./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a17c5e6b377f57a67eda09046c4807c6b84e7806fd109e4ef14e9498a7cb447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:38:07,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:38:07,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:38:07,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:38:07,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:38:07,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:38:07,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:38:07,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:38:07,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:38:07,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:38:07,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:38:07,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:38:07,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:38:07,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:38:07,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:38:07,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:38:07,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:38:07,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:38:07,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:38:07,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:38:07,642 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:38:07,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:38:07,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:38:07,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:38:07,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:38:07,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:38:07,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:38:07,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:38:07,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:38:07,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:38:07,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:38:07,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:38:07,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:38:07,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:38:07,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:38:07,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:38:07,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:38:07,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:38:07,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:38:07,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:38:07,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:38:07,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:38:07,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:38:07,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:38:07,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:38:07,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:38:07,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:38:07,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:38:07,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:38:07,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:38:07,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:38:07,682 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:38:07,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:38:07,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:38:07,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:38:07,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:38:07,685 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:38:07,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:38:07,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:38:07,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:38:07,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:38:07,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:38:07,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:38:07,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:38:07,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:38:07,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:38:07,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:38:07,687 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:38:07,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:38:07,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:38:07,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a17c5e6b377f57a67eda09046c4807c6b84e7806fd109e4ef14e9498a7cb447 [2022-07-22 18:38:07,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:38:07,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:38:07,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:38:07,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:38:07,886 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:38:07,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:38:07,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c460766f/6565955011ba40af901013dfff84ef06/FLAG50e7ba92a [2022-07-22 18:38:08,351 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:38:08,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:38:08,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c460766f/6565955011ba40af901013dfff84ef06/FLAG50e7ba92a [2022-07-22 18:38:08,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c460766f/6565955011ba40af901013dfff84ef06 [2022-07-22 18:38:08,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:38:08,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:38:08,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:38:08,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:38:08,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:38:08,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:38:08" (1/1) ... [2022-07-22 18:38:08,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da1dfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:08, skipping insertion in model container [2022-07-22 18:38:08,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:38:08" (1/1) ... [2022-07-22 18:38:08,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:38:08,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:38:08,663 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.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2022-07-22 18:38:08,685 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.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2022-07-22 18:38:08,694 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.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2022-07-22 18:38:08,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2022-07-22 18:38:08,712 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.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2022-07-22 18:38:08,723 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.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2022-07-22 18:38:08,732 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.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2022-07-22 18:38:08,747 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.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2022-07-22 18:38:08,758 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.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2022-07-22 18:38:08,774 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.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2022-07-22 18:38:08,781 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.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2022-07-22 18:38:08,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:38:08,806 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:38:08,858 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.UNBOUNDED.pals.c.v+sep-reducer.c[16906,16919] [2022-07-22 18:38:08,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23310,23323] [2022-07-22 18:38:08,896 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.UNBOUNDED.pals.c.v+sep-reducer.c[26497,26510] [2022-07-22 18:38:08,919 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.UNBOUNDED.pals.c.v+sep-reducer.c[29453,29466] [2022-07-22 18:38:08,947 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.UNBOUNDED.pals.c.v+sep-reducer.c[33216,33229] [2022-07-22 18:38:08,957 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.UNBOUNDED.pals.c.v+sep-reducer.c[36248,36261] [2022-07-22 18:38:08,968 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.UNBOUNDED.pals.c.v+sep-reducer.c[39433,39446] [2022-07-22 18:38:08,977 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.UNBOUNDED.pals.c.v+sep-reducer.c[42384,42397] [2022-07-22 18:38:08,997 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.UNBOUNDED.pals.c.v+sep-reducer.c[45768,45781] [2022-07-22 18:38:09,011 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48734,48747] [2022-07-22 18:38:09,022 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.UNBOUNDED.pals.c.v+sep-reducer.c[51883,51896] [2022-07-22 18:38:09,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:38:09,051 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:38:09,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09 WrapperNode [2022-07-22 18:38:09,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:38:09,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:38:09,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:38:09,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:38:09,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,138 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2571 [2022-07-22 18:38:09,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:38:09,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:38:09,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:38:09,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:38:09,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:38:09,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:38:09,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:38:09,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:38:09,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (1/1) ... [2022-07-22 18:38:09,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:38:09,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:38:09,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 18:38:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:38:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:38:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:38:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:38:09,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 18:38:09,338 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:38:09,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:38:10,329 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:38:10,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:38:10,338 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 18:38:10,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:38:10 BoogieIcfgContainer [2022-07-22 18:38:10,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:38:10,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:38:10,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:38:10,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:38:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:38:08" (1/3) ... [2022-07-22 18:38:10,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d51887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:38:10, skipping insertion in model container [2022-07-22 18:38:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:38:09" (2/3) ... [2022-07-22 18:38:10,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d51887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:38:10, skipping insertion in model container [2022-07-22 18:38:10,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:38:10" (3/3) ... [2022-07-22 18:38:10,346 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-22 18:38:10,364 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:38:10,365 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-07-22 18:38:10,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:38:10,431 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@520dd5f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@28a529f2 [2022-07-22 18:38:10,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-07-22 18:38:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 18:38:10,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:10,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:10,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash 702631990, now seen corresponding path program 1 times [2022-07-22 18:38:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:10,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390081726] [2022-07-22 18:38:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:10,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:10,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390081726] [2022-07-22 18:38:10,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390081726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:10,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:10,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:38:10,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173087688] [2022-07-22 18:38:10,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:10,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:38:10,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:10,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:38:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:38:10,693 INFO L87 Difference]: Start difference. First operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 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) [2022-07-22 18:38:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:11,105 INFO L93 Difference]: Finished difference Result 740 states and 1288 transitions. [2022-07-22 18:38:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:38:11,108 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 [2022-07-22 18:38:11,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:11,125 INFO L225 Difference]: With dead ends: 740 [2022-07-22 18:38:11,125 INFO L226 Difference]: Without dead ends: 470 [2022-07-22 18:38:11,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:38:11,133 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 2316 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:11,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 518 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-07-22 18:38:11,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-07-22 18:38:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 459 states have (on average 1.2962962962962963) internal successors, (595), 469 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 595 transitions. [2022-07-22 18:38:11,205 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 595 transitions. Word has length 59 [2022-07-22 18:38:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 595 transitions. [2022-07-22 18:38:11,205 INFO L496 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) [2022-07-22 18:38:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 595 transitions. [2022-07-22 18:38:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 18:38:11,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:11,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:11,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 18:38:11,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 728409025, now seen corresponding path program 1 times [2022-07-22 18:38:11,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:11,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483166744] [2022-07-22 18:38:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:11,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:11,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:11,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483166744] [2022-07-22 18:38:11,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483166744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:11,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:11,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:38:11,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364679260] [2022-07-22 18:38:11,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:11,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:38:11,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:38:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:38:11,341 INFO L87 Difference]: Start difference. First operand 470 states and 595 transitions. 