/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:00:29,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:00:29,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:00:29,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:00:29,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:00:29,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:00:29,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:00:29,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:00:29,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:00:29,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:00:29,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:00:29,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:00:29,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:00:29,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:00:29,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:00:29,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:00:29,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:00:29,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:00:29,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:00:29,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:00:29,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:00:29,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:00:29,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:00:29,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:00:29,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:00:29,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:00:29,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:00:29,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:00:29,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:00:29,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:00:29,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:00:29,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:00:29,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:00:29,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:00:29,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:00:29,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:00:29,801 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:00:29,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:00:29,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:00:29,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:00:29,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:00:29,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:00:29,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:00:29,844 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:00:29,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:00:29,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:00:29,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:00:29,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:00:29,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:00:29,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:00:29,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:00:29,846 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:00:29,846 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:00:29,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:00:29,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:00:29,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:00:29,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:00:29,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:00:29,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:00:29,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:00:29,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:00:29,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:00:29,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:00:29,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:00:29,850 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:00:29,850 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:00:30,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:00:30,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:00:30,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:00:30,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:00:30,089 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:00:30,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-01-10 13:00:30,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14f0466d/459bcf4714fa41839951453055975e6d/FLAG308368d33 [2022-01-10 13:00:30,685 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:00:30,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-01-10 13:00:30,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14f0466d/459bcf4714fa41839951453055975e6d/FLAG308368d33 [2022-01-10 13:00:30,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14f0466d/459bcf4714fa41839951453055975e6d [2022-01-10 13:00:30,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:00:30,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:00:30,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:00:30,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:00:30,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:00:30,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:00:30" (1/1) ... [2022-01-10 13:00:30,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6a1f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:30, skipping insertion in model container [2022-01-10 13:00:30,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:00:30" (1/1) ... [2022-01-10 13:00:30,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:00:31,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:00:31,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[21939,21952] [2022-01-10 13:00:31,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:00:31,563 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:00:31,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[21939,21952] [2022-01-10 13:00:31,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:00:31,875 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:00:31,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31 WrapperNode [2022-01-10 13:00:31,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:00:31,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:00:31,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:00:31,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:00:31,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:31,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:31,995 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2756 [2022-01-10 13:00:31,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:00:31,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:00:31,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:00:31,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:00:32,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:00:32,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:00:32,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:00:32,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:00:32,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (1/1) ... [2022-01-10 13:00:32,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:00:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:00:32,165 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) [2022-01-10 13:00:32,192 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 [2022-01-10 13:00:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:00:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:00:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:00:32,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:00:32,437 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:00:32,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:00:33,995 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:00:34,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:00:34,013 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 13:00:34,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:00:34 BoogieIcfgContainer [2022-01-10 13:00:34,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:00:34,023 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:00:34,023 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:00:34,024 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:00:34,027 