./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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.3.1.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 7f3df0b4eae1d513bdc1ba52a53496aa05ff593bd28211e99c6fbfee672a86c9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:53:40,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:53:40,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:53:40,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:53:40,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:53:40,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:53:40,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:53:40,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:53:40,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:53:40,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:53:40,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:53:40,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:53:40,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:53:40,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:53:40,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:53:40,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:53:40,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:53:40,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:53:40,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:53:40,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:53:40,495 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:53:40,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:53:40,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:53:40,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:53:40,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:53:40,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:53:40,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:53:40,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:53:40,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:53:40,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:53:40,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:53:40,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:53:40,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:53:40,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:53:40,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:53:40,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:53:40,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:53:40,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:53:40,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:53:40,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:53:40,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:53:40,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:53:40,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:53:40,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:53:40,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:53:40,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:53:40,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:53:40,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:53:40,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:53:40,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:53:40,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:53:40,555 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:53:40,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:53:40,556 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:53:40,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:53:40,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:53:40,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:53:40,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:53:40,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:53:40,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:53:40,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:53:40,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:53:40,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:53:40,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:53:40,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:53:40,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:53:40,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:53:40,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:53:40,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:53:40,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:53:40,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:53:40,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:53:40,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:53:40,570 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:53:40,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:53:40,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:53:40,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f3df0b4eae1d513bdc1ba52a53496aa05ff593bd28211e99c6fbfee672a86c9 [2022-07-21 05:53:40,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:53:40,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:53:40,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:53:40,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:53:40,904 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:53:40,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:53:40,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2da58c1/eb4105f5edee4fa98c0f34942f38bc63/FLAG1c029c24f [2022-07-21 05:53:41,477 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:53:41,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:53:41,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2da58c1/eb4105f5edee4fa98c0f34942f38bc63/FLAG1c029c24f [2022-07-21 05:53:41,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee2da58c1/eb4105f5edee4fa98c0f34942f38bc63 [2022-07-21 05:53:41,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:53:41,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:53:41,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:53:41,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:53:41,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:53:41,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:53:41" (1/1) ... [2022-07-21 05:53:41,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a673dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:41, skipping insertion in model container [2022-07-21 05:53:41,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:53:41" (1/1) ... [2022-07-21 05:53:41,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:53:41,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:53:42,129 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[5819,5832] [2022-07-21 05:53:42,159 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[8492,8505] [2022-07-21 05:53:42,185 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11299,11312] [2022-07-21 05:53:42,208 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[13874,13887] [2022-07-21 05:53:42,236 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16880,16893] [2022-07-21 05:53:42,249 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[19470,19483] [2022-07-21 05:53:42,268 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[22230,22243] [2022-07-21 05:53:42,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:53:42,326 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:53:42,367 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[5819,5832] [2022-07-21 05:53:42,382 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[8492,8505] [2022-07-21 05:53:42,389 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11299,11312] [2022-07-21 05:53:42,396 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[13874,13887] [2022-07-21 05:53:42,410 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16880,16893] [2022-07-21 05:53:42,418 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[19470,19483] [2022-07-21 05:53:42,435 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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[22230,22243] [2022-07-21 05:53:42,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:53:42,488 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:53:42,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42 WrapperNode [2022-07-21 05:53:42,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:53:42,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:53:42,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:53:42,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:53:42,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,557 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1247 [2022-07-21 05:53:42,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:53:42,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:53:42,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:53:42,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:53:42,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:53:42,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:53:42,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:53:42,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:53:42,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (1/1) ... [2022-07-21 05:53:42,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:53:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:53:42,643 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) [2022-07-21 05:53:42,657 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 [2022-07-21 05:53:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:53:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:53:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:53:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:53:42,781 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:53:42,782 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:53:43,530 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:53:43,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:53:43,546 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:53:43,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:53:43 BoogieIcfgContainer [2022-07-21 05:53:43,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:53:43,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:53:43,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:53:43,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:53:43,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:53:41" (1/3) ... [2022-07-21 05:53:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6812fdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:53:43, skipping insertion in model container [2022-07-21 05:53:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:42" (2/3) ... [2022-07-21 05:53:43,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6812fdef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:53:43, skipping insertion in model container [2022-07-21 05:53:43,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:53:43" (3/3) ... [2022-07-21 05:53:43,557 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 05:53:43,569 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:53:43,569 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-07-21 05:53:43,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:53:43,641 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@624d56f1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@456b62c1 [2022-07-21 05:53:43,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-21 05:53:43,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 266 states, 258 states have (on average 1.8294573643410852) internal successors, (472), 265 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-21 05:53:43,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:43,675 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] [2022-07-21 05:53:43,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:43,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:43,682 INFO L85 PathProgramCache]: Analyzing trace with hash -102713619, now seen corresponding path program 1 times [2022-07-21 05:53:43,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:43,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411097198] [2022-07-21 05:53:43,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:44,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:44,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:44,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411097198] [2022-07-21 05:53:44,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411097198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:44,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:44,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:44,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887597973] [2022-07-21 05:53:44,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:44,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:44,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:44,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:44,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:44,079 INFO L87 Difference]: Start difference. First operand has 266 states, 258 states have (on average 1.8294573643410852) internal successors, (472), 265 states have internal predecessors, (472), 0 states have call successors, (0), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:44,297 INFO L93 Difference]: Finished difference Result 343 states and 586 transitions. [2022-07-21 05:53:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-07-21 05:53:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:44,314 INFO L225 Difference]: With dead ends: 343 [2022-07-21 05:53:44,314 INFO L226 Difference]: Without dead ends: 193 [2022-07-21 05:53:44,319 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 [2022-07-21 05:53:44,322 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 