./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5de8a6e48c671522e021c00f8053da339f3153b1fcc0b54263671efa3814086b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:26:06,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:26:06,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:26:06,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:26:06,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:26:06,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:26:06,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:26:06,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:26:06,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:26:06,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:26:06,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:26:06,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:26:06,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:26:06,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:26:06,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:26:06,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:26:06,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:26:06,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:26:06,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:26:06,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:26:06,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:26:06,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:26:06,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:26:06,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:26:06,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:26:06,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:26:06,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:26:06,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:26:06,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:26:06,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:26:06,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:26:06,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:26:06,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:26:06,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:26:06,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:26:06,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:26:06,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:26:06,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:26:06,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:26:06,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:26:06,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:26:06,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:26:06,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:26:06,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:26:06,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:26:06,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:26:06,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:26:06,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:26:06,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:26:06,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:26:06,859 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:26:06,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:26:06,860 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:26:06,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:26:06,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:26:06,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:26:06,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:26:06,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:26:06,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:26:06,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:26:06,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:26:06,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:26:06,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:26:06,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:26:06,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:26:06,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:26:06,864 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:26:06,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:26:06,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:26:06,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:26:06,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5de8a6e48c671522e021c00f8053da339f3153b1fcc0b54263671efa3814086b [2021-12-16 01:26:07,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:26:07,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:26:07,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:26:07,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:26:07,068 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:26:07,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-12-16 01:26:07,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e57e5ad/19c2fabb5c9b4cdbbafe13eb4897f8e5/FLAG930aaba19 [2021-12-16 01:26:07,631 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:26:07,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-12-16 01:26:07,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e57e5ad/19c2fabb5c9b4cdbbafe13eb4897f8e5/FLAG930aaba19 [2021-12-16 01:26:07,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96e57e5ad/19c2fabb5c9b4cdbbafe13eb4897f8e5 [2021-12-16 01:26:07,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:26:07,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:26:07,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:26:07,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:26:07,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:26:07,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:26:07" (1/1) ... [2021-12-16 01:26:07,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e3cd88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:07, skipping insertion in model container [2021-12-16 01:26:07,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:26:07" (1/1) ... [2021-12-16 01:26:07,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:26:07,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:26:08,185 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2021-12-16 01:26:08,202 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2021-12-16 01:26:08,233 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2021-12-16 01:26:08,250 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2021-12-16 01:26:08,294 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2021-12-16 01:26:08,351 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2021-12-16 01:26:08,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:26:08,479 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:26:08,512 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2021-12-16 01:26:08,524 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2021-12-16 01:26:08,562 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2021-12-16 01:26:08,581 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2021-12-16 01:26:08,636 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2021-12-16 01:26:08,674 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-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2021-12-16 01:26:08,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:26:08,756 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:26:08,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08 WrapperNode [2021-12-16 01:26:08,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:26:08,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:26:08,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:26:08,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:26:08,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,880 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5949 [2021-12-16 01:26:08,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:26:08,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:26:08,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:26:08,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:26:08,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:08,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:09,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:09,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:09,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:26:09,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:26:09,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:26:09,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:26:09,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (1/1) ... [2021-12-16 01:26:09,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:26:09,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:26:09,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 01:26:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 01:26:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:26:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:26:09,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:26:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:26:09,289 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:26:09,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:26:11,074 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:26:11,090 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:26:11,091 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:26:11,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:26:11 BoogieIcfgContainer [2021-12-16 01:26:11,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:26:11,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:26:11,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:26:11,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:26:11,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:26:07" (1/3) ... [2021-12-16 01:26:11,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d7d037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:26:11, skipping insertion in model container [2021-12-16 01:26:11,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:26:08" (2/3) ... [2021-12-16 01:26:11,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d7d037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:26:11, skipping insertion in model container [2021-12-16 01:26:11,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:26:11" (3/3) ... [2021-12-16 01:26:11,101 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2021-12-16 01:26:11,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:26:11,105 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-16 01:26:11,149 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:26:11,158 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 01:26:11,158 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-16 01:26:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:11,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-16 