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) [2022-07-22 18:38:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:11,584 INFO L93 Difference]: Finished difference Result 600 states and 761 transitions. [2022-07-22 18:38:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:38:11,587 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 [2022-07-22 18:38:11,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:11,588 INFO L225 Difference]: With dead ends: 600 [2022-07-22 18:38:11,589 INFO L226 Difference]: Without dead ends: 356 [2022-07-22 18:38:11,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:38:11,592 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1295 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:11,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 243 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-07-22 18:38:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-07-22 18:38:11,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.3101449275362318) internal successors, (452), 355 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 452 transitions. [2022-07-22 18:38:11,612 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 452 transitions. Word has length 59 [2022-07-22 18:38:11,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:11,613 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 452 transitions. [2022-07-22 18:38:11,613 INFO L496 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) [2022-07-22 18:38:11,613 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 452 transitions. [2022-07-22 18:38:11,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 18:38:11,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:11,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:11,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 18:38:11,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:11,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:11,615 INFO L85 PathProgramCache]: Analyzing trace with hash -466198780, now seen corresponding path program 1 times [2022-07-22 18:38:11,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:11,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116866284] [2022-07-22 18:38:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:11,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:11,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:11,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116866284] [2022-07-22 18:38:11,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116866284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:11,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:11,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:38:11,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888612317] [2022-07-22 18:38:11,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:11,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:38:11,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:11,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:38:11,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:38:11,726 INFO L87 Difference]: Start difference. First operand 356 states and 452 transitions. 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) [2022-07-22 18:38:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:11,886 INFO L93 Difference]: Finished difference Result 506 states and 651 transitions. [2022-07-22 18:38:11,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:38:11,887 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 [2022-07-22 18:38:11,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:11,888 INFO L225 Difference]: With dead ends: 506 [2022-07-22 18:38:11,888 INFO L226 Difference]: Without dead ends: 312 [2022-07-22 18:38:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:38:11,891 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1153 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:11,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 219 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:38:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-07-22 18:38:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-07-22 18:38:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 311 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 399 transitions. [2022-07-22 18:38:11,902 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 399 transitions. Word has length 59 [2022-07-22 18:38:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:11,903 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 399 transitions. [2022-07-22 18:38:11,903 INFO L496 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) [2022-07-22 18:38:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 399 transitions. [2022-07-22 18:38:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-22 18:38:11,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:11,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:11,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 18:38:11,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:11,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:11,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1447561490, now seen corresponding path program 1 times [2022-07-22 18:38:11,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:11,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660947111] [2022-07-22 18:38:11,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:11,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:11,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:11,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660947111] [2022-07-22 18:38:11,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660947111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:11,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:12,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:38:12,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864720925] [2022-07-22 18:38:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:12,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:38:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:38:12,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:38:12,004 INFO L87 Difference]: Start difference. First operand 312 states and 399 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:12,128 INFO L93 Difference]: Finished difference Result 410 states and 519 transitions. [2022-07-22 18:38:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:38:12,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-07-22 18:38:12,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:12,130 INFO L225 Difference]: With dead ends: 410 [2022-07-22 18:38:12,130 INFO L226 Difference]: Without dead ends: 245 [2022-07-22 18:38:12,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:38:12,132 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 855 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:12,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 195 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:38:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-07-22 18:38:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-07-22 18:38:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3205128205128205) internal successors, (309), 244 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 309 transitions. [2022-07-22 18:38:12,144 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 309 transitions. Word has length 60 [2022-07-22 18:38:12,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:12,145 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 309 transitions. [2022-07-22 18:38:12,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 309 transitions. [2022-07-22 18:38:12,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 18:38:12,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:12,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:12,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 18:38:12,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:12,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:12,149 INFO L85 PathProgramCache]: Analyzing trace with hash -944801897, now seen corresponding path program 1 times [2022-07-22 18:38:12,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:12,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188391171] [2022-07-22 18:38:12,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:12,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:12,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:12,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188391171] [2022-07-22 18:38:12,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188391171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:12,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:12,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740916465] [2022-07-22 18:38:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:12,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:12,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:12,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:12,285 INFO L87 Difference]: Start difference. First operand 245 states and 309 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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) [2022-07-22 18:38:12,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:12,705 INFO L93 Difference]: Finished difference Result 484 states and 632 transitions. [2022-07-22 18:38:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:12,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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 [2022-07-22 18:38:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:12,707 INFO L225 Difference]: With dead ends: 484 [2022-07-22 18:38:12,708 INFO L226 Difference]: Without dead ends: 479 [2022-07-22 18:38:12,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:12,709 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 986 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:12,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 921 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-22 18:38:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 245. [2022-07-22 18:38:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3162393162393162) internal successors, (308), 244 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) [2022-07-22 18:38:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2022-07-22 18:38:12,726 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 61 [2022-07-22 18:38:12,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:12,727 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2022-07-22 18:38:12,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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) [2022-07-22 18:38:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2022-07-22 18:38:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 18:38:12,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:12,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 18:38:12,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 448084895, now seen corresponding path program 1 times [2022-07-22 18:38:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:12,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668134179] [2022-07-22 18:38:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:12,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:12,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668134179] [2022-07-22 18:38:12,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668134179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:12,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:12,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:12,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82267122] [2022-07-22 18:38:12,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:12,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:12,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:12,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:12,834 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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) [2022-07-22 18:38:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:13,271 INFO L93 Difference]: Finished difference Result 579 states and 770 transitions. [2022-07-22 18:38:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:13,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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 [2022-07-22 18:38:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:13,273 INFO L225 Difference]: With dead ends: 579 [2022-07-22 18:38:13,274 INFO L226 Difference]: Without dead ends: 491 [2022-07-22 18:38:13,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:13,275 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 2047 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:13,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2047 Valid, 874 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-22 18:38:13,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 245. [2022-07-22 18:38:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.311965811965812) internal successors, (307), 244 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) [2022-07-22 18:38:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 307 transitions. [2022-07-22 18:38:13,291 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 307 transitions. Word has length 61 [2022-07-22 18:38:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:13,291 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 307 transitions. [2022-07-22 18:38:13,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 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) [2022-07-22 18:38:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 307 transitions. [2022-07-22 18:38:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-22 18:38:13,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:13,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:13,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 18:38:13,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:13,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1014019097, now seen corresponding path program 1 times [2022-07-22 18:38:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030600979] [2022-07-22 18:38:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:13,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:13,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:13,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030600979] [2022-07-22 18:38:13,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030600979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:13,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:13,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:38:13,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751454525] [2022-07-22 18:38:13,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:13,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:38:13,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:13,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:38:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:38:13,393 INFO L87 Difference]: Start difference. First operand 245 states and 307 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 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) [2022-07-22 18:38:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:13,682 INFO L93 Difference]: Finished difference Result 484 states and 609 transitions. [2022-07-22 18:38:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:38:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 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 [2022-07-22 18:38:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:13,685 INFO L225 Difference]: With dead ends: 484 [2022-07-22 18:38:13,685 INFO L226 