./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:53:47,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:53:47,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:53:47,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:53:47,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:53:47,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:53:47,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:53:47,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:53:47,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:53:47,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:53:47,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:53:47,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:53:47,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:53:47,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:53:47,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:53:47,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:53:47,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:53:47,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:53:47,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:53:47,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:53:47,119 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:53:47,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:53:47,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:53:47,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:53:47,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:53:47,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:53:47,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:53:47,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:53:47,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:53:47,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:53:47,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:53:47,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:53:47,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:53:47,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:53:47,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:53:47,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:53:47,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:53:47,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:53:47,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:53:47,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:53:47,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:53:47,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:53:47,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:53:47,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:53:47,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:53:47,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:53:47,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:53:47,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:53:47,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:53:47,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:53:47,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:53:47,172 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:53:47,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:53:47,173 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:53:47,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:53:47,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:53:47,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:53:47,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:53:47,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:53:47,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:53:47,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:53:47,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:53:47,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:53:47,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:53:47,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:53:47,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:53:47,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:53:47,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:53:47,177 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:53:47,177 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:53:47,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:53:47,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd [2022-07-21 05:53:47,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:53:47,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:53:47,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:53:47,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:53:47,468 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:53:47,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:53:47,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b2b3ed1/1a526f4b66d645b9bfd5612b9c677cee/FLAGda5fad8ef [2022-07-21 05:53:47,942 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:53:47,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:53:47,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b2b3ed1/1a526f4b66d645b9bfd5612b9c677cee/FLAGda5fad8ef [2022-07-21 05:53:47,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b2b3ed1/1a526f4b66d645b9bfd5612b9c677cee [2022-07-21 05:53:47,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:53:47,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:53:47,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:53:47,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:53:47,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:53:47,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:53:47" (1/1) ... [2022-07-21 05:53:47,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f76da33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:47, skipping insertion in model container [2022-07-21 05:53:47,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:53:47" (1/1) ... [2022-07-21 05:53:47,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:53:48,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:53:48,247 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2022-07-21 05:53:48,280 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2022-07-21 05:53:48,286 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2022-07-21 05:53:48,290 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2022-07-21 05:53:48,299 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2022-07-21 05:53:48,309 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2022-07-21 05:53:48,312 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2022-07-21 05:53:48,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:53:48,361 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:53:48,408 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2022-07-21 05:53:48,413 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2022-07-21 05:53:48,415 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2022-07-21 05:53:48,419 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2022-07-21 05:53:48,422 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2022-07-21 05:53:48,428 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2022-07-21 05:53:48,430 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.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2022-07-21 05:53:48,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:53:48,457 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:53:48,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48 WrapperNode [2022-07-21 05:53:48,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:53:48,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:53:48,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:53:48,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:53:48,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,526 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1018 [2022-07-21 05:53:48,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:53:48,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:53:48,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:53:48,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:53:48,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:53:48,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:53:48,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:53:48,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:53:48,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (1/1) ... [2022-07-21 05:53:48,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:53:48,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:53:48,623 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 05:53:48,624 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 05:53:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:53:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:53:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:53:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:53:48,805 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:53:48,807 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:53:49,384 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:53:49,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:53:49,393 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:53:49,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:53:49 BoogieIcfgContainer [2022-07-21 05:53:49,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:53:49,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:53:49,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:53:49,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:53:49,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:53:47" (1/3) ... [2022-07-21 05:53:49,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da6b4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:53:49, skipping insertion in model container [2022-07-21 05:53:49,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:53:48" (2/3) ... [2022-07-21 05:53:49,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da6b4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:53:49, skipping insertion in model container [2022-07-21 05:53:49,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:53:49" (3/3) ... [2022-07-21 05:53:49,402 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-07-21 05:53:49,412 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:53:49,412 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-07-21 05:53:49,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:53:49,457 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@13d2b673, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6fb28cc4 [2022-07-21 05:53:49,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-21 05:53:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 0 states 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 05:53:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-21 05:53:49,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:49,471 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 05:53:49,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2022-07-21 05:53:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736747083] [2022-07-21 05:53:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:49,743 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 05:53:49,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:49,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736747083] [2022-07-21 05:53:49,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736747083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:49,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:49,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551472690] [2022-07-21 05:53:49,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:49,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:49,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:49,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:49,786 INFO L87 Difference]: Start difference. First operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 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 05:53:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:49,992 INFO L93 Difference]: Finished difference Result 339 states and 570 transitions. [2022-07-21 05:53:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:49,994 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 05:53:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:50,003 INFO L225 Difference]: With dead ends: 339 [2022-07-21 05:53:50,004 INFO L226 Difference]: Without dead ends: 175 [2022-07-21 05:53:50,007 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 05:53:50,012 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 847 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:50,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 224 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:50,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-07-21 05:53:50,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-07-21 05:53:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 168 states have (on average 1.2857142857142858) internal successors, (216), 174 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2022-07-21 05:53:50,070 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 47 [2022-07-21 05:53:50,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:50,070 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2022-07-21 05:53:50,071 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 05:53:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2022-07-21 05:53:50,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 05:53:50,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:50,076 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 05:53:50,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:53:50,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:50,077 INFO L85 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2022-07-21 05:53:50,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:50,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248394132] [2022-07-21 05:53:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:50,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:50,186 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 05:53:50,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:50,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248394132] [2022-07-21 05:53:50,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248394132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:50,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:50,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:50,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319947333] [2022-07-21 05:53:50,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:50,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:50,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:50,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:50,189 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 