01:26:11,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:11,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:11,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 692081489, now seen corresponding path program 1 times [2021-12-16 01:26:11,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:11,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639017722] [2021-12-16 01:26:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:11,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:11,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:11,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639017722] [2021-12-16 01:26:11,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639017722] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:11,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:11,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:26:11,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140206849] [2021-12-16 01:26:11,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:11,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:11,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:11,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:11,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:11,536 INFO L87 Difference]: Start difference. First operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 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 10.4) internal successors, (52), 4 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) [2021-12-16 01:26:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:12,712 INFO L93 Difference]: Finished difference Result 2514 states and 4326 transitions. [2021-12-16 01:26:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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 [2021-12-16 01:26:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:12,729 INFO L225 Difference]: With dead ends: 2514 [2021-12-16 01:26:12,730 INFO L226 Difference]: Without dead ends: 1590 [2021-12-16 01:26:12,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:26:12,737 INFO L933 BasicCegarLoop]: 1054 mSDtfsCounter, 7064 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7064 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:12,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7064 Valid, 1556 Invalid, 1302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [96 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:26:12,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-12-16 01:26:12,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1584. [2021-12-16 01:26:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1578 states have (on average 1.309252217997465) internal successors, (2066), 1583 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2066 transitions. [2021-12-16 01:26:12,817 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2066 transitions. Word has length 52 [2021-12-16 01:26:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:12,817 INFO L470 AbstractCegarLoop]: Abstraction has 1584 states and 2066 transitions. [2021-12-16 01:26:12,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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) [2021-12-16 01:26:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2066 transitions. [2021-12-16 01:26:12,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-16 01:26:12,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:12,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:12,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:26:12,821 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:12,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:12,822 INFO L85 PathProgramCache]: Analyzing trace with hash -736362272, now seen corresponding path program 1 times [2021-12-16 01:26:12,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:12,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497343151] [2021-12-16 01:26:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:12,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:12,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:12,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497343151] [2021-12-16 01:26:12,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497343151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:12,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:12,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:26:12,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447523327] [2021-12-16 01:26:12,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:12,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:12,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:12,914 INFO L87 Difference]: Start difference. First operand 1584 states and 2066 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-12-16 01:26:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:13,650 INFO L93 Difference]: Finished difference Result 3198 states and 4201 transitions. [2021-12-16 01:26:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:13,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 [2021-12-16 01:26:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:13,659 INFO L225 Difference]: With dead ends: 3198 [2021-12-16 01:26:13,659 INFO L226 Difference]: Without dead ends: 2208 [2021-12-16 01:26:13,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:26:13,662 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 4958 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:13,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4958 Valid, 1044 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:26:13,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2021-12-16 01:26:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2194. [2021-12-16 01:26:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2188 states have (on average 1.3194698354661791) internal successors, (2887), 2193 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2887 transitions. [2021-12-16 01:26:13,729 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2887 transitions. Word has length 53 [2021-12-16 01:26:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:13,729 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 2887 transitions. [2021-12-16 01:26:13,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-12-16 01:26:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2887 transitions. [2021-12-16 01:26:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-16 01:26:13,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:13,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:13,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:26:13,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:13,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1386389066, now seen corresponding path program 1 times [2021-12-16 01:26:13,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:13,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144026100] [2021-12-16 01:26:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:13,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:13,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:13,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144026100] [2021-12-16 01:26:13,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144026100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:13,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:13,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:26:13,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921084336] [2021-12-16 01:26:13,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:13,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:13,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:13,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:13,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:13,789 INFO L87 Difference]: Start difference. First operand 2194 states and 2887 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-12-16 01:26:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:14,496 INFO L93 Difference]: Finished difference Result 4499 states and 5989 transitions. [2021-12-16 01:26:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 [2021-12-16 01:26:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:14,507 INFO L225 Difference]: With dead ends: 4499 [2021-12-16 01:26:14,507 INFO L226 Difference]: Without dead ends: 3072 [2021-12-16 01:26:14,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:26:14,513 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 4448 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4448 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:14,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4448 Valid, 932 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:26:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-12-16 01:26:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3062. [2021-12-16 01:26:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3236256544502618) internal successors, (4045), 3061 states have internal predecessors, (4045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4045 transitions. [2021-12-16 01:26:14,624 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4045 transitions. Word has length 53 [2021-12-16 01:26:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:14,624 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 4045 transitions. [2021-12-16 01:26:14,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-12-16 01:26:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4045 transitions. [2021-12-16 01:26:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:26:14,627 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:14,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:14,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:26:14,628 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:14,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1763239895, now seen corresponding path program 1 times [2021-12-16 01:26:14,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:14,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152805221] [2021-12-16 01:26:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:14,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:14,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152805221] [2021-12-16 01:26:14,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152805221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:14,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:14,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:26:14,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091924945] [2021-12-16 01:26:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:14,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:26:14,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:26:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:26:14,753 INFO L87 Difference]: Start difference. First operand 3062 states and 