./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1b965f33911949d5293afac2c8bd242d07bfd4e9981eefc7864b2608138df3f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:44:18,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:44:18,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:44:18,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:44:18,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:44:18,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:44:18,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:44:18,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:44:18,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:44:18,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:44:18,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:44:18,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:44:18,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:44:18,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:44:18,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:44:18,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:44:18,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:44:18,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:44:18,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:44:18,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:44:18,780 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:44:18,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:44:18,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:44:18,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:44:18,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:44:18,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:44:18,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:44:18,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:44:18,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:44:18,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:44:18,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:44:18,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:44:18,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:44:18,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:44:18,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:44:18,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:44:18,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:44:18,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:44:18,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:44:18,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:44:18,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:44:18,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:44:18,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:44:18,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:44:18,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:44:18,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:44:18,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:44:18,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:44:18,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:44:18,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:44:18,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:44:18,834 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:44:18,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:44:18,835 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:44:18,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:44:18,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:44:18,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:44:18,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:44:18,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:44:18,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:44:18,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:44:18,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:44:18,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:44:18,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:44:18,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:44:18,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:44:18,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:44:18,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:44:18,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:44:18,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:44:18,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:44:18,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:44:18,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:44:18,840 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:44:18,840 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:44:18,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:44:18,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b965f33911949d5293afac2c8bd242d07bfd4e9981eefc7864b2608138df3f [2022-07-13 18:44:19,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:44:19,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:44:19,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:44:19,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:44:19,103 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:44:19,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-13 18:44:19,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfbade2/f22fc346ad2546fc839810af457ea6d3/FLAG08c80262c [2022-07-13 18:44:19,740 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:44:19,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-13 18:44:19,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfbade2/f22fc346ad2546fc839810af457ea6d3/FLAG08c80262c [2022-07-13 18:44:20,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfbade2/f22fc346ad2546fc839810af457ea6d3 [2022-07-13 18:44:20,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:44:20,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:44:20,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:44:20,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:44:20,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:44:20,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:44:20" (1/1) ... [2022-07-13 18:44:20,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657cbd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:20, skipping insertion in model container [2022-07-13 18:44:20,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:44:20" (1/1) ... [2022-07-13 18:44:20,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:44:20,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:44:20,626 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11900,11913] [2022-07-13 18:44:20,687 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18638,18651] [2022-07-13 18:44:20,695 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20836,20849] [2022-07-13 18:44:20,700 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21913,21926] [2022-07-13 18:44:20,713 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25266,25279] [2022-07-13 18:44:20,718 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26346,26359] [2022-07-13 18:44:20,729 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28575,28588] [2022-07-13 18:44:21,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:44:21,185 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:44:21,234 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11900,11913] [2022-07-13 18:44:21,252 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18638,18651] [2022-07-13 18:44:21,258 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20836,20849] [2022-07-13 18:44:21,262 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21913,21926] [2022-07-13 18:44:21,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25266,25279] [2022-07-13 18:44:21,271 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26346,26359] [2022-07-13 18:44:21,276 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.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28575,28588] [2022-07-13 18:44:21,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:44:21,507 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:44:21,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21 WrapperNode [2022-07-13 18:44:21,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:44:21,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:44:21,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:44:21,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:44:21,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,703 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6527 [2022-07-13 18:44:21,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:44:21,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:44:21,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:44:21,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:44:21,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:44:21,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:44:21,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:44:21,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:44:21,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (1/1) ... [2022-07-13 18:44:21,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:44:21,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:44:21,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 18:44:21,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 18:44:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:44:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:44:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:44:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:44:22,280 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:44:22,282 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:44:24,609 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:44:24,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:44:24,628 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 18:44:24,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:44:24 BoogieIcfgContainer [2022-07-13 18:44:24,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:44:24,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:44:24,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:44:24,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:44:24,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:44:20" (1/3) ... [2022-07-13 18:44:24,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c02cad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:44:24, skipping insertion in model container [2022-07-13 18:44:24,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:44:21" (2/3) ... [2022-07-13 18:44:24,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c02cad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:44:24, skipping insertion in model container [2022-07-13 18:44:24,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:44:24" (3/3) ... [2022-07-13 18:44:24,640 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-07-13 18:44:24,676 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:44:24,676 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-07-13 18:44:24,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:44:24,740 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d13ecd3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c30d855 [2022-07-13 18:44:24,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 18:44:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-13 18:44:24,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:24,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:24,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:24,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:24,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1027637325, now seen corresponding path program 1 times [2022-07-13 18:44:24,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:24,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083368169] [2022-07-13 18:44:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:24,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:25,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:25,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083368169] [2022-07-13 18:44:25,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083368169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:25,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:25,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:44:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547307549] [2022-07-13 18:44:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:44:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:25,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:44:25,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:44:25,223 INFO L87 Difference]: Start difference. First operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 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 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:26,007 INFO L93 Difference]: Finished difference Result 1791 states and 3276 transitions. [2022-07-13 18:44:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:44:26,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-13 18:44:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:26,075 INFO L225 Difference]: With dead ends: 1791 [2022-07-13 18:44:26,077 INFO L226 Difference]: Without dead ends: 988 [2022-07-13 18:44:26,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:26,085 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 5036 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5036 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:26,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5036 Valid, 1251 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:44:26,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-07-13 18:44:26,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 980. [2022-07-13 18:44:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 973 states have (on average 1.3473792394655704) internal successors, (1311), 979 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1311 transitions. [2022-07-13 18:44:26,173 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1311 transitions. Word has length 