928 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:44,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 249 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:44,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-21 05:53:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2022-07-21 05:53:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 186 states have (on average 1.2795698924731183) internal successors, (238), 192 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 238 transitions. [2022-07-21 05:53:44,385 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 238 transitions. Word has length 47 [2022-07-21 05:53:44,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:44,386 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 238 transitions. [2022-07-21 05:53:44,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,386 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 238 transitions. [2022-07-21 05:53:44,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-21 05:53:44,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:44,388 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] [2022-07-21 05:53:44,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:53:44,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1933719334, now seen corresponding path program 1 times [2022-07-21 05:53:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:44,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142162849] [2022-07-21 05:53:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:44,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142162849] [2022-07-21 05:53:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142162849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:44,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:44,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490326001] [2022-07-21 05:53:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:44,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:44,515 INFO L87 Difference]: Start difference. First operand 193 states and 238 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:44,638 INFO L93 Difference]: Finished difference Result 279 states and 353 transitions. [2022-07-21 05:53:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:44,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-07-21 05:53:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:44,640 INFO L225 Difference]: With dead ends: 279 [2022-07-21 05:53:44,641 INFO L226 Difference]: Without dead ends: 177 [2022-07-21 05:53:44,641 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 [2022-07-21 05:53:44,642 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 592 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:44,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 139 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-21 05:53:44,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-07-21 05:53:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 170 states have (on average 1.2882352941176471) internal successors, (219), 176 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 219 transitions. [2022-07-21 05:53:44,656 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 219 transitions. Word has length 47 [2022-07-21 05:53:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:44,657 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 219 transitions. [2022-07-21 05:53:44,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 219 transitions. [2022-07-21 05:53:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-21 05:53:44,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:44,659 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] [2022-07-21 05:53:44,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:53:44,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash 458596476, now seen corresponding path program 1 times [2022-07-21 05:53:44,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:44,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065111332] [2022-07-21 05:53:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:44,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:44,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065111332] [2022-07-21 05:53:44,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065111332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:44,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:44,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:44,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071492021] [2022-07-21 05:53:44,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:44,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:44,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:44,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:44,739 INFO L87 Difference]: Start difference. First operand 177 states and 219 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:44,924 INFO L93 Difference]: Finished difference Result 339 states and 435 transitions. [2022-07-21 05:53:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-07-21 05:53:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:44,927 INFO L225 Difference]: With dead ends: 339 [2022-07-21 05:53:44,927 INFO L226 Difference]: Without dead ends: 239 [2022-07-21 05:53:44,930 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 [2022-07-21 05:53:44,932 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 760 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:44,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 190 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:44,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-07-21 05:53:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 215. [2022-07-21 05:53:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 208 states have (on average 1.3509615384615385) internal successors, (281), 214 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 281 transitions. [2022-07-21 05:53:44,963 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 281 transitions. Word has length 47 [2022-07-21 05:53:44,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:44,964 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 281 transitions. [2022-07-21 05:53:44,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 281 transitions. [2022-07-21 05:53:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:53:44,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:44,969 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] [2022-07-21 05:53:44,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:53:44,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1498085814, now seen corresponding path program 1 times [2022-07-21 05:53:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:44,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259062662] [2022-07-21 05:53:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:44,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:45,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:45,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259062662] [2022-07-21 05:53:45,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259062662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:45,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:45,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:45,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286368680] [2022-07-21 05:53:45,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:45,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:45,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:45,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:45,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:45,148 INFO L87 Difference]: Start difference. First operand 215 states and 281 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:45,659 INFO L93 Difference]: Finished difference Result 530 states and 734 transitions. [2022-07-21 05:53:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:53:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-21 05:53:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:45,662 INFO L225 Difference]: With dead ends: 530 [2022-07-21 05:53:45,662 INFO L226 Difference]: Without dead ends: 525 [2022-07-21 05:53:45,662 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 [2022-07-21 05:53:45,669 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1209 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:45,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 613 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-21 05:53:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 215. [2022-07-21 05:53:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 208 states have (on average 1.3461538461538463) internal successors, (280), 214 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 280 transitions. [2022-07-21 05:53:45,690 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 280 transitions. Word has length 48 [2022-07-21 05:53:45,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:45,691 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 280 transitions. [2022-07-21 05:53:45,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:45,691 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 280 transitions. [2022-07-21 05:53:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:53:45,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:45,692 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] [2022-07-21 05:53:45,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:53:45,692 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:45,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:45,693 INFO L85 PathProgramCache]: Analyzing trace with hash 267052195, now seen corresponding path program 1 times [2022-07-21 05:53:45,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:45,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107152400] [2022-07-21 05:53:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:45,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:45,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:45,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107152400] [2022-07-21 05:53:45,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107152400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:45,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:45,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:45,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933428424] [2022-07-21 05:53:45,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:45,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:45,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:45,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:45,833 INFO L87 Difference]: Start difference. First operand 215 states and 280 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:46,348 INFO L93 Difference]: Finished difference Result 534 states and 737 transitions. [2022-07-21 05:53:46,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:53:46,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-21 05:53:46,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:46,351 INFO L225 Difference]: With dead ends: 534 [2022-07-21 05:53:46,353 INFO L226 Difference]: Without dead ends: 433 [2022-07-21 05:53:46,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:53:46,355 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1028 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:46,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 818 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-07-21 05:53:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 215. [2022-07-21 05:53:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 208 states have (on average 1.3413461538461537) internal successors, (279), 214 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 279 transitions. [2022-07-21 05:53:46,380 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 279 transitions. Word has length 48 [2022-07-21 05:53:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:46,384 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 279 transitions. [2022-07-21 05:53:46,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 279 transitions. [2022-07-21 05:53:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:53:46,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:46,387 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] [2022-07-21 05:53:46,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:53:46,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:46,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1788008380, now seen corresponding path program 1 times [2022-07-21 05:53:46,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:46,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803453223] [2022-07-21 05:53:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:46,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:46,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803453223] [2022-07-21 05:53:46,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803453223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:46,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:46,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:53:46,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755209453] [2022-07-21 05:53:46,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:46,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:53:46,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:46,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:53:46,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:53:46,513 INFO L87 Difference]: Start difference. First operand 215 states and 279 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:46,742 