Difference]: Without dead ends: 351 [2022-07-22 18:38:13,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:38:13,686 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1059 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:13,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 455 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-22 18:38:13,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 245. [2022-07-22 18:38:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3076923076923077) internal successors, (306), 244 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) [2022-07-22 18:38:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 306 transitions. [2022-07-22 18:38:13,700 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 306 transitions. Word has length 61 [2022-07-22 18:38:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:13,700 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 306 transitions. [2022-07-22 18:38:13,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 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) [2022-07-22 18:38:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 306 transitions. [2022-07-22 18:38:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:13,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:13,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:13,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 18:38:13,701 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:13,702 INFO L85 PathProgramCache]: Analyzing trace with hash -471732578, now seen corresponding path program 1 times [2022-07-22 18:38:13,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:13,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224202609] [2022-07-22 18:38:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:13,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:13,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:13,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224202609] [2022-07-22 18:38:13,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224202609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:13,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:13,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659530433] [2022-07-22 18:38:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:13,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:13,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:13,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:13,793 INFO L87 Difference]: Start difference. First operand 245 states and 306 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) [2022-07-22 18:38:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:14,270 INFO L93 Difference]: Finished difference Result 504 states and 659 transitions. [2022-07-22 18:38:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:14,271 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 [2022-07-22 18:38:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:14,272 INFO L225 Difference]: With dead ends: 504 [2022-07-22 18:38:14,273 INFO L226 Difference]: Without dead ends: 487 [2022-07-22 18:38:14,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:38:14,276 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1776 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:14,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1043 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-22 18:38:14,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 245. [2022-07-22 18:38:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.3034188034188035) internal successors, (305), 244 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) [2022-07-22 18:38:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 305 transitions. [2022-07-22 18:38:14,293 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 305 transitions. Word has length 63 [2022-07-22 18:38:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 305 transitions. [2022-07-22 18:38:14,293 INFO L496 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) [2022-07-22 18:38:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 305 transitions. [2022-07-22 18:38:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:14,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:14,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:14,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 18:38:14,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:14,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash -157878139, now seen corresponding path program 1 times [2022-07-22 18:38:14,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:14,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450524467] [2022-07-22 18:38:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:14,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:14,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450524467] [2022-07-22 18:38:14,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450524467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:14,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:14,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318333376] [2022-07-22 18:38:14,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:14,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:14,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:14,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:14,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:14,390 INFO L87 Difference]: Start difference. First operand 245 states and 305 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) [2022-07-22 18:38:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:14,832 INFO L93 Difference]: Finished difference Result 484 states and 627 transitions. [2022-07-22 18:38:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:14,833 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 [2022-07-22 18:38:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:14,834 INFO L225 Difference]: With dead ends: 484 [2022-07-22 18:38:14,835 INFO L226 Difference]: Without dead ends: 479 [2022-07-22 18:38:14,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:14,837 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 941 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:14,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 976 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-22 18:38:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 245. [2022-07-22 18:38:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2991452991452992) internal successors, (304), 244 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) [2022-07-22 18:38:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 304 transitions. [2022-07-22 18:38:14,858 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 304 transitions. Word has length 63 [2022-07-22 18:38:14,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:14,859 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 304 transitions. [2022-07-22 18:38:14,859 INFO L496 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) [2022-07-22 18:38:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 304 transitions. [2022-07-22 18:38:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:14,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:14,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:14,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 18:38:14,860 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:14,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:14,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2011079223, now seen corresponding path program 1 times [2022-07-22 18:38:14,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:14,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484286494] [2022-07-22 18:38:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:14,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:14,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:14,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:14,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484286494] [2022-07-22 18:38:14,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484286494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:14,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:14,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:14,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133195882] [2022-07-22 18:38:14,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:14,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:14,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:14,939 INFO L87 Difference]: Start difference. First operand 245 states and 304 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) [2022-07-22 18:38:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:15,427 INFO L93 Difference]: Finished difference Result 585 states and 769 transitions. [2022-07-22 18:38:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:15,427 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 [2022-07-22 18:38:15,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:15,429 INFO L225 Difference]: With dead ends: 585 [2022-07-22 18:38:15,430 INFO L226 Difference]: Without dead ends: 491 [2022-07-22 18:38:15,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:15,430 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 1853 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:15,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 1168 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-22 18:38:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 245. [2022-07-22 18:38:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.294871794871795) internal successors, (303), 244 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 303 transitions. [2022-07-22 18:38:15,450 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 303 transitions. Word has length 63 [2022-07-22 18:38:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:15,450 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 303 transitions. [2022-07-22 18:38:15,450 INFO L496 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) [2022-07-22 18:38:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 303 transitions. [2022-07-22 18:38:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:15,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:15,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:15,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 18:38:15,452 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 556986468, now seen corresponding path program 1 times [2022-07-22 18:38:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521231676] [2022-07-22 18:38:15,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:15,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:15,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:15,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521231676] [2022-07-22 18:38:15,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521231676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:15,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:15,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:15,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597147476] [2022-07-22 18:38:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:15,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:15,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:15,542 INFO L87 Difference]: Start difference. First operand 245 states and 303 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) [2022-07-22 18:38:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:16,020 INFO L93 Difference]: Finished difference Result 558 states and 737 transitions. [2022-07-22 18:38:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:16,023 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 [2022-07-22 18:38:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:16,025 INFO L225 Difference]: With dead ends: 558 [2022-07-22 18:38:16,025 INFO L226 Difference]: Without dead ends: 487 [2022-07-22 18:38:16,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:16,026 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1789 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:16,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 1219 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:16,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-22 18:38:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 245. [2022-07-22 18:38:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2905982905982907) internal successors, (302), 244 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 302 transitions. [2022-07-22 18:38:16,045 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 302 transitions. Word has length 63 [2022-07-22 18:38:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:16,045 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 302 transitions. [2022-07-22 18:38:16,045 INFO L496 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) [2022-07-22 18:38:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 302 transitions. [2022-07-22 18:38:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:16,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:16,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:16,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 18:38:16,047 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:16,048 INFO L85 PathProgramCache]: Analyzing trace with hash -33472501, now seen corresponding path program 1 times [2022-07-22 18:38:16,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:16,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895376277] [2022-07-22 18:38:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:16,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:16,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:16,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895376277] [2022-07-22 18:38:16,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895376277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:16,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:16,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:16,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249399619] [2022-07-22 18:38:16,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:16,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:16,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:16,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:16,115 INFO L87 Difference]: Start difference. First operand 245 states and 302 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) [2022-07-22 18:38:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:16,563 INFO L93 Difference]: Finished difference Result 538 states and 705 transitions. [2022-07-22 18:38:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:16,564 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 [2022-07-22 18:38:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:16,565 INFO L225 Difference]: With dead ends: 538 [2022-07-22 18:38:16,565 INFO L226 Difference]: Without dead ends: 479 [2022-07-22 18:38:16,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:16,566 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 1297 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:16,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 1027 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:16,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-22 18:38:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 245. [2022-07-22 18:38:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2863247863247864) internal successors, (301), 244 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 301 transitions. [2022-07-22 18:38:16,588 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 301 transitions. Word has length 63 [2022-07-22 18:38:16,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:16,588 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 301 transitions. [2022-07-22 18:38:16,588 INFO L496 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) [2022-07-22 18:38:16,588 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 301 transitions. [2022-07-22 