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:00:34" (1/1) ... [2022-01-10 13:00:34,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:00:34 BasicIcfg [2022-01-10 13:00:34,815 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:00:34,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:00:34,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:00:34,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:00:34,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:00:30" (1/4) ... [2022-01-10 13:00:34,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f20cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:00:34, skipping insertion in model container [2022-01-10 13:00:34,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:00:31" (2/4) ... [2022-01-10 13:00:34,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f20cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:00:34, skipping insertion in model container [2022-01-10 13:00:34,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:00:34" (3/4) ... [2022-01-10 13:00:34,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f20cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:00:34, skipping insertion in model container [2022-01-10 13:00:34,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:00:34" (4/4) ... [2022-01-10 13:00:34,824 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.cTransformedIcfg [2022-01-10 13:00:34,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:00:34,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 13:00:34,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:00:34,891 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:00:34,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 13:00:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 745 states, 743 states have (on average 1.8371467025572006) internal successors, (1365), 744 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-10 13:00:34,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:34,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:34,948 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:34,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash 858377459, now seen corresponding path program 1 times [2022-01-10 13:00:34,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161094708] [2022-01-10 13:00:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:34,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:35,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:35,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:35,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161094708] [2022-01-10 13:00:35,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161094708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:35,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:35,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:00:35,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064399893] [2022-01-10 13:00:35,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:35,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:00:35,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:35,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:00:35,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:35,969 INFO L87 Difference]: Start difference. First operand has 745 states, 743 states have (on average 1.8371467025572006) internal successors, (1365), 744 states have internal predecessors, (1365), 0 states have call successors, (0), 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 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:38,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 13:00:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:38,302 INFO L93 Difference]: Finished difference Result 1136 states and 2022 transitions. [2022-01-10 13:00:38,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:00:38,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 203 [2022-01-10 13:00:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:38,333 INFO L225 Difference]: With dead ends: 1136 [2022-01-10 13:00:38,333 INFO L226 Difference]: Without dead ends: 928 [2022-01-10 13:00:38,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:38,348 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 352 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:38,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2615 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 13:00:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-01-10 13:00:38,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2022-01-10 13:00:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.7380952380952381) internal successors, (1606), 924 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1606 transitions. [2022-01-10 13:00:38,466 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1606 transitions. Word has length 203 [2022-01-10 13:00:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:38,469 INFO L470 AbstractCegarLoop]: Abstraction has 925 states and 1606 transitions. [2022-01-10 13:00:38,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1606 transitions. [2022-01-10 13:00:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-01-10 13:00:38,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:38,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:38,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:00:38,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:38,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1997239369, now seen corresponding path program 1 times [2022-01-10 13:00:38,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:38,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658233714] [2022-01-10 13:00:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:38,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:38,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:38,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658233714] [2022-01-10 13:00:38,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658233714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:38,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:38,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:00:38,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169344576] [2022-01-10 13:00:38,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:38,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:00:38,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:00:38,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:00:38,943 INFO L87 Difference]: Start difference. First operand 925 states and 1606 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:39,214 INFO L93 Difference]: Finished difference Result 2676 states and 4637 transitions. [2022-01-10 13:00:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:00:39,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2022-01-10 13:00:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:39,226 INFO L225 Difference]: With dead ends: 2676 [2022-01-10 13:00:39,226 INFO L226 Difference]: Without dead ends: 1828 [2022-01-10 13:00:39,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:00:39,233 INFO L933 BasicCegarLoop]: 1313 mSDtfsCounter, 3609 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:39,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3609 Valid, 2568 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:00:39,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2022-01-10 13:00:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1826. [2022-01-10 13:00:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1825 states have (on average 1.7315068493150685) internal successors, (3160), 1825 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 3160 transitions. [2022-01-10 13:00:39,352 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 3160 transitions. Word has length 207 [2022-01-10 13:00:39,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:39,354 INFO L470 AbstractCegarLoop]: Abstraction has 1826 states and 3160 transitions. [2022-01-10 13:00:39,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 3160 transitions. [2022-01-10 13:00:39,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-01-10 