INFO L93 Difference]: Finished difference Result 459 states and 614 transitions. [2022-07-21 05:53:46,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:53:46,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-07-21 05:53:46,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:46,744 INFO L225 Difference]: With dead ends: 459 [2022-07-21 05:53:46,744 INFO L226 Difference]: Without dead ends: 335 [2022-07-21 05:53:46,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:53:46,745 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1180 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:46,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 302 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:46,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-07-21 05:53:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 215. [2022-07-21 05:53:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 208 states have (on average 1.3365384615384615) internal successors, (278), 214 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 278 transitions. [2022-07-21 05:53:46,766 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 278 transitions. Word has length 48 [2022-07-21 05:53:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:46,767 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 278 transitions. [2022-07-21 05:53:46,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 278 transitions. [2022-07-21 05:53:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:46,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:46,768 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] [2022-07-21 05:53:46,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:53:46,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:46,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1932349207, now seen corresponding path program 1 times [2022-07-21 05:53:46,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:46,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270446198] [2022-07-21 05:53:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:46,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:47,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:47,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270446198] [2022-07-21 05:53:47,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270446198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:47,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:47,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 05:53:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476363387] [2022-07-21 05:53:47,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:47,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 05:53:47,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:47,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 05:53:47,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:53:47,255 INFO L87 Difference]: Start difference. First operand 215 states and 278 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:48,777 INFO L93 Difference]: Finished difference Result 403 states and 529 transitions. [2022-07-21 05:53:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 05:53:48,778 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-07-21 05:53:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:48,780 INFO L225 Difference]: With dead ends: 403 [2022-07-21 05:53:48,780 INFO L226 Difference]: Without dead ends: 399 [2022-07-21 05:53:48,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2022-07-21 05:53:48,781 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 993 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 2350 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 05:53:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-07-21 05:53:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 219. [2022-07-21 05:53:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 212 states have (on average 1.3396226415094339) internal successors, (284), 218 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2022-07-21 05:53:48,807 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 50 [2022-07-21 05:53:48,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:48,807 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2022-07-21 05:53:48,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:48,808 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2022-07-21 05:53:48,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:48,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:48,808 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] [2022-07-21 05:53:48,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:53:48,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1779763646, now seen corresponding path program 1 times [2022-07-21 05:53:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:48,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797719105] [2022-07-21 05:53:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:49,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:49,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797719105] [2022-07-21 05:53:49,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797719105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:49,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:49,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 05:53:49,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057516009] [2022-07-21 05:53:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:49,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 05:53:49,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 05:53:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:53:49,262 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:50,599 INFO L93 Difference]: Finished difference Result 472 states and 643 transitions. [2022-07-21 05:53:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 05:53:50,600 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-07-21 05:53:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:50,604 INFO L225 Difference]: With dead ends: 472 [2022-07-21 05:53:50,604 INFO L226 Difference]: Without dead ends: 384 [2022-07-21 05:53:50,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 05:53:50,605 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 924 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 2085 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:53:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-07-21 05:53:50,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 225. [2022-07-21 05:53:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.3394495412844036) internal successors, (292), 224 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 292 transitions. [2022-07-21 05:53:50,631 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 292 transitions. Word has length 50 [2022-07-21 05:53:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:50,632 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 292 transitions. [2022-07-21 05:53:50,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 292 transitions. [2022-07-21 05:53:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:50,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:50,633 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] [2022-07-21 05:53:50,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:53:50,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:50,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1793833253, now seen corresponding path program 1 times [2022-07-21 05:53:50,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:50,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58567887] [2022-07-21 05:53:50,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:51,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:51,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58567887] [2022-07-21 05:53:51,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58567887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:51,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:51,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 05:53:51,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105477916] [2022-07-21 05:53:51,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:51,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 05:53:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 05:53:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:53:51,074 INFO L87 Difference]: Start difference. First operand 225 states and 292 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:52,576 INFO L93 Difference]: Finished difference Result 589 states and 823 transitions. [2022-07-21 05:53:52,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-21 05:53:52,577 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-07-21 05:53:52,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:52,579 INFO L225 Difference]: With dead ends: 589 [2022-07-21 05:53:52,579 INFO L226 Difference]: Without dead ends: 583 [2022-07-21 05:53:52,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-07-21 05:53:52,580 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1898 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:52,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 2156 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:53:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-07-21 05:53:52,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 225. [2022-07-21 05:53:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.334862385321101) internal successors, (291), 224 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 291 transitions. [2022-07-21 05:53:52,607 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 291 transitions. Word has length 50 [2022-07-21 05:53:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:52,607 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 291 transitions. [2022-07-21 05:53:52,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 291 transitions. [2022-07-21 05:53:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:52,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:52,608 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] [2022-07-21 05:53:52,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:53:52,609 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1827600366, now seen corresponding path program 1 times [2022-07-21 05:53:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:52,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084120417] [2022-07-21 05:53:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:52,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:52,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084120417] [2022-07-21 05:53:52,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084120417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:52,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:52,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:52,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977734633] [2022-07-21 05:53:52,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:52,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:52,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:52,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:52,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:52,860 INFO L87 Difference]: Start difference. First operand 225 states and 291 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:53,422 INFO L93 Difference]: Finished difference Result 444 states and 618 transitions. [2022-07-21 05:53:53,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:53:53,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-07-21 05:53:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:53,424 INFO L225 Difference]: With dead ends: 444 [2022-07-21 05:53:53,424 INFO L226 Difference]: Without dead ends: 349 [2022-07-21 05:53:53,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:53:53,426 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 974 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:53,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1047 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-07-21 05:53:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 214. [2022-07-21 05:53:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.3413461538461537) internal successors, (279), 213 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 279 transitions. [2022-07-21 05:53:53,459 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 279 transitions. Word has length 50 [2022-07-21 05:53:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:53,459 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 279 transitions. [2022-07-21 05:53:53,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 279 transitions. [2022-07-21 05:53:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 05:53:53,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:53,461 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] [2022-07-21 05:53:53,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:53:53,461 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:53,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:53,462 INFO L85 PathProgramCache]: Analyzing trace with hash -767196360, now seen corresponding path program 1 times [2022-07-21 05:53:53,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:53,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370911650] [2022-07-21 05:53:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:53,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:53,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:53,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370911650] [2022-07-21 