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 05:53:50,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:50,293 INFO L93 Difference]: Finished difference Result 298 states and 377 transitions. [2022-07-21 05:53:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:50,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 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 05:53:50,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:50,297 INFO L225 Difference]: With dead ends: 298 [2022-07-21 05:53:50,297 INFO L226 Difference]: Without dead ends: 162 [2022-07-21 05:53:50,299 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 05:53:50,301 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 551 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:50,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 131 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:50,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-21 05:53:50,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-21 05:53:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 155 states have (on average 1.2903225806451613) internal successors, (200), 161 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 05:53:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2022-07-21 05:53:50,318 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 48 [2022-07-21 05:53:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:50,319 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2022-07-21 05:53:50,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 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 05:53:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2022-07-21 05:53:50,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 05:53:50,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:50,323 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] [2022-07-21 05:53:50,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:53:50,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:50,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2021523794, now seen corresponding path program 1 times [2022-07-21 05:53:50,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:50,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633696760] [2022-07-21 05:53:50,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:50,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:50,418 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 05:53:50,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:50,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633696760] [2022-07-21 05:53:50,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633696760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:50,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:50,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:53:50,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103157192] [2022-07-21 05:53:50,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:50,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:53:50,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:50,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:53:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:53:50,425 INFO L87 Difference]: Start difference. First operand 162 states and 200 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 05:53:50,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:50,531 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2022-07-21 05:53:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:53:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-07-21 05:53:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:50,533 INFO L225 Difference]: With dead ends: 285 [2022-07-21 05:53:50,533 INFO L226 Difference]: Without dead ends: 157 [2022-07-21 05:53:50,534 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 05:53:50,534 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 513 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:50,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 128 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-07-21 05:53:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-07-21 05:53:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 156 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2022-07-21 05:53:50,545 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 49 [2022-07-21 05:53:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:50,545 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2022-07-21 05:53:50,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 05:53:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2022-07-21 05:53:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:50,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:50,546 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] [2022-07-21 05:53:50,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:53:50,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:50,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2022-07-21 05:53:50,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:50,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620735903] [2022-07-21 05:53:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:50,704 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 05:53:50,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:50,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620735903] [2022-07-21 05:53:50,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620735903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:50,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:50,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:50,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405755123] [2022-07-21 05:53:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:50,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:50,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:50,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:50,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:50,706 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:51,198 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2022-07-21 05:53:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:53:51,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:51,202 INFO L225 Difference]: With dead ends: 332 [2022-07-21 05:53:51,202 INFO L226 Difference]: Without dead ends: 327 [2022-07-21 05:53:51,203 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 05:53:51,208 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1198 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:51,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 607 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-21 05:53:51,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 157. [2022-07-21 05:53:51,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.28) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states 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 05:53:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2022-07-21 05:53:51,225 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 50 [2022-07-21 05:53:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:51,225 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2022-07-21 05:53:51,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2022-07-21 05:53:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:51,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:51,226 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 05:53:51,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:53:51,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2022-07-21 05:53:51,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:51,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882270027] [2022-07-21 05:53:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:51,328 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 05:53:51,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:51,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882270027] [2022-07-21 05:53:51,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882270027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:51,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:51,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:51,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866516511] [2022-07-21 05:53:51,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:51,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:51,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:51,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:51,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:51,330 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:51,751 INFO L93 Difference]: Finished difference Result 391 states and 514 transitions. [2022-07-21 05:53:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 05:53:51,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:51,753 INFO L225 Difference]: With dead ends: 391 [2022-07-21 05:53:51,753 INFO L226 Difference]: Without dead ends: 331 [2022-07-21 05:53:51,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:53:51,754 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1041 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:51,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 810 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-21 05:53:51,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 157. [2022-07-21 05:53:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2733333333333334) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 05:53:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2022-07-21 05:53:51,765 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 50 [2022-07-21 05:53:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:51,766 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2022-07-21 05:53:51,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 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 05:53:51,766 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2022-07-21 05:53:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-21 05:53:51,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:51,767 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 05:53:51,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:53:51,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:51,768 INFO L85 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2022-07-21 05:53:51,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:51,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279914805] [2022-07-21 05:53:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:51,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:51,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279914805] [2022-07-21 05:53:51,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279914805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:51,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:51,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:53:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421060544] [2022-07-21 05:53:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:51,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:53:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:53:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:53:51,863 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 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 05:53:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:52,045 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2022-07-21 05:53:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:53:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 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 05:53:52,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:52,047 INFO L225 Difference]: With dead ends: 312 [2022-07-21 05:53:52,047 INFO L226 Difference]: Without dead ends: 229 [2022-07-21 05:53:52,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:53:52,048 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1007 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:52,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 307 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:53:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-07-21 05:53:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2022-07-21 05:53:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2666666666666666) internal successors, (190), 156 states have internal predecessors, (190), 0 states have call successors, (0), 0 states 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 05:53:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2022-07-21 05:53:52,060 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 50 [2022-07-21 05:53:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:52,061 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2022-07-21 05:53:52,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 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 05:53:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2022-07-21 05:53:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:53:52,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:52,062 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 05:53:52,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:53:52,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:52,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:52,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2022-07-21 05:53:52,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:52,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964226650] [2022-07-21 05:53:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:52,305 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 05:53:52,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:52,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964226650] [2022-07-21 05:53:52,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964226650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:52,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:52,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:52,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972099851] [2022-07-21 05:53:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:52,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:52,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:52,308 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:52,776 INFO L93 Difference]: Finished difference Result 292 states and 367 transitions. [2022-07-21 05:53:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 05:53:52,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:52,778 INFO L225 Difference]: With dead ends: 292 [2022-07-21 05:53:52,778 INFO L226 Difference]: Without dead ends: 245 [2022-07-21 05:53:52,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:53:52,779 