18:38:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:16,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:16,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:16,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 18:38:16,589 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 543767036, now seen corresponding path program 1 times [2022-07-22 18:38:16,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:16,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039738464] [2022-07-22 18:38:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:16,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:16,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039738464] [2022-07-22 18:38:16,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039738464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:16,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:16,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065989935] [2022-07-22 18:38:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:16,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:16,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:16,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:16,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:16,653 INFO L87 Difference]: Start difference. First operand 245 states and 301 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) [2022-07-22 18:38:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:17,081 INFO L93 Difference]: Finished difference Result 535 states and 701 transitions. [2022-07-22 18:38:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:17,081 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 [2022-07-22 18:38:17,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:17,083 INFO L225 Difference]: With dead ends: 535 [2022-07-22 18:38:17,083 INFO L226 Difference]: Without dead ends: 479 [2022-07-22 18:38:17,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:38:17,084 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1327 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:17,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 995 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-22 18:38:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 245. [2022-07-22 18:38:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2820512820512822) internal successors, (300), 244 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 300 transitions. [2022-07-22 18:38:17,128 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 300 transitions. Word has length 63 [2022-07-22 18:38:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:17,129 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 300 transitions. [2022-07-22 18:38:17,129 INFO L496 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) [2022-07-22 18:38:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 300 transitions. [2022-07-22 18:38:17,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 18:38:17,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:17,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:17,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 18:38:17,130 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:17,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash -130251118, now seen corresponding path program 1 times [2022-07-22 18:38:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:17,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006105498] [2022-07-22 18:38:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:17,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:17,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006105498] [2022-07-22 18:38:17,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006105498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:17,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:17,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:17,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928152899] [2022-07-22 18:38:17,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:17,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:17,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:17,280 INFO L87 Difference]: Start difference. First operand 245 states and 300 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) [2022-07-22 18:38:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:17,826 INFO L93 Difference]: Finished difference Result 553 states and 726 transitions. [2022-07-22 18:38:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:38:17,826 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 [2022-07-22 18:38:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:17,828 INFO L225 Difference]: With dead ends: 553 [2022-07-22 18:38:17,828 INFO L226 Difference]: Without dead ends: 487 [2022-07-22 18:38:17,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:38:17,829 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1652 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:17,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1138 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-07-22 18:38:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 245. [2022-07-22 18:38:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 234 states have (on average 1.2777777777777777) internal successors, (299), 244 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:17,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 299 transitions. [2022-07-22 18:38:17,850 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 299 transitions. Word has length 63 [2022-07-22 18:38:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:17,851 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 299 transitions. [2022-07-22 18:38:17,851 INFO L496 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) [2022-07-22 18:38:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 299 transitions. [2022-07-22 18:38:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-22 18:38:17,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:17,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:17,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 18:38:17,852 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:17,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2022048839, now seen corresponding path program 1 times [2022-07-22 18:38:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:17,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672218864] [2022-07-22 18:38:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:18,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:18,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672218864] [2022-07-22 18:38:18,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672218864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:18,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:18,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-22 18:38:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589695669] [2022-07-22 18:38:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:18,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-22 18:38:18,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-22 18:38:18,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:18,386 INFO L87 Difference]: Start difference. First operand 245 states and 299 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:21,374 INFO L93 Difference]: Finished difference Result 766 states and 951 transitions. [2022-07-22 18:38:21,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:38:21,375 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-22 18:38:21,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:21,377 INFO L225 Difference]: With dead ends: 766 [2022-07-22 18:38:21,377 INFO L226 Difference]: Without dead ends: 754 [2022-07-22 18:38:21,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=320, Invalid=1572, Unknown=0, NotChecked=0, Total=1892 [2022-07-22 18:38:21,381 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 2293 mSDsluCounter, 8117 mSDsCounter, 0 mSdLazyCounter, 4619 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 8767 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:21,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 8767 Invalid, 4717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4619 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-22 18:38:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-07-22 18:38:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 260. [2022-07-22 18:38:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 249 states have (on average 1.2771084337349397) internal successors, (318), 259 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 318 transitions. [2022-07-22 18:38:21,433 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 318 transitions. Word has length 65 [2022-07-22 18:38:21,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:21,433 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 318 transitions. [2022-07-22 18:38:21,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 318 transitions. [2022-07-22 18:38:21,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-22 18:38:21,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:21,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:21,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 18:38:21,435 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:21,435 INFO L85 PathProgramCache]: Analyzing trace with hash 71013216, now seen corresponding path program 1 times [2022-07-22 18:38:21,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:21,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791911624] [2022-07-22 18:38:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:21,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:21,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:21,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791911624] [2022-07-22 18:38:21,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791911624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:21,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:21,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-22 18:38:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735433313] [2022-07-22 18:38:21,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:21,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-22 18:38:21,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:21,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-22 18:38:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:21,874 INFO L87 Difference]: Start difference. First operand 260 states and 318 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:24,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:24,434 INFO L93 Difference]: Finished difference Result 806 states and 1017 transitions. [2022-07-22 18:38:24,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:38:24,435 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-22 18:38:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:24,437 INFO L225 Difference]: With dead ends: 806 [2022-07-22 18:38:24,437 INFO L226 Difference]: Without dead ends: 745 [2022-07-22 18:38:24,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=280, Invalid=1442, Unknown=0, NotChecked=0, Total=1722 [2022-07-22 18:38:24,438 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 2122 mSDsluCounter, 7873 mSDsCounter, 0 mSdLazyCounter, 4573 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 4662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:24,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 8501 Invalid, 4662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4573 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-22 18:38:24,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-07-22 18:38:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 265. [2022-07-22 18:38:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 254 states have (on average 1.2755905511811023) internal successors, (324), 264 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:24,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2022-07-22 18:38:24,477 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 65 [2022-07-22 18:38:24,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:24,477 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2022-07-22 18:38:24,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:24,477 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2022-07-22 18:38:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-22 18:38:24,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:24,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:24,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 18:38:24,478 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:24,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:24,479 INFO L85 PathProgramCache]: Analyzing trace with hash -907607662, now seen corresponding path program 1 times [2022-07-22 18:38:24,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:24,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390664108] [2022-07-22 18:38:24,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:24,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:24,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:24,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390664108] [2022-07-22 18:38:24,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390664108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:24,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:24,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:38:24,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415719064] [2022-07-22 18:38:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:24,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:24,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:24,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:24,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:24,670 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:25,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:25,416 INFO L93 Difference]: Finished difference Result 687 states and 917 transitions. [2022-07-22 18:38:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:38:25,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-22 18:38:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:25,418 INFO L225 Difference]: With dead ends: 687 [2022-07-22 18:38:25,418 INFO L226 Difference]: Without dead ends: 617 [2022-07-22 18:38:25,419 INFO L412 NwaCegarLoop]: 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 [2022-07-22 18:38:25,419 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 1541 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:25,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 3598 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:38:25,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-07-22 18:38:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 249. [2022-07-22 18:38:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 248 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) [2022-07-22 18:38:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 305 transitions. [2022-07-22 18:38:25,466 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 305 transitions. Word has length 65 [2022-07-22 18:38:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:25,467 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 305 transitions. [2022-07-22 18:38:25,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 305 transitions. [2022-07-22 18:38:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-22 18:38:25,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:25,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:25,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 18:38:25,468 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1360022849, now seen corresponding path program 1 times [2022-07-22 18:38:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:25,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078447191] [2022-07-22 18:38:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:25,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:25,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078447191] [2022-07-22 