05:53:53,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370911650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:53,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:53,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094133083] [2022-07-21 05:53:53,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:53,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:53,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:53,553 INFO L87 Difference]: Start difference. First operand 214 states and 279 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:53,878 INFO L93 Difference]: Finished difference Result 349 states and 461 transitions. [2022-07-21 05:53:53,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:53:53,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-07-21 05:53:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:53,881 INFO L225 Difference]: With dead ends: 349 [2022-07-21 05:53:53,881 INFO L226 Difference]: Without dead ends: 342 [2022-07-21 05:53:53,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:53:53,882 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 949 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:53,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 471 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-21 05:53:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 214. [2022-07-21 05:53:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.3317307692307692) internal successors, (277), 213 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 277 transitions. [2022-07-21 05:53:53,923 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 277 transitions. Word has length 51 [2022-07-21 05:53:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:53,924 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 277 transitions. [2022-07-21 05:53:53,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 277 transitions. [2022-07-21 05:53:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 05:53:53,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:53,925 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] [2022-07-21 05:53:53,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:53:53,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:53,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1195663953, now seen corresponding path program 1 times [2022-07-21 05:53:53,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:53,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782654379] [2022-07-21 05:53:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:53,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:54,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:54,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782654379] [2022-07-21 05:53:54,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782654379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:54,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:54,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 05:53:54,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989165921] [2022-07-21 05:53:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:54,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:53:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:53:54,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:53:54,083 INFO L87 Difference]: Start difference. First operand 214 states and 277 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:54,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:54,716 INFO L93 Difference]: Finished difference Result 547 states and 759 transitions. [2022-07-21 05:53:54,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 05:53:54,717 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-07-21 05:53:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:54,718 INFO L225 Difference]: With dead ends: 547 [2022-07-21 05:53:54,718 INFO L226 Difference]: Without dead ends: 433 [2022-07-21 05:53:54,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-07-21 05:53:54,720 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1277 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:54,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 752 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-07-21 05:53:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 214. [2022-07-21 05:53:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.3221153846153846) internal successors, (275), 213 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 275 transitions. [2022-07-21 05:53:54,755 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 275 transitions. Word has length 51 [2022-07-21 05:53:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:54,756 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 275 transitions. [2022-07-21 05:53:54,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 275 transitions. [2022-07-21 05:53:54,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 05:53:54,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:54,756 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] [2022-07-21 05:53:54,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:53:54,757 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:54,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:54,758 INFO L85 PathProgramCache]: Analyzing trace with hash 72941877, now seen corresponding path program 1 times [2022-07-21 05:53:54,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:54,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234880174] [2022-07-21 05:53:54,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:54,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:54,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234880174] [2022-07-21 05:53:54,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234880174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:54,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:54,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398851765] [2022-07-21 05:53:54,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:54,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:54,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:54,999 INFO L87 Difference]: Start difference. First operand 214 states and 275 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:55,404 INFO L93 Difference]: Finished difference Result 457 states and 632 transitions. [2022-07-21 05:53:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:53:55,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-07-21 05:53:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:55,409 INFO L225 Difference]: With dead ends: 457 [2022-07-21 05:53:55,409 INFO L226 Difference]: Without dead ends: 437 [2022-07-21 05:53:55,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:53:55,410 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 854 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:55,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1477 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-07-21 05:53:55,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 194. [2022-07-21 05:53:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.3263157894736841) internal successors, (252), 193 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:55,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 252 transitions. [2022-07-21 05:53:55,442 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 252 transitions. Word has length 51 [2022-07-21 05:53:55,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:55,443 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 252 transitions. [2022-07-21 05:53:55,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 252 transitions. [2022-07-21 05:53:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 05:53:55,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:55,443 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] [2022-07-21 05:53:55,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:53:55,444 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:55,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:55,444 INFO L85 PathProgramCache]: Analyzing trace with hash -314877430, now seen corresponding path program 1 times [2022-07-21 05:53:55,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:55,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816906714] [2022-07-21 05:53:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:55,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816906714] [2022-07-21 05:53:55,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816906714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:55,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:55,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:53:55,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780986129] [2022-07-21 05:53:55,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:55,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:55,581 INFO L87 Difference]: Start difference. First operand 194 states and 252 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:56,754 INFO L93 Difference]: Finished difference Result 980 states and 1396 transitions. [2022-07-21 05:53:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 05:53:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-07-21 05:53:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:56,759 INFO L225 Difference]: With dead ends: 980 [2022-07-21 05:53:56,759 INFO L226 Difference]: Without dead ends: 973 [2022-07-21 05:53:56,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 05:53:56,761 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1873 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:56,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 771 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:53:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2022-07-21 05:53:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 194. [2022-07-21 05:53:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.3210526315789475) internal successors, (251), 193 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 251 transitions. [2022-07-21 05:53:56,808 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 251 transitions. Word has length 51 [2022-07-21 05:53:56,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:56,809 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 251 transitions. [2022-07-21 05:53:56,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 251 transitions. [2022-07-21 05:53:56,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-21 05:53:56,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:56,810 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] [2022-07-21 05:53:56,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:53:56,810 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:56,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:56,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1266894549, now seen corresponding path program 1 times [2022-07-21 05:53:56,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:56,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073826159] [2022-07-21 05:53:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:56,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:57,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:57,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073826159] [2022-07-21 05:53:57,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073826159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:57,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:57,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 05:53:57,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459342813] [2022-07-21 05:53:57,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:57,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 05:53:57,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:57,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 05:53:57,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:53:57,132 INFO L87 Difference]: Start difference. First operand 194 states and 251 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:57,874 INFO L93 Difference]: Finished difference Result 418 states and 565 transitions. [2022-07-21 05:53:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 05:53:57,875 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-07-21 05:53:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:57,876 INFO L225 Difference]: With dead ends: 418 [2022-07-21 05:53:57,876 INFO L226 Difference]: Without dead ends: 330 [2022-07-21 05:53:57,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2022-07-21 05:53:57,878 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 460 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:57,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1771 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-21 05:53:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 188. [2022-07-21 05:53:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 185 states have (on average 1.3135135135135134) internal successors, (243), 187 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:57,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 243 transitions. [2022-07-21 05:53:57,939 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 243 transitions. Word has length 51 [2022-07-21 05:53:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:57,939 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 243 transitions. [2022-07-21 05:53:57,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 243 transitions. [2022-07-21 05:53:57,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:53:57,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:57,940 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] [2022-07-21 05:53:57,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:53:57,940 