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1045 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:52,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 885 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-07-21 05:53:52,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 153. [2022-07-21 05:53:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 147 states have (on average 1.2585034013605443) internal successors, (185), 152 states have internal predecessors, (185), 0 states have call successors, (0), 0 states 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 05:53:52,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 185 transitions. [2022-07-21 05:53:52,792 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 185 transitions. Word has length 52 [2022-07-21 05:53:52,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:52,792 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 185 transitions. [2022-07-21 05:53:52,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:52,792 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 185 transitions. [2022-07-21 05:53:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:53:52,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:52,793 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 05:53:52,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:53:52,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:52,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:52,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2022-07-21 05:53:52,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:52,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659282857] [2022-07-21 05:53:52,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:53,008 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 05:53:53,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:53,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659282857] [2022-07-21 05:53:53,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659282857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:53,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:53,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653660844] [2022-07-21 05:53:53,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:53,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:53,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:53,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:53,010 INFO L87 Difference]: Start difference. First operand 153 states and 185 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:53,492 INFO L93 Difference]: Finished difference Result 294 states and 373 transitions. [2022-07-21 05:53:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:53:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:53,494 INFO L225 Difference]: With dead ends: 294 [2022-07-21 05:53:53,494 INFO L226 Difference]: Without dead ends: 240 [2022-07-21 05:53:53,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:53:53,495 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 690 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:53,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1444 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:53,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-07-21 05:53:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 142. [2022-07-21 05:53:53,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-07-21 05:53:53,515 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 52 [2022-07-21 05:53:53,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:53,517 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-07-21 05:53:53,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-07-21 05:53:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 05:53:53,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:53,518 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 05:53:53,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:53:53,519 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:53,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:53,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2022-07-21 05:53:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:53,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727818094] [2022-07-21 05:53:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:53,756 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 05:53:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727818094] [2022-07-21 05:53:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727818094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:53,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:53,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007901816] [2022-07-21 05:53:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:53,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:53,759 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:54,189 INFO L93 Difference]: Finished difference Result 226 states and 278 transitions. [2022-07-21 05:53:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:53:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:54,190 INFO L225 Difference]: With dead ends: 226 [2022-07-21 05:53:54,190 INFO L226 Difference]: Without dead ends: 222 [2022-07-21 05:53:54,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-21 05:53:54,191 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 826 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:54,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 916 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-07-21 05:53:54,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 138. [2022-07-21 05:53:54,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2537313432835822) internal successors, (168), 137 states have internal predecessors, (168), 0 states have call successors, (0), 0 states 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 05:53:54,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2022-07-21 05:53:54,209 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 52 [2022-07-21 05:53:54,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:54,209 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2022-07-21 05:53:54,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 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 05:53:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2022-07-21 05:53:54,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 05:53:54,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:54,210 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 05:53:54,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:53:54,211 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:54,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:54,211 INFO L85 PathProgramCache]: Analyzing trace with hash 190692674, now seen corresponding path program 1 times [2022-07-21 05:53:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:54,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676494829] [2022-07-21 05:53:54,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:54,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:53:54,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:54,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676494829] [2022-07-21 05:53:54,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676494829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:54,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:54,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:53:54,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193469320] [2022-07-21 05:53:54,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:54,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:54,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:54,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:54,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:54,347 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) 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 05:53:55,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:55,084 INFO L93 Difference]: Finished difference Result 350 states and 453 transitions. [2022-07-21 05:53:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 05:53:55,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) 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 05:53:55,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:55,085 INFO L225 Difference]: With dead ends: 350 [2022-07-21 05:53:55,086 INFO L226 Difference]: Without dead ends: 343 [2022-07-21 05:53:55,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-21 05:53:55,087 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 2122 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:55,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 582 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:53:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-07-21 05:53:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 142. [2022-07-21 05:53:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2463768115942029) internal successors, (172), 141 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-07-21 05:53:55,106 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 53 [2022-07-21 05:53:55,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:55,106 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-07-21 05:53:55,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) 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 05:53:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-07-21 05:53:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 05:53:55,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:55,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:53:55,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:53:55,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:55,108 INFO L85 PathProgramCache]: Analyzing trace with hash -659119293, now seen corresponding path program 1 times [2022-07-21 05:53:55,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:55,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35149174] [2022-07-21 05:53:55,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:55,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:55,181 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 05:53:55,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:55,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35149174] [2022-07-21 05:53:55,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35149174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:55,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:55,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:55,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275875189] [2022-07-21 05:53:55,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:55,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:55,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:55,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:55,184 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:55,479 INFO L93 Difference]: Finished difference Result 223 states and 274 transitions. [2022-07-21 05:53:55,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 05:53:55,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:55,481 INFO L225 Difference]: With dead ends: 223 [2022-07-21 05:53:55,481 INFO L226 Difference]: Without dead ends: 216 [2022-07-21 05:53:55,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-21 05:53:55,482 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 920 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:55,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 424 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-21 05:53:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 142. [2022-07-21 05:53:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 141 states have internal predecessors, (171), 0 states have call successors, (0), 0 states 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 05:53:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2022-07-21 05:53:55,498 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 53 [2022-07-21 05:53:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:55,499 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2022-07-21 05:53:55,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2022-07-21 05:53:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 05:53:55,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:55,500 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 05:53:55,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 05:53:55,500 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:55,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:55,500 INFO L85 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2022-07-21 05:53:55,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:55,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562235649] [2022-07-21 05:53:55,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:55,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:55,563 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 05:53:55,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:55,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562235649] [2022-07-21 05:53:55,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562235649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:55,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:55,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:55,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015526378] [2022-07-21 05:53:55,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:55,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:55,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:55,565 INFO L87 Difference]: Start difference. First operand 142 states and 171 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:55,848 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2022-07-21 05:53:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:53:55,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:55,850 INFO L225 Difference]: With dead ends: 285 [2022-07-21 05:53:55,850 INFO L226 Difference]: Without dead ends: 224 [2022-07-21 05:53:55,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:53:55,851 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 594 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:55,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-07-21 05:53:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 142. [2022-07-21 05:53:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2318840579710144) internal successors, (170), 141 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 05:53:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 170 transitions. [2022-07-21 05:53:55,872 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 170 transitions. Word has length 53 [2022-07-21 