 01:30:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-28 01:30:09,567 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:09,568 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:09,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 01:30:09,568 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:09,568 INFO L85 PathProgramCache]: Analyzing trace with hash 50031272, now seen corresponding path program 1 times [2021-12-28 01:30:09,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:09,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061441276] [2021-12-28 01:30:09,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:09,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:09,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:09,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061441276] [2021-12-28 01:30:09,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061441276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:09,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:09,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:09,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660800292] [2021-12-28 01:30:09,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:09,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:09,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:09,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:09,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:09,652 INFO L87 Difference]: Start difference. First operand 251 states and 305 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) [2021-12-28 01:30:10,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:10,210 INFO L93 Difference]: Finished difference Result 486 states and 620 transitions. [2021-12-28 01:30:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:10,211 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 [2021-12-28 01:30:10,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:10,212 INFO L225 Difference]: With dead ends: 486 [2021-12-28 01:30:10,212 INFO L226 Difference]: Without dead ends: 481 [2021-12-28 01:30:10,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-28 01:30:10,224 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1380 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:10,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1284 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-12-28 01:30:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 247. [2021-12-28 01:30:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 236 states have (on average 1.271186440677966) internal successors, (300), 246 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) [2021-12-28 01:30:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 300 transitions. [2021-12-28 01:30:10,255 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 300 transitions. Word has length 66 [2021-12-28 01:30:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:10,256 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 300 transitions. [2021-12-28 01:30:10,256 INFO L471 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) [2021-12-28 01:30:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 300 transitions. [2021-12-28 01:30:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 01:30:10,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:10,257 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:10,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 01:30:10,257 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:10,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:10,257 INFO L85 PathProgramCache]: Analyzing trace with hash -809481061, now seen corresponding path program 1 times [2021-12-28 01:30:10,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:10,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077496778] [2021-12-28 01:30:10,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:10,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:10,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:10,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077496778] [2021-12-28 01:30:10,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077496778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:10,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:10,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 01:30:10,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128365266] [2021-12-28 01:30:10,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:10,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 01:30:10,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 01:30:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-28 01:30:10,479 INFO L87 Difference]: Start difference. First operand 247 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) [2021-12-28 01:30:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:11,139 INFO L93 Difference]: Finished difference Result 709 states and 919 transitions. [2021-12-28 01:30:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 01:30:11,140 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 [2021-12-28 01:30:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:11,141 INFO L225 Difference]: With dead ends: 709 [2021-12-28 01:30:11,142 INFO L226 Difference]: Without dead ends: 592 [2021-12-28 01:30:11,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-12-28 01:30:11,142 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1612 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:11,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1612 Valid, 1711 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:11,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-12-28 01:30:11,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 184. [2021-12-28 01:30:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 177 states have (on average 1.2598870056497176) internal successors, (223), 183 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:11,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2021-12-28 01:30:11,170 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 67 [2021-12-28 01:30:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:11,170 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2021-12-28 01:30:11,170 INFO L471 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) [2021-12-28 01:30:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2021-12-28 01:30:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 01:30:11,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:11,171 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:11,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 01:30:11,171 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:11,172 INFO L85 PathProgramCache]: Analyzing trace with hash -827796874, now seen corresponding path program 1 times [2021-12-28 01:30:11,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:11,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372020575] [2021-12-28 01:30:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:11,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:11,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:11,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372020575] [2021-12-28 01:30:11,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372020575] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:11,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:11,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-28 01:30:11,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867048786] [2021-12-28 01:30:11,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:11,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 01:30:11,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:11,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 01:30:11,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-28 01:30:11,422 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:12,187 INFO L93 Difference]: Finished difference Result 488 states and 625 transitions. [2021-12-28 01:30:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 01:30:12,188 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-28 01:30:12,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:12,189 INFO L225 Difference]: With dead ends: 488 [2021-12-28 01:30:12,189 INFO L226 Difference]: Without dead ends: 430 [2021-12-28 01:30:12,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-28 01:30:12,190 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1107 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:12,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 1690 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-12-28 01:30:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 180. [2021-12-28 01:30:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 174 states have (on average 1.2528735632183907) internal successors, (218), 179 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2021-12-28 01:30:12,221 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 67 [2021-12-28 01:30:12,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:12,222 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2021-12-28 01:30:12,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:12,222 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2021-12-28 01:30:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 01:30:12,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:12,223 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:12,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 01:30:12,223 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:12,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:12,223 INFO L85 PathProgramCache]: Analyzing trace with