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:57,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash 966049747, now seen corresponding path program 1 times [2022-07-21 05:53:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:57,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156100543] [2022-07-21 05:53:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:58,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:58,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156100543] [2022-07-21 05:53:58,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156100543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:58,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:58,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:58,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509534187] [2022-07-21 05:53:58,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:58,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:58,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:58,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:58,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:58,030 INFO L87 Difference]: Start difference. First operand 188 states and 243 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:58,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:58,389 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2022-07-21 05:53:58,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:53:58,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-07-21 05:53:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:58,391 INFO L225 Difference]: With dead ends: 325 [2022-07-21 05:53:58,391 INFO L226 Difference]: Without dead ends: 318 [2022-07-21 05:53:58,392 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 [2022-07-21 05:53:58,394 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 460 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:58,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 595 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-07-21 05:53:58,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 184. [2022-07-21 05:53:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 181 states have (on average 1.3149171270718232) internal successors, (238), 183 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2022-07-21 05:53:58,447 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 238 transitions. Word has length 52 [2022-07-21 05:53:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:58,447 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 238 transitions. [2022-07-21 05:53:58,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 238 transitions. [2022-07-21 05:53:58,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 05:53:58,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:58,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:53:58,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 05:53:58,449 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:58,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:58,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1837589620, now seen corresponding path program 1 times [2022-07-21 05:53:58,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:58,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160849267] [2022-07-21 05:53:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:58,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:58,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:58,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160849267] [2022-07-21 05:53:58,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160849267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:58,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:58,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 05:53:58,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766767590] [2022-07-21 05:53:58,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:58,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 05:53:58,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 05:53:58,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-21 05:53:58,767 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:59,706 INFO L93 Difference]: Finished difference Result 400 states and 543 transitions. [2022-07-21 05:53:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 05:53:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-07-21 05:53:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:59,708 INFO L225 Difference]: With dead ends: 400 [2022-07-21 05:53:59,708 INFO L226 Difference]: Without dead ends: 394 [2022-07-21 05:53:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 05:53:59,709 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 692 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:59,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 2043 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 05:53:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-07-21 05:53:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 190. [2022-07-21 05:53:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 187 states have (on average 1.3155080213903743) internal successors, (246), 189 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 246 transitions. [2022-07-21 05:53:59,753 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 246 transitions. Word has length 53 [2022-07-21 05:53:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:59,753 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 246 transitions. [2022-07-21 05:53:59,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 246 transitions. [2022-07-21 05:53:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 05:53:59,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:59,754 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] [2022-07-21 05:53:59,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 05:53:59,754 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:59,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 202849221, now seen corresponding path program 1 times [2022-07-21 05:53:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:59,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72135658] [2022-07-21 05:53:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:59,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:59,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72135658] [2022-07-21 05:53:59,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72135658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:59,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:59,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:53:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085122822] [2022-07-21 05:53:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:59,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:53:59,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:53:59,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:53:59,935 INFO L87 Difference]: Start difference. First operand 190 states and 246 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:00,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:00,497 INFO L93 Difference]: Finished difference Result 462 states and 649 transitions. [2022-07-21 05:54:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:54:00,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-07-21 05:54:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:00,499 INFO L225 Difference]: With dead ends: 462 [2022-07-21 05:54:00,499 INFO L226 Difference]: Without dead ends: 444 [2022-07-21 05:54:00,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-21 05:54:00,500 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 768 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:00,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 877 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:54:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-07-21 05:54:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 172. [2022-07-21 05:54:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 171 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) [2022-07-21 05:54:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 226 transitions. [2022-07-21 05:54:00,558 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 226 transitions. Word has length 53 [2022-07-21 05:54:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:00,558 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 226 transitions. [2022-07-21 05:54:00,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 226 transitions. [2022-07-21 05:54:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 05:54:00,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:00,559 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] [2022-07-21 05:54:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 05:54:00,560 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash 576756188, now seen corresponding path program 1 times [2022-07-21 05:54:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:00,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704737873] [2022-07-21 05:54:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:00,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:00,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704737873] [2022-07-21 05:54:00,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704737873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:00,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:00,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:54:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439286296] [2022-07-21 05:54:00,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:00,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:54:00,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:00,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:54:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:54:00,795 INFO L87 Difference]: Start difference. First operand 172 states and 226 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:01,401 INFO L93 Difference]: Finished difference Result 472 states and 661 transitions. [2022-07-21 05:54:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 05:54:01,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-07-21 05:54:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:01,407 INFO L225 Difference]: With dead ends: 472 [2022-07-21 05:54:01,407 INFO L226 Difference]: Without dead ends: 466 [2022-07-21 05:54:01,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:54:01,408 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 374 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:01,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1658 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:54:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-07-21 05:54:01,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 160. [2022-07-21 05:54:01,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 159 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 211 transitions. [2022-07-21 05:54:01,456 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 211 transitions. Word has length 54 [2022-07-21 05:54:01,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:01,456 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 211 transitions. [2022-07-21 05:54:01,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 211 transitions. [2022-07-21 05:54:01,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 05:54:01,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:01,457 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] [2022-07-21 05:54:01,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 05:54:01,457 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:01,458 INFO L85 PathProgramCache]: Analyzing trace with hash 415256315, now seen corresponding path program 1 times [2022-07-21 05:54:01,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:01,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002521145] [2022-07-21 05:54:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:01,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:01,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002521145] [2022-07-21 05:54:01,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002521145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:01,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:01,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:01,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340407602] [2022-07-21 05:54:01,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:01,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:01,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:01,501 INFO L87 Difference]: Start difference. First operand 160 states and 211 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:01,833 INFO L93 Difference]: Finished difference Result 664 states and 979 transitions. [2022-07-21 05:54:01,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:54:01,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-21 05:54:01,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:01,836 INFO L225 Difference]: With dead ends: 664 [2022-07-21 05:54:01,836 INFO L226 Difference]: Without dead ends: 580 [2022-07-21 05:54:01,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:54:01,838 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 492 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:01,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 506 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:01,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-07-21 05:54:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 242. [2022-07-21 05:54:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.3858921161825726) internal