63 [2022-07-13 18:44:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:26,174 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 1311 transitions. [2022-07-13 18:44:26,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1311 transitions. [2022-07-13 18:44:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 18:44:26,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:26,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:26,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 18:44:26,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash 517550277, now seen corresponding path program 1 times [2022-07-13 18:44:26,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:26,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429074339] [2022-07-13 18:44:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:26,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:26,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:26,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429074339] [2022-07-13 18:44:26,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429074339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:26,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:26,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:44:26,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848985357] [2022-07-13 18:44:26,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:26,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:44:26,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:44:26,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:26,309 INFO L87 Difference]: Start difference. First operand 980 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:26,381 INFO L93 Difference]: Finished difference Result 1944 states and 2688 transitions. [2022-07-13 18:44:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:44:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-13 18:44:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:26,392 INFO L225 Difference]: With dead ends: 1944 [2022-07-13 18:44:26,392 INFO L226 Difference]: Without dead ends: 1551 [2022-07-13 18:44:26,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:26,396 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 896 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:26,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2138 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:44:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-07-13 18:44:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1542. [2022-07-13 18:44:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1535 states have (on average 1.358957654723127) internal successors, (2086), 1541 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2086 transitions. [2022-07-13 18:44:26,467 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2086 transitions. Word has length 64 [2022-07-13 18:44:26,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:26,468 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 2086 transitions. [2022-07-13 18:44:26,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2086 transitions. [2022-07-13 18:44:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 18:44:26,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:26,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:26,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 18:44:26,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1546123801, now seen corresponding path program 1 times [2022-07-13 18:44:26,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:26,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688548062] [2022-07-13 18:44:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:26,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:26,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:26,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688548062] [2022-07-13 18:44:26,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688548062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:26,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:26,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:44:26,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136314503] [2022-07-13 18:44:26,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:26,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:44:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:26,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:44:26,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:26,662 INFO L87 Difference]: Start difference. First operand 1542 states and 2086 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:26,822 INFO L93 Difference]: Finished difference Result 2563 states and 3607 transitions. [2022-07-13 18:44:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:44:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-13 18:44:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:26,831 INFO L225 Difference]: With dead ends: 2563 [2022-07-13 18:44:26,832 INFO L226 Difference]: Without dead ends: 2064 [2022-07-13 18:44:26,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:26,836 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 533 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:26,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1867 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:44:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2022-07-13 18:44:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2056. [2022-07-13 18:44:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2049 states have (on average 1.3831137140068326) internal successors, (2834), 2055 states have internal predecessors, (2834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2834 transitions. [2022-07-13 18:44:26,945 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2834 transitions. Word has length 64 [2022-07-13 18:44:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:26,946 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 2834 transitions. [2022-07-13 18:44:26,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2834 transitions. [2022-07-13 18:44:26,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 18:44:26,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:26,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:26,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 18:44:26,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1930220714, now seen corresponding path program 1 times [2022-07-13 18:44:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:26,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145909273] [2022-07-13 18:44:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:26,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:27,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:27,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145909273] [2022-07-13 18:44:27,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145909273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:27,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:27,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:44:27,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171114153] [2022-07-13 18:44:27,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:27,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:44:27,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:27,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:44:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:27,058 INFO L87 Difference]: Start difference. First operand 2056 states and 2834 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:27,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:27,236 INFO L93 Difference]: Finished difference Result 3948 states and 5626 transitions. [2022-07-13 18:44:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:44:27,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-13 18:44:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:27,248 INFO L225 Difference]: With dead ends: 3948 [2022-07-13 18:44:27,249 INFO L226 Difference]: Without dead ends: 2914 [2022-07-13 18:44:27,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:27,257 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 554 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:27,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1799 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:44:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-07-13 18:44:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2906. [2022-07-13 18:44:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2899 states have (on average 1.3997930320800276) internal successors, (4058), 2905 states have internal predecessors, (4058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 4058 transitions. [2022-07-13 18:44:27,391 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 4058 transitions. Word has length 64 [2022-07-13 18:44:27,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:27,391 INFO L495 AbstractCegarLoop]: Abstraction has 2906 states and 4058 transitions. [2022-07-13 18:44:27,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 4058 transitions. [2022-07-13 18:44:27,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 18:44:27,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:27,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:27,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 18:44:27,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:27,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:27,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1847708861, now seen corresponding path program 1 times [2022-07-13 18:44:27,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:27,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107238532] [2022-07-13 18:44:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:27,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:27,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:27,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107238532] [2022-07-13 18:44:27,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107238532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:27,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:27,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:44:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281159004] [2022-07-13 18:44:27,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:27,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:44:27,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:44:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:44:27,467 INFO L87 Difference]: Start difference. First operand 2906 states and 4058 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:28,050 INFO L93 Difference]: Finished difference Result 5727 states and 8108 transitions. [2022-07-13 18:44:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:44:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-13 18:44:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:28,063 INFO L225 Difference]: With dead ends: 5727 [2022-07-13 18:44:28,064 INFO L226 Difference]: Without dead ends: 3425 [2022-07-13 18:44:28,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:28,068 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3035 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:28,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 692 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 18:44:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2022-07-13 18:44:28,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 3409. [2022-07-13 18:44:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3402 states have (on average 1.39564961787184) internal successors, (4748), 3408 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4748 transitions. [2022-07-13 18:44:28,270 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4748 transitions. Word has length 64 [2022-07-13 18:44:28,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:28,270 INFO L495 AbstractCegarLoop]: Abstraction has 3409 states and 4748 transitions. [2022-07-13 18:44:28,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:28,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4748 transitions. [2022-07-13 18:44:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-13 18:44:28,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:28,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:28,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 18:44:28,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1685345629, now seen corresponding path program 1 times [2022-07-13 18:44:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:28,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939286352] [2022-07-13 18:44:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:28,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:28,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939286352] [2022-07-13 18:44:28,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939286352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:28,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:28,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:44:28,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469573267] [2022-07-13 18:44:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:28,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:44:28,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:44:28,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:44:28,348 INFO L87 Difference]: Start difference. First operand 3409 states and 4748 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:29,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:29,007 INFO L93 Difference]: Finished difference Result 8321 states and 11858 transitions. [2022-07-13 18:44:29,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:44:29,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-13 18:44:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:29,027 INFO L225 Difference]: With dead ends: 8321 [2022-07-13 18:44:29,027 INFO L226 Difference]: Without dead ends: 5201 [2022-07-13 