18:38:25,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078447191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:25,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:25,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:38:25,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172006654] [2022-07-22 18:38:25,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:25,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:38:25,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:25,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:38:25,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:38:25,630 INFO L87 Difference]: Start difference. First operand 249 states and 305 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) 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) [2022-07-22 18:38:26,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:26,234 INFO L93 Difference]: Finished difference Result 658 states and 871 transitions. [2022-07-22 18:38:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 18:38:26,235 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) 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 [2022-07-22 18:38:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:26,236 INFO L225 Difference]: With dead ends: 658 [2022-07-22 18:38:26,236 INFO L226 Difference]: Without dead ends: 541 [2022-07-22 18:38:26,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:26,237 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1954 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:26,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1954 Valid, 1318 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:26,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-07-22 18:38:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 186. [2022-07-22 18:38:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.2596685082872927) internal successors, (228), 185 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 228 transitions. [2022-07-22 18:38:26,289 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 228 transitions. Word has length 65 [2022-07-22 18:38:26,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:26,290 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 228 transitions. [2022-07-22 18:38:26,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) 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) [2022-07-22 18:38:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 228 transitions. [2022-07-22 18:38:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:26,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:26,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:26,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 18:38:26,298 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1910519334, now seen corresponding path program 1 times [2022-07-22 18:38:26,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:26,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498014350] [2022-07-22 18:38:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:26,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:26,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498014350] [2022-07-22 18:38:26,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498014350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:26,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:26,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777804736] [2022-07-22 18:38:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:26,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:26,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:26,426 INFO L87 Difference]: Start difference. First operand 186 states and 228 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:26,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:26,747 INFO L93 Difference]: Finished difference Result 286 states and 356 transitions. [2022-07-22 18:38:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:38:26,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:26,750 INFO L225 Difference]: With dead ends: 286 [2022-07-22 18:38:26,750 INFO L226 Difference]: Without dead ends: 279 [2022-07-22 18:38:26,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-22 18:38:26,751 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 547 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:26,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 514 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-22 18:38:26,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 186. [2022-07-22 18:38:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 181 states have (on average 1.2486187845303867) internal successors, (226), 185 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 226 transitions. [2022-07-22 18:38:26,783 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 226 transitions. Word has length 66 [2022-07-22 18:38:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:26,783 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 226 transitions. [2022-07-22 18:38:26,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 226 transitions. [2022-07-22 18:38:26,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:26,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:26,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:26,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 18:38:26,784 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash -679485959, now seen corresponding path program 1 times [2022-07-22 18:38:26,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:26,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704208196] [2022-07-22 18:38:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:26,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:27,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:27,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704208196] [2022-07-22 18:38:27,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704208196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:27,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:27,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-22 18:38:27,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659814129] [2022-07-22 18:38:27,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:27,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 18:38:27,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:27,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 18:38:27,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-22 18:38:27,121 INFO L87 Difference]: Start difference. First operand 186 states and 226 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:28,191 INFO L93 Difference]: Finished difference Result 500 states and 647 transitions. [2022-07-22 18:38:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 18:38:28,192 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:28,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:28,193 INFO L225 Difference]: With dead ends: 500 [2022-07-22 18:38:28,193 INFO L226 Difference]: Without dead ends: 496 [2022-07-22 18:38:28,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2022-07-22 18:38:28,194 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1279 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:28,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 2813 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:38:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-22 18:38:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 191. [2022-07-22 18:38:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 190 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) [2022-07-22 18:38:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 232 transitions. [2022-07-22 18:38:28,238 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 232 transitions. Word has length 66 [2022-07-22 18:38:28,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:28,238 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 232 transitions. [2022-07-22 18:38:28,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 17 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 232 transitions. [2022-07-22 18:38:28,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:28,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:28,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:28,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 18:38:28,239 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:28,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:28,240 INFO L85 PathProgramCache]: Analyzing trace with hash -595757799, now seen corresponding path program 1 times [2022-07-22 18:38:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:28,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001397849] [2022-07-22 18:38:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:28,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:28,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:28,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001397849] [2022-07-22 18:38:28,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001397849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:28,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:28,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:38:28,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531252228] [2022-07-22 18:38:28,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:28,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:38:28,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:28,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:38:28,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:38:28,412 INFO L87 Difference]: Start difference. First operand 191 states and 232 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:28,956 INFO L93 Difference]: Finished difference Result 482 states and 639 transitions. [2022-07-22 18:38:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:38:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:28,958 INFO L225 Difference]: With dead ends: 482 [2022-07-22 18:38:28,958 INFO L226 Difference]: Without dead ends: 376 [2022-07-22 18:38:28,959 INFO L412 NwaCegarLoop]: 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 [2022-07-22 18:38:28,959 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 848 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:28,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2099 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:28,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-07-22 18:38:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 133. [2022-07-22 18:38:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 131 states have (on average 1.2595419847328244) internal successors, (165), 132 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 165 transitions. [2022-07-22 18:38:28,991 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 165 transitions. Word has length 66 [2022-07-22 18:38:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:28,991 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 165 transitions. [2022-07-22 18:38:28,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 165 transitions. [2022-07-22 18:38:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 18:38:28,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:28,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:28,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 18:38:28,992 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash 476193166, now seen corresponding path program 1 times [2022-07-22 18:38:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:28,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932025426] [2022-07-22 18:38:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:28,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:29,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:29,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932025426] [2022-07-22 18:38:29,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932025426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:29,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:29,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:38:29,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619360541] [2022-07-22 18:38:29,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:29,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:38:29,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:38:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:29,055 INFO L87 Difference]: Start difference. First operand 133 states and 165 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:29,373 INFO L93 Difference]: Finished difference Result 286 states and 376 transitions. [2022-07-22 18:38:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:38:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-22 18:38:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:29,374 INFO L225 Difference]: With dead ends: 286 [2022-07-22 18:38:29,374 INFO L226 Difference]: Without dead ends: 214 [2022-07-22 18:38:29,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:38:29,375 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 597 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:29,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 527 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-07-22 18:38:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 133. [2022-07-22 18:38:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 131 states have (on average 1.251908396946565) internal successors, (164), 132 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 164 transitions. [2022-07-22 18:38:29,406 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 164 transitions. Word has length 66 [2022-07-22 18:38:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:29,407 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 164 transitions. [2022-07-22 18:38:29,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 164 transitions. [2022-07-22 18:38:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 18:38:29,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:29,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:29,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 18:38:29,408 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:29,408 INFO L85 PathProgramCache]: Analyzing trace with hash 989039241, now seen corresponding path program 1 times [2022-07-22 18:38:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:29,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257439701] [2022-07-22 18:38:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:29,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:29,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:29,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257439701] [2022-07-22 18:38:29,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257439701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:29,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:29,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-07-22 18:38:29,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684824626] [2022-07-22 18:38:29,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:29,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-22 18:38:29,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-22 18:38:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-07-22 18:38:29,873 INFO L87 Difference]: Start difference. First operand 133 states and 164 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:32,230 INFO L93 Difference]: Finished difference Result 688 states and 939 transitions. [2022-07-22 18:38:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-22 18:38:32,230 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-22 18:38:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:32,232 INFO L225 Difference]: With dead ends: 688 [2022-07-22 18:38:32,232 INFO L226 Difference]: Without dead ends: 682 [2022-07-22 18:38:32,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=265, Invalid=1375, Unknown=0, NotChecked=0, Total=1640 [2022-07-22 18:38:32,233 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1685 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 6283 