hash 455689729, now seen corresponding path program 1 times [2021-12-28 01:30:12,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:12,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351796875] [2021-12-28 01:30:12,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:12,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:12,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:12,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351796875] [2021-12-28 01:30:12,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351796875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:12,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:12,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-28 01:30:12,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613955764] [2021-12-28 01:30:12,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:12,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 01:30:12,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 01:30:12,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-28 01:30:12,494 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:13,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:13,335 INFO L93 Difference]: Finished difference Result 433 states and 544 transitions. [2021-12-28 01:30:13,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-28 01:30:13,336 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-28 01:30:13,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:13,337 INFO L225 Difference]: With dead ends: 433 [2021-12-28 01:30:13,337 INFO L226 Difference]: Without dead ends: 429 [2021-12-28 01:30:13,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-28 01:30:13,338 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1352 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:13,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 1720 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-28 01:30:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 176. [2021-12-28 01:30:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.2514619883040936) internal successors, (214), 175 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:13,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2021-12-28 01:30:13,369 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 67 [2021-12-28 01:30:13,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:13,370 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2021-12-28 01:30:13,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2021-12-28 01:30:13,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-28 01:30:13,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:13,371 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:13,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 01:30:13,371 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1324827419, now seen corresponding path program 1 times [2021-12-28 01:30:13,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:13,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141262513] [2021-12-28 01:30:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:13,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:13,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:13,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141262513] [2021-12-28 01:30:13,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141262513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:13,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:13,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-28 01:30:13,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960059535] [2021-12-28 01:30:13,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:13,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-28 01:30:13,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:13,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-28 01:30:13,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-28 01:30:13,830 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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) [2021-12-28 01:30:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:15,470 INFO L93 Difference]: Finished difference Result 629 states and 809 transitions. [2021-12-28 01:30:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-28 01:30:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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 [2021-12-28 01:30:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:15,472 INFO L225 Difference]: With dead ends: 629 [2021-12-28 01:30:15,473 INFO L226 Difference]: Without dead ends: 568 [2021-12-28 01:30:15,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=1231, Unknown=0, NotChecked=0, Total=1482 [2021-12-28 01:30:15,474 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1715 mSDsluCounter, 4217 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:15,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 4619 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 01:30:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-12-28 01:30:15,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 190. [2021-12-28 01:30:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.2540540540540541) internal successors, (232), 189 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:15,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2021-12-28 01:30:15,529 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 67 [2021-12-28 01:30:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:15,530 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2021-12-28 01:30:15,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 22 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) [2021-12-28 01:30:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2021-12-28 01:30:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:30:15,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:15,531 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:15,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-28 01:30:15,531 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:15,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1419406755, now seen corresponding path program 1 times [2021-12-28 01:30:15,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:15,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052783314] [2021-12-28 01:30:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:15,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:16,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:16,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052783314] [2021-12-28 01:30:16,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052783314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:16,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:16,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-12-28 01:30:16,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745267420] [2021-12-28 01:30:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:16,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-28 01:30:16,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-28 01:30:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-12-28 01:30:16,106 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-12-28 01:30:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:17,680 INFO L93 Difference]: Finished difference Result 538 states and 689 transitions. [2021-12-28 01:30:17,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 01:30:17,680 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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 [2021-12-28 01:30:17,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:17,682 INFO L225 Difference]: With dead ends: 538 [2021-12-28 01:30:17,682 INFO L226 Difference]: Without dead ends: 477 [2021-12-28 01:30:17,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=344, Invalid=1138, Unknown=0, NotChecked=0, Total=1482 [2021-12-28 01:30:17,683 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 2199 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 3546 SdHoareTripleChecker+Invalid, 1615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:17,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2199 Valid, 3546 Invalid, 1615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 01:30:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-12-28 01:30:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 175. [2021-12-28 01:30:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.2411764705882353) internal successors, (211), 174 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) [2021-12-28 01:30:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2021-12-28 01:30:17,725 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 68 [2021-12-28 01:30:17,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:17,725 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2021-12-28 01:30:17,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-12-28 01:30:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2021-12-28 01:30:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:30:17,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:17,726 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:17,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-28 01:30:17,727 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:17,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:17,727 INFO L85 PathProgramCache]: Analyzing trace with hash 823611388, now seen corresponding path program 1 times [2021-12-28 01:30:17,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:17,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882180349] [2021-12-28 