18:44:29,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:29,036 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2710 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 644 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 18:44:29,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5201 states. [2022-07-13 18:44:29,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5201 to 5193. [2022-07-13 18:44:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5186 states have (on average 1.4251831854994215) internal successors, (7391), 5192 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 7391 transitions. [2022-07-13 18:44:29,357 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 7391 transitions. Word has length 64 [2022-07-13 18:44:29,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:29,358 INFO L495 AbstractCegarLoop]: Abstraction has 5193 states and 7391 transitions. [2022-07-13 18:44:29,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:29,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 7391 transitions. [2022-07-13 18:44:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-13 18:44:29,363 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:29,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:29,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 18:44:29,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:29,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:29,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1051430303, now seen corresponding path program 1 times [2022-07-13 18:44:29,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:29,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361361320] [2022-07-13 18:44:29,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:29,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:29,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:29,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361361320] [2022-07-13 18:44:29,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361361320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:29,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:29,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:44:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428430880] [2022-07-13 18:44:29,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:29,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:44:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:29,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:44:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:29,443 INFO L87 Difference]: Start difference. First operand 5193 states and 7391 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:29,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:29,836 INFO L93 Difference]: Finished difference Result 11227 states and 16123 transitions. [2022-07-13 18:44:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:44:29,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-07-13 18:44:29,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:29,863 INFO L225 Difference]: With dead ends: 11227 [2022-07-13 18:44:29,864 INFO L226 Difference]: Without dead ends: 7168 [2022-07-13 18:44:29,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:44:29,872 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 584 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:29,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1525 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:44:29,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2022-07-13 18:44:30,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7136. [2022-07-13 18:44:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 7129 states have (on average 1.4025810071538785) internal successors, (9999), 7135 states have internal predecessors, (9999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 9999 transitions. [2022-07-13 18:44:30,344 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 9999 transitions. Word has length 65 [2022-07-13 18:44:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:30,345 INFO L495 AbstractCegarLoop]: Abstraction has 7136 states and 9999 transitions. [2022-07-13 18:44:30,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 9999 transitions. [2022-07-13 18:44:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-13 18:44:30,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:30,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:30,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 18:44:30,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:30,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1899148000, now seen corresponding path program 1 times [2022-07-13 18:44:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:30,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563704172] [2022-07-13 18:44:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:30,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:30,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:30,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563704172] [2022-07-13 18:44:30,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563704172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:30,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:30,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 18:44:30,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101701021] [2022-07-13 18:44:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:30,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:44:30,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:44:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:44:30,426 INFO L87 Difference]: Start difference. First operand 7136 states and 9999 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:31,308 INFO L93 Difference]: Finished difference Result 16263 states and 22960 transitions. [2022-07-13 18:44:31,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:44:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-07-13 18:44:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:31,341 INFO L225 Difference]: With dead ends: 16263 [2022-07-13 18:44:31,342 INFO L226 Difference]: Without dead ends: 9563 [2022-07-13 18:44:31,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:31,356 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2370 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:31,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 577 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 18:44:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9563 states. [2022-07-13 18:44:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9563 to 9519. [2022-07-13 18:44:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9519 states, 9512 states have (on average 1.403174936921783) internal successors, (13347), 9518 states have internal predecessors, (13347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9519 states to 9519 states and 13347 transitions. [2022-07-13 18:44:31,877 INFO L78 Accepts]: Start accepts. Automaton has 9519 states and 13347 transitions. Word has length 66 [2022-07-13 18:44:31,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:31,878 INFO L495 AbstractCegarLoop]: Abstraction has 9519 states and 13347 transitions. [2022-07-13 18:44:31,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 9519 states and 13347 transitions. [2022-07-13 18:44:31,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 18:44:31,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:31,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:31,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 18:44:31,891 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:31,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1449474395, now seen corresponding path program 1 times [2022-07-13 18:44:31,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:31,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351556210] [2022-07-13 18:44:31,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:31,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:31,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351556210] [2022-07-13 18:44:31,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351556210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:31,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:31,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:44:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546547097] [2022-07-13 18:44:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:31,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:44:31,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:44:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:31,992 INFO L87 Difference]: Start difference. First operand 9519 states and 13347 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:34,288 INFO L93 Difference]: Finished difference Result 33506 states and 47793 transitions. [2022-07-13 18:44:34,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:44:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-07-13 18:44:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:34,362 INFO L225 Difference]: With dead ends: 33506 [2022-07-13 18:44:34,363 INFO L226 Difference]: Without dead ends: 28926 [2022-07-13 18:44:34,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:44:34,380 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 4327 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4327 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:34,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4327 Valid, 1064 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:44:34,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28926 states. [2022-07-13 18:44:35,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28926 to 9547. [2022-07-13 18:44:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9547 states, 9540 states have (on average 1.4028301886792454) internal successors, (13383), 9546 states have internal predecessors, (13383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:35,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9547 states to 9547 states and 13383 transitions. [2022-07-13 18:44:35,403 INFO L78 Accepts]: Start accepts. Automaton has 9547 states and 13383 transitions. Word has length 67 [2022-07-13 18:44:35,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:35,403 INFO L495 AbstractCegarLoop]: Abstraction has 9547 states and 13383 transitions. [2022-07-13 18:44:35,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9547 states and 13383 transitions. [2022-07-13 18:44:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 18:44:35,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:35,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:35,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 18:44:35,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:35,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:35,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1861181409, now seen corresponding path program 1 times [2022-07-13 18:44:35,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:35,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313509052] [2022-07-13 18:44:35,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:35,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:35,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:35,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313509052] [2022-07-13 18:44:35,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313509052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:35,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:35,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:44:35,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912634072] [2022-07-13 18:44:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:35,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:44:35,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:44:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:35,492 INFO L87 Difference]: Start difference. First operand 9547 states and 13383 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:38,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:38,983 INFO L93 Difference]: Finished difference Result 37142 states and 53195 transitions. [2022-07-13 18:44:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:44:38,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-07-13 18:44:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:39,066 INFO L225 Difference]: With dead ends: 37142 [2022-07-13 18:44:39,067 INFO L226 Difference]: Without dead ends: 33010 [2022-07-13 18:44:39,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:44:39,084 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 3203 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3203 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:39,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3203 Valid, 1236 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:44:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33010 states. [2022-07-13 18:44:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33010 to 9618. [2022-07-13 18:44:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9618 states, 9611 states have (on average 1.4027676620538965) internal successors, (13482), 9617 states have internal predecessors, (13482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 13482 transitions. [2022-07-13 18:44:40,091 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 13482 transitions. Word has length 67 [2022-07-13 18:44:40,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:40,091 INFO L495 AbstractCegarLoop]: Abstraction has 9618 states and 13482 transitions. [2022-07-13 18:44:40,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 13482 transitions. [2022-07-13 18:44:40,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 18:44:40,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:40,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:40,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 18:44:40,105 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2008504829, now seen corresponding path program 1 times [2022-07-13 18:44:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:40,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4755265] [2022-07-13 18:44:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:40,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:40,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:40,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4755265] [2022-07-13 18:44:40,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4755265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:40,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:40,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:44:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37973789] [2022-07-13 18:44:40,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:40,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:44:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:44:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:40,195 INFO L87 Difference]: Start difference. First operand 9618 states and 13482 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:45,141 INFO L93 Difference]: Finished difference Result 47236 states and 67639 transitions. [2022-07-13 18:44:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:44:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-07-13 18:44:45,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:45,232 INFO L225 Difference]: With dead ends: 47236 [2022-07-13 18:44:45,232 INFO L226 Difference]: Without dead ends: 43693 [2022-07-13 18:44:45,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:44:45,256 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 4911 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:45,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4911 Valid, 1130 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:44:45,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43693 states. [2022-07-13 18:44:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43693 to 9686. [2022-07-13 18:44:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9686 states, 9679 states have (on average 1.4020043392912491) internal successors, (13570), 9685 states have internal predecessors, (13570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9686 states to 9686 states and 13570 transitions. [2022-07-13 18:44:46,435 INFO L78 Accepts]: Start accepts. Automaton has 9686 states and 13570 transitions. Word has length 67 [2022-07-13 18:44:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:46,436 INFO L495 AbstractCegarLoop]: Abstraction has 9686 states and 13570 transitions. [2022-07-13 18:44:46,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:46,436 INFO L276 IsEmpty]: Start isEmpty. Operand 9686 states and 13570 transitions. [2022-07-13 18:44:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-13 18:44:46,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:46,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:46,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 18:44:46,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:46,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash 296799215, now seen corresponding path program 1 times [2022-07-13 18:44:46,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:46,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138047479] [2022-07-13 18:44:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:46,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:46,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138047479] [2022-07-13 18:44:46,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138047479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:46,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:46,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:44:46,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119566314] [2022-07-13 18:44:46,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:46,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:44:46,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:46,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:44:46,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:44:46,524 INFO L87 Difference]: Start difference. First operand 9686 states and 13570 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:51,845 INFO L93 Difference]: Finished difference Result 43115 states and 61687 transitions. [2022-07-13 18:44:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:44:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-07-13 18:44:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:51,914 INFO L225 Difference]: With dead ends: 43115 [2022-07-13 18:44:51,915 INFO L226 Difference]: Without dead ends: 38617 [2022-07-13 18:44:51,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:44:51,941 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 4475 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:51,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4475 Valid, 1112 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:44:51,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38617 states. [2022-07-13 18:44:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38617 to 9849. [2022-07-13 18:44:53,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9849 states, 9842 states have (on average 1.4006299532615323) internal successors, (13785), 9848 states have internal predecessors, (13785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 13785 transitions. [2022-07-13 18:44:53,265 INFO L78 Accepts]: Start accepts. Automaton has 9849 states and 13785 transitions. Word has length 67 [2022-07-13 18:44:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:53,265 INFO L495 AbstractCegarLoop]: Abstraction has 9849 states and 13785 transitions. [2022-07-13 18:44:53,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-07-13 18:44:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9849 states and 13785 transitions. [2022-07-13 18:44:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 18:44:53,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:53,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:53,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 18:44:53,274 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash -766843701, now seen corresponding path program 1 times [2022-07-13 18:44:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:53,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697637730] [2022-07-13 18:44:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:53,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:53,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:53,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697637730] [2022-07-13 18:44:53,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697637730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:53,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:53,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:44:53,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799396447] [2022-07-13 18:44:53,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:53,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:44:53,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:53,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:44:53,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:44:53,400 INFO L87 Difference]: Start difference. First operand 9849 states and 13785 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:57,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:44:57,752 INFO L93 Difference]: Finished difference Result 31622 states and 45411 transitions. [2022-07-13 18:44:57,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:44:57,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-13 18:44:57,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:44:57,788 INFO L225 Difference]: With dead ends: 31622 [2022-07-13 18:44:57,788 INFO L226 Difference]: Without dead ends: 25411 [2022-07-13 18:44:57,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 18:44:57,799 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3658 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:44:57,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3658 Valid, 2111 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 18:44:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25411 states. [2022-07-13 18:44:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25411 to 9837. [2022-07-13 18:44:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 9830 states have (on average 1.3998982706002034) internal successors, (13761), 9836 states have internal predecessors, (13761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 13761 transitions. [2022-07-13 18:44:59,067 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 13761 transitions. Word has length 68 [2022-07-13 18:44:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:44:59,067 INFO L495 AbstractCegarLoop]: Abstraction has 9837 states and 13761 transitions. [2022-07-13 18:44:59,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:44:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 13761 transitions. [2022-07-13 18:44:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 18:44:59,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:44:59,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:44:59,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 18:44:59,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:44:59,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:44:59,077 INFO L85 PathProgramCache]: Analyzing trace with hash -646757943, now seen corresponding path program 1 times [2022-07-13 18:44:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:44:59,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306202783] [2022-07-13 18:44:59,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:44:59,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:44:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:44:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:44:59,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:44:59,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306202783] [2022-07-13 18:44:59,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306202783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:44:59,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:44:59,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:44:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678479599] [2022-07-13 18:44:59,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:44:59,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:44:59,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:44:59,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:44:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:44:59,202 INFO L87 Difference]: Start difference. First operand 9837 states and 13761 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:03,878 INFO L93 Difference]: Finished difference Result 31780 states and 45648 transitions. [2022-07-13 18:45:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:45:03,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-13 18:45:03,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:03,914 INFO L225 Difference]: With dead ends: 31780 [2022-07-13 18:45:03,914 INFO L226 Difference]: Without dead ends: 25545 [2022-07-13 18:45:03,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 18:45:03,928 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 3805 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3805 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:03,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3805 Valid, 2006 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 18:45:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25545 states. [2022-07-13 18:45:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25545 to 9813. [2022-07-13 18:45:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 9806 states have (on average 1.3993473383642667) internal successors, (13722), 9812 states have internal predecessors, (13722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 13722 transitions. [2022-07-13 18:45:05,398 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 13722 transitions. Word has length 68 [2022-07-13 18:45:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:05,398 INFO L495 AbstractCegarLoop]: Abstraction has 9813 states and 13722 transitions. [2022-07-13 18:45:05,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 13722 transitions. [2022-07-13 18:45:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 18:45:05,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:05,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:05,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 18:45:05,405 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash 850267752, now seen corresponding path program 1 times [2022-07-13 18:45:05,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:05,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651643322] [2022-07-13 18:45:05,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:05,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:05,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651643322] [2022-07-13 18:45:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651643322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:05,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:05,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:45:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059551055] [2022-07-13 18:45:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:05,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:45:05,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:45:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:45:05,477 INFO L87 Difference]: Start difference. First operand 9813 states and 13722 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:11,945 INFO L93 Difference]: Finished difference Result 37439 states and 53569 transitions. [2022-07-13 18:45:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:45:11,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-13 18:45:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:11,990 INFO L225 Difference]: With dead ends: 37439 [2022-07-13 18:45:11,990 INFO L226 Difference]: Without dead ends: 33293 [2022-07-13 18:45:12,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:45:12,003 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3187 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:12,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 1237 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:45:12,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33293 states. [2022-07-13 18:45:13,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33293 to 9904. [2022-07-13 18:45:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9904 states, 9897 states have (on average 1.3994139638274226) internal successors, (13850), 9903 states have internal predecessors, (13850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:13,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9904 states to 9904 states and 13850 transitions. [2022-07-13 18:45:13,603 INFO L78 Accepts]: Start accepts. Automaton has 9904 states and 13850 transitions. Word has length 68 [2022-07-13 18:45:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:13,603 INFO L495 AbstractCegarLoop]: Abstraction has 9904 states and 13850 transitions. [2022-07-13 18:45:13,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9904 states and 13850 transitions. [2022-07-13 18:45:13,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 18:45:13,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:13,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:13,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 18:45:13,609 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:13,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:13,609 INFO L85 PathProgramCache]: Analyzing trace with hash -16939312, now seen corresponding path program 1 times [2022-07-13 18:45:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:13,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755397198] [2022-07-13 18:45:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:13,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755397198] [2022-07-13 18:45:13,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755397198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:13,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:13,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:45:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360201349] [2022-07-13 18:45:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:13,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:45:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:45:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:45:13,721 INFO L87 Difference]: Start difference. First operand 9904 states and 13850 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:20,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:20,842 INFO L93 Difference]: Finished difference Result 39097 states and 56264 transitions. [2022-07-13 18:45:20,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 18:45:20,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-13 18:45:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:20,888 INFO L225 Difference]: With dead ends: 39097 [2022-07-13 18:45:20,888 INFO L226 Difference]: Without dead ends: 32638 [2022-07-13 18:45:20,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-07-13 18:45:20,902 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2872 mSDsluCounter, 2215 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:20,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 2718 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 18:45:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32638 states. [2022-07-13 18:45:22,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32638 to 9769. [2022-07-13 18:45:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9762 states have (on average 1.3994058594550296) internal successors, (13661), 9768 states have internal predecessors, (13661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 13661 transitions. [2022-07-13 18:45:22,557 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 13661 transitions. Word has length 68 [2022-07-13 18:45:22,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:22,558 INFO L495 AbstractCegarLoop]: Abstraction has 9769 states and 13661 transitions. [2022-07-13 18:45:22,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 13661 transitions. [2022-07-13 18:45:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-13 18:45:22,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:22,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:22,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 18:45:22,564 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1623797592, now seen corresponding path program 1 times [2022-07-13 18:45:22,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:22,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309162960] [2022-07-13 18:45:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:22,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:22,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309162960] [2022-07-13 18:45:22,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309162960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:22,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:22,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:45:22,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136752689] [2022-07-13 18:45:22,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:22,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 18:45:22,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 18:45:22,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:45:22,672 INFO L87 Difference]: Start difference. First operand 9769 states and 13661 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:27,152 INFO L93 Difference]: Finished difference Result 27267 states and 39005 transitions. [2022-07-13 18:45:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 18:45:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-07-13 18:45:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:27,179 INFO L225 Difference]: With dead ends: 27267 [2022-07-13 18:45:27,179 INFO L226 Difference]: Without dead ends: 20308 [2022-07-13 18:45:27,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-13 18:45:27,190 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 3364 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3364 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:27,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3364 Valid, 1851 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 18:45:27,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20308 states. [2022-07-13 18:45:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20308 to 9442. [2022-07-13 18:45:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9442 states, 9435 states have (on average 1.398834128245893) internal successors, (13198), 9441 states have internal predecessors, (13198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9442 states to 9442 states and 13198 transitions. [2022-07-13 18:45:28,859 INFO L78 Accepts]: Start accepts. Automaton has 9442 states and 13198 transitions. Word has length 68 [2022-07-13 18:45:28,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:28,859 INFO L495 AbstractCegarLoop]: Abstraction has 9442 states and 13198 transitions. [2022-07-13 18:45:28,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9442 states and 13198 transitions. [2022-07-13 18:45:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 18:45:28,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:28,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:28,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 18:45:28,864 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash 601134174, now seen corresponding path program 1 times [2022-07-13 18:45:28,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:28,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899506510] [2022-07-13 18:45:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:28,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:29,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899506510] [2022-07-13 18:45:29,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899506510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:29,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:29,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 18:45:29,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076696903] [2022-07-13 18:45:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:29,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 18:45:29,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:29,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 18:45:29,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 18:45:29,126 INFO L87 Difference]: Start difference. First operand 9442 states and 13198 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:37,557 INFO L93 Difference]: Finished difference Result 41197 states and 59291 transitions. [2022-07-13 18:45:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:45:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 18:45:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:37,606 INFO L225 Difference]: With dead ends: 41197 [2022-07-13 18:45:37,606 INFO L226 Difference]: Without dead ends: 34576 [2022-07-13 18:45:37,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-07-13 18:45:37,618 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 4547 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 5311 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:37,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4547 Valid, 5311 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:45:37,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34576 states. [2022-07-13 18:45:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34576 to 8975. [2022-07-13 18:45:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8975 states, 8970 states have (on average 1.4018952062430323) internal successors, (12575), 8974 states have internal predecessors, (12575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:39,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8975 states to 8975 states and 12575 transitions. [2022-07-13 18:45:39,612 INFO L78 Accepts]: Start accepts. Automaton has 8975 states and 12575 transitions. Word has length 69 [2022-07-13 18:45:39,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:39,612 INFO L495 AbstractCegarLoop]: Abstraction has 8975 states and 12575 transitions. [2022-07-13 18:45:39,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:39,613 INFO L276 IsEmpty]: Start isEmpty. Operand 8975 states and 12575 transitions. [2022-07-13 18:45:39,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 18:45:39,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:39,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 18:45:39,618 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:39,618 INFO L85 PathProgramCache]: Analyzing trace with hash -10442599, now seen corresponding path program 1 times [2022-07-13 18:45:39,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:39,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748370220] [2022-07-13 18:45:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:39,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:39,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:39,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748370220] [2022-07-13 18:45:39,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748370220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:39,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:39,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 18:45:39,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801696384] [2022-07-13 18:45:39,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:39,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 18:45:39,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:39,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 18:45:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 18:45:39,866 INFO L87 Difference]: Start difference. First operand 8975 states and 12575 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:49,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:45:49,441 INFO L93 Difference]: Finished difference Result 40825 states and 59060 transitions. [2022-07-13 18:45:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:45:49,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 18:45:49,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:45:49,584 INFO L225 Difference]: With dead ends: 40825 [2022-07-13 18:45:49,584 INFO L226 Difference]: Without dead ends: 34555 [2022-07-13 18:45:49,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-13 18:45:49,594 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 4034 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:45:49,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4034 Valid, 4975 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:45:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34555 states. [2022-07-13 18:45:51,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34555 to 8890. [2022-07-13 18:45:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8886 states have (on average 1.4007427413909521) internal successors, (12447), 8889 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 12447 transitions. [2022-07-13 18:45:51,645 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 12447 transitions. Word has length 69 [2022-07-13 18:45:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:45:51,645 INFO L495 AbstractCegarLoop]: Abstraction has 8890 states and 12447 transitions. [2022-07-13 18:45:51,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:45:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 12447 transitions. [2022-07-13 18:45:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 18:45:51,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:45:51,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:45:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 18:45:51,650 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:45:51,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:45:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2099777066, now seen corresponding path program 1 times [2022-07-13 18:45:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:45:51,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665212139] [2022-07-13 18:45:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:45:51,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:45:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:45:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:45:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:45:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665212139] [2022-07-13 18:45:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665212139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:45:51,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:45:51,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 18:45:51,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671526974] [2022-07-13 18:45:51,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:45:51,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 18:45:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:45:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 18:45:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 18:45:51,869 INFO L87 Difference]: Start difference. First operand 8890 states and 12447 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:04,258 INFO L93 Difference]: Finished difference Result 46587 states and 67591 transitions. [2022-07-13 18:46:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:46:04,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 18:46:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:04,314 INFO L225 Difference]: With dead ends: 46587 [2022-07-13 18:46:04,315 INFO L226 Difference]: Without dead ends: 40392 [2022-07-13 18:46:04,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2022-07-13 18:46:04,329 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3808 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3808 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:04,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3808 Valid, 4502 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:46:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40392 states. [2022-07-13 18:46:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40392 to 8896. [2022-07-13 18:46:06,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8896 states, 8892 states have (on average 1.4006972559604138) internal successors, (12455), 8895 states have internal predecessors, (12455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8896 states to 8896 states and 12455 transitions. [2022-07-13 18:46:06,810 INFO L78 Accepts]: Start accepts. Automaton has 8896 states and 12455 transitions. Word has length 69 [2022-07-13 18:46:06,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:06,810 INFO L495 AbstractCegarLoop]: Abstraction has 8896 states and 12455 transitions. [2022-07-13 18:46:06,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 8896 states and 12455 transitions. [2022-07-13 18:46:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 18:46:06,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:06,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:06,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 18:46:06,817 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:06,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1281154285, now seen corresponding path program 1 times [2022-07-13 18:46:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:06,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792912656] [2022-07-13 18:46:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:06,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:06,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792912656] [2022-07-13 18:46:06,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792912656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:06,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:06,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:46:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434447657] [2022-07-13 18:46:06,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:06,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:46:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:46:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:46:06,906 INFO L87 Difference]: Start difference. First operand 8896 states and 12455 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:19,589 INFO L93 Difference]: Finished difference Result 41315 states and 59309 transitions. [2022-07-13 18:46:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 18:46:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 18:46:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:19,638 INFO L225 Difference]: With dead ends: 41315 [2022-07-13 18:46:19,638 INFO L226 Difference]: Without dead ends: 37178 [2022-07-13 18:46:19,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-13 18:46:19,650 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 3029 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:19,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 1139 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:46:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37178 states. [2022-07-13 18:46:22,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37178 to 8914. [2022-07-13 18:46:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8914 states, 8910 states have (on average 1.4003367003367004) internal successors, (12477), 8913 states have internal predecessors, (12477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8914 states to 8914 states and 12477 transitions. [2022-07-13 18:46:22,251 INFO L78 Accepts]: Start accepts. Automaton has 8914 states and 12477 transitions. Word has length 69 [2022-07-13 18:46:22,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:22,251 INFO L495 AbstractCegarLoop]: Abstraction has 8914 states and 12477 transitions. [2022-07-13 18:46:22,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8914 states and 12477 transitions. [2022-07-13 18:46:22,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 18:46:22,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:22,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:22,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 18:46:22,256 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:22,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1218623503, now seen corresponding path program 1 times [2022-07-13 18:46:22,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:22,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208557822] [2022-07-13 18:46:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:22,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:22,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:22,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208557822] [2022-07-13 18:46:22,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208557822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:22,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:22,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 18:46:22,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697315488] [2022-07-13 18:46:22,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:22,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 18:46:22,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 18:46:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 18:46:22,512 INFO L87 Difference]: Start difference. First operand 8914 states and 12477 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:37,204 INFO L93 Difference]: Finished difference Result 46572 states and 67569 transitions. [2022-07-13 18:46:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 18:46:37,205 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 18:46:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:37,257 INFO L225 Difference]: With dead ends: 46572 [2022-07-13 18:46:37,258 INFO L226 Difference]: Without dead ends: 40367 [2022-07-13 18:46:37,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-07-13 18:46:37,271 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 3780 mSDsluCounter, 3629 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:37,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 4374 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:46:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40367 states. [2022-07-13 18:46:40,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40367 to 8894. [2022-07-13 18:46:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8894 states, 8891 states have (on average 1.399167697671803) internal successors, (12440), 8893 states have internal predecessors, (12440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8894 states to 8894 states and 12440 transitions. [2022-07-13 18:46:40,045 INFO L78 Accepts]: Start accepts. Automaton has 8894 states and 12440 transitions. Word has length 69 [2022-07-13 18:46:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:40,045 INFO L495 AbstractCegarLoop]: Abstraction has 8894 states and 12440 transitions. [2022-07-13 18:46:40,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 8894 states and 12440 transitions. [2022-07-13 18:46:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-13 18:46:40,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:40,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:40,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 18:46:40,050 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:40,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1903821217, now seen corresponding path program 1 times [2022-07-13 18:46:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:40,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603463264] [2022-07-13 18:46:40,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:40,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:40,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603463264] [2022-07-13 18:46:40,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603463264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:40,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:40,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:46:40,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325278194] [2022-07-13 18:46:40,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:40,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:46:40,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:40,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:46:40,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:40,096 INFO L87 Difference]: Start difference. First operand 8894 states and 12440 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:42,757 INFO L93 Difference]: Finished difference Result 13551 states and 19116 transitions. [2022-07-13 18:46:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:46:42,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-07-13 18:46:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:42,768 INFO L225 Difference]: With dead ends: 13551 [2022-07-13 18:46:42,768 INFO L226 Difference]: Without dead ends: 8900 [2022-07-13 18:46:42,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:42,772 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 357 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:42,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1323 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:46:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states. [2022-07-13 18:46:45,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 8894. [2022-07-13 18:46:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8894 states, 8891 states have (on average 1.388257788775166) internal successors, (12343), 8893 states have internal predecessors, (12343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8894 states to 8894 states and 12343 transitions. [2022-07-13 18:46:45,362 INFO L78 Accepts]: Start accepts. Automaton has 8894 states and 12343 transitions. Word has length 70 [2022-07-13 18:46:45,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:45,362 INFO L495 AbstractCegarLoop]: Abstraction has 8894 states and 12343 transitions. [2022-07-13 18:46:45,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8894 states and 12343 transitions. [2022-07-13 18:46:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-13 18:46:45,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:45,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:45,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 18:46:45,367 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:45,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:45,367 INFO L85 PathProgramCache]: Analyzing trace with hash 309786751, now seen corresponding path program 1 times [2022-07-13 18:46:45,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:45,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710106208] [2022-07-13 18:46:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:45,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:45,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710106208] [2022-07-13 18:46:45,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710106208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:45,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:45,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:46:45,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509116345] [2022-07-13 18:46:45,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:45,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:46:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:45,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:46:45,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:45,407 INFO L87 Difference]: Start difference. First operand 8894 states and 12343 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:48,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:48,894 INFO L93 Difference]: Finished difference Result 16352 states and 22900 transitions. [2022-07-13 18:46:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:46:48,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-13 18:46:48,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:48,905 INFO L225 Difference]: With dead ends: 16352 [2022-07-13 18:46:48,906 INFO L226 Difference]: Without dead ends: 10946 [2022-07-13 18:46:48,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:48,913 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 527 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:48,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 829 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:46:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10946 states. [2022-07-13 18:46:51,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10946 to 8229. [2022-07-13 18:46:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 8226 states have (on average 1.3932652565037686) internal successors, (11461), 8228 states have internal predecessors, (11461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 11461 transitions. [2022-07-13 18:46:51,441 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 11461 transitions. Word has length 71 [2022-07-13 18:46:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:51,441 INFO L495 AbstractCegarLoop]: Abstraction has 8229 states and 11461 transitions. [2022-07-13 18:46:51,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 11461 transitions. [2022-07-13 18:46:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-13 18:46:51,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:51,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:51,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 18:46:51,445 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 988722201, now seen corresponding path program 1 times [2022-07-13 18:46:51,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:51,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577909965] [2022-07-13 18:46:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:51,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:51,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577909965] [2022-07-13 18:46:51,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577909965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:51,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:51,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:46:51,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733282182] [2022-07-13 18:46:51,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:51,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:46:51,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:51,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:46:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:51,489 INFO L87 Difference]: Start difference. First operand 8229 states and 11461 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:55,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:46:55,666 INFO L93 Difference]: Finished difference Result 17130 states and 24155 transitions. [2022-07-13 18:46:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:46:55,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-07-13 18:46:55,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:46:55,680 INFO L225 Difference]: With dead ends: 17130 [2022-07-13 18:46:55,680 INFO L226 Difference]: Without dead ends: 12086 [2022-07-13 18:46:55,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:46:55,686 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 426 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:46:55,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 609 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:46:55,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12086 states. [2022-07-13 18:46:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12086 to 12048. [2022-07-13 18:46:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12048 states, 12046 states have (on average 1.4147434833139632) internal successors, (17042), 12047 states have internal predecessors, (17042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12048 states to 12048 states and 17042 transitions. [2022-07-13 18:46:59,791 INFO L78 Accepts]: Start accepts. Automaton has 12048 states and 17042 transitions. Word has length 71 [2022-07-13 18:46:59,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:46:59,791 INFO L495 AbstractCegarLoop]: Abstraction has 12048 states and 17042 transitions. [2022-07-13 18:46:59,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:46:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 12048 states and 17042 transitions. [2022-07-13 18:46:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-13 18:46:59,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:46:59,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:46:59,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 18:46:59,797 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:46:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:46:59,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1452200258, now seen corresponding path program 1 times [2022-07-13 18:46:59,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:46:59,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971930370] [2022-07-13 18:46:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:46:59,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:46:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:46:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:46:59,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:46:59,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971930370] [2022-07-13 18:46:59,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971930370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:46:59,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:46:59,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:46:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667652648] [2022-07-13 18:46:59,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:46:59,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:46:59,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:46:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:46:59,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:46:59,888 INFO L87 Difference]: Start difference. First operand 12048 states and 17042 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 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) [2022-07-13 18:47:06,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:47:06,255 INFO L93 Difference]: Finished difference Result 19289 states and 27439 transitions. [2022-07-13 18:47:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 18:47:06,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 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 [2022-07-13 18:47:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:47:06,280 INFO L225 Difference]: With dead ends: 19289 [2022-07-13 18:47:06,281 INFO L226 Difference]: Without dead ends: 15832 [2022-07-13 18:47:06,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 18:47:06,290 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 2630 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 18:47:06,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 1514 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 18:47:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15832 states. [2022-07-13 18:47:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15832 to 12045. [2022-07-13 18:47:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12045 states, 12043 states have (on average 1.4145976916050818) internal successors, (17036), 12044 states have internal predecessors, (17036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12045 states to 12045 states and 17036 transitions. [2022-07-13 18:47:10,493 INFO L78 Accepts]: Start accepts. Automaton has 12045 states and 17036 transitions. Word has length 72 [2022-07-13 18:47:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:47:10,493 INFO L495 AbstractCegarLoop]: Abstraction has 12045 states and 17036 transitions. [2022-07-13 18:47:10,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 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) [2022-07-13 18:47:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand 12045 states and 17036 transitions. [2022-07-13 18:47:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-13 18:47:10,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:47:10,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:47:10,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 18:47:10,498 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:47:10,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:47:10,499 INFO L85 PathProgramCache]: Analyzing trace with hash 829917559, now seen corresponding path program 1 times [2022-07-13 18:47:10,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:47:10,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847692210] [2022-07-13 18:47:10,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:47:10,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:47:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:47:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:47:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:47:10,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847692210] [2022-07-13 18:47:10,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847692210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:47:10,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:47:10,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:47:10,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892034393] [2022-07-13 18:47:10,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:47:10,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:47:10,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:47:10,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:47:10,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:47:10,554 INFO L87 Difference]: Start difference. First operand 12045 states and 17036 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:14,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:47:14,845 INFO L93 Difference]: Finished difference Result 18770 states and 26698 transitions. [2022-07-13 18:47:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:47:14,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-13 18:47:14,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:47:14,859 INFO L225 Difference]: With dead ends: 18770 [2022-07-13 18:47:14,859 INFO L226 Difference]: Without dead ends: 12049 [2022-07-13 18:47:14,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:47:14,864 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 246 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 986 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 [2022-07-13 18:47:14,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 986 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:47:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12049 states. [2022-07-13 18:47:18,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12049 to 12045. [2022-07-13 18:47:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12045 states, 12043 states have (on average 1.4010628580918376) internal successors, (16873), 12044 states have internal predecessors, (16873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12045 states to 12045 states and 16873 transitions. [2022-07-13 18:47:18,956 INFO L78 Accepts]: Start accepts. Automaton has 12045 states and 16873 transitions. Word has length 73 [2022-07-13 18:47:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:47:18,956 INFO L495 AbstractCegarLoop]: Abstraction has 12045 states and 16873 transitions. [2022-07-13 18:47:18,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 12045 states and 16873 transitions. [2022-07-13 18:47:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 18:47:18,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:47:18,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:47:18,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-13 18:47:18,963 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:47:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:47:18,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1577670508, now seen corresponding path program 1 times [2022-07-13 18:47:18,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:47:18,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549644083] [2022-07-13 18:47:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:47:18,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:47:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:47:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:47:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:47:19,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549644083] [2022-07-13 18:47:19,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549644083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:47:19,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:47:19,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 18:47:19,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604194132] [2022-07-13 18:47:19,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:47:19,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 18:47:19,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:47:19,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 18:47:19,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-13 18:47:19,172 INFO L87 Difference]: Start difference. First operand 12045 states and 16873 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:47:33,639 INFO L93 Difference]: Finished difference Result 37597 states and 53403 transitions. [2022-07-13 18:47:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 18:47:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-13 18:47:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:47:33,689 INFO L225 Difference]: With dead ends: 37597 [2022-07-13 18:47:33,689 INFO L226 Difference]: Without dead ends: 34085 [2022-07-13 18:47:33,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-07-13 18:47:33,700 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 4046 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4046 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 18:47:33,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4046 Valid, 3916 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 18:47:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34085 states. [2022-07-13 18:47:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34085 to 11904. [2022-07-13 18:47:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11904 states, 11902 states have (on average 1.4029574861367837) internal successors, (16698), 11903 states have internal predecessors, (16698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11904 states to 11904 states and 16698 transitions. [2022-07-13 18:47:38,482 INFO L78 Accepts]: Start accepts. Automaton has 11904 states and 16698 transitions. Word has length 75 [2022-07-13 18:47:38,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:47:38,482 INFO L495 AbstractCegarLoop]: Abstraction has 11904 states and 16698 transitions. [2022-07-13 18:47:38,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 11904 states and 16698 transitions. [2022-07-13 18:47:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-13 18:47:38,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:47:38,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:47:38,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 18:47:38,488 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:47:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:47:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash 2128427700, now seen corresponding path program 1 times [2022-07-13 18:47:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:47:38,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328903052] [2022-07-13 18:47:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:47:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:47:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:47:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:47:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:47:38,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328903052] [2022-07-13 18:47:38,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328903052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:47:38,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:47:38,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:47:38,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366906053] [2022-07-13 18:47:38,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:47:38,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:47:38,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:47:38,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:47:38,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:47:38,525 INFO L87 Difference]: Start difference. First operand 11904 states and 16698 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:47:44,491 INFO L93 Difference]: Finished difference Result 22616 states and 31910 transitions. [2022-07-13 18:47:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:47:44,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-13 18:47:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:47:44,510 INFO L225 Difference]: With dead ends: 22616 [2022-07-13 18:47:44,510 INFO L226 Difference]: Without dead ends: 15021 [2022-07-13 18:47:44,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:47:44,517 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 309 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:47:44,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 467 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:47:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15021 states. [2022-07-13 18:47:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15021 to 11427. [2022-07-13 18:47:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11427 states, 11426 states have (on average 1.4052161736390687) internal successors, (16056), 11426 states have internal predecessors, (16056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11427 states to 11427 states and 16056 transitions. [2022-07-13 18:47:49,132 INFO L78 Accepts]: Start accepts. Automaton has 11427 states and 16056 transitions. Word has length 75 [2022-07-13 18:47:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:47:49,132 INFO L495 AbstractCegarLoop]: Abstraction has 11427 states and 16056 transitions. [2022-07-13 18:47:49,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:47:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 11427 states and 16056 transitions. [2022-07-13 18:47:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 18:47:49,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:47:49,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:47:49,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 18:47:49,142 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:47:49,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:47:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash -485578834, now seen corresponding path program 1 times [2022-07-13 18:47:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:47:49,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367177890] [2022-07-13 18:47:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:47:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:47:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:47:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:47:49,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:47:49,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367177890] [2022-07-13 18:47:49,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367177890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:47:49,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:47:49,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:47:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815835705] [2022-07-13 18:47:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:47:49,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:47:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:47:49,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:47:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:47:49,213 INFO L87 Difference]: Start difference. First operand 11427 states and 16056 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:48:05,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:48:05,563 INFO L93 Difference]: Finished difference Result 47214 states and 67798 transitions. [2022-07-13 18:48:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:48:05,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-07-13 18:48:05,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:48:05,618 INFO L225 Difference]: With dead ends: 47214 [2022-07-13 18:48:05,619 INFO L226 Difference]: Without dead ends: 37531 [2022-07-13 18:48:05,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:48:05,632 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1776 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:48:05,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1100 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:48:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37531 states. [2022-07-13 18:48:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37531 to 21108. [2022-07-13 18:48:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21108 states, 21107 states have (on average 1.4069739896716729) internal successors, (29697), 21107 states have internal predecessors, (29697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:48:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21108 states to 21108 states and 29697 transitions. [2022-07-13 18:48:14,801 INFO L78 Accepts]: Start accepts. Automaton has 21108 states and 29697 transitions. Word has length 84 [2022-07-13 18:48:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:48:14,802 INFO L495 AbstractCegarLoop]: Abstraction has 21108 states and 29697 transitions. [2022-07-13 18:48:14,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:48:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 21108 states and 29697 transitions. [2022-07-13 18:48:14,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 18:48:14,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:48:14,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:48:14,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-13 18:48:14,820 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:48:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:48:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1437916483, now seen corresponding path program 1 times [2022-07-13 18:48:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:48:14,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146744474] [2022-07-13 18:48:14,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:48:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:48:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:48:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:48:14,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:48:14,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146744474] [2022-07-13 18:48:14,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146744474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:48:14,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:48:14,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:48:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187537023] [2022-07-13 18:48:14,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:48:14,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:48:14,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:48:14,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:48:14,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:48:14,897 INFO L87 Difference]: Start difference. First operand 21108 states and 29697 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2022-07-13 18:48:26,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:48:26,948 INFO L93 Difference]: Finished difference Result 34320 states and 48283 transitions. [2022-07-13 18:48:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 18:48:26,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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 [2022-07-13 18:48:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:48:26,991 INFO L225 Difference]: With dead ends: 34320 [2022-07-13 18:48:26,991 INFO L226 Difference]: Without dead ends: 26521 [2022-07-13 18:48:27,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:48:27,003 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 783 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:48:27,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1313 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 18:48:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26521 states. [2022-07-13 18:48:38,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26521 to 23113. [2022-07-13 18:48:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23113 states, 23112 states have (on average 1.403729664243683) internal successors, (32443), 23112 states have internal predecessors, (32443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:48:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23113 states to 23113 states and 32443 transitions. [2022-07-13 18:48:38,161 INFO L78 Accepts]: Start accepts. Automaton has 23113 states and 32443 transitions. Word has length 85 [2022-07-13 18:48:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:48:38,161 INFO L495 AbstractCegarLoop]: Abstraction has 23113 states and 32443 transitions. [2022-07-13 18:48:38,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2022-07-13 18:48:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23113 states and 32443 transitions. [2022-07-13 18:48:38,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 18:48:38,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:48:38,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:48:38,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-13 18:48:38,183 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-07-13 18:48:38,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:48:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1391083626, now seen corresponding path program 1 times [2022-07-13 18:48:38,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:48:38,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168516885] [2022-07-13 18:48:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:48:38,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:48:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:48:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:48:38,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:48:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168516885] [2022-07-13 18:48:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168516885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:48:38,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:48:38,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:48:38,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735844096] [2022-07-13 18:48:38,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:48:38,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:48:38,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:48:38,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:48:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:48:38,237 INFO L87 Difference]: Start difference. First operand 23113 states and 32443 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 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)