13:00:39,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:39,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:39,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:00:39,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:39,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:39,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1498537883, now seen corresponding path program 1 times [2022-01-10 13:00:39,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:39,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318699743] [2022-01-10 13:00:39,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:39,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:39,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:39,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318699743] [2022-01-10 13:00:39,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318699743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:39,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:39,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:00:39,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180409781] [2022-01-10 13:00:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:39,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:00:39,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:00:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:39,647 INFO L87 Difference]: Start difference. First operand 1826 states and 3160 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:39,761 INFO L93 Difference]: Finished difference Result 2546 states and 4385 transitions. [2022-01-10 13:00:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:00:39,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2022-01-10 13:00:39,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:39,772 INFO L225 Difference]: With dead ends: 2546 [2022-01-10 13:00:39,772 INFO L226 Difference]: Without dead ends: 2153 [2022-01-10 13:00:39,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:39,778 INFO L933 BasicCegarLoop]: 1569 mSDtfsCounter, 312 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:39,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2824 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:00:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2022-01-10 13:00:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2151. [2022-01-10 13:00:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 2150 states have (on average 1.7269767441860464) internal successors, (3713), 2150 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3713 transitions. [2022-01-10 13:00:39,900 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3713 transitions. Word has length 209 [2022-01-10 13:00:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:39,900 INFO L470 AbstractCegarLoop]: Abstraction has 2151 states and 3713 transitions. [2022-01-10 13:00:39,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3713 transitions. [2022-01-10 13:00:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-01-10 13:00:39,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:39,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:39,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:00:39,905 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:39,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:39,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2065241362, now seen corresponding path program 1 times [2022-01-10 13:00:39,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:39,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422455752] [2022-01-10 13:00:39,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:39,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:40,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:40,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:40,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422455752] [2022-01-10 13:00:40,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422455752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:40,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:40,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:00:40,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024842447] [2022-01-10 13:00:40,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:40,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:00:40,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:40,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:00:40,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:00:40,331 INFO L87 Difference]: Start difference. First operand 2151 states and 3713 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:40,972 INFO L93 Difference]: Finished difference Result 8460 states and 14591 transitions. [2022-01-10 13:00:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 13:00:40,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2022-01-10 13:00:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:41,002 INFO L225 Difference]: With dead ends: 8460 [2022-01-10 13:00:41,002 INFO L226 Difference]: Without dead ends: 6323 [2022-01-10 13:00:41,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 13:00:41,014 INFO L933 BasicCegarLoop]: 1597 mSDtfsCounter, 4640 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 4042 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:41,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 4042 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:00:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6323 states. [2022-01-10 13:00:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6323 to 4256. [2022-01-10 13:00:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 4255 states have (on average 1.7191539365452408) internal successors, (7315), 4255 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 7315 transitions. [2022-01-10 13:00:41,376 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 7315 transitions. Word has length 209 [2022-01-10 13:00:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:41,377 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 7315 transitions. [2022-01-10 13:00:41,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 7315 transitions. [2022-01-10 13:00:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-01-10 13:00:41,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:41,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:41,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:00:41,404 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash -542249028, now seen corresponding path program 1 times [2022-01-10 13:00:41,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:41,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744570843] [2022-01-10 13:00:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:41,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:41,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:41,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744570843] [2022-01-10 13:00:41,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744570843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:41,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:41,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:00:41,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504531669] [2022-01-10 13:00:41,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:41,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:00:41,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:00:41,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:00:41,686 INFO L87 Difference]: Start difference. First operand 4256 states and 7315 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:42,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:42,511 INFO L93 Difference]: Finished difference Result 12537 states and 21535 transitions. [2022-01-10 13:00:42,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:00:42,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2022-01-10 13:00:42,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:42,551 INFO L225 Difference]: With dead ends: 12537 [2022-01-10 13:00:42,552 INFO L226 Difference]: Without dead ends: 8447 [2022-01-10 13:00:42,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:00:42,564 INFO L933 BasicCegarLoop]: 1606 mSDtfsCounter, 3313 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:42,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3313 Valid, 2861 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:00:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8447 