4045 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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) [2021-12-16 01:26:16,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:16,040 INFO L93 Difference]: Finished difference Result 6211 states and 8701 transitions. [2021-12-16 01:26:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 01:26:16,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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 [2021-12-16 01:26:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:16,058 INFO L225 Difference]: With dead ends: 6211 [2021-12-16 01:26:16,058 INFO L226 Difference]: Without dead ends: 5507 [2021-12-16 01:26:16,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-12-16 01:26:16,067 INFO L933 BasicCegarLoop]: 668 mSDtfsCounter, 4654 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:16,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4654 Valid, 2849 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:26:16,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2021-12-16 01:26:16,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 3062. [2021-12-16 01:26:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3232984293193717) internal successors, (4044), 3061 states have internal predecessors, (4044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4044 transitions. [2021-12-16 01:26:16,185 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4044 transitions. Word has length 55 [2021-12-16 01:26:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:16,185 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 4044 transitions. [2021-12-16 01:26:16,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 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) [2021-12-16 01:26:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4044 transitions. [2021-12-16 01:26:16,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:26:16,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:16,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:16,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:26:16,189 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:16,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:16,190 INFO L85 PathProgramCache]: Analyzing trace with hash 622296368, now seen corresponding path program 1 times [2021-12-16 01:26:16,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:16,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396350088] [2021-12-16 01:26:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:16,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:16,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:16,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396350088] [2021-12-16 01:26:16,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396350088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:16,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:16,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:26:16,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708801979] [2021-12-16 01:26:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:26:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:26:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:26:16,318 INFO L87 Difference]: Start difference. First operand 3062 states and 4044 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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) [2021-12-16 01:26:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:18,431 INFO L93 Difference]: Finished difference Result 6227 states and 8541 transitions. [2021-12-16 01:26:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:26:18,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 [2021-12-16 01:26:18,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:18,464 INFO L225 Difference]: With dead ends: 6227 [2021-12-16 01:26:18,465 INFO L226 Difference]: Without dead ends: 5657 [2021-12-16 01:26:18,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:26:18,469 INFO L933 BasicCegarLoop]: 756 mSDtfsCounter, 5950 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5950 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 4199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:18,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5950 Valid, 4084 Invalid, 4199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-16 01:26:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states. [2021-12-16 01:26:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 3062. [2021-12-16 01:26:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3229712041884816) internal successors, (4043), 3061 states have internal predecessors, (4043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:18,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4043 transitions. [2021-12-16 01:26:18,577 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4043 transitions. Word has length 55 [2021-12-16 01:26:18,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:18,578 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 4043 transitions. [2021-12-16 01:26:18,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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) [2021-12-16 01:26:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4043 transitions. [2021-12-16 01:26:18,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-16 01:26:18,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:18,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:18,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:26:18,585 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:18,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:18,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1268497001, now seen corresponding path program 1 times [2021-12-16 01:26:18,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:18,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548973877] [2021-12-16 01:26:18,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:18,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:18,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:18,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:18,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548973877] [2021-12-16 01:26:18,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548973877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:18,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:18,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:26:18,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497871036] [2021-12-16 01:26:18,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:18,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:26:18,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:18,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:26:18,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:26:18,722 INFO L87 Difference]: Start difference. First operand 3062 states and 4043 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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) [2021-12-16 01:26:20,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:20,361 INFO L93 Difference]: Finished difference Result 5701 states and 7865 transitions. [2021-12-16 01:26:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 01:26:20,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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 [2021-12-16 01:26:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:20,378 INFO L225 Difference]: With dead ends: 5701 [2021-12-16 01:26:20,378 INFO L226 Difference]: Without dead ends: 5695 [2021-12-16 01:26:20,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-16 01:26:20,381 INFO L933 BasicCegarLoop]: 692 mSDtfsCounter, 4428 mSDsluCounter, 2920 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4428 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:20,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4428 Valid, 3612 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-16 01:26:20,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-12-16 01:26:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 3062. [2021-12-16 01:26:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 1.3226439790575917) internal successors, (4042), 3061 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 4042 transitions. [2021-12-16 01:26:20,507 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 4042 transitions. Word has length 55 [2021-12-16 01:26:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:20,508 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 4042 transitions. [2021-12-16 01:26:20,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 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) [2021-12-16 01:26:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 4042 transitions. [2021-12-16 01:26:20,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-16 01:26:20,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:20,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:20,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:26:20,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:20,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1662572980, now seen corresponding path program 1 times [2021-12-16 01:26:20,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:20,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498672503] [2021-12-16 01:26:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:20,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:20,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:20,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498672503] [2021-12-16 01:26:20,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498672503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:20,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:20,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:20,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674757845] [2021-12-16 01:26:20,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:20,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:20,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:20,557 INFO L87 Difference]: Start difference. First operand 3062 states and 4042 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:20,725 INFO L93 Difference]: Finished difference Result 4018 states and 5491 transitions. [2021-12-16 01:26:20,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:20,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2021-12-16 01:26:20,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:20,747 INFO L225 Difference]: With dead ends: 4018 [2021-12-16 01:26:20,747 INFO L226 Difference]: Without dead ends: 3081 [2021-12-16 01:26:20,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:20,750 INFO L933 BasicCegarLoop]: 1186 mSDtfsCounter, 579 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:20,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 