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:32,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 6283 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2907 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-22 18:38:32,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2022-07-22 18:38:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 149. [2022-07-22 18:38:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 147 states have (on average 1.251700680272109) internal successors, (184), 148 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 184 transitions. [2022-07-22 18:38:32,274 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 184 transitions. Word has length 68 [2022-07-22 18:38:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:32,274 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 184 transitions. [2022-07-22 18:38:32,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 184 transitions. [2022-07-22 18:38:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 18:38:32,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:32,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:32,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 18:38:32,275 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:32,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 882869858, now seen corresponding path program 1 times [2022-07-22 18:38:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:32,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393912145] [2022-07-22 18:38:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393912145] [2022-07-22 18:38:32,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393912145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:32,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:32,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-22 18:38:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999966091] [2022-07-22 18:38:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:32,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 18:38:32,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:32,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 18:38:32,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:38:32,524 INFO L87 Difference]: Start difference. First operand 149 states and 184 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:33,711 INFO L93 Difference]: Finished difference Result 607 states and 846 transitions. [2022-07-22 18:38:33,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 18:38:33,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-22 18:38:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:33,713 INFO L225 Difference]: With dead ends: 607 [2022-07-22 18:38:33,713 INFO L226 Difference]: Without dead ends: 601 [2022-07-22 18:38:33,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:38:33,714 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1286 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:33,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 3281 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:38:33,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-07-22 18:38:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 139. [2022-07-22 18:38:33,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 138 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2022-07-22 18:38:33,754 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 69 [2022-07-22 18:38:33,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:33,754 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2022-07-22 18:38:33,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 14 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2022-07-22 18:38:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 18:38:33,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:33,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:33,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-22 18:38:33,755 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:33,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1637741865, now seen corresponding path program 1 times [2022-07-22 18:38:33,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069038073] [2022-07-22 18:38:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:33,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:34,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:34,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069038073] [2022-07-22 18:38:34,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069038073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:34,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:34,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:38:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118208465] [2022-07-22 18:38:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:34,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:38:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:38:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:38:34,006 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:34,807 INFO L93 Difference]: Finished difference Result 550 states and 765 transitions. [2022-07-22 18:38:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:38:34,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-22 18:38:34,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:34,810 INFO L225 Difference]: With dead ends: 550 [2022-07-22 18:38:34,810 INFO L226 Difference]: Without dead ends: 544 [2022-07-22 18:38:34,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:38:34,814 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1206 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:34,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 2610 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:38:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-22 18:38:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 127. [2022-07-22 18:38:34,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.253968253968254) internal successors, (158), 126 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2022-07-22 18:38:34,873 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 69 [2022-07-22 18:38:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:34,873 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2022-07-22 18:38:34,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2022-07-22 18:38:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 18:38:34,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:34,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:34,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 18:38:34,875 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:34,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:34,875 INFO L85 PathProgramCache]: Analyzing trace with hash 262304865, now seen corresponding path program 1 times [2022-07-22 18:38:34,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:34,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826013026] [2022-07-22 18:38:34,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:34,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:34,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826013026] [2022-07-22 18:38:34,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826013026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:34,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:34,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:34,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912618661] [2022-07-22 18:38:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:34,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:34,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:34,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:34,918 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:35,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:35,235 INFO L93 Difference]: Finished difference Result 559 states and 798 transitions. [2022-07-22 18:38:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 18:38:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-07-22 18:38:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:35,237 INFO L225 Difference]: With dead ends: 559 [2022-07-22 18:38:35,237 INFO L226 Difference]: Without dead ends: 505 [2022-07-22 18:38:35,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:38:35,238 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 892 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:35,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 949 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:35,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-07-22 18:38:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 179. [2022-07-22 18:38:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.3202247191011236) internal successors, (235), 178 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) [2022-07-22 18:38:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2022-07-22 18:38:35,312 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 91 [2022-07-22 18:38:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:35,312 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2022-07-22 18:38:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2022-07-22 18:38:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 18:38:35,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:35,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-22 18:38:35,313 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash -403802728, now seen corresponding path program 1 times [2022-07-22 18:38:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:35,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057291044] [2022-07-22 18:38:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:35,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:35,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057291044] [2022-07-22 18:38:35,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057291044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:35,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:35,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738803395] [2022-07-22 18:38:35,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:35,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:35,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:35,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:35,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:35,356 INFO L87 Difference]: Start difference. First operand 179 states and 235 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) [2022-07-22 18:38:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:35,694 INFO L93 Difference]: Finished difference Result 657 states and 941 transitions. [2022-07-22 18:38:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:35,695 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 [2022-07-22 18:38:35,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:35,696 INFO L225 Difference]: With dead ends: 657 [2022-07-22 18:38:35,696 INFO L226 Difference]: Without dead ends: 551 [2022-07-22 18:38:35,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:35,697 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 645 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:35,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 671 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-07-22 18:38:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 283. [2022-07-22 18:38:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.3829787234042554) internal successors, (390), 282 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 390 transitions. [2022-07-22 18:38:35,840 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 390 transitions. Word has length 93 [2022-07-22 18:38:35,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:35,840 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 390 transitions. [2022-07-22 18:38:35,840 INFO L496 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) [2022-07-22 18:38:35,840 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 390 transitions. [2022-07-22 18:38:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 18:38:35,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:35,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:35,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 18:38:35,841 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:35,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:35,842 INFO L85 PathProgramCache]: Analyzing trace with hash 638646745, now seen corresponding path program 1 times [2022-07-22 18:38:35,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:35,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564016693] [2022-07-22 18:38:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:35,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:35,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564016693] [2022-07-22 18:38:35,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564016693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:35,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:35,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128509597] [2022-07-22 18:38:35,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:35,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:35,915 INFO L87 Difference]: Start difference. First operand 283 states and 390 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) [2022-07-22 18:38:36,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:36,163 INFO L93 Difference]: Finished difference Result 495 states and 703 transitions. [2022-07-22 18:38:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:36,163 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 [2022-07-22 18:38:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:36,164 INFO L225 Difference]: With dead ends: 495 [2022-07-22 18:38:36,164 INFO L226 Difference]: Without dead ends: 285 [2022-07-22 18:38:36,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:38:36,165 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 480 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:36,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 376 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:36,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-07-22 18:38:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2022-07-22 18:38:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.375886524822695) internal successors, (388), 282 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) [2022-07-22 18:38:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 388 transitions. [2022-07-22 18:38:36,362 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 388 transitions. Word has length 93 [2022-07-22 18:38:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:36,362 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 388 transitions. [2022-07-22 18:38:36,363 INFO L496 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) [2022-07-22 18:38:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 388 transitions. [2022-07-22 18:38:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 18:38:36,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:36,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:36,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 18:38:36,364 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:36,364 INFO L85 PathProgramCache]: Analyzing trace with hash 572153233, now seen corresponding path program 1 times [2022-07-22 18:38:36,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:36,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065092156] [2022-07-22 18:38:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:36,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:36,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065092156] [2022-07-22 18:38:36,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065092156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:36,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:36,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:36,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407485162] [2022-07-22 