states. [2022-01-10 13:00:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8447 to 8445. [2022-01-10 13:00:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8445 states, 8444 states have (on average 1.7128138323069635) internal successors, (14463), 8444 states have internal predecessors, (14463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8445 states to 8445 states and 14463 transitions. [2022-01-10 13:00:43,444 INFO L78 Accepts]: Start accepts. Automaton has 8445 states and 14463 transitions. Word has length 212 [2022-01-10 13:00:43,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:43,449 INFO L470 AbstractCegarLoop]: Abstraction has 8445 states and 14463 transitions. [2022-01-10 13:00:43,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8445 states and 14463 transitions. [2022-01-10 13:00:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 13:00:43,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:43,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:43,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:00:43,466 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:43,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:43,467 INFO L85 PathProgramCache]: Analyzing trace with hash -544203853, now seen corresponding path program 1 times [2022-01-10 13:00:43,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:43,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869918390] [2022-01-10 13:00:43,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:43,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:43,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:43,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869918390] [2022-01-10 13:00:43,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869918390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:43,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:43,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:00:43,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746962528] [2022-01-10 13:00:43,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:43,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:00:43,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:43,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:00:43,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:00:43,770 INFO L87 Difference]: Start difference. First operand 8445 states and 14463 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:45,513 INFO L93 Difference]: Finished difference Result 25115 states and 43005 transitions. [2022-01-10 13:00:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:00:45,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-10 13:00:45,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:45,583 INFO L225 Difference]: With dead ends: 25115 [2022-01-10 13:00:45,583 INFO L226 Difference]: Without dead ends: 16731 [2022-01-10 13:00:45,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:00:45,605 INFO L933 BasicCegarLoop]: 1593 mSDtfsCounter, 3285 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:45,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3285 Valid, 2848 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:00:45,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2022-01-10 13:00:46,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16729. [2022-01-10 13:00:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16729 states, 16728 states have (on average 1.7046269727403156) internal successors, (28515), 16728 states have internal predecessors, (28515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:47,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16729 states to 16729 states and 28515 transitions. [2022-01-10 13:00:47,016 INFO L78 Accepts]: Start accepts. Automaton has 16729 states and 28515 transitions. Word has length 214 [2022-01-10 13:00:47,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:47,016 INFO L470 AbstractCegarLoop]: Abstraction has 16729 states and 28515 transitions. [2022-01-10 13:00:47,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 16729 states and 28515 transitions. [2022-01-10 13:00:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 13:00:47,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:47,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:47,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:00:47,045 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:47,045 INFO L85 PathProgramCache]: Analyzing trace with hash 718888842, now seen corresponding path program 1 times [2022-01-10 13:00:47,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:47,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198820237] [2022-01-10 13:00:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:47,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:47,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:47,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198820237] [2022-01-10 13:00:47,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198820237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:47,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:47,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:00:47,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242439741] [2022-01-10 13:00:47,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:47,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:00:47,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:47,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:00:47,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:47,464 INFO L87 Difference]: Start difference. First operand 16729 states and 28515 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:49,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 13:00:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:51,593 INFO L93 Difference]: Finished difference Result 32869 states and 55517 transitions. [2022-01-10 13:00:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:00:51,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2022-01-10 13:00:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:51,670 INFO L225 Difference]: With dead ends: 32869 [2022-01-10 13:00:51,670 INFO L226 Difference]: Without dead ends: 24547 [2022-01-10 13:00:51,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:51,695 INFO L933 BasicCegarLoop]: 1308 mSDtfsCounter, 303 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:51,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 2555 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 13:00:51,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24547 states. [2022-01-10 13:00:53,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24547 to 24497. [2022-01-10 13:00:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24497 states, 24496 states have (on average 1.690194317439582) internal successors, (41403), 24496 states have internal predecessors, (41403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24497 states to 24497 states and 41403 transitions. [2022-01-10 13:00:53,888 INFO L78 Accepts]: Start accepts. Automaton has 24497 states and 41403 transitions. Word has length 216 [2022-01-10 13:00:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:00:53,889 INFO L470 AbstractCegarLoop]: Abstraction has 24497 states and 41403 transitions. [2022-01-10 13:00:53,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24497 states and 41403 transitions. [2022-01-10 13:00:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-01-10 13:00:53,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:00:53,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:00:53,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:00:53,919 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:00:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:00:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash 365861926, now seen corresponding path program 1 times [2022-01-10 13:00:53,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:00:53,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917269620] [2022-01-10 13:00:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:00:53,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:00:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:00:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:00:54,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:00:54,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917269620] [2022-01-10 