1790 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2021-12-16 01:26:20,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 3079. [2021-12-16 01:26:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3073 states have (on average 1.33875691506671) internal successors, (4114), 3078 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 4114 transitions. [2021-12-16 01:26:20,851 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 4114 transitions. Word has length 56 [2021-12-16 01:26:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:20,852 INFO L470 AbstractCegarLoop]: Abstraction has 3079 states and 4114 transitions. [2021-12-16 01:26:20,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 4114 transitions. [2021-12-16 01:26:20,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-16 01:26:20,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:20,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:20,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:26:20,857 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:20,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:20,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1775531576, now seen corresponding path program 1 times [2021-12-16 01:26:20,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:20,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580910460] [2021-12-16 01:26:20,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:20,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:20,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:20,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580910460] [2021-12-16 01:26:20,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580910460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:20,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:20,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:20,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616708672] [2021-12-16 01:26:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:20,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:20,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:20,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:20,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:20,913 INFO L87 Difference]: Start difference. First operand 3079 states and 4114 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:21,052 INFO L93 Difference]: Finished difference Result 4753 states and 6649 transitions. [2021-12-16 01:26:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:21,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2021-12-16 01:26:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:21,058 INFO L225 Difference]: With dead ends: 4753 [2021-12-16 01:26:21,058 INFO L226 Difference]: Without dead ends: 3509 [2021-12-16 01:26:21,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:21,061 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 587 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:21,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 1728 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:21,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2021-12-16 01:26:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3507. [2021-12-16 01:26:21,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3501 states have (on average 1.3701799485861184) internal successors, (4797), 3506 states have internal predecessors, (4797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:21,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4797 transitions. [2021-12-16 01:26:21,212 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4797 transitions. Word has length 56 [2021-12-16 01:26:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:21,212 INFO L470 AbstractCegarLoop]: Abstraction has 3507 states and 4797 transitions. [2021-12-16 01:26:21,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4797 transitions. [2021-12-16 01:26:21,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-16 01:26:21,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:21,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:21,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:26:21,214 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:21,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1498951000, now seen corresponding path program 1 times [2021-12-16 01:26:21,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:21,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947715077] [2021-12-16 01:26:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:21,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:21,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:21,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:21,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947715077] [2021-12-16 01:26:21,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947715077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:21,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:21,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:21,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555895997] [2021-12-16 01:26:21,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:21,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:21,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:21,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:21,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:21,255 INFO L87 Difference]: Start difference. First operand 3507 states and 4797 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:21,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:21,493 INFO L93 Difference]: Finished difference Result 7489 states and 10501 transitions. [2021-12-16 01:26:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2021-12-16 01:26:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:21,510 INFO L225 Difference]: With dead ends: 7489 [2021-12-16 01:26:21,511 INFO L226 Difference]: Without dead ends: 5080 [2021-12-16 01:26:21,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:21,517 INFO L933 BasicCegarLoop]: 1215 mSDtfsCounter, 657 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:21,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 1963 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:26:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5080 states. [2021-12-16 01:26:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5080 to 5074. [2021-12-16 01:26:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5074 states, 5068 states have (on average 1.3681925808997633) internal successors, (6934), 5073 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 6934 transitions. [2021-12-16 01:26:21,737 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 6934 transitions. Word has length 56 [2021-12-16 01:26:21,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:21,737 INFO L470 AbstractCegarLoop]: Abstraction has 5074 states and 6934 transitions. [2021-12-16 01:26:21,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2021-12-16 01:26:21,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 6934 transitions. [2021-12-16 01:26:21,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-16 01:26:21,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:21,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:21,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:26:21,740 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:21,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1118792296, now seen corresponding path program 1 times [2021-12-16 01:26:21,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:21,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930349090] [2021-12-16 01:26:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:21,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:21,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:21,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930349090] [2021-12-16 01:26:21,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930349090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:21,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:21,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 01:26:21,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076546585] [2021-12-16 01:26:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:21,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 01:26:21,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 01:26:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:26:21,949 INFO L87 Difference]: Start difference. First operand 5074 states and 6934 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:22,997 INFO L93 Difference]: Finished difference Result 7531 states and 10372 transitions. [2021-12-16 01:26:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 01:26:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-12-16 01:26:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:23,010 INFO L225 Difference]: With dead ends: 7531 [2021-12-16 01:26:23,010 INFO L226 Difference]: Without dead ends: 7431 [2021-12-16 01:26:23,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-12-16 01:26:23,014 INFO L933 BasicCegarLoop]: 1091 mSDtfsCounter, 4641 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 4204 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:23,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 4204 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:26:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7431 states. [2021-12-16 01:26:23,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7431 to 5024. [2021-12-16 01:26:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5024 states, 5020 states have (on average 1.3691235059760956) internal successors, (6873), 5023 states have internal predecessors, (6873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5024 states to 5024 states and 6873 transitions. [2021-12-16 01:26:23,290 INFO L78 Accepts]: Start accepts. Automaton has 5024 states and 6873 transitions. Word has length 57 [2021-12-16 01:26:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:23,290 INFO L470 AbstractCegarLoop]: Abstraction has 5024 states and 6873 transitions. [2021-12-16 01:26:23,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5024 states and 6873 transitions. [2021-12-16 01:26:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-16 01:26:23,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:23,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:23,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 01:26:23,292 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:23,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash -677466950, now seen corresponding path program 1 times [2021-12-16 01:26:23,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:23,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180363045] [2021-12-16 