01:30:17,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:17,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:17,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:17,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882180349] [2021-12-28 01:30:17,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882180349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:17,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:17,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:17,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805630169] [2021-12-28 01:30:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:17,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:17,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:17,794 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:18,110 INFO L93 Difference]: Finished difference Result 271 states and 334 transitions. [2021-12-28 01:30:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 01:30:18,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-28 01:30:18,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:18,111 INFO L225 Difference]: With dead ends: 271 [2021-12-28 01:30:18,111 INFO L226 Difference]: Without dead ends: 264 [2021-12-28 01:30:18,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-12-28 01:30:18,112 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 543 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:18,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 549 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:18,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-12-28 01:30:18,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 175. [2021-12-28 01:30:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.2352941176470589) internal successors, (210), 174 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 210 transitions. [2021-12-28 01:30:18,159 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 210 transitions. Word has length 68 [2021-12-28 01:30:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:18,159 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 210 transitions. [2021-12-28 01:30:18,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,160 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 210 transitions. [2021-12-28 01:30:18,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:30:18,161 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:18,161 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:18,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-28 01:30:18,161 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash 520441226, now seen corresponding path program 1 times [2021-12-28 01:30:18,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:18,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687373252] [2021-12-28 01:30:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:18,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:18,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:18,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687373252] [2021-12-28 01:30:18,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687373252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:18,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:18,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:18,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642734916] [2021-12-28 01:30:18,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:18,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:18,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:18,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:18,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:18,257 INFO L87 Difference]: Start difference. First operand 175 states and 210 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:18,547 INFO L93 Difference]: Finished difference Result 340 states and 432 transitions. [2021-12-28 01:30:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 01:30:18,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-28 01:30:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:18,549 INFO L225 Difference]: With dead ends: 340 [2021-12-28 01:30:18,549 INFO L226 Difference]: Without dead ends: 268 [2021-12-28 01:30:18,549 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:18,550 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 938 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:18,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 662 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:18,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-12-28 01:30:18,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 175. [2021-12-28 01:30:18,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.2294117647058824) internal successors, (209), 174 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) [2021-12-28 01:30:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2021-12-28 01:30:18,599 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 68 [2021-12-28 01:30:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:18,599 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2021-12-28 01:30:18,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,600 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2021-12-28 01:30:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:30:18,600 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:18,600 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:18,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-28 01:30:18,601 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:18,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:18,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1956990499, now seen corresponding path program 1 times [2021-12-28 01:30:18,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:18,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58497492] [2021-12-28 01:30:18,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:18,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:18,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:18,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:18,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58497492] [2021-12-28 01:30:18,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58497492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:18,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:18,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 01:30:18,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826773541] [2021-12-28 01:30:18,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:18,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 01:30:18,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:18,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 01:30:18,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-28 01:30:18,674 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:18,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:18,983 INFO L93 Difference]: Finished difference Result 271 states and 332 transitions. [2021-12-28 01:30:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 01:30:18,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-28 01:30:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:18,984 INFO L225 Difference]: With dead ends: 271 [2021-12-28 01:30:18,984 INFO L226 Difference]: Without dead ends: 264 [2021-12-28 01:30:18,986 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:18,990 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 816 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:18,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 766 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 01:30:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-12-28 01:30:19,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 175. [2021-12-28 01:30:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.223529411764706) internal successors, (208), 174 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 208 transitions. [2021-12-28 01:30:19,039 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 208 transitions. Word has length 68 [2021-12-28 01:30:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:19,039 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 208 transitions. [2021-12-28 01:30:19,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 208 transitions. [2021-12-28 01:30:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-28 01:30:19,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:19,041 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:19,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-28 01:30:19,042 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:19,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1417579687, now seen corresponding path program 1 times [2021-12-28 01:30:19,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:19,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370349827] [2021-12-28 01:30:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:19,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:19,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:19,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370349827] [2021-12-28 01:30:19,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370349827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:19,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:19,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 01:30:19,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609842801] [2021-12-28 01:30:19,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:19,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 01:30:19,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:19,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 