05:53:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:55,872 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 170 transitions. [2022-07-21 05:53:55,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 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 05:53:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 170 transitions. [2022-07-21 05:53:55,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 05:53:55,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:55,873 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 05:53:55,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 05:53:55,873 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash -746268687, now seen corresponding path program 1 times [2022-07-21 05:53:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:55,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282181590] [2022-07-21 05:53:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:55,942 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 05:53:55,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:55,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282181590] [2022-07-21 05:53:55,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282181590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:55,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:55,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:53:55,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879819720] [2022-07-21 05:53:55,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:55,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:53:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:55,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:53:55,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:53:55,944 INFO L87 Difference]: Start difference. First operand 142 states and 170 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 05:53:56,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:56,255 INFO L93 Difference]: Finished difference Result 223 states and 272 transitions. [2022-07-21 05:53:56,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:53:56,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 05:53:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:56,256 INFO L225 Difference]: With dead ends: 223 [2022-07-21 05:53:56,259 INFO L226 Difference]: Without dead ends: 216 [2022-07-21 05:53:56,259 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 05:53:56,260 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 496 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:56,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 625 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:56,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-21 05:53:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 138. [2022-07-21 05:53:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 137 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:53:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2022-07-21 05:53:56,276 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 54 [2022-07-21 05:53:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:56,276 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2022-07-21 05:53:56,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 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 05:53:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2022-07-21 05:53:56,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-21 05:53:56,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:56,277 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] [2022-07-21 05:53:56,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 05:53:56,277 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash -11876974, now seen corresponding path program 1 times [2022-07-21 05:53:56,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:56,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580096495] [2022-07-21 05:53:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:56,543 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 05:53:56,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:56,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580096495] [2022-07-21 05:53:56,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580096495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:56,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:56,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 05:53:56,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992489302] [2022-07-21 05:53:56,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:56,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 05:53:56,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:56,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 05:53:56,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-21 05:53:56,546 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:57,732 INFO L93 Difference]: Finished difference Result 368 states and 458 transitions. [2022-07-21 05:53:57,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 05:53:57,732 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-07-21 05:53:57,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:57,735 INFO L225 Difference]: With dead ends: 368 [2022-07-21 05:53:57,735 INFO L226 Difference]: Without dead ends: 360 [2022-07-21 05:53:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2022-07-21 05:53:57,742 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1055 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:57,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 2935 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 05:53:57,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-21 05:53:57,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 143. [2022-07-21 05:53:57,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 139 states have (on average 1.223021582733813) internal successors, (170), 142 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 05:53:57,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2022-07-21 05:53:57,763 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 55 [2022-07-21 05:53:57,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:57,764 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2022-07-21 05:53:57,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:57,764 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2022-07-21 05:53:57,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-21 05:53:57,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:57,765 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] [2022-07-21 05:53:57,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 05:53:57,765 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:57,765 INFO L85 PathProgramCache]: Analyzing trace with hash -637393645, now seen corresponding path program 1 times [2022-07-21 05:53:57,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:57,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175580605] [2022-07-21 05:53:57,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:57,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:58,081 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 05:53:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:58,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175580605] [2022-07-21 05:53:58,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175580605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:58,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:58,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 05:53:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582353390] [2022-07-21 05:53:58,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:58,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 05:53:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:58,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 05:53:58,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-21 05:53:58,084 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:59,068 INFO L93 Difference]: Finished difference Result 371 states and 460 transitions. [2022-07-21 05:53:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 05:53:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-07-21 05:53:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:59,069 INFO L225 Difference]: With dead ends: 371 [2022-07-21 05:53:59,070 INFO L226 Difference]: Without dead ends: 363 [2022-07-21 05:53:59,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 05:53:59,070 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 937 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:59,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 2407 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 05:53:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-07-21 05:53:59,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 152. [2022-07-21 05:53:59,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 148 states have (on average 1.222972972972973) internal successors, (181), 151 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 05:53:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2022-07-21 05:53:59,095 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 55 [2022-07-21 05:53:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:59,095 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2022-07-21 05:53:59,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:59,095 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2022-07-21 05:53:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-21 05:53:59,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:59,096 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] [2022-07-21 05:53:59,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 05:53:59,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2022-07-21 05:53:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:59,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25467089] [2022-07-21 05:53:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:59,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:53:59,297 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 05:53:59,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:53:59,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25467089] [2022-07-21 05:53:59,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25467089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:53:59,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:53:59,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 05:53:59,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673571414] [2022-07-21 05:53:59,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:53:59,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 05:53:59,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:53:59,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 05:53:59,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 05:53:59,299 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:59,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:53:59,882 INFO L93 Difference]: Finished difference Result 317 states and 408 transitions. [2022-07-21 05:53:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 05:53:59,882 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-07-21 05:53:59,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:53:59,886 INFO L225 Difference]: With dead ends: 317 [2022-07-21 05:53:59,886 INFO L226 Difference]: Without dead ends: 311 [2022-07-21 05:53:59,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:53:59,888 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 878 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:53:59,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1339 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:53:59,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-07-21 05:53:59,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 146. [2022-07-21 05:53:59,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2237762237762237) internal successors, (175), 145 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 05:53:59,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2022-07-21 05:53:59,912 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 55 [2022-07-21 05:53:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:53:59,912 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2022-07-21 05:53:59,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 05:53:59,913 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2022-07-21 05:53:59,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:53:59,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:53:59,913 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] [2022-07-21 05:53:59,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 05:53:59,913 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:53:59,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:53:59,914 INFO L85 PathProgramCache]: Analyzing trace with hash -808849069, now seen corresponding path program 1 times [2022-07-21 05:53:59,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:53:59,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727519742] [2022-07-21 05:53:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:53:59,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:53:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:00,104 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 05:54:00,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:00,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727519742] [2022-07-21 05:54:00,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727519742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:00,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:00,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:54:00,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647138633] [2022-07-21 05:54:00,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:00,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:54:00,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:00,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:54:00,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:54:00,106 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:00,642 INFO L93 Difference]: Finished difference Result 314 states and 409 transitions. [2022-07-21 05:54:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:54:00,642 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-21 05:54:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:00,643 INFO L225 Difference]: With dead ends: 314 [2022-07-21 05:54:00,643 INFO L226 Difference]: Without dead ends: 299 [2022-07-21 05:54:00,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-07-21 05:54:00,644 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 435 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:00,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 2013 