01:26:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:23,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:23,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:23,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180363045] [2021-12-16 01:26:23,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180363045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:23,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:23,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:23,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492575057] [2021-12-16 01:26:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:23,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:23,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:23,321 INFO L87 Difference]: Start difference. First operand 5024 states and 6873 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:23,658 INFO L93 Difference]: Finished difference Result 9434 states and 13129 transitions. [2021-12-16 01:26:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:23,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-12-16 01:26:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:23,666 INFO L225 Difference]: With dead ends: 9434 [2021-12-16 01:26:23,667 INFO L226 Difference]: Without dead ends: 5383 [2021-12-16 01:26:23,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:23,671 INFO L933 BasicCegarLoop]: 783 mSDtfsCounter, 775 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:23,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [775 Valid, 1153 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:26:23,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5383 states. [2021-12-16 01:26:23,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5383 to 4310. [2021-12-16 01:26:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4310 states, 4307 states have (on average 1.3854190852101231) internal successors, (5967), 4309 states have internal predecessors, (5967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4310 states to 4310 states and 5967 transitions. [2021-12-16 01:26:23,875 INFO L78 Accepts]: Start accepts. Automaton has 4310 states and 5967 transitions. Word has length 57 [2021-12-16 01:26:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:23,875 INFO L470 AbstractCegarLoop]: Abstraction has 4310 states and 5967 transitions. [2021-12-16 01:26:23,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4310 states and 5967 transitions. [2021-12-16 01:26:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-16 01:26:23,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:23,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:23,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 01:26:23,878 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash -611117000, now seen corresponding path program 1 times [2021-12-16 01:26:23,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:23,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803169205] [2021-12-16 01:26:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:23,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:23,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:23,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803169205] [2021-12-16 01:26:23,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803169205] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:23,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:23,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:23,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65695340] [2021-12-16 01:26:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:23,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:23,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:23,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:23,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:23,905 INFO L87 Difference]: Start difference. First operand 4310 states and 5967 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:24,182 INFO L93 Difference]: Finished difference Result 8308 states and 11721 transitions. [2021-12-16 01:26:24,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:24,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-12-16 01:26:24,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:24,189 INFO L225 Difference]: With dead ends: 8308 [2021-12-16 01:26:24,189 INFO L226 Difference]: Without dead ends: 4696 [2021-12-16 01:26:24,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:24,195 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 593 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:24,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 881 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states. [2021-12-16 01:26:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 3781. [2021-12-16 01:26:24,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3781 states, 3779 states have (on average 1.3987827467584018) internal successors, (5286), 3780 states have internal predecessors, (5286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3781 states to 3781 states and 5286 transitions. [2021-12-16 01:26:24,396 INFO L78 Accepts]: Start accepts. Automaton has 3781 states and 5286 transitions. Word has length 57 [2021-12-16 01:26:24,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:24,396 INFO L470 AbstractCegarLoop]: Abstraction has 3781 states and 5286 transitions. [2021-12-16 01:26:24,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3781 states and 5286 transitions. [2021-12-16 01:26:24,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-12-16 01:26:24,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:24,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:24,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 01:26:24,398 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:24,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:24,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1274837938, now seen corresponding path program 1 times [2021-12-16 01:26:24,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:24,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853882126] [2021-12-16 01:26:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:24,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:24,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:24,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853882126] [2021-12-16 01:26:24,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853882126] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:24,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:24,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:24,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442245015] [2021-12-16 01:26:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:24,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:24,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:24,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:24,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:24,424 INFO L87 Difference]: Start difference. First operand 3781 states and 5286 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:24,774 INFO L93 Difference]: Finished difference Result 7606 states and 10805 transitions. [2021-12-16 01:26:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:24,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-12-16 01:26:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:24,790 INFO L225 Difference]: With dead ends: 7606 [2021-12-16 01:26:24,790 INFO L226 Difference]: Without dead ends: 4167 [2021-12-16 01:26:24,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:24,795 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 504 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:24,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 863 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:26:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2021-12-16 01:26:24,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 3334. [2021-12-16 01:26:24,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 1.414765906362545) internal successors, (4714), 3333 states have internal predecessors, (4714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4714 transitions. [2021-12-16 01:26:24,972 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4714 transitions. Word has length 57 [2021-12-16 01:26:24,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:24,972 INFO L470 AbstractCegarLoop]: Abstraction has 3334 states and 4714 transitions. [2021-12-16 01:26:24,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4714 transitions. [2021-12-16 01:26:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-16 01:26:24,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:24,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:24,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 01:26:24,974 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:24,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:24,974 INFO L85 PathProgramCache]: Analyzing trace with hash -410378211, now seen corresponding path program 1 times [2021-12-16 01:26:24,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:24,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169655561] [2021-12-16 01:26:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:24,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:25,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169655561] [2021-12-16 01:26:25,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169655561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:25,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:25,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:26:25,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555970433] [2021-12-16 01:26:25,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:25,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:26:25,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:25,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:26:25,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:26:25,226 INFO L87 Difference]: Start difference. First operand 3334 states and 4714 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:27,977 INFO L93 Difference]: Finished difference Result 12103 states and 17159 transitions. [2021-12-16 01:26:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-16 01:26:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-12-16 01:26:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:27,991 INFO L225 Difference]: With dead ends: 12103 [2021-12-16 01:26:27,991 INFO L226 Difference]: Without dead ends: 12024 [2021-12-16 01:26:27,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=440, Invalid=1630, Unknown=0, NotChecked=0, Total=2070 [2021-12-16 01:26:27,994 INFO L933 BasicCegarLoop]: 1048 mSDtfsCounter, 4457 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 8187 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:27,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4457 