01:30:19,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 01:30:19,238 INFO L87 Difference]: Start difference. First operand 175 states and 208 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:19,698 INFO L93 Difference]: Finished difference Result 454 states and 576 transitions. [2021-12-28 01:30:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 01:30:19,701 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-28 01:30:19,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:19,709 INFO L225 Difference]: With dead ends: 454 [2021-12-28 01:30:19,710 INFO L226 Difference]: Without dead ends: 426 [2021-12-28 01:30:19,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-28 01:30:19,711 INFO L933 BasicCegarLoop]: 484 mSDtfsCounter, 922 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:19,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 2354 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-12-28 01:30:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 147. [2021-12-28 01:30:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 144 states have (on average 1.2361111111111112) internal successors, (178), 146 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:19,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 178 transitions. [2021-12-28 01:30:19,754 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 178 transitions. Word has length 68 [2021-12-28 01:30:19,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:19,754 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 178 transitions. [2021-12-28 01:30:19,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:19,755 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2021-12-28 01:30:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-28 01:30:19,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:19,755 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:19,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-28 01:30:19,757 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:19,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:19,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1997555533, now seen corresponding path program 1 times [2021-12-28 01:30:19,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:19,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360817428] [2021-12-28 01:30:19,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:19,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:20,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:20,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360817428] [2021-12-28 01:30:20,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360817428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:20,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:20,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-28 01:30:20,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500266618] [2021-12-28 01:30:20,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:20,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-28 01:30:20,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:20,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-28 01:30:20,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-28 01:30:20,234 INFO L87 Difference]: Start difference. First operand 147 states and 178 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 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) [2021-12-28 01:30:22,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:22,041 INFO L93 Difference]: Finished difference Result 648 states and 880 transitions. [2021-12-28 01:30:22,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-28 01:30:22,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 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 [2021-12-28 01:30:22,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:22,045 INFO L225 Difference]: With dead ends: 648 [2021-12-28 01:30:22,045 INFO L226 Difference]: Without dead ends: 642 [2021-12-28 01:30:22,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2021-12-28 01:30:22,046 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1696 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:22,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 3679 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 01:30:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2021-12-28 01:30:22,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 164. [2021-12-28 01:30:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.236024844720497) internal successors, (199), 163 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2021-12-28 01:30:22,098 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 70 [2021-12-28 01:30:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:22,098 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2021-12-28 01:30:22,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 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) [2021-12-28 01:30:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2021-12-28 01:30:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-28 01:30:22,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:22,099 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:22,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-28 01:30:22,099 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1662348756, now seen corresponding path program 1 times [2021-12-28 01:30:22,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:22,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046625588] [2021-12-28 01:30:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:22,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:22,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:22,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046625588] [2021-12-28 01:30:22,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046625588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:22,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:22,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-12-28 01:30:22,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964528810] [2021-12-28 01:30:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:22,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-28 01:30:22,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-28 01:30:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-12-28 01:30:22,539 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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) [2021-12-28 01:30:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:23,983 INFO L93 Difference]: Finished difference Result 515 states and 659 transitions. [2021-12-28 01:30:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 01:30:23,983 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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 [2021-12-28 01:30:23,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:23,985 INFO L225 Difference]: With dead ends: 515 [2021-12-28 01:30:23,985 INFO L226 Difference]: Without dead ends: 507 [2021-12-28 01:30:23,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=306, Invalid=1416, Unknown=0, NotChecked=0, Total=1722 [2021-12-28 01:30:23,986 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1349 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 4514 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:23,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 4514 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 01:30:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-28 01:30:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 173. [2021-12-28 01:30:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 170 states have (on average 1.2352941176470589) internal successors, (210), 172 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 210 transitions. [2021-12-28 01:30:24,061 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 210 transitions. Word has length 70 [2021-12-28 01:30:24,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:24,061 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 210 transitions. [2021-12-28 01:30:24,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 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) [2021-12-28 01:30:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 210 transitions. [2021-12-28 01:30:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-28 01:30:24,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:24,062 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:24,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-28 01:30:24,063 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2112008133, now seen corresponding path program 1 times [2021-12-28 01:30:24,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:24,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987989271] [2021-12-28 01:30:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:24,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:24,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:24,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987989271] [2021-12-28 01:30:24,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987989271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:24,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:24,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-28 01:30:24,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377052781] [2021-12-28 01:30:24,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-28 01:30:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:24,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-28 01:30:24,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-28 01:30:24,342 INFO L87 Difference]: Start difference. First operand 173 states and 210 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:25,182 INFO L93 Difference]: Finished difference Result 598 states and 812 transitions. [2021-12-28 01:30:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-28 01:30:25,183 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-28 01:30:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:25,184 INFO L225 Difference]: With dead ends: 598 [2021-12-28 01:30:25,184 INFO L226 Difference]: Without dead ends: 592 [2021-12-28 01:30:25,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-28 01:30:25,189 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1191 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:25,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 2864 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 01:30:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-12-28 01:30:25,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 155. [2021-12-28 01:30:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.2352941176470589) internal successors, (189), 154 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2021-12-28 01:30:25,241 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 71 [2021-12-28 01:30:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:25,241 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2021-12-28 01:30:25,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2021-12-28 01:30:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-28 01:30:25,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:25,242 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:25,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-28 01:30:25,242 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1776801356, now seen corresponding path program 1 times [2021-12-28 01:30:25,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:25,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043064471] [2021-12-28 01:30:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:25,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:25,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043064471] [2021-12-28 01:30:25,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043064471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:25,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:25,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-28 01:30:25,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461397952] [2021-12-28 01:30:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:25,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 01:30:25,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 01:30:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-28 01:30:25,463 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:26,174 INFO L93 Difference]: Finished difference Result 362 states and 479 transitions. [2021-12-28 01:30:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-28 01:30:26,175 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-12-28 01:30:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:26,176 INFO L225 Difference]: With dead ends: 362 [2021-12-28 01:30:26,176 INFO L226 Difference]: Without dead ends: 347 [2021-12-28 01:30:26,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-12-28 01:30:26,177 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 788 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:26,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 1851 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 01:30:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-12-28 01:30:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 129. [2021-12-28 01:30:26,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.2421875) internal successors, (159), 128 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2021-12-28 01:30:26,232 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 71 [2021-12-28 01:30:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:26,232 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2021-12-28 01:30:26,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2021-12-28 01:30:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 01:30:26,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:26,233 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:26,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-28 01:30:26,233 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash 161471129, now seen corresponding path program 1 times [2021-12-28 01:30:26,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:26,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40845334] [2021-12-28 01:30:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:26,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:26,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:26,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40845334] [2021-12-28 01:30:26,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40845334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:26,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:26,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:26,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134499071] [2021-12-28 01:30:26,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:26,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:26,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:26,277 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:26,629 INFO L93 Difference]: Finished difference Result 561 states and 791 transitions. [2021-12-28 01:30:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 01:30:26,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-28 01:30:26,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:26,631 INFO L225 Difference]: With dead ends: 561 [2021-12-28 01:30:26,631 INFO L226 Difference]: Without dead ends: 507 [2021-12-28 01:30:26,632 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:26,632 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 834 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:26,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 1258 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:26,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-28 01:30:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 181. [2021-12-28 01:30:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.3055555555555556) internal successors, (235), 180 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 235 transitions. [2021-12-28 01:30:26,715 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 235 transitions. Word has length 93 [2021-12-28 01:30:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:26,715 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 235 transitions. [2021-12-28 01:30:26,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 235 transitions. [2021-12-28 01:30:26,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:26,716 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:26,716 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:26,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-28 01:30:26,716 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash -880942767, now seen corresponding path program 1 times [2021-12-28 01:30:26,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:26,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490435796] [2021-12-28 01:30:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:26,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:26,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490435796] [2021-12-28 01:30:26,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490435796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:26,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:26,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:26,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052853049] [2021-12-28 01:30:26,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:26,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:26,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:26,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:26,764 INFO L87 Difference]: Start difference. First operand 181 states and 235 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:27,137 INFO L93 Difference]: Finished difference Result 659 states and 932 transitions. [2021-12-28 01:30:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:30:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:27,146 INFO L225 Difference]: With dead ends: 659 [2021-12-28 01:30:27,146 INFO L226 Difference]: Without dead ends: 553 [2021-12-28 01:30:27,148 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:27,148 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 642 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:27,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 769 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:27,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-12-28 01:30:27,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 285. [2021-12-28 01:30:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2021-12-28 01:30:27,348 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 95 [2021-12-28 01:30:27,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:27,348 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2021-12-28 01:30:27,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2021-12-28 01:30:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:27,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:27,349 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:27,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-28 01:30:27,349 