18:38:36,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:36,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:36,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:36,393 INFO L87 Difference]: Start difference. First operand 283 states and 388 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2022-07-22 18:38:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:36,680 INFO L93 Difference]: Finished difference Result 677 states and 964 transitions. [2022-07-22 18:38:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:36,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 [2022-07-22 18:38:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:36,682 INFO L225 Difference]: With dead ends: 677 [2022-07-22 18:38:36,682 INFO L226 Difference]: Without dead ends: 467 [2022-07-22 18:38:36,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:36,683 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 88 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:36,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 250 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-22 18:38:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 461. [2022-07-22 18:38:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.3891304347826088) internal successors, (639), 460 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 639 transitions. [2022-07-22 18:38:36,943 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 639 transitions. Word has length 93 [2022-07-22 18:38:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:36,943 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 639 transitions. [2022-07-22 18:38:36,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2022-07-22 18:38:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 639 transitions. [2022-07-22 18:38:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 18:38:36,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:36,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:36,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 18:38:36,945 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:36,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1651929496, now seen corresponding path program 1 times [2022-07-22 18:38:36,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:36,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978323758] [2022-07-22 18:38:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:36,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:36,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:36,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978323758] [2022-07-22 18:38:36,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978323758] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:36,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:36,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:36,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836588287] [2022-07-22 18:38:36,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:36,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:36,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:36,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:36,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:36,986 INFO L87 Difference]: Start difference. First operand 461 states and 639 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) [2022-07-22 18:38:37,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:37,765 INFO L93 Difference]: Finished difference Result 1340 states and 1907 transitions. [2022-07-22 18:38:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:37,765 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 [2022-07-22 18:38:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:37,768 INFO L225 Difference]: With dead ends: 1340 [2022-07-22 18:38:37,768 INFO L226 Difference]: Without dead ends: 1145 [2022-07-22 18:38:37,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:37,769 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 611 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:37,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 688 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:37,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2022-07-22 18:38:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 751. [2022-07-22 18:38:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 750 states have (on average 1.4093333333333333) internal successors, (1057), 750 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1057 transitions. [2022-07-22 18:38:38,243 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1057 transitions. Word has length 93 [2022-07-22 18:38:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:38,243 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 1057 transitions. [2022-07-22 18:38:38,243 INFO L496 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) [2022-07-22 18:38:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1057 transitions. [2022-07-22 18:38:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 18:38:38,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:38,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:38,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 18:38:38,245 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -767888488, now seen corresponding path program 1 times [2022-07-22 18:38:38,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:38,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026684724] [2022-07-22 18:38:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:38,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:38,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026684724] [2022-07-22 18:38:38,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026684724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:38,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:38,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:38,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040964917] [2022-07-22 18:38:38,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:38,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:38,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:38,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:38,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:38,347 INFO L87 Difference]: Start difference. First operand 751 states and 1057 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) [2022-07-22 18:38:39,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:39,253 INFO L93 Difference]: Finished difference Result 1533 states and 2186 transitions. [2022-07-22 18:38:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:38:39,254 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 [2022-07-22 18:38:39,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:39,257 INFO L225 Difference]: With dead ends: 1533 [2022-07-22 18:38:39,257 INFO L226 Difference]: Without dead ends: 1338 [2022-07-22 18:38:39,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:38:39,258 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 580 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:39,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 739 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-07-22 18:38:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 944. [2022-07-22 18:38:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 943 states have (on average 1.4167550371155886) internal successors, (1336), 943 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2022-07-22 18:38:39,851 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 93 [2022-07-22 18:38:39,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:39,851 INFO L495 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2022-07-22 18:38:39,851 INFO L496 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) [2022-07-22 18:38:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2022-07-22 18:38:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:38:39,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:39,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:39,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-22 18:38:39,852 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:39,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2122104904, now seen corresponding path program 1 times [2022-07-22 18:38:39,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:39,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564078651] [2022-07-22 18:38:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:39,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:39,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:39,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564078651] [2022-07-22 18:38:39,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564078651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:39,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:39,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:39,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671470360] [2022-07-22 18:38:39,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:39,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:39,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:39,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:39,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:39,880 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:41,045 INFO L93 Difference]: Finished difference Result 2614 states and 3726 transitions. [2022-07-22 18:38:41,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:41,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-22 18:38:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:41,050 INFO L225 Difference]: With dead ends: 2614 [2022-07-22 18:38:41,050 INFO L226 Difference]: Without dead ends: 1743 [2022-07-22 18:38:41,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:41,053 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 72 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:41,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2022-07-22 18:38:42,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1669. [2022-07-22 18:38:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.4142685851318946) internal successors, (2359), 1668 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2359 transitions. [2022-07-22 18:38:42,147 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2359 transitions. Word has length 94 [2022-07-22 18:38:42,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:42,147 INFO L495 AbstractCegarLoop]: Abstraction has 1669 states and 2359 transitions. [2022-07-22 18:38:42,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2359 transitions. [2022-07-22 18:38:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-22 18:38:42,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:42,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 18:38:42,149 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:42,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1022881993, now seen corresponding path program 1 times [2022-07-22 18:38:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:42,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195165896] [2022-07-22 18:38:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:42,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:42,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195165896] [2022-07-22 18:38:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195165896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:42,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638136365] [2022-07-22 18:38:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:42,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:42,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:42,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:42,205 INFO L87 Difference]: Start difference. First operand 1669 states and 2359 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) [2022-07-22 18:38:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:44,276 INFO L93 Difference]: Finished difference Result 4717 states and 6669 transitions. [2022-07-22 18:38:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:44,277 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 [2022-07-22 18:38:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:44,285 INFO L225 Difference]: With dead ends: 4717 [2022-07-22 18:38:44,285 INFO L226 Difference]: Without dead ends: 3121 [2022-07-22 18:38:44,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:44,288 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 65 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:44,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 331 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:44,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-07-22 18:38:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2975. [2022-07-22 18:38:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 1.402488231338265) internal successors, (4171), 2974 states have internal predecessors, (4171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 4171 transitions. [2022-07-22 18:38:46,259 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 4171 transitions. Word has length 95 [2022-07-22 18:38:46,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:46,260 INFO L495 AbstractCegarLoop]: Abstraction has 2975 states and 4171 transitions. [2022-07-22 18:38:46,260 INFO L496 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) [2022-07-22 18:38:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 4171 transitions. [2022-07-22 18:38:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:38:46,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:46,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:46,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 18:38:46,264 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:46,265 INFO L85 PathProgramCache]: Analyzing trace with hash -369091068, now seen corresponding path program 1 times [2022-07-22 18:38:46,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:46,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52852963] [2022-07-22 18:38:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:46,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:46,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:46,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52852963] [2022-07-22 18:38:46,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52852963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:46,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:46,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:38:46,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458088674] [2022-07-22 18:38:46,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:46,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:38:46,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:46,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:38:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:46,294 INFO L87 Difference]: Start difference. First operand 2975 states and 4171 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) [2022-07-22 18:38:50,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:38:50,065 INFO L93 Difference]: Finished difference Result 8491 states and 11853 transitions. [2022-07-22 18:38:50,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:38:50,066 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 [2022-07-22 18:38:50,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:38:50,079 INFO L225 Difference]: With dead ends: 8491 [2022-07-22 18:38:50,079 INFO L226 Difference]: Without dead ends: 5589 [2022-07-22 18:38:50,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:38:50,083 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 55 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:38:50,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 331 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:38:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5589 states. [2022-07-22 18:38:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5589 to 5299. [2022-07-22 18:38:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 1.3829747074367686) internal successors, (7327), 5298 states have internal