Valid, 8187 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:26:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12024 states. [2021-12-16 01:26:28,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12024 to 3305. [2021-12-16 01:26:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3304 states have (on average 1.4155569007263922) internal successors, (4677), 3304 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:28,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4677 transitions. [2021-12-16 01:26:28,247 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4677 transitions. Word has length 58 [2021-12-16 01:26:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:28,247 INFO L470 AbstractCegarLoop]: Abstraction has 3305 states and 4677 transitions. [2021-12-16 01:26:28,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4677 transitions. [2021-12-16 01:26:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-16 01:26:28,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:28,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:28,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 01:26:28,249 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:28,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:28,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1327663405, now seen corresponding path program 1 times [2021-12-16 01:26:28,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:28,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855523995] [2021-12-16 01:26:28,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:28,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:28,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:28,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855523995] [2021-12-16 01:26:28,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855523995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:28,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:28,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:26:28,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342874845] [2021-12-16 01:26:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:28,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:28,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:28,293 INFO L87 Difference]: Start difference. First operand 3305 states and 4677 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:28,902 INFO L93 Difference]: Finished difference Result 10423 states and 15071 transitions. [2021-12-16 01:26:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:28,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-12-16 01:26:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:28,912 INFO L225 Difference]: With dead ends: 10423 [2021-12-16 01:26:28,912 INFO L226 Difference]: Without dead ends: 7637 [2021-12-16 01:26:28,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:26:28,917 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 1582 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:28,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1582 Valid, 952 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7637 states. [2021-12-16 01:26:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7637 to 5781. [2021-12-16 01:26:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5781 states, 5780 states have (on average 1.41401384083045) internal successors, (8173), 5780 states have internal predecessors, (8173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5781 states to 5781 states and 8173 transitions. [2021-12-16 01:26:29,352 INFO L78 Accepts]: Start accepts. Automaton has 5781 states and 8173 transitions. Word has length 66 [2021-12-16 01:26:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:29,352 INFO L470 AbstractCegarLoop]: Abstraction has 5781 states and 8173 transitions. [2021-12-16 01:26:29,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:29,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5781 states and 8173 transitions. [2021-12-16 01:26:29,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-16 01:26:29,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:29,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:29,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 01:26:29,355 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:29,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2106166862, now seen corresponding path program 1 times [2021-12-16 01:26:29,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:29,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536450877] [2021-12-16 01:26:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:29,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:29,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:29,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536450877] [2021-12-16 01:26:29,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536450877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:29,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:29,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:26:29,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19014067] [2021-12-16 01:26:29,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:29,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:29,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:29,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:29,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:29,402 INFO L87 Difference]: Start difference. First operand 5781 states and 8173 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:29,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:29,768 INFO L93 Difference]: Finished difference Result 9087 states and 12892 transitions. [2021-12-16 01:26:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:29,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-12-16 01:26:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:29,772 INFO L225 Difference]: With dead ends: 9087 [2021-12-16 01:26:29,772 INFO L226 Difference]: Without dead ends: 3803 [2021-12-16 01:26:29,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:29,777 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 912 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:29,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 771 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:29,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2021-12-16 01:26:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3799. [2021-12-16 01:26:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3799 states, 3798 states have (on average 1.3886255924170616) internal successors, (5274), 3798 states have internal predecessors, (5274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3799 states to 3799 states and 5274 transitions. [2021-12-16 01:26:30,077 INFO L78 Accepts]: Start accepts. Automaton has 3799 states and 5274 transitions. Word has length 67 [2021-12-16 01:26:30,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:30,077 INFO L470 AbstractCegarLoop]: Abstraction has 3799 states and 5274 transitions. [2021-12-16 01:26:30,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:30,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3799 states and 5274 transitions. [2021-12-16 01:26:30,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-16 01:26:30,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:30,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:30,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 01:26:30,079 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:30,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:30,080 INFO L85 PathProgramCache]: Analyzing trace with hash -565252104, now seen corresponding path program 1 times [2021-12-16 01:26:30,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:30,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603015786] [2021-12-16 01:26:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:30,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:30,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603015786] [2021-12-16 01:26:30,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603015786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:30,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:30,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:30,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605075064] [2021-12-16 01:26:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:30,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:30,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:30,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:30,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:30,117 INFO L87 Difference]: Start difference. First operand 3799 states and 5274 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:30,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:30,696 INFO L93 Difference]: Finished difference Result 10089 states and 14200 transitions. [2021-12-16 01:26:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:30,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-12-16 01:26:30,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:30,704 INFO L225 Difference]: With dead ends: 10089 [2021-12-16 01:26:30,705 INFO L226 Difference]: Without dead ends: 6787 [2021-12-16 01:26:30,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:30,710 INFO L933 BasicCegarLoop]: 535 mSDtfsCounter, 253 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:30,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 808 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:30,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6787 states. [2021-12-16 01:26:31,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6787 to 6369. [2021-12-16 01:26:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6369 states, 6368 states have (on average 1.391645728643216) internal successors, (8862), 6368 states have internal predecessors, (8862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6369 states to 6369 states and 8862 transitions. [2021-12-16 01:26:31,328 INFO L78 Accepts]: Start accepts. Automaton has 6369 states and 8862 transitions. Word has length 69 [2021-12-16 01:26:31,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:31,329 INFO L470 AbstractCegarLoop]: Abstraction has 6369 states and 8862 transitions. [2021-12-16 01:26:31,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:31,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6369 states and 8862 transitions. [2021-12-16 01:26:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-16 01:26:31,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:31,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:31,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 01:26:31,330 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash -195732182, now seen corresponding path program 1 times [2021-12-16 01:26:31,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:31,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597369491] [2021-12-16 01:26:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:31,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:31,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:31,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597369491] [2021-12-16 01:26:31,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597369491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:31,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:31,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:31,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868705444] [2021-12-16 01:26:31,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:31,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:31,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:31,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:31,363 INFO L87 Difference]: Start difference. First operand 6369 states and 8862 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:32,391 INFO L93 Difference]: Finished difference Result 17487 states and 24458 transitions. [2021-12-16 01:26:32,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:32,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-16 01:26:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:32,404 INFO L225 Difference]: With dead ends: 17487 [2021-12-16 01:26:32,405 INFO L226 Difference]: Without dead ends: 11599 [2021-12-16 01:26:32,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:32,410 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 288 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:32,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 777 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11599 states. [2021-12-16 01:26:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11599 to 10765. [2021-12-16 01:26:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10765 states, 10764 states have (on average 1.3831289483463396) internal successors, (14888), 10764 states have internal predecessors, (14888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:33,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 14888 transitions. [2021-12-16 01:26:33,355 INFO L78 Accepts]: Start accepts. Automaton has 10765 states and 14888 transitions. Word has length 72 [2021-12-16 01:26:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:33,355 INFO L470 AbstractCegarLoop]: Abstraction has 10765 states and 14888 transitions. [2021-12-16 01:26:33,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 10765 states and 14888 transitions. [2021-12-16 01:26:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-16 01:26:33,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:33,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:33,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 01:26:33,357 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:33,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash 950824169, now seen corresponding path program 1 times [2021-12-16 01:26:33,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:33,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318898125] [2021-12-16 01:26:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:33,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:33,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:33,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:33,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318898125] [2021-12-16 01:26:33,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318898125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:33,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:33,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:26:33,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974699124] [2021-12-16 01:26:33,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:33,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:26:33,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:33,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:26:33,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:26:33,402 INFO L87 Difference]: Start difference. First operand 10765 states and 14888 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:35,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:35,681 INFO L93 Difference]: Finished difference Result 22724 states and 31031 transitions. [2021-12-16 01:26:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:26:35,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-16 01:26:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:35,711 INFO L225 Difference]: With dead ends: 22724 [2021-12-16 01:26:35,712 INFO L226 Difference]: Without dead ends: 22722 [2021-12-16 01:26:35,718 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:26:35,719 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 584 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:35,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 2140 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:35,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22722 states. [2021-12-16 01:26:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22722 to 11653. [2021-12-16 01:26:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11653 states, 11652 states have (on average 1.3539306556814281) internal successors, (15776), 11652 states have internal predecessors, (15776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11653 states to 11653 states and 15776 transitions. [2021-12-16 01:26:37,014 INFO L78 Accepts]: Start accepts. Automaton has 11653 states and 15776 transitions. Word has length 72 [2021-12-16 01:26:37,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:37,014 INFO L470 AbstractCegarLoop]: Abstraction has 11653 states and 15776 transitions. [2021-12-16 01:26:37,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:37,015 INFO L276 IsEmpty]: Start isEmpty. Operand 11653 states and 15776 transitions. [2021-12-16 01:26:37,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 01:26:37,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:37,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:37,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 01:26:37,017 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:37,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash -467379378, now seen corresponding path program 1 times [2021-12-16 01:26:37,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:37,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153115427] [2021-12-16 01:26:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:37,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:37,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:37,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153115427] [2021-12-16 01:26:37,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153115427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:37,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:37,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:37,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452885026] [2021-12-16 01:26:37,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:37,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:37,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:37,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:37,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:37,057 INFO L87 Difference]: Start difference. First operand 11653 states and 15776 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:39,331 INFO L93 Difference]: Finished difference Result 31554 states and 42747 transitions. [2021-12-16 01:26:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:39,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-16 01:26:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:39,357 INFO L225 Difference]: With dead ends: 31554 [2021-12-16 01:26:39,358 INFO L226 Difference]: Without dead ends: 20384 [2021-12-16 01:26:39,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:39,374 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 280 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:39,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 739 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:39,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2021-12-16 01:26:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20382. [2021-12-16 01:26:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20382 states, 20381 states have (on average 1.3350179088366616) internal successors, (27209), 20381 states have internal predecessors, (27209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20382 states to 20382 states and 27209 transitions. [2021-12-16 01:26:41,533 INFO L78 Accepts]: Start accepts. Automaton has 20382 states and 27209 transitions. Word has length 73 [2021-12-16 01:26:41,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:41,534 INFO L470 AbstractCegarLoop]: Abstraction has 20382 states and 27209 transitions. [2021-12-16 01:26:41,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 20382 states and 27209 transitions. [2021-12-16 01:26:41,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 01:26:41,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:41,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:41,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 01:26:41,536 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:41,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:41,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1772479294, now seen corresponding path program 1 times [2021-12-16 01:26:41,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:41,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50584058] [2021-12-16 01:26:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:41,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:41,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:41,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50584058] [2021-12-16 01:26:41,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50584058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:41,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:41,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:26:41,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673592068] [2021-12-16 01:26:41,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:41,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:26:41,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:26:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:41,569 INFO L87 Difference]: Start difference. First operand 20382 states and 27209 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) [2021-12-16 01:26:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:44,943 INFO L93 Difference]: Finished difference Result 38964 states and 52561 transitions. [2021-12-16 