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:27,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:27,350 INFO L85 PathProgramCache]: Analyzing trace with hash 284809815, now seen corresponding path program 1 times [2021-12-28 01:30:27,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:27,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588842841] [2021-12-28 01:30:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:27,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:27,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:27,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:27,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588842841] [2021-12-28 01:30:27,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588842841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:27,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:27,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:27,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453809827] [2021-12-28 01:30:27,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:27,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:27,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:27,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:27,439 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:27,891 INFO L93 Difference]: Finished difference Result 763 states and 1085 transitions. [2021-12-28 01:30:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:30:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:27,893 INFO L225 Difference]: With dead ends: 763 [2021-12-28 01:30:27,893 INFO L226 Difference]: Without dead ends: 657 [2021-12-28 01:30:27,893 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:27,894 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 642 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:27,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 713 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-12-28 01:30:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 441. [2021-12-28 01:30:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.4022727272727273) internal successors, (617), 440 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 617 transitions. [2021-12-28 01:30:28,167 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 617 transitions. Word has length 95 [2021-12-28 01:30:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:28,167 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 617 transitions. [2021-12-28 01:30:28,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 617 transitions. [2021-12-28 01:30:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:28,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:28,168 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:28,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-28 01:30:28,169 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:28,169 INFO L85 PathProgramCache]: Analyzing trace with hash -736748582, now seen corresponding path program 1 times [2021-12-28 01:30:28,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:28,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114690592] [2021-12-28 01:30:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:28,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:28,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:28,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114690592] [2021-12-28 01:30:28,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114690592] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:28,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:28,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:28,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619393755] [2021-12-28 01:30:28,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:28,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:28,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:28,261 INFO L87 Difference]: Start difference. First operand 441 states and 617 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:28,623 INFO L93 Difference]: Finished difference Result 809 states and 1155 transitions. [2021-12-28 01:30:28,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:30:28,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:28,625 INFO L225 Difference]: With dead ends: 809 [2021-12-28 01:30:28,626 INFO L226 Difference]: Without dead ends: 443 [2021-12-28 01:30:28,626 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:28,627 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 482 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 374 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 [2021-12-28 01:30:28,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 374 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-12-28 01:30:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2021-12-28 01:30:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.393181818181818) internal successors, (613), 440 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 613 transitions. [2021-12-28 01:30:29,015 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 613 transitions. Word has length 95 [2021-12-28 01:30:29,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:29,016 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 613 transitions. [2021-12-28 01:30:29,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:29,016 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 613 transitions. [2021-12-28 01:30:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:29,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:29,017 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:29,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-28 01:30:29,017 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:29,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:29,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1506041575, now seen corresponding path program 1 times [2021-12-28 01:30:29,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710948688] [2021-12-28 01:30:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:29,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:29,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:29,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710948688] [2021-12-28 01:30:29,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710948688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:29,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:29,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:30:29,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975851600] [2021-12-28 01:30:29,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:29,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:30:29,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:29,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:30:29,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:30:29,045 INFO L87 Difference]: Start difference. First operand 441 states and 613 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:29,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:29,563 INFO L93 Difference]: Finished difference Result 1128 states and 1604 transitions. [2021-12-28 01:30:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:30:29,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:29,566 INFO L225 Difference]: With dead ends: 1128 [2021-12-28 01:30:29,566 INFO L226 Difference]: Without dead ends: 762 [2021-12-28 01:30:29,567 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:29,567 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 66 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 365 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 [2021-12-28 01:30:29,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 365 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-12-28 01:30:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 760. [2021-12-28 01:30:30,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.391304347826087) internal successors, (1056), 759 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1056 transitions. [2021-12-28 01:30:30,116 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1056 transitions. Word has length 95 [2021-12-28 01:30:30,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:30,117 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 1056 transitions. [2021-12-28 01:30:30,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1056 transitions. [2021-12-28 01:30:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:30,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:30,118 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:30,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-28 01:30:30,119 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:30,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1675387619, now seen corresponding path program 1 times [2021-12-28 01:30:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:30,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890341438] [2021-12-28 01:30:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:30,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:30,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890341438] [2021-12-28 01:30:30,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890341438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:30,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:30,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:30,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851169502] [2021-12-28 01:30:30,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:30,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:30,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:30,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:30,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:30,166 