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:54:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-07-21 05:54:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 125. [2022-07-21 05:54:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.2276422764227641) internal successors, (151), 124 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 05:54:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 151 transitions. [2022-07-21 05:54:00,668 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 151 transitions. Word has length 56 [2022-07-21 05:54:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:00,668 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 151 transitions. [2022-07-21 05:54:00,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 151 transitions. [2022-07-21 05:54:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:54:00,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:00,669 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] [2022-07-21 05:54:00,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 05:54:00,670 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:00,670 INFO L85 PathProgramCache]: Analyzing trace with hash 623432965, now seen corresponding path program 1 times [2022-07-21 05:54:00,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:00,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264058764] [2022-07-21 05:54:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:00,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:00,967 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 05:54:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:00,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264058764] [2022-07-21 05:54:00,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264058764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:00,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:00,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 05:54:00,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180342131] [2022-07-21 05:54:00,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:00,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 05:54:00,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:00,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 05:54:00,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:54:00,968 INFO L87 Difference]: Start difference. First operand 125 states and 151 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:01,803 INFO L93 Difference]: Finished difference Result 254 states and 321 transitions. [2022-07-21 05:54:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 05:54:01,803 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-21 05:54:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:01,804 INFO L225 Difference]: With dead ends: 254 [2022-07-21 05:54:01,804 INFO L226 Difference]: Without dead ends: 240 [2022-07-21 05:54:01,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-07-21 05:54:01,805 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 668 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:01,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1409 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 05:54:01,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-07-21 05:54:01,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 120. [2022-07-21 05:54:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.228813559322034) internal successors, (145), 119 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 05:54:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2022-07-21 05:54:01,829 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 56 [2022-07-21 05:54:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:01,829 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2022-07-21 05:54:01,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2022-07-21 05:54:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 05:54:01,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:01,830 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] [2022-07-21 05:54:01,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 05:54:01,830 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:54:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1511387265, now seen corresponding path program 1 times [2022-07-21 05:54:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:01,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643860009] [2022-07-21 05:54:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:01,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:01,998 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 05:54:01,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:01,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643860009] [2022-07-21 05:54:01,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643860009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:01,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:01,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 05:54:01,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716256076] [2022-07-21 05:54:01,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:02,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 05:54:02,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:02,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 05:54:02,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:54:02,000 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:02,577 INFO L93 Difference]: Finished difference Result 368 states and 496 transitions. [2022-07-21 05:54:02,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 05:54:02,578 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-21 05:54:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:02,580 INFO L225 Difference]: With dead ends: 368 [2022-07-21 05:54:02,580 INFO L226 Difference]: Without dead ends: 350 [2022-07-21 05:54:02,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-21 05:54:02,581 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 974 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:02,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 947 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:54:02,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-21 05:54:02,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 102. [2022-07-21 05:54:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.2475247524752475) internal successors, (126), 101 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 05:54:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2022-07-21 05:54:02,608 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 56 [2022-07-21 05:54:02,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:02,609 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2022-07-21 05:54:02,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 05:54:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2022-07-21 05:54:02,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 05:54:02,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:02,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:02,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 05:54:02,610 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 05:54:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2022-07-21 05:54:02,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:02,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322533657] [2022-07-21 05:54:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:02,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:02,647 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 05:54:02,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:02,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322533657] [2022-07-21 05:54:02,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322533657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:02,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:02,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:02,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355176485] [2022-07-21 05:54:02,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:02,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:02,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:02,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:02,649 INFO L87 Difference]: Start difference. First operand 102 states and 126 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 05:54:02,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:02,794 INFO L93 Difference]: Finished difference Result 360 states and 504 transitions. [2022-07-21 05:54:02,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:54:02,794 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 05:54:02,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:02,795 INFO L225 Difference]: With dead ends: 360 [2022-07-21 05:54:02,795 INFO L226 Difference]: Without dead ends: 317 [2022-07-21 05:54:02,795 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 05:54:02,796 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 479 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:02,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 599 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-07-21 05:54:02,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 143. [2022-07-21 05:54:02,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.3098591549295775) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 05:54:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 186 transitions. [2022-07-21 05:54:02,842 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 186 transitions. Word has length 73 [2022-07-21 05:54:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:02,842 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 186 transitions. [2022-07-21 05:54:02,843 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 05:54:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2022-07-21 05:54:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:02,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:02,843 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 05:54:02,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 05:54:02,844 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 05:54:02,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2022-07-21 05:54:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:02,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020897762] [2022-07-21 05:54:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:02,879 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 05:54:02,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:02,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020897762] [2022-07-21 05:54:02,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020897762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:02,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:02,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:02,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195024876] [2022-07-21 05:54:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:02,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:02,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:02,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:02,882 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:03,034 INFO L93 Difference]: Finished difference Result 438 states and 616 transitions. [2022-07-21 05:54:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:03,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:03,036 INFO L225 Difference]: With dead ends: 438 [2022-07-21 05:54:03,036 INFO L226 Difference]: Without dead ends: 354 [2022-07-21 05:54:03,036 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 05:54:03,037 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 281 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:03,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 419 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-21 05:54:03,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 225. [2022-07-21 05:54:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3705357142857142) internal successors, (307), 224 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 307 transitions. [2022-07-21 05:54:03,117 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 307 transitions. Word has length 75 [2022-07-21 05:54:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 307 transitions. [2022-07-21 05:54:03,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 307 transitions. [2022-07-21 05:54:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:03,120 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:03,120 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 05:54:03,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 05:54:03,120 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 05:54:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2022-07-21 05:54:03,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:03,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359255562] [2022-07-21 05:54:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:03,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:03,169 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 05:54:03,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:03,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359255562] [2022-07-21 05:54:03,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359255562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:03,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:03,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:03,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206943678] [2022-07-21 05:54:03,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:03,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:03,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:03,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:03,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:03,172 INFO L87 Difference]: Start difference. First operand 225 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:03,369 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2022-07-21 05:54:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:03,372 INFO L225 Difference]: With dead ends: 520 [2022-07-21 05:54:03,372 INFO L226 Difference]: Without dead ends: 436 [2022-07-21 05:54:03,372 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 05:54:03,373 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 291 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:03,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 430 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-21 05:54:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 348. [2022-07-21 05:54:03,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.4063400576368876) internal successors, (488), 347 states have internal predecessors, (488), 0 states have call successors, (0), 0 states 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 05:54:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 488 transitions. [2022-07-21 05:54:03,503 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 488 transitions. Word has length 75 [2022-07-21 05:54:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:03,504 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 488 transitions. [2022-07-21 05:54:03,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 488 transitions. [2022-07-21 05:54:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:03,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:03,505 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 05:54:03,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 05:54:03,505 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 05:54:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2022-07-21 05:54:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:03,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447332504] [2022-07-21 05:54:03,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:03,556 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 05:54:03,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:03,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447332504] [2022-07-21 05:54:03,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447332504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:03,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:03,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:03,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842717048] [2022-07-21 05:54:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:03,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:03,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:03,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:03,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:03,558 INFO L87 Difference]: Start difference. First operand 348 states and 488 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 05:54:03,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:03,716 INFO L93 Difference]: Finished difference Result 639 states and 914 transitions. [2022-07-21 05:54:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:03,717 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 05:54:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:03,718 INFO L225 Difference]: With dead ends: 639 [2022-07-21 05:54:03,719 INFO L226 Difference]: Without dead ends: 350 [2022-07-21 05:54:03,719 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 05:54:03,720 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 200 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 05:54:03,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-21 05:54:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2022-07-21 05:54:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.3948126801152738) internal successors, (484), 347 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 05:54:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 484 transitions. [2022-07-21 05:54:03,857 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 484 transitions. Word has length 75 [2022-07-21 05:54:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:03,858 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 484 transitions. [2022-07-21 05:54:03,858 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 05:54:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 484 transitions. [2022-07-21 05:54:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:03,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:03,859 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 05:54:03,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 05:54:03,859 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 05:54:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2022-07-21 05:54:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:03,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224343632] [2022-07-21 05:54:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:03,883 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 05:54:03,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:03,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224343632] [2022-07-21 05:54:03,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224343632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:03,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:03,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:03,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688422060] [2022-07-21 05:54:03,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:03,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:03,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:03,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:03,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:03,886 INFO L87 Difference]: Start difference. First operand 348 states and 484 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 05:54:04,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:04,138 INFO L93 Difference]: Finished difference Result 881 states and 1251 transitions. [2022-07-21 05:54:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:04,138 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 05:54:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:04,140 INFO L225 Difference]: With dead ends: 881 [2022-07-21 05:54:04,140 INFO L226 Difference]: Without dead ends: 592 [2022-07-21 05:54:04,141 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 05:54:04,141 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 50 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:04,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 283 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:04,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-21 05:54:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 590. [2022-07-21 05:54:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 589 states have (on average 1.3837011884550086) internal successors, (815), 589 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 05:54:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 815 transitions. [2022-07-21 05:54:04,409 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 815 transitions. Word has length 75 [2022-07-21 05:54:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:04,410 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 815 transitions. [2022-07-21 05:54:04,410 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 05:54:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 815 transitions. [2022-07-21 05:54:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 05:54:04,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:04,410 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 05:54:04,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 05:54:04,411 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 05:54:04,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:04,411 INFO L85 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2022-07-21 05:54:04,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:04,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994906448] [2022-07-21 05:54:04,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:04,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:04,447 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 05:54:04,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:04,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994906448] [2022-07-21 05:54:04,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994906448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:04,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:04,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:54:04,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342361851] [2022-07-21 05:54:04,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:04,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:54:04,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:04,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:54:04,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:54:04,449 INFO L87 Difference]: Start difference. First operand 590 states and 815 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:04,848 INFO L93 Difference]: Finished difference Result 1051 states and 1467 transitions. [2022-07-21 05:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:54:04,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:04,851 INFO L225 Difference]: With dead ends: 1051 [2022-07-21 05:54:04,851 INFO L226 Difference]: Without dead ends: 898 [2022-07-21 05:54:04,852 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 05:54:04,852 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 283 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 461 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 05:54:04,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 461 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-07-21 05:54:05,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 741. [2022-07-21 05:54:05,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.3905405405405404) internal successors, (1029), 740 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states 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 05:54:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1029 transitions. [2022-07-21 05:54:05,183 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1029 transitions. Word has length 75 [2022-07-21 05:54:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:05,184 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1029 transitions. [2022-07-21 05:54:05,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 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 05:54:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1029 transitions. [2022-07-21 05:54:05,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-21 05:54:05,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:05,185 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 05:54:05,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 05:54:05,185 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 05:54:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2022-07-21 05:54:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:05,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096032164] [2022-07-21 05:54:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:05,214 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 05:54:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:05,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096032164] [2022-07-21 05:54:05,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096032164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:05,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:05,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:05,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439188144] [2022-07-21 05:54:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:05,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:05,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:05,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:05,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:05,217 INFO L87 Difference]: Start difference. First operand 741 states and 1029 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 05:54:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:05,727 INFO L93 Difference]: Finished difference Result 1862 states and 2600 transitions. [2022-07-21 05:54:05,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:05,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 05:54:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:05,731 INFO L225 Difference]: With dead ends: 1862 [2022-07-21 05:54:05,731 INFO L226 Difference]: Without dead ends: 1180 [2022-07-21 05:54:05,732 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 05:54:05,732 INFO L413 NwaCegarLoop]: 172 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, 266 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 05:54:05,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-07-21 05:54:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1106. [2022-07-21 05:54:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.3800904977375565) internal successors, (1525), 1105 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states 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 05:54:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1525 transitions. [2022-07-21 05:54:06,260 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1525 transitions. Word has length 76 [2022-07-21 05:54:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:06,260 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1525 transitions. [2022-07-21 05:54:06,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 05:54:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1525 transitions. [2022-07-21 05:54:06,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 05:54:06,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:06,261 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 05:54:06,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 05:54:06,261 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 05:54:06,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:06,262 INFO L85 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2022-07-21 05:54:06,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:06,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177997751] [2022-07-21 05:54:06,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:06,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:06,287 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 05:54:06,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:06,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177997751] [2022-07-21 05:54:06,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177997751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:06,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:06,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:06,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598080494] [2022-07-21 05:54:06,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:06,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:06,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:06,289 INFO L87 Difference]: Start difference. First operand 1106 states and 1525 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 05:54:07,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:07,212 INFO L93 Difference]: Finished difference Result 3092 states and 4260 transitions. [2022-07-21 05:54:07,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:07,212 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 05:54:07,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:07,217 INFO L225 Difference]: With dead ends: 3092 [2022-07-21 05:54:07,217 INFO L226 Difference]: Without dead ends: 2045 [2022-07-21 05:54:07,218 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 05:54:07,219 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 265 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 05:54:07,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:07,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-07-21 05:54:08,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1935. [2022-07-21 05:54:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1934 states have (on average 1.3624612202688728) internal successors, (2635), 1934 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states 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 05:54:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2635 transitions. [2022-07-21 05:54:08,088 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2635 transitions. Word has length 77 [2022-07-21 05:54:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:08,088 INFO L495 AbstractCegarLoop]: Abstraction has 1935 states and 2635 transitions. [2022-07-21 05:54:08,088 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 05:54:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2635 transitions. [2022-07-21 05:54:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 05:54:08,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:08,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:08,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 05:54:08,089 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 05:54:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:08,090 INFO L85 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2022-07-21 05:54:08,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:08,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738172104] [2022-07-21 05:54:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:08,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:08,116 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 05:54:08,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:08,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738172104] [2022-07-21 05:54:08,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738172104] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:08,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:08,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:08,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745201509] [2022-07-21 05:54:08,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:08,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:08,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:08,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:08,118 INFO L87 Difference]: Start difference. First operand 1935 states and 2635 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:09,724 INFO L93 Difference]: Finished difference Result 5471 states and 7401 transitions. [2022-07-21 05:54:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:09,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 05:54:09,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:09,733 INFO L225 Difference]: With dead ends: 5471 [2022-07-21 05:54:09,733 INFO L226 Difference]: Without dead ends: 3595 [2022-07-21 05:54:09,734 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 05:54:09,735 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 42 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 263 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 05:54:09,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2022-07-21 05:54:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3377. [2022-07-21 05:54:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3376 states have (on average 1.3341232227488151) internal successors, (4504), 3376 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states 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 05:54:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 4504 transitions. [2022-07-21 05:54:11,307 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 4504 transitions. Word has length 78 [2022-07-21 05:54:11,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:11,307 INFO L495 AbstractCegarLoop]: Abstraction has 3377 states and 4504 transitions. [2022-07-21 05:54:11,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 4504 transitions. [2022-07-21 05:54:11,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:54:11,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:11,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:11,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 05:54:11,308 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 05:54:11,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2022-07-21 05:54:11,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:11,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773970655] [2022-07-21 05:54:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:11,347 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 05:54:11,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:11,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773970655] [2022-07-21 05:54:11,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773970655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:11,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:11,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:54:11,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621342012] [2022-07-21 05:54:11,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:11,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:54:11,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:11,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:54:11,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:54:11,349 INFO L87 Difference]: Start difference. First operand 3377 states and 4504 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:13,859 INFO L93 Difference]: Finished difference Result 5221 states and 6939 transitions. [2022-07-21 05:54:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 05:54:13,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:54:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:13,871 INFO L225 Difference]: With dead ends: 5221 [2022-07-21 05:54:13,871 INFO L226 Difference]: Without dead ends: 5219 [2022-07-21 05:54:13,872 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 05:54:13,872 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 199 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:13,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 629 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5219 states. [2022-07-21 05:54:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5219 to 3473. [2022-07-21 05:54:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3473 states, 3472 states have (on average 1.3133640552995391) internal successors, (4560), 3472 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states 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 05:54:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4560 transitions. [2022-07-21 05:54:15,522 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4560 transitions. Word has length 79 [2022-07-21 05:54:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:15,522 INFO L495 AbstractCegarLoop]: Abstraction has 3473 states and 4560 transitions. [2022-07-21 05:54:15,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4560 transitions. [2022-07-21 05:54:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 05:54:15,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:15,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:15,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 05:54:15,523 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 05:54:15,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:15,524 INFO L85 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2022-07-21 05:54:15,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:15,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640976051] [2022-07-21 05:54:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:15,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:15,547 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 05:54:15,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:15,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640976051] [2022-07-21 05:54:15,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640976051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:15,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:15,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262057437] [2022-07-21 05:54:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:15,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:15,549 INFO L87 Difference]: Start difference. First operand 3473 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:17,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:17,248 INFO L93 Difference]: Finished difference Result 7021 states and 9234 transitions. [2022-07-21 05:54:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:17,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 05:54:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:17,258 INFO L225 Difference]: With dead ends: 7021 [2022-07-21 05:54:17,258 INFO L226 Difference]: Without dead ends: 3607 [2022-07-21 05:54:17,261 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 05:54:17,261 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 66 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:17,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:17,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2022-07-21 05:54:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3605. [2022-07-21 05:54:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3604 states have (on average 1.293007769145394) internal successors, (4660), 3604 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states 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 05:54:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4660 transitions. [2022-07-21 05:54:18,888 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4660 transitions. Word has length 79 [2022-07-21 05:54:18,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:18,889 INFO L495 AbstractCegarLoop]: Abstraction has 3605 states and 4660 transitions. [2022-07-21 05:54:18,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:54:18,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4660 transitions. [2022-07-21 05:54:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 05:54:18,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:18,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:18,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 05:54:18,891 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 05:54:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:18,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2022-07-21 05:54:18,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:18,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445399135] [2022-07-21 05:54:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:18,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:18,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445399135] [2022-07-21 05:54:18,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445399135] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:54:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146793701] [2022-07-21 05:54:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:18,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:54:18,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:54:18,995 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 05:54:18,997 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 05:54:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:19,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 05:54:19,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:54:19,710 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:19,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:54:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:54:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146793701] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:54:20,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:54:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2022-07-21 05:54:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022101871] [2022-07-21 05:54:20,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:54:20,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 05:54:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 05:54:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2022-07-21 05:54:20,691 INFO L87 Difference]: Start difference. First operand 3605 states and 4660 transitions. Second operand has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 05:54:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:43,957 INFO L93 Difference]: Finished difference Result 38133 states and 48312 transitions. [2022-07-21 05:54:43,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-07-21 05:54:43,957 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-07-21 05:54:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:44,050 INFO L225 Difference]: With dead ends: 38133 [2022-07-21 05:54:44,051 INFO L226 Difference]: Without dead ends: 34587 [2022-07-21 05:54:44,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5290 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3066, Invalid=12684, Unknown=0, NotChecked=0, Total=15750 [2022-07-21 05:54:44,068 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 4799 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4799 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:44,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4799 Valid, 1808 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 05:54:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34587 states. [2022-07-21 05:54:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34587 to 7680. [2022-07-21 05:54:48,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 7679 states have (on average 1.2862351868732909) internal successors, (9877), 7679 states have internal predecessors, (9877), 0 states have call successors, (0), 0 states 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 05:54:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 9877 transitions. [2022-07-21 05:54:48,308 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 9877 transitions. Word has length 101 [2022-07-21 05:54:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:48,308 INFO L495 AbstractCegarLoop]: Abstraction has 7680 states and 9877 transitions. [2022-07-21 05:54:48,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.851851851851851) internal successors, (266), 26 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 05:54:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 9877 transitions. [2022-07-21 05:54:48,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 05:54:48,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:48,310 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:54:48,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 05:54:48,523 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 05:54:48,524 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 05:54:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1466079819, now seen corresponding path program 1 times [2022-07-21 05:54:48,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231533834] [2022-07-21 05:54:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-21 05:54:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:48,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231533834] [2022-07-21 05:54:48,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231533834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:48,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:48,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:54:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932936677] [2022-07-21 05:54:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:48,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:54:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:48,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:54:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:54:48,573 INFO L87 Difference]: Start difference. First operand 7680 states and 9877 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 05:54:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:54:52,417 INFO L93 Difference]: Finished difference Result 14658 states and 18940 transitions. [2022-07-21 05:54:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:54:52,418 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 102 [2022-07-21 05:54:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:54:52,430 INFO L225 Difference]: With dead ends: 14658 [2022-07-21 05:54:52,430 INFO L226 Difference]: Without dead ends: 7044 [2022-07-21 05:54:52,438 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 05:54:52,438 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 82 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:54:52,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 103 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:54:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2022-07-21 05:54:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 7044. [2022-07-21 05:54:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 1.2808462302995882) internal successors, (9021), 7043 states have internal predecessors, (9021), 0 states have call successors, (0), 0 states 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 05:54:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9021 transitions. [2022-07-21 05:54:56,067 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9021 transitions. Word has length 102 [2022-07-21 05:54:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:54:56,068 INFO L495 AbstractCegarLoop]: Abstraction has 7044 states and 9021 transitions. [2022-07-21 05:54:56,068 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 05:54:56,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9021 transitions. [2022-07-21 05:54:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 05:54:56,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:54:56,070 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, 1, 1, 1, 1] [2022-07-21 05:54:56,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 05:54:56,070 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 05:54:56,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:54:56,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1423038550, now seen corresponding path program 1 times [2022-07-21 05:54:56,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:54:56,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114197745] [2022-07-21 05:54:56,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:54:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:54:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:54:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 05:54:56,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:54:56,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114197745] [2022-07-21 05:54:56,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114197745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:54:56,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:54:56,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 05:54:56,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011778060] [2022-07-21 05:54:56,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:54:56,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 05:54:56,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:54:56,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 05:54:56,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:54:56,132 INFO L87 Difference]: Start difference. First operand 7044 states and 9021 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:55:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:55:04,084 INFO L93 Difference]: Finished difference Result 21250 states and 27175 transitions. [2022-07-21 05:55:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 05:55:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-07-21 05:55:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:55:04,107 INFO L225 Difference]: With dead ends: 21250 [2022-07-21 05:55:04,107 INFO L226 Difference]: Without dead ends: 14266 [2022-07-21 05:55:04,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:55:04,116 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 433 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:55:04,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 375 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:55:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14266 states. [2022-07-21 05:55:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14266 to 7044. [2022-07-21 05:55:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 1.2807042453499928) internal successors, (9020), 7043 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states 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 05:55:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9020 transitions. [2022-07-21 05:55:08,022 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9020 transitions. Word has length 102 [2022-07-21 05:55:08,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:55:08,022 INFO L495 AbstractCegarLoop]: Abstraction has 7044 states and 9020 transitions. [2022-07-21 05:55:08,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:55:08,023 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9020 transitions. [2022-07-21 05:55:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 05:55:08,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:55:08,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:55:08,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 05:55:08,025 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:55:08,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:55:08,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1774298759, now seen corresponding path program 1 times [2022-07-21 05:55:08,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:55:08,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884990544] [2022-07-21 05:55:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:55:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:55:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:55:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:55:08,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:55:08,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884990544] [2022-07-21 05:55:08,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884990544] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:55:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244965976] [2022-07-21 05:55:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:55:08,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:55:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:55:08,188 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 05:55:08,190 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 05:55:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:55:08,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 05:55:08,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:55:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 3 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:55:35,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:55:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:55:36,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244965976] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:55:36,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:55:36,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2022-07-21 05:55:36,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217908143] [2022-07-21 05:55:36,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:55:36,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-21 05:55:36,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:55:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-21 05:55:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=757, Unknown=13, NotChecked=0, Total=870 [2022-07-21 05:55:37,000 INFO L87 Difference]: Start difference. First operand 7044 states and 9020 transitions. Second operand has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 29 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 05:57:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:57:55,904 INFO L93 Difference]: Finished difference Result 11043 states and 14028 transitions. [2022-07-21 05:57:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-07-21 05:57:55,905 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 29 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) Word has length 103 [2022-07-21 05:57:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:57:55,916 INFO L225 Difference]: With dead ends: 11043 [2022-07-21 05:57:55,916 INFO L226 Difference]: Without dead ends: 7553 [2022-07-21 05:57:55,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 161.3s TimeCoverageRelationStatistics Valid=569, Invalid=2716, Unknown=21, NotChecked=0, Total=3306 [2022-07-21 05:57:55,923 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 853 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 05:57:55,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 1273 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 712 Invalid, 0 Unknown, 136 Unchecked, 0.5s Time] [2022-07-21 05:57:55,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2022-07-21 05:57:59,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 7074. [2022-07-21 05:57:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7074 states, 7073 states have (on average 1.2799377916018662) internal successors, (9053), 7073 states have internal predecessors, (9053), 0 states have call successors, (0), 0 states 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 05:57:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7074 states to 7074 states and 9053 transitions. [2022-07-21 05:57:59,605 INFO L78 Accepts]: Start accepts. Automaton has 7074 states and 9053 transitions. Word has length 103 [2022-07-21 05:57:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:57:59,606 INFO L495 AbstractCegarLoop]: Abstraction has 7074 states and 9053 transitions. [2022-07-21 05:57:59,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 29 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 05:57:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7074 states and 9053 transitions. [2022-07-21 05:57:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 05:57:59,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:57:59,608 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, 1, 1, 1, 1, 1, 1] [2022-07-21 05:57:59,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 05:57:59,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-07-21 05:57:59,814 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-21 05:57:59,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:57:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash 481296185, now seen corresponding path program 1 times [2022-07-21 05:57:59,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:57:59,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292269189] [2022-07-21 05:57:59,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:57:59,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:57:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:57:59,997 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:57:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:57:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292269189] [2022-07-21 05:57:59,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292269189] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:57:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115769455] [2022-07-21 05:57:59,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:57:59,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:57:59,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:58:00,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:58:00,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 05:58:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:58:00,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 28 conjunts are in the unsatisfiable core [2022-07-21 05:58:00,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:58:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:01,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:58:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:58:04,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115769455] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:58:04,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:58:04,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 18] total 44 [2022-07-21 05:58:04,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776737284] [2022-07-21 05:58:04,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:58:04,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-07-21 05:58:04,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:58:04,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-07-21 05:58:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1751, Unknown=0, NotChecked=0, Total=1892 [2022-07-21 05:58:04,151 INFO L87 Difference]: Start difference. First operand 7074 states and 9053 transitions. Second operand has 44 states, 44 states have (on average 6.7272727272727275) internal successors, (296), 44 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)