01:26:44,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:26:44,943 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 [2021-12-16 01:26:44,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:44,984 INFO L225 Difference]: With dead ends: 38964 [2021-12-16 01:26:44,984 INFO L226 Difference]: Without dead ends: 28570 [2021-12-16 01:26:45,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:26:45,002 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 364 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:45,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 642 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28570 states. [2021-12-16 01:26:47,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28570 to 28568. [2021-12-16 01:26:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28568 states, 28567 states have (on average 1.3367521965904716) internal successors, (38187), 28567 states have internal predecessors, (38187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28568 states to 28568 states and 38187 transitions. [2021-12-16 01:26:48,010 INFO L78 Accepts]: Start accepts. Automaton has 28568 states and 38187 transitions. Word has length 77 [2021-12-16 01:26:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:48,010 INFO L470 AbstractCegarLoop]: Abstraction has 28568 states and 38187 transitions. [2021-12-16 01:26:48,010 INFO L471 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) [2021-12-16 01:26:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 28568 states and 38187 transitions. [2021-12-16 01:26:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-16 01:26:48,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:48,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-16 01:26:48,014 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1003850221, now seen corresponding path program 1 times [2021-12-16 01:26:48,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:48,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590897583] [2021-12-16 01:26:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:48,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:48,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:48,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590897583] [2021-12-16 01:26:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590897583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:48,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:48,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:26:48,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256566341] [2021-12-16 01:26:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:48,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:26:48,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:26:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:26:48,077 INFO L87 Difference]: Start difference. First operand 28568 states and 38187 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:26:52,613 INFO L93 Difference]: Finished difference Result 51754 states and 69110 transitions. [2021-12-16 01:26:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:26:52,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-12-16 01:26:52,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:26:52,673 INFO L225 Difference]: With dead ends: 51754 [2021-12-16 01:26:52,673 INFO L226 Difference]: Without dead ends: 39800 [2021-12-16 01:26:52,697 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:26:52,698 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 993 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:26:52,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 1247 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:26:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39800 states. [2021-12-16 01:26:56,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39800 to 32592. [2021-12-16 01:26:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32592 states, 32591 states have (on average 1.3291706299285078) internal successors, (43319), 32591 states have internal predecessors, (43319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32592 states to 32592 states and 43319 transitions. [2021-12-16 01:26:56,443 INFO L78 Accepts]: Start accepts. Automaton has 32592 states and 43319 transitions. Word has length 85 [2021-12-16 01:26:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:26:56,444 INFO L470 AbstractCegarLoop]: Abstraction has 32592 states and 43319 transitions. [2021-12-16 01:26:56,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:26:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 32592 states and 43319 transitions. [2021-12-16 01:26:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 01:26:56,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:26:56,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:26:56,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-16 01:26:56,447 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:26:56,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:26:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash 747174186, now seen corresponding path program 1 times [2021-12-16 01:26:56,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:26:56,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599086724] [2021-12-16 01:26:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:26:56,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:26:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:26:56,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:26:56,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:26:56,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599086724] [2021-12-16 01:26:56,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599086724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:26:56,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:26:56,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:26:56,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79390721] [2021-12-16 01:26:56,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:26:56,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 01:26:56,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:26:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 01:26:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:26:56,500 INFO L87 Difference]: Start difference. First operand 32592 states and 43319 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:27:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:27:01,733 INFO L93 Difference]: Finished difference Result 41316 states and 54771 transitions. [2021-12-16 01:27:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 01:27:01,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2021-12-16 01:27:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:27:01,790 INFO L225 Difference]: With dead ends: 41316 [2021-12-16 01:27:01,790 INFO L226 Difference]: Without dead ends: 40494 [2021-12-16 01:27:01,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-12-16 01:27:01,803 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 2043 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:27:01,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2043 Valid, 709 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:27:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40494 states. [2021-12-16 01:27:05,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40494 to 32590. [2021-12-16 01:27:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32590 states, 32589 states have (on average 1.3291294608610267) internal successors, (43315), 32589 states have internal predecessors, (43315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:27:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32590 states to 32590 states and 43315 transitions. [2021-12-16 01:27:05,590 INFO L78 Accepts]: Start accepts. Automaton has 32590 states and 43315 transitions. Word has length 86 [2021-12-16 01:27:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:27:05,590 INFO L470 AbstractCegarLoop]: Abstraction has 32590 states and 43315 transitions. [2021-12-16 01:27:05,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:27:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 32590 states and 43315 transitions. [2021-12-16 01:27:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:27:05,598 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:27:05,598 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 01:27:05,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-16 01:27:05,598 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-12-16 01:27:05,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:27:05,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1313750202, now seen corresponding path program 1 times [2021-12-16 01:27:05,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:27:05,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103053377] [2021-12-16 01:27:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:27:05,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:27:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:27:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-16 01:27:05,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:27:05,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103053377] [2021-12-16 01:27:05,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103053377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:27:05,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:27:05,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:27:05,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977484565] [2021-12-16 01:27:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:27:05,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:27:05,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:27:05,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:27:05,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:27:05,673 INFO L87 Difference]: Start difference. First operand 32590 states and 43315 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:27:13,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:27:13,717 INFO L93 Difference]: Finished difference Result 76561 states and 101446 transitions. [2021-12-16 01:27:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:27:13,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:27:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:27:13,829 INFO L225 Difference]: With dead ends: 76561 [2021-12-16 01:27:13,829 INFO L226 Difference]: Without dead ends: 61979 [2021-12-16 01:27:13,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:27:13,853 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 2196 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:27:13,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2196 Valid, 1034 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:27:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61979 states.