successors, (334), 241 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 334 transitions. [2022-07-21 05:54:01,964 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 334 transitions. Word has length 71 [2022-07-21 05:54:01,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:01,964 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 334 transitions. [2022-07-21 05:54:01,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 334 transitions. [2022-07-21 05:54:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:54:01,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:01,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:01,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 05:54:01,966 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:01,966 INFO L85 PathProgramCache]: Analyzing trace with hash -237734748, now seen corresponding path program 1 times [2022-07-21 05:54:01,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:01,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732779150] [2022-07-21 05:54:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:01,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:02,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:02,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732779150] [2022-07-21 05:54:02,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732779150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:02,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:02,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910022095] [2022-07-21 05:54:02,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:02,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:02,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:02,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:02,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:02,012 INFO L87 Difference]: Start difference. First operand 242 states and 334 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:02,339 INFO L93 Difference]: Finished difference Result 824 states and 1211 transitions. [2022-07-21 05:54:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:02,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:54:02,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:02,342 INFO L225 Difference]: With dead ends: 824 [2022-07-21 05:54:02,342 INFO L226 Difference]: Without dead ends: 658 [2022-07-21 05:54:02,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:54:02,343 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 292 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:02,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 438 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-21 05:54:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 406. [2022-07-21 05:54:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4370370370370371) internal successors, (582), 405 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 582 transitions. [2022-07-21 05:54:02,544 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 582 transitions. Word has length 73 [2022-07-21 05:54:02,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:02,545 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 582 transitions. [2022-07-21 05:54:02,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 582 transitions. [2022-07-21 05:54:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:54:02,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:02,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:02,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 05:54:02,546 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:02,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:02,546 INFO L85 PathProgramCache]: Analyzing trace with hash -871401261, now seen corresponding path program 1 times [2022-07-21 05:54:02,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:02,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813016546] [2022-07-21 05:54:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:02,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:02,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:02,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813016546] [2022-07-21 05:54:02,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813016546] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:02,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:02,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:02,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139369228] [2022-07-21 05:54:02,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:02,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:02,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:02,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:02,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:02,580 INFO L87 Difference]: Start difference. First operand 406 states and 582 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:02,788 INFO L93 Difference]: Finished difference Result 738 states and 1082 transitions. [2022-07-21 05:54:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:02,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:54:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:02,790 INFO L225 Difference]: With dead ends: 738 [2022-07-21 05:54:02,790 INFO L226 Difference]: Without dead ends: 408 [2022-07-21 05:54:02,791 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 [2022-07-21 05:54:02,791 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 52 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:02,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 201 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:02,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-07-21 05:54:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 406. [2022-07-21 05:54:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.4271604938271605) internal successors, (578), 405 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 578 transitions. [2022-07-21 05:54:02,997 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 578 transitions. Word has length 73 [2022-07-21 05:54:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:02,997 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 578 transitions. [2022-07-21 05:54:02,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:02,997 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 578 transitions. [2022-07-21 05:54:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:54:02,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:02,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:02,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 05:54:02,999 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:02,999 INFO L85 PathProgramCache]: Analyzing trace with hash -937894773, now seen corresponding path program 1 times [2022-07-21 05:54:02,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:02,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405409481] [2022-07-21 05:54:02,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:03,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:03,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:03,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405409481] [2022-07-21 05:54:03,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405409481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:03,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:03,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:03,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230075514] [2022-07-21 05:54:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:03,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:03,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:03,034 INFO L87 Difference]: Start difference. First operand 406 states and 578 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:03,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:03,386 INFO L93 Difference]: Finished difference Result 1014 states and 1480 transitions. [2022-07-21 05:54:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:03,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:54:03,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:03,388 INFO L225 Difference]: With dead ends: 1014 [2022-07-21 05:54:03,389 INFO L226 Difference]: Without dead ends: 684 [2022-07-21 05:54:03,389 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 [2022-07-21 05:54:03,389 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 67 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 197 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 [2022-07-21 05:54:03,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 197 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:03,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-07-21 05:54:03,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 674. [2022-07-21 05:54:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 1.4205052005943537) internal successors, (956), 673 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 956 transitions. [2022-07-21 05:54:03,699 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 956 transitions. Word has length 73 [2022-07-21 05:54:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:03,699 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 956 transitions. [2022-07-21 05:54:03,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 956 transitions. [2022-07-21 05:54:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:54:03,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:03,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:03,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 05:54:03,701 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash -852412764, now seen corresponding path program 1 times [2022-07-21 05:54:03,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:03,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314464535] [2022-07-21 05:54:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:03,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:03,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:03,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314464535] [2022-07-21 05:54:03,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314464535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:03,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:03,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:03,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015940988] [2022-07-21 05:54:03,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:03,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:03,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:03,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:03,754 INFO L87 Difference]: Start difference. First operand 674 states and 956 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:04,380 INFO L93 Difference]: Finished difference Result 1726 states and 2490 transitions. [2022-07-21 05:54:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:04,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 05:54:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:04,385 INFO L225 Difference]: With dead ends: 1726 [2022-07-21 05:54:04,385 INFO L226 Difference]: Without dead ends: 1426 [2022-07-21 05:54:04,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:54:04,386 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 295 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:04,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 438 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:04,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-07-21 05:54:04,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1122. [2022-07-21 05:54:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.4326494201605708) internal successors, (1606), 1121 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1606 transitions. [2022-07-21 05:54:04,875 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1606 transitions. Word has length 73 [2022-07-21 05:54:04,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:04,875 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 1606 transitions. [2022-07-21 05:54:04,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:04,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1606 transitions. [2022-07-21 05:54:04,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:54:04,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:04,876 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] [2022-07-21 05:54:04,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 05:54:04,876 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:04,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:04,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1459706699, now seen corresponding path program 1 times [2022-07-21 05:54:04,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:04,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893784867] [2022-07-21 05:54:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:04,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:04,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893784867] [2022-07-21 05:54:04,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893784867] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:04,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:04,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453345352] [2022-07-21 05:54:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:04,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:04,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:04,907 INFO L87 Difference]: Start difference. First operand 1122 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:05,575 INFO L93 Difference]: Finished difference Result 2526 states and 3651 transitions. [2022-07-21 05:54:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-07-21 05:54:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:05,579 INFO L225 Difference]: With dead ends: 2526 [2022-07-21 05:54:05,579 INFO L226 Difference]: Without dead ends: 1480 [2022-07-21 05:54:05,581 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 [2022-07-21 05:54:05,581 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:05,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 281 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-07-21 05:54:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1462. [2022-07-21 05:54:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 1.4243668720054756) internal successors, (2081), 1461 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:06,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2081 transitions. [2022-07-21 05:54:06,231 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2081 transitions. Word has length 74 [2022-07-21 05:54:06,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:06,232 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 2081 transitions. [2022-07-21 05:54:06,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2081 transitions. [2022-07-21 05:54:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:54:06,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:06,233 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] [2022-07-21 05:54:06,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 05:54:06,234 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1468955342, now seen corresponding path program 1 times [2022-07-21 05:54:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:06,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238556125] [2022-07-21 05:54:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:06,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:06,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:06,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238556125] [2022-07-21 05:54:06,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238556125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:06,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:06,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:06,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156706218] [2022-07-21 05:54:06,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:06,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:06,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:06,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:06,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:06,292 INFO L87 Difference]: Start difference. First operand 1462 states and 2081 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:07,548 INFO L93 Difference]: Finished difference Result 2676 states and 3839 transitions. [2022-07-21 05:54:07,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-07-21 05:54:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:07,556 INFO L225 Difference]: With dead ends: 2676 [2022-07-21 05:54:07,556 INFO L226 Difference]: Without dead ends: 2266 [2022-07-21 05:54:07,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:54:07,557 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 288 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:07,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 473 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2022-07-21 05:54:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1852. [2022-07-21 05:54:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1851 states have (on average 1.4278768233387358) internal successors, (2643), 1851 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2643 transitions. [2022-07-21 05:54:08,470 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2643 transitions. Word has length 74 [2022-07-21 05:54:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:08,470 INFO L495 AbstractCegarLoop]: Abstraction has 1852 states and 2643 transitions. [2022-07-21 05:54:08,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2643 transitions. [2022-07-21 05:54:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 05:54:08,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:08,472 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] [2022-07-21 05:54:08,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 05:54:08,472 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1631844587, now seen corresponding path program 1 times [2022-07-21 05:54:08,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:08,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527820300] [2022-07-21 05:54:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:08,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:08,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527820300] [2022-07-21 05:54:08,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527820300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:08,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:08,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942703579] [2022-07-21 05:54:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:08,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:08,507 INFO L87 Difference]: Start difference. First operand 1852 states and 2643 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:10,052 INFO L93 Difference]: Finished difference Result 5188 states and 7385 transitions. [2022-07-21 05:54:10,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:10,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-07-21 05:54:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:10,060 INFO L225 Difference]: With dead ends: 5188 [2022-07-21 05:54:10,060 INFO L226 Difference]: Without dead ends: 3412 [2022-07-21 05:54:10,062 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 [2022-07-21 05:54:10,062 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 55 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 258 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 [2022-07-21 05:54:10,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2022-07-21 05:54:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3194. [2022-07-21 05:54:11,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3193 states have (on average 1.4093329157532102) internal successors, (4500), 3193 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:11,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 4500 transitions. [2022-07-21 05:54:11,566 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 4500 transitions. Word has length 74 [2022-07-21 05:54:11,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:11,566 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 4500 transitions. [2022-07-21 05:54:11,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:11,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 4500 transitions. [2022-07-21 05:54:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:11,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:11,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:11,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 05:54:11,568 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -536068422, now seen corresponding path program 1 times [2022-07-21 05:54:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:11,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488145257] [2022-07-21 05:54:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:11,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488145257] [2022-07-21 05:54:11,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488145257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:11,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:11,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851028950] [2022-07-21 05:54:11,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:11,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:11,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:11,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:11,607 INFO L87 Difference]: Start difference. First operand 3194 states and 4500 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:14,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:14,401 INFO L93 Difference]: Finished difference Result 8998 states and 12578 transitions. [2022-07-21 05:54:14,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 05:54:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:14,415 INFO L225 Difference]: With dead ends: 8998 [2022-07-21 05:54:14,415 INFO L226 Difference]: Without dead ends: 5880 [2022-07-21 05:54:14,418 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 [2022-07-21 05:54:14,418 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 45 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 257 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 [2022-07-21 05:54:14,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 257 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5880 states. [2022-07-21 05:54:16,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5880 to 5446. [2022-07-21 05:54:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5445 states have (on average 1.3796143250688706) internal successors, (7512), 5445 states have internal predecessors, (7512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 7512 transitions. [2022-07-21 05:54:16,880 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 7512 transitions. Word has length 75 [2022-07-21 05:54:16,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:16,881 INFO L495 AbstractCegarLoop]: Abstraction has 5446 states and 7512 transitions. [2022-07-21 05:54:16,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 7512 transitions. [2022-07-21 05:54:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 05:54:16,881 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:16,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:16,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 05:54:16,882 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:16,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1852091383, now seen corresponding path program 1 times [2022-07-21 05:54:16,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:16,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446495997] [2022-07-21 05:54:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:16,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:16,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:16,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446495997] [2022-07-21 05:54:16,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446495997] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:16,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:16,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:54:16,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681397686] [2022-07-21 05:54:16,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:16,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:54:16,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:16,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:54:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:54:16,932 INFO L87 Difference]: Start difference. First operand 5446 states and 7512 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:20,941 INFO L93 Difference]: Finished difference Result 8560 states and 11714 transitions. [2022-07-21 05:54:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:54:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-07-21 05:54:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:20,962 INFO L225 Difference]: With dead ends: 8560 [2022-07-21 05:54:20,962 INFO L226 Difference]: Without dead ends: 8558 [2022-07-21 05:54:20,964 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 [2022-07-21 05:54:20,964 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 204 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:20,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 665 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:20,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-07-21 05:54:23,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 5542. [2022-07-21 05:54:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5542 states, 5541 states have (on average 1.3658184443241292) internal successors, (7568), 5541 states have internal predecessors, (7568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 7568 transitions. [2022-07-21 05:54:23,463 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 7568 transitions. Word has length 76 [2022-07-21 05:54:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:23,463 INFO L495 AbstractCegarLoop]: Abstraction has 5542 states and 7568 transitions. [2022-07-21 05:54:23,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 7568 transitions. [2022-07-21 05:54:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:54:23,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:23,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:23,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 05:54:23,464 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:23,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash -966335138, now seen corresponding path program 1 times [2022-07-21 05:54:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:23,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721108929] [2022-07-21 05:54:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:23,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:23,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:23,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721108929] [2022-07-21 