INFO L87 Difference]: Start difference. First operand 760 states and 1056 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:31,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:31,171 INFO L93 Difference]: Finished difference Result 1550 states and 2181 transitions. [2021-12-28 01:30:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:30:31,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:31,183 INFO L225 Difference]: With dead ends: 1550 [2021-12-28 01:30:31,183 INFO L226 Difference]: Without dead ends: 1353 [2021-12-28 01:30:31,184 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:31,185 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 610 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:31,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 746 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2021-12-28 01:30:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 955. [2021-12-28 01:30:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 954 states have (on average 1.39832285115304) internal successors, (1334), 954 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1334 transitions. [2021-12-28 01:30:31,927 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1334 transitions. Word has length 95 [2021-12-28 01:30:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:31,927 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 1334 transitions. [2021-12-28 01:30:31,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1334 transitions. [2021-12-28 01:30:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-28 01:30:31,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:31,928 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:31,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-28 01:30:31,929 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1554031907, now seen corresponding path program 1 times [2021-12-28 01:30:31,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:31,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143581086] [2021-12-28 01:30:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:31,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:31,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:31,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143581086] [2021-12-28 01:30:31,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143581086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:31,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:31,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:30:31,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522922346] [2021-12-28 01:30:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:31,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:30:31,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:30:31,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:30:31,971 INFO L87 Difference]: Start difference. First operand 955 states and 1334 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:33,205 INFO L93 Difference]: Finished difference Result 1745 states and 2459 transitions. [2021-12-28 01:30:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 01:30:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-12-28 01:30:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:33,210 INFO L225 Difference]: With dead ends: 1745 [2021-12-28 01:30:33,211 INFO L226 Difference]: Without dead ends: 1548 [2021-12-28 01:30:33,211 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:33,212 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 580 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 01:30:33,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 796 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-12-28 01:30:34,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1150. [2021-12-28 01:30:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 1.4029590948651) internal successors, (1612), 1149 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1612 transitions. [2021-12-28 01:30:34,077 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1612 transitions. Word has length 95 [2021-12-28 01:30:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:34,078 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 1612 transitions. [2021-12-28 01:30:34,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1612 transitions. [2021-12-28 01:30:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-28 01:30:34,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:34,079 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:34,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-28 01:30:34,079 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1423537109, now seen corresponding path program 1 times [2021-12-28 01:30:34,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:34,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399820773] [2021-12-28 01:30:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:34,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:34,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399820773] [2021-12-28 01:30:34,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399820773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:34,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:34,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:30:34,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656503317] [2021-12-28 01:30:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:34,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:30:34,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:30:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:30:34,118 INFO L87 Difference]: Start difference. First operand 1150 states and 1612 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2021-12-28 01:30:35,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:35,514 INFO L93 Difference]: Finished difference Result 2882 states and 4059 transitions. [2021-12-28 01:30:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:30:35,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 [2021-12-28 01:30:35,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:35,518 INFO L225 Difference]: With dead ends: 2882 [2021-12-28 01:30:35,519 INFO L226 Difference]: Without dead ends: 1807 [2021-12-28 01:30:35,520 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:35,520 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 77 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 341 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 [2021-12-28 01:30:35,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:35,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2021-12-28 01:30:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1717. [2021-12-28 01:30:36,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1716 states have (on average 1.3951048951048952) internal successors, (2394), 1716 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2394 transitions. [2021-12-28 01:30:36,824 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2394 transitions. Word has length 96 [2021-12-28 01:30:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:36,825 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2394 transitions. [2021-12-28 01:30:36,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2021-12-28 01:30:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2394 transitions. [2021-12-28 01:30:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-28 01:30:36,826 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:36,826 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:36,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-28 01:30:36,827 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1571382276, now seen corresponding path program 1 times [2021-12-28 01:30:36,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:36,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398080861] [2021-12-28 01:30:36,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:36,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:36,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:36,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398080861] [2021-12-28 01:30:36,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398080861] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:36,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:36,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:30:36,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708626285] [2021-12-28 01:30:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:36,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:30:36,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:30:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:30:36,855 INFO L87 Difference]: Start difference. First operand 1717 states and 2394 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:39,399 INFO L93 Difference]: Finished difference Result 4869 states and 6791 transitions. [2021-12-28 01:30:39,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:30:39,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2021-12-28 01:30:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:39,407 INFO L225 Difference]: With dead ends: 4869 [2021-12-28 01:30:39,407 INFO L226 Difference]: Without dead ends: 3227 [2021-12-28 01:30:39,411 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:39,411 INFO L933 BasicCegarLoop]: 214 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, 341 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 [2021-12-28 01:30:39,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2021-12-28 01:30:41,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3093. [2021-12-28 01:30:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 3092 states have (on average 1.3835705045278137) internal successors, (4278), 3092 states have internal predecessors, (4278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:41,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4278 transitions. [2021-12-28 01:30:41,764 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4278 transitions. Word has length 97 [2021-12-28 01:30:41,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:41,764 INFO L470 AbstractCegarLoop]: Abstraction has 3093 states and 4278 transitions. [2021-12-28 01:30:41,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4278 transitions. [2021-12-28 01:30:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-28 01:30:41,765 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:41,765 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:41,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-28 01:30:41,765 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:41,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash 584515800, now seen corresponding path program 1 times [2021-12-28 01:30:41,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431088160] [2021-12-28 01:30:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:41,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:41,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:41,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431088160] [2021-12-28 01:30:41,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431088160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:41,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:41,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:30:41,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106818385] [2021-12-28 01:30:41,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:41,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:30:41,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:30:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:30:41,820 INFO L87 Difference]: Start difference. First operand 3093 states and 4278 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) [2021-12-28 01:30:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:46,352 INFO L93 Difference]: Finished difference Result 8865 states and 12212 transitions. [2021-12-28 01:30:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:30:46,352 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 [2021-12-28 01:30:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:46,365 INFO L225 Difference]: With dead ends: 8865 [2021-12-28 01:30:46,365 INFO L226 Difference]: Without dead ends: 5847 [2021-12-28 01:30:46,372 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:46,372 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 63 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 340 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 [2021-12-28 01:30:46,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 340 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2021-12-28 01:30:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5581. [2021-12-28 01:30:50,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5581 states, 5580 states have (on average 1.3650537634408602) internal successors, (7617), 5580 states have internal predecessors, (7617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:30:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5581 states to 5581 states and 7617 transitions. [2021-12-28 01:30:50,712 INFO L78 Accepts]: Start accepts. Automaton has 5581 states and 7617 transitions. Word has length 98 [2021-12-28 01:30:50,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:30:50,713 INFO L470 AbstractCegarLoop]: Abstraction has 5581 states and 7617 transitions. [2021-12-28 01:30:50,713 INFO L471 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) [2021-12-28 01:30:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5581 states and 7617 transitions. [2021-12-28 01:30:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 01:30:50,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:30:50,714 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:30:50,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-28 01:30:50,714 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:30:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:30:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1344323197, now seen corresponding path program 1 times [2021-12-28 01:30:50,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:30:50,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114004055] [2021-12-28 01:30:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:30:50,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:30:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:30:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:30:50,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:30:50,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114004055] [2021-12-28 01:30:50,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114004055] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:30:50,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:30:50,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 01:30:50,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581438309] [2021-12-28 01:30:50,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:30:50,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 01:30:50,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:30:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 01:30:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 01:30:50,748 INFO L87 Difference]: Start difference. First operand 5581 states and 7617 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) [2021-12-28 01:30:59,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 01:30:59,385 INFO L93 Difference]: Finished difference Result 16065 states and 21767 transitions. [2021-12-28 01:30:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 01:30:59,385 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 [2021-12-28 01:30:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 01:30:59,415 INFO L225 Difference]: With dead ends: 16065 [2021-12-28 01:30:59,415 INFO L226 Difference]: Without dead ends: 10559 [2021-12-28 01:30:59,420 INFO L932 BasicCegarLoop]: 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 [2021-12-28 01:30:59,420 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 53 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 338 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 [2021-12-28 01:30:59,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 338 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 01:30:59,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2021-12-28 01:31:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10029. [2021-12-28 01:31:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10029 states, 10028 states have (on average 1.3399481451934583) internal successors, (13437), 10028 states have internal predecessors, (13437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 01:31:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10029 states to 10029 states and 13437 transitions. [2021-12-28 01:31:07,860 INFO L78 Accepts]: Start accepts. Automaton has 10029 states and 13437 transitions. Word has length 99 [2021-12-28 01:31:07,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 01:31:07,861 INFO L470 AbstractCegarLoop]: Abstraction has 10029 states and 13437 transitions. [2021-12-28 01:31:07,861 INFO L471 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) [2021-12-28 01:31:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 10029 states and 13437 transitions. [2021-12-28 01:31:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-28 01:31:07,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 01:31:07,862 INFO L514 BasicCegarLoop]: 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] [2021-12-28 01:31:07,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-28 01:31:07,862 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-28 01:31:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 01:31:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -445596435, now seen corresponding path program 1 times [2021-12-28 01:31:07,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 01:31:07,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176428036] [2021-12-28 01:31:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 01:31:07,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 01:31:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 01:31:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 01:31:07,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 01:31:07,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176428036] [2021-12-28 01:31:07,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176428036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 01:31:07,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 01:31:07,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 01:31:07,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994799788] [2021-12-28 01:31:07,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 01:31:07,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 01:31:07,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 01:31:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 01:31:07,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 01:31:07,971 INFO L87 Difference]: Start difference. First operand 10029 states and 13437 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 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)