predecessors, (7327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:38:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7327 transitions. [2022-07-22 18:38:53,656 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7327 transitions. Word has length 96 [2022-07-22 18:38:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:38:53,656 INFO L495 AbstractCegarLoop]: Abstraction has 5299 states and 7327 transitions. [2022-07-22 18:38:53,656 INFO L496 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) [2022-07-22 18:38:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7327 transitions. [2022-07-22 18:38:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 18:38:53,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:38:53,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:38:53,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-22 18:38:53,657 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:38:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:38:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash -553088427, now seen corresponding path program 1 times [2022-07-22 18:38:53,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:38:53,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201727730] [2022-07-22 18:38:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:38:53,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:38:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:38:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:38:53,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:38:53,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201727730] [2022-07-22 18:38:53,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201727730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:38:53,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:38:53,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:38:53,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119685095] [2022-07-22 18:38:53,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:38:53,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:38:53,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:38:53,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:38:53,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:38:53,709 INFO L87 Difference]: Start difference. First operand 5299 states and 7327 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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) [2022-07-22 18:39:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:00,223 INFO L93 Difference]: Finished difference Result 9355 states and 12847 transitions. [2022-07-22 18:39:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 18:39:00,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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 [2022-07-22 18:39:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:00,236 INFO L225 Difference]: With dead ends: 9355 [2022-07-22 18:39:00,236 INFO L226 Difference]: Without dead ends: 9353 [2022-07-22 18:39:00,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:39:00,237 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 256 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:39:00,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 836 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9353 states. [2022-07-22 18:39:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9353 to 5491. [2022-07-22 18:39:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 1.362295081967213) internal successors, (7479), 5490 states have internal predecessors, (7479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 7479 transitions. [2022-07-22 18:39:04,012 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 7479 transitions. Word has length 97 [2022-07-22 18:39:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:04,012 INFO L495 AbstractCegarLoop]: Abstraction has 5491 states and 7479 transitions. [2022-07-22 18:39:04,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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) [2022-07-22 18:39:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 7479 transitions. [2022-07-22 18:39:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 18:39:04,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:04,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:04,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-22 18:39:04,014 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:04,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash -404836723, now seen corresponding path program 1 times [2022-07-22 18:39:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:04,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857331315] [2022-07-22 18:39:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:04,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:04,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857331315] [2022-07-22 18:39:04,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857331315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:39:04,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:39:04,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 18:39:04,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145563591] [2022-07-22 18:39:04,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:39:04,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 18:39:04,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 18:39:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 18:39:04,058 INFO L87 Difference]: Start difference. First operand 5491 states and 7479 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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) [2022-07-22 18:39:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:10,348 INFO L93 Difference]: Finished difference Result 10333 states and 14140 transitions. [2022-07-22 18:39:10,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 18:39:10,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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 [2022-07-22 18:39:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:10,361 INFO L225 Difference]: With dead ends: 10333 [2022-07-22 18:39:10,361 INFO L226 Difference]: Without dead ends: 9123 [2022-07-22 18:39:10,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:39:10,363 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 638 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:39:10,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 750 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2022-07-22 18:39:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 6699. [2022-07-22 18:39:15,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 6698 states have (on average 1.3626455658405494) internal successors, (9127), 6698 states have internal predecessors, (9127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9127 transitions. [2022-07-22 18:39:15,109 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9127 transitions. Word has length 97 [2022-07-22 18:39:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:15,109 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9127 transitions. [2022-07-22 18:39:15,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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) [2022-07-22 18:39:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9127 transitions. [2022-07-22 18:39:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:39:15,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:15,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:15,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-22 18:39:15,111 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1477016020, now seen corresponding path program 1 times [2022-07-22 18:39:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:15,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992390872] [2022-07-22 18:39:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:15,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:15,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992390872] [2022-07-22 18:39:15,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992390872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:39:15,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:39:15,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:39:15,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322212654] [2022-07-22 18:39:15,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:39:15,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:39:15,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:39:15,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:15,145 INFO L87 Difference]: Start difference. First operand 6699 states and 9127 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:22,825 INFO L93 Difference]: Finished difference Result 17399 states and 23653 transitions. [2022-07-22 18:39:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:39:22,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-07-22 18:39:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:22,839 INFO L225 Difference]: With dead ends: 17399 [2022-07-22 18:39:22,839 INFO L226 Difference]: Without dead ends: 10773 [2022-07-22 18:39:22,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:22,844 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 76 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:39:22,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 334 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2022-07-22 18:39:30,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10067. [2022-07-22 18:39:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10067 states, 10066 states have (on average 1.3458176038148222) internal successors, (13547), 10066 states have internal predecessors, (13547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 13547 transitions. [2022-07-22 18:39:30,194 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 13547 transitions. Word has length 98 [2022-07-22 18:39:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:30,194 INFO L495 AbstractCegarLoop]: Abstraction has 10067 states and 13547 transitions. [2022-07-22 18:39:30,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 13547 transitions. [2022-07-22 18:39:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-22 18:39:30,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:30,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:30,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-22 18:39:30,197 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:30,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:30,197 INFO L85 PathProgramCache]: Analyzing trace with hash -659580428, now seen corresponding path program 1 times [2022-07-22 18:39:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203051186] [2022-07-22 18:39:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:30,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:30,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203051186] [2022-07-22 18:39:30,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203051186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:39:30,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:39:30,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 18:39:30,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363558955] [2022-07-22 18:39:30,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:39:30,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 18:39:30,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:30,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 18:39:30,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:30,229 INFO L87 Difference]: Start difference. First operand 10067 states and 13547 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:37,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:39:37,422 INFO L93 Difference]: Finished difference Result 20063 states and 27017 transitions. [2022-07-22 18:39:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 18:39:37,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-07-22 18:39:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:39:37,444 INFO L225 Difference]: With dead ends: 20063 [2022-07-22 18:39:37,445 INFO L226 Difference]: Without dead ends: 10069 [2022-07-22 18:39:37,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 18:39:37,453 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 68 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:39:37,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 308 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 18:39:37,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10069 states. [2022-07-22 18:39:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10069 to 10067. [2022-07-22 18:39:44,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10067 states, 10066 states have (on average 1.3283330021855753) internal successors, (13371), 10066 states have internal predecessors, (13371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10067 states to 10067 states and 13371 transitions. [2022-07-22 18:39:44,658 INFO L78 Accepts]: Start accepts. Automaton has 10067 states and 13371 transitions. Word has length 124 [2022-07-22 18:39:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:39:44,659 INFO L495 AbstractCegarLoop]: Abstraction has 10067 states and 13371 transitions. [2022-07-22 18:39:44,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 18:39:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 10067 states and 13371 transitions. [2022-07-22 18:39:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-22 18:39:44,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:39:44,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:39:44,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-22 18:39:44,661 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-07-22 18:39:44,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:39:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash -448021413, now seen corresponding path program 1 times [2022-07-22 18:39:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:39:44,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643993166] [2022-07-22 18:39:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:44,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:39:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:44,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:39:44,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643993166] [2022-07-22 18:39:44,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643993166] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 18:39:44,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188338071] [2022-07-22 18:39:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:39:44,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 18:39:44,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:39:44,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 18:39:44,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 18:39:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:39:44,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 18:39:44,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 18:39:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:45,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 18:39:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:39:46,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188338071] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 18:39:46,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 18:39:46,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-22 18:39:46,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306468680] [2022-07-22 18:39:46,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 18:39:46,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 18:39:46,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:39:46,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 18:39:46,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:39:46,615 INFO L87 Difference]: Start difference. First operand 10067 states and 13371 transitions. Second operand has 27 states, 27 states have (on average 10.851851851851851) internal successors, (293), 26 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)