05:54:23,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721108929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:23,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:23,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:23,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484469943] [2022-07-21 05:54:23,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:23,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:23,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:23,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:23,495 INFO L87 Difference]: Start difference. First operand 5542 states and 7568 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:27,044 INFO L93 Difference]: Finished difference Result 12850 states and 17506 transitions. [2022-07-21 05:54:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 05:54:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:27,060 INFO L225 Difference]: With dead ends: 12850 [2022-07-21 05:54:27,061 INFO L226 Difference]: Without dead ends: 7384 [2022-07-21 05:54:27,068 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 [2022-07-21 05:54:27,068 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 259 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 [2022-07-21 05:54:27,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 259 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:27,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7384 states. [2022-07-21 05:54:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7384 to 6774. [2022-07-21 05:54:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6774 states, 6773 states have (on average 1.3335301934150303) internal successors, (9032), 6773 states have internal predecessors, (9032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6774 states to 6774 states and 9032 transitions. [2022-07-21 05:54:30,254 INFO L78 Accepts]: Start accepts. Automaton has 6774 states and 9032 transitions. Word has length 77 [2022-07-21 05:54:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:30,254 INFO L495 AbstractCegarLoop]: Abstraction has 6774 states and 9032 transitions. [2022-07-21 05:54:30,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6774 states and 9032 transitions. [2022-07-21 05:54:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 05:54:30,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:30,257 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 05:54:30,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 05:54:30,258 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:30,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash 914913403, now seen corresponding path program 1 times [2022-07-21 05:54:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:30,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550268434] [2022-07-21 05:54:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:30,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:30,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550268434] [2022-07-21 05:54:30,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550268434] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:54:30,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456229245] [2022-07-21 05:54:30,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:30,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:54:30,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:54:30,412 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) [2022-07-21 05:54:30,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 05:54:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:30,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 05:54:30,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:54:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:31,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:54:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456229245] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:54:32,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:54:32,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-07-21 05:54:32,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912988377] [2022-07-21 05:54:32,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:54:32,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 05:54:32,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 05:54:32,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-07-21 05:54:32,524 INFO L87 Difference]: Start difference. First operand 6774 states and 9032 transitions. Second operand has 27 states, 27 states have (on average 8.703703703703704) internal successors, (235), 26 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) [2022-07-21 05:55:54,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:55:54,121 INFO L93 Difference]: Finished difference Result 108011 states and 139538 transitions. [2022-07-21 05:55:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-07-21 05:55:54,121 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 8.703703703703704) internal successors, (235), 26 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) Word has length 98 [2022-07-21 05:55:54,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:55:54,424 INFO L225 Difference]: With dead ends: 108011 [2022-07-21 05:55:54,424 INFO L226 Difference]: Without dead ends: 101313 [2022-07-21 05:55:54,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 385 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65365 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=15532, Invalid=133850, Unknown=0, NotChecked=0, Total=149382 [2022-07-21 05:55:54,508 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 6853 mSDsluCounter, 4930 mSDsCounter, 0 mSdLazyCounter, 4716 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6853 SdHoareTripleChecker+Valid, 5243 SdHoareTripleChecker+Invalid, 5088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 4716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 05:55:54,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6853 Valid, 5243 Invalid, 5088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 4716 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 05:55:54,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101313 states. [2022-07-21 05:56:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101313 to 25338. [2022-07-21 05:56:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25338 states, 25337 states have (on average 1.3183881280341003) internal successors, (33404), 25337 states have internal predecessors, (33404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:56:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25338 states to 25338 states and 33404 transitions. [2022-07-21 05:56:09,934 INFO L78 Accepts]: Start accepts. Automaton has 25338 states and 33404 transitions. Word has length 98 [2022-07-21 05:56:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:56:09,934 INFO L495 AbstractCegarLoop]: Abstraction has 25338 states and 33404 transitions. [2022-07-21 05:56:09,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 8.703703703703704) internal successors, (235), 26 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) [2022-07-21 05:56:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 25338 states and 33404 transitions. [2022-07-21 05:56:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 05:56:09,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:56:09,940 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 05:56:09,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 05:56:10,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:56:10,155 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:56:10,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:56:10,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1809238733, now seen corresponding path program 1 times [2022-07-21 05:56:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:56:10,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438916978] [2022-07-21 05:56:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:56:10,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:56:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:56:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:56:10,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:56:10,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438916978] [2022-07-21 05:56:10,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438916978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:56:10,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:56:10,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:56:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424993936] [2022-07-21 05:56:10,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:56:10,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:56:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:56:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:56:10,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:56:10,203 INFO L87 Difference]: Start difference. First operand 25338 states and 33404 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) [2022-07-21 05:56:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:56:24,465 INFO L93 Difference]: Finished difference Result 49835 states and 65731 transitions. [2022-07-21 05:56:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:56:24,465 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 [2022-07-21 05:56:24,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:56:24,511 INFO L225 Difference]: With dead ends: 49835 [2022-07-21 05:56:24,511 INFO L226 Difference]: Without dead ends: 24580 [2022-07-21 05:56:24,540 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 [2022-07-21 05:56:24,541 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 55 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 239 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 [2022-07-21 05:56:24,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 239 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:56:24,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24580 states. [2022-07-21 05:56:38,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24580 to 24403. [2022-07-21 05:56:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24403 states, 24402 states have (on average 1.2925579870502417) internal successors, (31541), 24402 states have internal predecessors, (31541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:56:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24403 states to 24403 states and 31541 transitions. [2022-07-21 05:56:38,898 INFO L78 Accepts]: Start accepts. Automaton has 24403 states and 31541 transitions. Word has length 98 [2022-07-21 05:56:38,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:56:38,898 INFO L495 AbstractCegarLoop]: Abstraction has 24403 states and 31541 transitions. [2022-07-21 05:56:38,898 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) [2022-07-21 05:56:38,898 INFO L276 IsEmpty]: Start isEmpty. Operand 24403 states and 31541 transitions. [2022-07-21 05:56:38,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 05:56:38,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:56:38,902 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 05:56:38,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 05:56:38,903 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:56:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:56:38,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1600083782, now seen corresponding path program 1 times [2022-07-21 05:56:38,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:56:38,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266874118] [2022-07-21 05:56:38,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:56:38,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:56:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:56:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:56:39,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:56:39,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266874118] [2022-07-21 05:56:39,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266874118] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:56:39,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903959490] [2022-07-21 05:56:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:56:39,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:56:39,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:56:39,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:56:39,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 05:56:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:56:39,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-21 05:56:39,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:56:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:56:39,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:56:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:56:40,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903959490] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:56:40,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:56:40,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 31 [2022-07-21 05:56:40,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696195320] [2022-07-21 05:56:40,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:56:40,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-21 05:56:40,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:56:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-21 05:56:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=850, Unknown=0, NotChecked=0, Total=930 [2022-07-21 05:56:40,561 INFO L87 Difference]: Start difference. First operand 24403 states and 31541 transitions. Second operand has 31 states, 31 states have (on average 8.709677419354838) internal successors, (270), 31 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)