13:00:54,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917269620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:00:54,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:00:54,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:00:54,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071852023] [2022-01-10 13:00:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:00:54,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:00:54,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:00:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:00:54,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:54,181 INFO L87 Difference]: Start difference. First operand 24497 states and 41403 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:00:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:00:57,492 INFO L93 Difference]: Finished difference Result 70285 states and 118511 transitions. [2022-01-10 13:00:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:00:57,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 220 [2022-01-10 13:00:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:00:57,645 INFO L225 Difference]: With dead ends: 70285 [2022-01-10 13:00:57,645 INFO L226 Difference]: Without dead ends: 47651 [2022-01-10 13:00:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:00:57,687 INFO L933 BasicCegarLoop]: 2466 mSDtfsCounter, 1054 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:00:57,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 3735 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:00:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47651 states. [2022-01-10 13:01:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47651 to 47649. [2022-01-10 13:01:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47649 states, 47648 states have (on average 1.6824420752182674) internal successors, (80165), 47648 states have internal predecessors, (80165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:00,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47649 states to 47649 states and 80165 transitions. [2022-01-10 13:01:00,800 INFO L78 Accepts]: Start accepts. Automaton has 47649 states and 80165 transitions. Word has length 220 [2022-01-10 13:01:00,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:01:00,801 INFO L470 AbstractCegarLoop]: Abstraction has 47649 states and 80165 transitions. [2022-01-10 13:01:00,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 47649 states and 80165 transitions. [2022-01-10 13:01:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-01-10 13:01:00,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:01:00,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:01:00,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:01:00,848 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:01:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:01:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash -69710946, now seen corresponding path program 1 times [2022-01-10 13:01:00,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:01:00,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240364486] [2022-01-10 13:01:00,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:01:00,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:01:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:01:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:01:01,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:01:01,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240364486] [2022-01-10 13:01:01,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240364486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:01:01,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:01:01,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 13:01:01,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259444016] [2022-01-10 13:01:01,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:01:01,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 13:01:01,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:01:01,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 13:01:01,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 13:01:01,106 INFO L87 Difference]: Start difference. First operand 47649 states and 80165 transitions. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:01:07,769 INFO L93 Difference]: Finished difference Result 140381 states and 236159 transitions. [2022-01-10 13:01:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 13:01:07,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 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 221 [2022-01-10 13:01:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:01:07,999 INFO L225 Difference]: With dead ends: 140381 [2022-01-10 13:01:07,999 INFO L226 Difference]: Without dead ends: 93899 [2022-01-10 13:01:08,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:01:08,058 INFO L933 BasicCegarLoop]: 1520 mSDtfsCounter, 3263 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:01:08,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3263 Valid, 2775 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:01:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93899 states. [2022-01-10 13:01:14,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93899 to 93897. [2022-01-10 13:01:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93897 states, 93896 states have (on average 1.6778670017892137) internal successors, (157545), 93896 states have internal predecessors, (157545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93897 states to 93897 states and 157545 transitions. [2022-01-10 13:01:14,758 INFO L78 Accepts]: Start accepts. Automaton has 93897 states and 157545 transitions. Word has length 221 [2022-01-10 13:01:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:01:14,759 INFO L470 AbstractCegarLoop]: Abstraction has 93897 states and 157545 transitions. [2022-01-10 13:01:14,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 93897 states and 157545 transitions. [2022-01-10 13:01:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-01-10 13:01:14,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:01:14,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:01:14,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:01:14,830 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:01:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:01:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash 898691655, now seen corresponding path program 1 times [2022-01-10 13:01:14,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:01:14,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506292699] [2022-01-10 13:01:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:01:14,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:01:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:01:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:01:15,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:01:15,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506292699] [2022-01-10 13:01:15,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506292699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:01:15,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:01:15,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:01:15,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217817707] [2022-01-10 13:01:15,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:01:15,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:01:15,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:01:15,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:01:15,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:01:15,226 INFO L87 Difference]: Start difference. First operand 93897 states and 157545 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:01:27,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:01:27,646 INFO L93 Difference]: Finished difference Result 274185 states and 459480 transitions. [2022-01-10 13:01:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:01:27,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2022-01-10 13:01:27,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted.