/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_LAZY.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:30:54,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:30:54,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:30:54,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:30:54,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:30:54,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:30:54,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:30:54,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:30:54,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:30:54,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:30:54,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:30:54,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:30:54,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:30:54,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:30:54,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:30:54,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:30:54,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:30:54,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:30:54,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:30:54,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:30:54,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:30:54,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:30:54,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:30:54,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:30:54,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:30:54,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:30:54,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:30:54,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:30:54,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:30:54,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:30:54,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:30:54,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:30:54,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:30:54,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:30:54,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:30:54,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:30:54,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:30:54,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:30:54,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:30:54,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:30:54,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:30:54,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:30:54,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:30:54,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:30:54,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:30:54,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:30:54,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:30:54,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:30:54,955 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:30:54,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:30:54,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:30:54,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:30:54,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:30:54,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:30:54,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:30:54,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:30:54,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:30:54,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:30:54,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:30:54,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:30:54,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:30:54,960 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:30:54,960 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:30:55,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:30:55,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:30:55,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:30:55,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:30:55,183 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:30:55,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2022-01-10 18:30:55,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3193deead/52e849fc09a64704865bc81397fb3643/FLAGfcbc2dc59 [2022-01-10 18:30:55,618 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:30:55,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2022-01-10 18:30:55,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3193deead/52e849fc09a64704865bc81397fb3643/FLAGfcbc2dc59 [2022-01-10 18:30:55,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3193deead/52e849fc09a64704865bc81397fb3643 [2022-01-10 18:30:55,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:30:55,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:30:55,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:30:55,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:30:55,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:30:55,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:30:55" (1/1) ... [2022-01-10 18:30:55,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b80c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:55, skipping insertion in model container [2022-01-10 18:30:55,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:30:55" (1/1) ... [2022-01-10 18:30:55,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:30:56,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:30:56,219 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/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c[14595,14608] [2022-01-10 18:30:56,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:30:56,229 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:30:56,294 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/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c[14595,14608] [2022-01-10 18:30:56,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:30:56,310 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:30:56,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56 WrapperNode [2022-01-10 18:30:56,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:30:56,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:30:56,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:30:56,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:30:56,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,377 INFO L137 Inliner]: procedures = 32, calls = 47, calls flagged for inlining = 42, calls inlined = 60, statements flattened = 926 [2022-01-10 18:30:56,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:30:56,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:30:56,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:30:56,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:30:56,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:30:56,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:30:56,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:30:56,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:30:56,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (1/1) ... [2022-01-10 18:30:56,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:30:56,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:30:56,472 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 18:30:56,495 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 18:30:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:30:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:30:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:30:56,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:30:56,662 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:30:56,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:30:57,269 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:30:57,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:30:57,278 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:30:57,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:30:57 BoogieIcfgContainer [2022-01-10 18:30:57,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:30:57,281 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:30:57,281 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:30:57,282 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:30:57,286 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:30:57" (1/1) ... [2022-01-10 18:30:57,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:30:57 BasicIcfg [2022-01-10 18:30:57,706 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:30:57,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:30:57,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:30:57,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:30:57,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:30:55" (1/4) ... [2022-01-10 18:30:57,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d30ef7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:30:57, skipping insertion in model container [2022-01-10 18:30:57,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:30:56" (2/4) ... [2022-01-10 18:30:57,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d30ef7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:30:57, skipping insertion in model container [2022-01-10 18:30:57,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:30:57" (3/4) ... [2022-01-10 18:30:57,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d30ef7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:30:57, skipping insertion in model container [2022-01-10 18:30:57,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:30:57" (4/4) ... [2022-01-10 18:30:57,715 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.cTransformedIcfg [2022-01-10 18:30:57,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:30:57,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-01-10 18:30:57,759 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:30:57,765 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 18:30:57,765 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-01-10 18:30:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 273 states have (on average 1.695970695970696) internal successors, (463), 296 states have internal predecessors, (463), 0 states have call successors, (0), 0 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 18:30:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 18:30:57,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:57,793 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] [2022-01-10 18:30:57,794 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:57,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:57,800 INFO L85 PathProgramCache]: Analyzing trace with hash 486231716, now seen corresponding path program 1 times [2022-01-10 18:30:57,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:57,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728386407] [2022-01-10 18:30:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:57,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:58,057 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 18:30:58,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:58,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728386407] [2022-01-10 18:30:58,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728386407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:58,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:58,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:30:58,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430708420] [2022-01-10 18:30:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:58,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:30:58,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:30:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:30:58,099 INFO L87 Difference]: Start difference. First operand has 297 states, 273 states have (on average 1.695970695970696) internal successors, (463), 296 states have internal predecessors, (463), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 18:30:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:58,163 INFO L93 Difference]: Finished difference Result 578 states and 897 transitions. [2022-01-10 18:30:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:30:58,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-10 18:30:58,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:58,188 INFO L225 Difference]: With dead ends: 578 [2022-01-10 18:30:58,189 INFO L226 Difference]: Without dead ends: 293 [2022-01-10 18:30:58,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:30:58,198 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:58,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:58,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-01-10 18:30:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-01-10 18:30:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 270 states have (on average 1.5814814814814815) internal successors, (427), 292 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 18:30:58,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 427 transitions. [2022-01-10 18:30:58,272 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 427 transitions. Word has length 36 [2022-01-10 18:30:58,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:58,273 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 427 transitions. [2022-01-10 18:30:58,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 18:30:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 427 transitions. [2022-01-10 18:30:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 18:30:58,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:58,277 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] [2022-01-10 18:30:58,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:30:58,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash -871114172, now seen corresponding path program 1 times [2022-01-10 18:30:58,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:58,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677176397] [2022-01-10 18:30:58,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:58,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:58,515 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 18:30:58,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:58,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677176397] [2022-01-10 18:30:58,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677176397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:58,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:58,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:30:58,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805884631] [2022-01-10 18:30:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:58,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:30:58,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:30:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:30:58,519 INFO L87 Difference]: Start difference. First operand 293 states and 427 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 18:30:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:58,581 INFO L93 Difference]: Finished difference Result 648 states and 937 transitions. [2022-01-10 18:30:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:30:58,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-01-10 18:30:58,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:58,583 INFO L225 Difference]: With dead ends: 648 [2022-01-10 18:30:58,583 INFO L226 Difference]: Without dead ends: 372 [2022-01-10 18:30:58,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:30:58,585 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 336 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:58,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 638 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-01-10 18:30:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 269. [2022-01-10 18:30:58,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 250 states have (on average 1.564) internal successors, (391), 268 states have internal predecessors, (391), 0 states have call successors, (0), 0 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 18:30:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 391 transitions. [2022-01-10 18:30:58,607 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 391 transitions. Word has length 36 [2022-01-10 18:30:58,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:58,607 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 391 transitions. [2022-01-10 18:30:58,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 18:30:58,608 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 391 transitions. [2022-01-10 18:30:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 18:30:58,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:58,614 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] [2022-01-10 18:30:58,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:30:58,615 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -220128264, now seen corresponding path program 1 times [2022-01-10 18:30:58,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:58,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260900332] [2022-01-10 18:30:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:58,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:58,774 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 18:30:58,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:58,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260900332] [2022-01-10 18:30:58,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260900332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:58,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:58,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:30:58,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055111720] [2022-01-10 18:30:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:58,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:30:58,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:58,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:30:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:30:58,778 INFO L87 Difference]: Start difference. First operand 269 states and 391 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 18:30:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:58,815 INFO L93 Difference]: Finished difference Result 753 states and 1085 transitions. [2022-01-10 18:30:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:30:58,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 18:30:58,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:58,818 INFO L225 Difference]: With dead ends: 753 [2022-01-10 18:30:58,818 INFO L226 Difference]: Without dead ends: 501 [2022-01-10 18:30:58,821 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 18:30:58,824 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 316 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:58,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 775 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:58,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-01-10 18:30:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 306. [2022-01-10 18:30:58,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 287 states have (on average 1.5505226480836236) internal successors, (445), 305 states have internal predecessors, (445), 0 states have call successors, (0), 0 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 18:30:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 445 transitions. [2022-01-10 18:30:58,839 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 445 transitions. Word has length 46 [2022-01-10 18:30:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:58,840 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 445 transitions. [2022-01-10 18:30:58,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 18:30:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 445 transitions. [2022-01-10 18:30:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 18:30:58,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:58,842 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] [2022-01-10 18:30:58,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:30:58,842 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:58,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 433029186, now seen corresponding path program 1 times [2022-01-10 18:30:58,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:58,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758361272] [2022-01-10 18:30:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:58,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:58,934 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 18:30:58,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:58,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758361272] [2022-01-10 18:30:58,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758361272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:58,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:58,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:30:58,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740325128] [2022-01-10 18:30:58,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:58,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:30:58,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:30:58,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:30:58,937 INFO L87 Difference]: Start difference. First operand 306 states and 445 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:58,969 INFO L93 Difference]: Finished difference Result 838 states and 1209 transitions. [2022-01-10 18:30:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:30:58,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-10 18:30:58,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:58,973 INFO L225 Difference]: With dead ends: 838 [2022-01-10 18:30:58,973 INFO L226 Difference]: Without dead ends: 549 [2022-01-10 18:30:58,974 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 18:30:58,983 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 318 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:58,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 806 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:58,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-01-10 18:30:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 333. [2022-01-10 18:30:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 314 states have (on average 1.5445859872611465) internal successors, (485), 332 states have internal predecessors, (485), 0 states have call successors, (0), 0 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 18:30:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 485 transitions. [2022-01-10 18:30:58,998 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 485 transitions. Word has length 47 [2022-01-10 18:30:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:58,999 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 485 transitions. [2022-01-10 18:30:58,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 485 transitions. [2022-01-10 18:30:59,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 18:30:59,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,000 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] [2022-01-10 18:30:59,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:30:59,001 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1374425277, now seen corresponding path program 1 times [2022-01-10 18:30:59,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102130071] [2022-01-10 18:30:59,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:59,133 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 18:30:59,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:59,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102130071] [2022-01-10 18:30:59,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102130071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:59,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:59,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:30:59,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365477094] [2022-01-10 18:30:59,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:59,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:30:59,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:30:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:30:59,135 INFO L87 Difference]: Start difference. First operand 333 states and 485 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:59,176 INFO L93 Difference]: Finished difference Result 1012 states and 1461 transitions. [2022-01-10 18:30:59,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:30:59,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-10 18:30:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:59,182 INFO L225 Difference]: With dead ends: 1012 [2022-01-10 18:30:59,182 INFO L226 Difference]: Without dead ends: 696 [2022-01-10 18:30:59,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:30:59,183 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 785 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:59,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 913 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:59,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-10 18:30:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 328. [2022-01-10 18:30:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 310 states have (on average 1.538709677419355) internal successors, (477), 327 states have internal predecessors, (477), 0 states have call successors, (0), 0 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 18:30:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 477 transitions. [2022-01-10 18:30:59,199 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 477 transitions. Word has length 47 [2022-01-10 18:30:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:59,200 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 477 transitions. [2022-01-10 18:30:59,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,204 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 477 transitions. [2022-01-10 18:30:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 18:30:59,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,207 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] [2022-01-10 18:30:59,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:30:59,207 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash -389139282, now seen corresponding path program 1 times [2022-01-10 18:30:59,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579804880] [2022-01-10 18:30:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:30:59,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:59,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579804880] [2022-01-10 18:30:59,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579804880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:59,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:59,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:30:59,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397247085] [2022-01-10 18:30:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:59,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:30:59,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:59,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:30:59,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:30:59,349 INFO L87 Difference]: Start difference. First operand 328 states and 477 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:59,409 INFO L93 Difference]: Finished difference Result 810 states and 1178 transitions. [2022-01-10 18:30:59,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:30:59,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 18:30:59,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:59,413 INFO L225 Difference]: With dead ends: 810 [2022-01-10 18:30:59,413 INFO L226 Difference]: Without dead ends: 499 [2022-01-10 18:30:59,414 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 18:30:59,415 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 284 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:59,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 713 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-01-10 18:30:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 308. [2022-01-10 18:30:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 294 states have (on average 1.5136054421768708) internal successors, (445), 307 states have internal predecessors, (445), 0 states have call successors, (0), 0 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 18:30:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 445 transitions. [2022-01-10 18:30:59,429 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 445 transitions. Word has length 51 [2022-01-10 18:30:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:59,429 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 445 transitions. [2022-01-10 18:30:59,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 445 transitions. [2022-01-10 18:30:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 18:30:59,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,430 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] [2022-01-10 18:30:59,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:30:59,431 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash -53103205, now seen corresponding path program 1 times [2022-01-10 18:30:59,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408967589] [2022-01-10 18:30:59,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:59,505 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 18:30:59,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:59,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408967589] [2022-01-10 18:30:59,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408967589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:59,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:59,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:30:59,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391519014] [2022-01-10 18:30:59,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:59,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:30:59,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:30:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:30:59,507 INFO L87 Difference]: Start difference. First operand 308 states and 445 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:59,552 INFO L93 Difference]: Finished difference Result 749 states and 1076 transitions. [2022-01-10 18:30:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:30:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 18:30:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:59,555 INFO L225 Difference]: With dead ends: 749 [2022-01-10 18:30:59,555 INFO L226 Difference]: Without dead ends: 458 [2022-01-10 18:30:59,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:30:59,557 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 181 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:59,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 731 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:59,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-01-10 18:30:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 296. [2022-01-10 18:30:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 284 states have (on average 1.5035211267605635) internal successors, (427), 295 states have internal predecessors, (427), 0 states have call successors, (0), 0 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 18:30:59,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 427 transitions. [2022-01-10 18:30:59,574 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 427 transitions. Word has length 55 [2022-01-10 18:30:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:59,575 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 427 transitions. [2022-01-10 18:30:59,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,575 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 427 transitions. [2022-01-10 18:30:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 18:30:59,575 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,576 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] [2022-01-10 18:30:59,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:30:59,576 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,576 INFO L85 PathProgramCache]: Analyzing trace with hash 55253016, now seen corresponding path program 1 times [2022-01-10 18:30:59,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785690626] [2022-01-10 18:30:59,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:59,662 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 18:30:59,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:59,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785690626] [2022-01-10 18:30:59,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785690626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:59,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:59,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:30:59,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582285475] [2022-01-10 18:30:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:59,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:30:59,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:30:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:30:59,665 INFO L87 Difference]: Start difference. First operand 296 states and 427 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:59,760 INFO L93 Difference]: Finished difference Result 936 states and 1343 transitions. [2022-01-10 18:30:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:30:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 18:30:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:59,763 INFO L225 Difference]: With dead ends: 936 [2022-01-10 18:30:59,764 INFO L226 Difference]: Without dead ends: 657 [2022-01-10 18:30:59,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:30:59,765 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 427 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:59,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1051 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:59,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-01-10 18:30:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 266. [2022-01-10 18:30:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 260 states have (on average 1.4653846153846153) internal successors, (381), 265 states have internal predecessors, (381), 0 states have call successors, (0), 0 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 18:30:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 381 transitions. [2022-01-10 18:30:59,784 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 381 transitions. Word has length 56 [2022-01-10 18:30:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:59,785 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 381 transitions. [2022-01-10 18:30:59,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:30:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 381 transitions. [2022-01-10 18:30:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 18:30:59,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,786 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] [2022-01-10 18:30:59,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:30:59,786 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,787 INFO L85 PathProgramCache]: Analyzing trace with hash -549259309, now seen corresponding path program 1 times [2022-01-10 18:30:59,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487705192] [2022-01-10 18:30:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:30:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:30:59,896 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 18:30:59,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:30:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487705192] [2022-01-10 18:30:59,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487705192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:30:59,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:30:59,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:30:59,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269544381] [2022-01-10 18:30:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:30:59,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:30:59,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:30:59,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:30:59,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:30:59,898 INFO L87 Difference]: Start difference. First operand 266 states and 381 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 18:30:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:30:59,946 INFO L93 Difference]: Finished difference Result 518 states and 736 transitions. [2022-01-10 18:30:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:30:59,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-10 18:30:59,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:30:59,947 INFO L225 Difference]: With dead ends: 518 [2022-01-10 18:30:59,948 INFO L226 Difference]: Without dead ends: 266 [2022-01-10 18:30:59,948 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 18:30:59,950 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 1 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:30:59,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 841 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:30:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-01-10 18:30:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-01-10 18:30:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 260 states have (on average 1.4192307692307693) internal successors, (369), 265 states have internal predecessors, (369), 0 states have call successors, (0), 0 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 18:30:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 369 transitions. [2022-01-10 18:30:59,964 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 369 transitions. Word has length 61 [2022-01-10 18:30:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:30:59,965 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 369 transitions. [2022-01-10 18:30:59,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 18:30:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 369 transitions. [2022-01-10 18:30:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 18:30:59,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:30:59,965 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] [2022-01-10 18:30:59,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:30:59,966 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:30:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:30:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1877974752, now seen corresponding path program 1 times [2022-01-10 18:30:59,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:30:59,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628833922] [2022-01-10 18:30:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:30:59,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:00,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:00,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628833922] [2022-01-10 18:31:00,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628833922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:00,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:00,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:00,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048006300] [2022-01-10 18:31:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:00,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:00,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:00,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:00,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:00,132 INFO L87 Difference]: Start difference. First operand 266 states and 369 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:00,429 INFO L93 Difference]: Finished difference Result 834 states and 1168 transitions. [2022-01-10 18:31:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:31:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 18:31:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:00,432 INFO L225 Difference]: With dead ends: 834 [2022-01-10 18:31:00,432 INFO L226 Difference]: Without dead ends: 585 [2022-01-10 18:31:00,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:31:00,433 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 898 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:00,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 705 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-01-10 18:31:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 368. [2022-01-10 18:31:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 362 states have (on average 1.4033149171270718) internal successors, (508), 367 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 18:31:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 508 transitions. [2022-01-10 18:31:00,456 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 508 transitions. Word has length 72 [2022-01-10 18:31:00,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:00,456 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 508 transitions. [2022-01-10 18:31:00,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 508 transitions. [2022-01-10 18:31:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 18:31:00,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:00,457 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] [2022-01-10 18:31:00,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:31:00,457 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:00,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash -576946724, now seen corresponding path program 1 times [2022-01-10 18:31:00,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:00,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931494073] [2022-01-10 18:31:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:00,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:00,575 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 18:31:00,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:00,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931494073] [2022-01-10 18:31:00,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931494073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:00,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:00,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:00,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736429984] [2022-01-10 18:31:00,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:00,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:00,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:00,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:00,578 INFO L87 Difference]: Start difference. First operand 368 states and 508 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:00,861 INFO L93 Difference]: Finished difference Result 838 states and 1164 transitions. [2022-01-10 18:31:00,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:31:00,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 18:31:00,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:00,868 INFO L225 Difference]: With dead ends: 838 [2022-01-10 18:31:00,868 INFO L226 Difference]: Without dead ends: 589 [2022-01-10 18:31:00,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:31:00,869 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 895 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:00,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 707 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-01-10 18:31:00,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 372. [2022-01-10 18:31:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 366 states have (on average 1.3879781420765027) internal successors, (508), 371 states have internal predecessors, (508), 0 states have call successors, (0), 0 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 18:31:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 508 transitions. [2022-01-10 18:31:00,899 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 508 transitions. Word has length 73 [2022-01-10 18:31:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:00,900 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 508 transitions. [2022-01-10 18:31:00,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 508 transitions. [2022-01-10 18:31:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 18:31:00,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:00,905 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] [2022-01-10 18:31:00,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:31:00,905 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -981593419, now seen corresponding path program 1 times [2022-01-10 18:31:00,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:00,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249213966] [2022-01-10 18:31:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:00,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:01,046 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 18:31:01,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:01,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249213966] [2022-01-10 18:31:01,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249213966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:01,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:01,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:01,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878554546] [2022-01-10 18:31:01,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:01,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:01,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:01,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:01,048 INFO L87 Difference]: Start difference. First operand 372 states and 508 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:01,084 INFO L93 Difference]: Finished difference Result 623 states and 862 transitions. [2022-01-10 18:31:01,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:01,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 18:31:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:01,086 INFO L225 Difference]: With dead ends: 623 [2022-01-10 18:31:01,086 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 18:31:01,086 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 18:31:01,087 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 1 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:01,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 815 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 18:31:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-01-10 18:31:01,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 332 states have (on average 1.3975903614457832) internal successors, (464), 337 states have internal predecessors, (464), 0 states have call successors, (0), 0 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 18:31:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 464 transitions. [2022-01-10 18:31:01,108 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 464 transitions. Word has length 76 [2022-01-10 18:31:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:01,108 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 464 transitions. [2022-01-10 18:31:01,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 464 transitions. [2022-01-10 18:31:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 18:31:01,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:01,109 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] [2022-01-10 18:31:01,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:31:01,110 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1606349695, now seen corresponding path program 1 times [2022-01-10 18:31:01,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:01,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005311975] [2022-01-10 18:31:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:01,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:01,310 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 18:31:01,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:01,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005311975] [2022-01-10 18:31:01,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005311975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:01,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:01,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:01,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342720327] [2022-01-10 18:31:01,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:01,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:01,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:01,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:01,312 INFO L87 Difference]: Start difference. First operand 338 states and 464 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:01,462 INFO L93 Difference]: Finished difference Result 1244 states and 1729 transitions. [2022-01-10 18:31:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:01,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 18:31:01,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:01,466 INFO L225 Difference]: With dead ends: 1244 [2022-01-10 18:31:01,466 INFO L226 Difference]: Without dead ends: 1015 [2022-01-10 18:31:01,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:31:01,468 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1104 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:01,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2080 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:01,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2022-01-10 18:31:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 358. [2022-01-10 18:31:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 352 states have (on average 1.3778409090909092) internal successors, (485), 357 states have internal predecessors, (485), 0 states have call successors, (0), 0 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 18:31:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 485 transitions. [2022-01-10 18:31:01,496 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 485 transitions. Word has length 76 [2022-01-10 18:31:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:01,496 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 485 transitions. [2022-01-10 18:31:01,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 485 transitions. [2022-01-10 18:31:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 18:31:01,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:01,497 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] [2022-01-10 18:31:01,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:31:01,497 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1765624662, now seen corresponding path program 1 times [2022-01-10 18:31:01,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549968474] [2022-01-10 18:31:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:01,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:01,667 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 18:31:01,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:01,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549968474] [2022-01-10 18:31:01,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549968474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:01,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:01,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:01,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833397732] [2022-01-10 18:31:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:01,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:01,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:01,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:01,669 INFO L87 Difference]: Start difference. First operand 358 states and 485 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 18:31:01,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:01,974 INFO L93 Difference]: Finished difference Result 1480 states and 2043 transitions. [2022-01-10 18:31:01,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 18:31:01,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-10 18:31:01,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:01,979 INFO L225 Difference]: With dead ends: 1480 [2022-01-10 18:31:01,979 INFO L226 Difference]: Without dead ends: 1251 [2022-01-10 18:31:01,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:31:01,980 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 1351 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:01,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2648 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-01-10 18:31:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 386. [2022-01-10 18:31:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 380 states have (on average 1.3631578947368421) internal successors, (518), 385 states have internal predecessors, (518), 0 states have call successors, (0), 0 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 18:31:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 518 transitions. [2022-01-10 18:31:02,014 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 518 transitions. Word has length 80 [2022-01-10 18:31:02,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:02,014 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 518 transitions. [2022-01-10 18:31:02,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 18:31:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 518 transitions. [2022-01-10 18:31:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 18:31:02,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:02,015 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] [2022-01-10 18:31:02,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:31:02,015 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:02,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash -20370796, now seen corresponding path program 1 times [2022-01-10 18:31:02,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:02,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260173361] [2022-01-10 18:31:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:02,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:02,184 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 18:31:02,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:02,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260173361] [2022-01-10 18:31:02,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260173361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:02,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:02,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:02,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722913743] [2022-01-10 18:31:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:02,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:02,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:02,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:02,186 INFO L87 Difference]: Start difference. First operand 386 states and 518 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 18:31:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:02,363 INFO L93 Difference]: Finished difference Result 1119 states and 1540 transitions. [2022-01-10 18:31:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:02,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-10 18:31:02,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:02,366 INFO L225 Difference]: With dead ends: 1119 [2022-01-10 18:31:02,366 INFO L226 Difference]: Without dead ends: 869 [2022-01-10 18:31:02,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:31:02,370 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 880 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:02,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 1997 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:02,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-01-10 18:31:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 394. [2022-01-10 18:31:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 388 states have (on average 1.3556701030927836) internal successors, (526), 393 states have internal predecessors, (526), 0 states have call successors, (0), 0 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 18:31:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 526 transitions. [2022-01-10 18:31:02,406 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 526 transitions. Word has length 80 [2022-01-10 18:31:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:02,407 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 526 transitions. [2022-01-10 18:31:02,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 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 18:31:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 526 transitions. [2022-01-10 18:31:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 18:31:02,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:02,408 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] [2022-01-10 18:31:02,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:31:02,408 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1094761883, now seen corresponding path program 1 times [2022-01-10 18:31:02,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:02,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53547724] [2022-01-10 18:31:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:02,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:02,567 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 18:31:02,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:02,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53547724] [2022-01-10 18:31:02,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53547724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:02,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:02,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 18:31:02,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682347458] [2022-01-10 18:31:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:02,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:31:02,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:31:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:31:02,571 INFO L87 Difference]: Start difference. First operand 394 states and 526 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:02,832 INFO L93 Difference]: Finished difference Result 1353 states and 1854 transitions. [2022-01-10 18:31:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 18:31:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-10 18:31:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:02,836 INFO L225 Difference]: With dead ends: 1353 [2022-01-10 18:31:02,836 INFO L226 Difference]: Without dead ends: 1103 [2022-01-10 18:31:02,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:31:02,837 INFO L933 BasicCegarLoop]: 645 mSDtfsCounter, 1663 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:02,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1663 Valid, 2116 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-01-10 18:31:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 419. [2022-01-10 18:31:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 413 states have (on average 1.3389830508474576) internal successors, (553), 418 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 18:31:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 553 transitions. [2022-01-10 18:31:02,881 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 553 transitions. Word has length 81 [2022-01-10 18:31:02,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:02,881 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 553 transitions. [2022-01-10 18:31:02,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:02,881 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 553 transitions. [2022-01-10 18:31:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 18:31:02,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:02,882 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] [2022-01-10 18:31:02,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:31:02,882 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash -551357888, now seen corresponding path program 1 times [2022-01-10 18:31:02,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:02,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961779599] [2022-01-10 18:31:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:02,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:02,979 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 18:31:02,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:02,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961779599] [2022-01-10 18:31:02,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961779599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:02,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:02,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:02,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760204116] [2022-01-10 18:31:02,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:02,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:02,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:02,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:02,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:02,981 INFO L87 Difference]: Start difference. First operand 419 states and 553 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:03,065 INFO L93 Difference]: Finished difference Result 879 states and 1187 transitions. [2022-01-10 18:31:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:03,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-10 18:31:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:03,068 INFO L225 Difference]: With dead ends: 879 [2022-01-10 18:31:03,068 INFO L226 Difference]: Without dead ends: 615 [2022-01-10 18:31:03,068 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 18:31:03,069 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 189 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:03,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 652 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-01-10 18:31:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 417. [2022-01-10 18:31:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 411 states have (on average 1.3333333333333333) internal successors, (548), 416 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 18:31:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2022-01-10 18:31:03,109 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 81 [2022-01-10 18:31:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:03,110 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2022-01-10 18:31:03,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2022-01-10 18:31:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 18:31:03,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:03,111 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] [2022-01-10 18:31:03,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:31:03,111 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:03,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:03,111 INFO L85 PathProgramCache]: Analyzing trace with hash 180794084, now seen corresponding path program 1 times [2022-01-10 18:31:03,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:03,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837811367] [2022-01-10 18:31:03,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:03,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:03,396 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 18:31:03,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:03,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837811367] [2022-01-10 18:31:03,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837811367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:03,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:03,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:03,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439412360] [2022-01-10 18:31:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:03,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:03,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:03,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:03,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:03,398 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:03,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:03,613 INFO L93 Difference]: Finished difference Result 1109 states and 1473 transitions. [2022-01-10 18:31:03,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:03,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-10 18:31:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:03,616 INFO L225 Difference]: With dead ends: 1109 [2022-01-10 18:31:03,616 INFO L226 Difference]: Without dead ends: 847 [2022-01-10 18:31:03,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 18:31:03,617 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 561 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:03,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 984 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-01-10 18:31:03,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 653. [2022-01-10 18:31:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 647 states have (on average 1.3075734157650696) internal successors, (846), 652 states have internal predecessors, (846), 0 states have call successors, (0), 0 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 18:31:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 846 transitions. [2022-01-10 18:31:03,697 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 846 transitions. Word has length 81 [2022-01-10 18:31:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:03,697 INFO L470 AbstractCegarLoop]: Abstraction has 653 states and 846 transitions. [2022-01-10 18:31:03,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 18:31:03,697 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 846 transitions. [2022-01-10 18:31:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 18:31:03,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:03,698 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] [2022-01-10 18:31:03,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 18:31:03,699 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:03,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1363041892, now seen corresponding path program 1 times [2022-01-10 18:31:03,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:03,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110372775] [2022-01-10 18:31:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:03,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:03,822 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 18:31:03,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:03,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110372775] [2022-01-10 18:31:03,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110372775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:03,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:03,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:03,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353208905] [2022-01-10 18:31:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:03,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:03,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:03,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:03,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:03,824 INFO L87 Difference]: Start difference. First operand 653 states and 846 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:04,194 INFO L93 Difference]: Finished difference Result 1900 states and 2564 transitions. [2022-01-10 18:31:04,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:04,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 18:31:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:04,199 INFO L225 Difference]: With dead ends: 1900 [2022-01-10 18:31:04,199 INFO L226 Difference]: Without dead ends: 1460 [2022-01-10 18:31:04,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:31:04,200 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1258 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:04,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 1949 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:04,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-01-10 18:31:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 650. [2022-01-10 18:31:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 644 states have (on average 1.299689440993789) internal successors, (837), 649 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 18:31:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 837 transitions. [2022-01-10 18:31:04,279 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 837 transitions. Word has length 83 [2022-01-10 18:31:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:04,279 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 837 transitions. [2022-01-10 18:31:04,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 837 transitions. [2022-01-10 18:31:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 18:31:04,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:04,280 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] [2022-01-10 18:31:04,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 18:31:04,281 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1303827915, now seen corresponding path program 1 times [2022-01-10 18:31:04,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:04,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643393499] [2022-01-10 18:31:04,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:04,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:04,475 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 18:31:04,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:04,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643393499] [2022-01-10 18:31:04,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643393499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:04,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:04,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:04,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408533033] [2022-01-10 18:31:04,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:04,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:04,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:04,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:04,477 INFO L87 Difference]: Start difference. First operand 650 states and 837 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:04,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:04,720 INFO L93 Difference]: Finished difference Result 1671 states and 2192 transitions. [2022-01-10 18:31:04,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:04,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 18:31:04,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:04,724 INFO L225 Difference]: With dead ends: 1671 [2022-01-10 18:31:04,725 INFO L226 Difference]: Without dead ends: 1252 [2022-01-10 18:31:04,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:31:04,726 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 597 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:04,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 1039 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:04,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-01-10 18:31:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 916. [2022-01-10 18:31:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 910 states have (on average 1.2802197802197801) internal successors, (1165), 915 states have internal predecessors, (1165), 0 states have call successors, (0), 0 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 18:31:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1165 transitions. [2022-01-10 18:31:04,841 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1165 transitions. Word has length 83 [2022-01-10 18:31:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:04,841 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1165 transitions. [2022-01-10 18:31:04,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1165 transitions. [2022-01-10 18:31:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 18:31:04,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:04,842 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] [2022-01-10 18:31:04,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 18:31:04,843 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1555328660, now seen corresponding path program 1 times [2022-01-10 18:31:04,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:04,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620558800] [2022-01-10 18:31:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:04,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:04,914 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 18:31:04,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:04,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620558800] [2022-01-10 18:31:04,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620558800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:04,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:04,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:04,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100941777] [2022-01-10 18:31:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:04,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:04,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:04,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:04,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:04,917 INFO L87 Difference]: Start difference. First operand 916 states and 1165 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,278 INFO L93 Difference]: Finished difference Result 2334 states and 2989 transitions. [2022-01-10 18:31:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:05,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 18:31:05,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,284 INFO L225 Difference]: With dead ends: 2334 [2022-01-10 18:31:05,284 INFO L226 Difference]: Without dead ends: 1632 [2022-01-10 18:31:05,285 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 18:31:05,285 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 235 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 688 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-01-10 18:31:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 918. [2022-01-10 18:31:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 912 states have (on average 1.2796052631578947) internal successors, (1167), 917 states have internal predecessors, (1167), 0 states have call successors, (0), 0 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 18:31:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1167 transitions. [2022-01-10 18:31:05,447 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1167 transitions. Word has length 83 [2022-01-10 18:31:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:05,447 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1167 transitions. [2022-01-10 18:31:05,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1167 transitions. [2022-01-10 18:31:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 18:31:05,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:05,449 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] [2022-01-10 18:31:05,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 18:31:05,449 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash 639123146, now seen corresponding path program 1 times [2022-01-10 18:31:05,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:05,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948601547] [2022-01-10 18:31:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:05,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:05,617 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 18:31:05,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:05,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948601547] [2022-01-10 18:31:05,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948601547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:05,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:05,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:05,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8964732] [2022-01-10 18:31:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:05,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:05,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:05,619 INFO L87 Difference]: Start difference. First operand 918 states and 1167 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:05,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:05,934 INFO L93 Difference]: Finished difference Result 2037 states and 2637 transitions. [2022-01-10 18:31:05,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:05,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 18:31:05,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:05,939 INFO L225 Difference]: With dead ends: 2037 [2022-01-10 18:31:05,940 INFO L226 Difference]: Without dead ends: 1439 [2022-01-10 18:31:05,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 18:31:05,941 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 553 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:05,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 1163 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2022-01-10 18:31:06,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1235. [2022-01-10 18:31:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1229 states have (on average 1.2693246541903986) internal successors, (1560), 1234 states have internal predecessors, (1560), 0 states have call successors, (0), 0 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 18:31:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1560 transitions. [2022-01-10 18:31:06,194 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1560 transitions. Word has length 83 [2022-01-10 18:31:06,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:06,194 INFO L470 AbstractCegarLoop]: Abstraction has 1235 states and 1560 transitions. [2022-01-10 18:31:06,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 18:31:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1560 transitions. [2022-01-10 18:31:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 18:31:06,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:06,196 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] [2022-01-10 18:31:06,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 18:31:06,196 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:06,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:06,197 INFO L85 PathProgramCache]: Analyzing trace with hash -261367563, now seen corresponding path program 1 times [2022-01-10 18:31:06,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:06,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893061933] [2022-01-10 18:31:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:06,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:06,323 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 18:31:06,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:06,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893061933] [2022-01-10 18:31:06,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893061933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:06,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:06,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:06,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482037140] [2022-01-10 18:31:06,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:06,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:06,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:06,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:06,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:06,325 INFO L87 Difference]: Start difference. First operand 1235 states and 1560 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:06,813 INFO L93 Difference]: Finished difference Result 3169 states and 4151 transitions. [2022-01-10 18:31:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 18:31:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:06,820 INFO L225 Difference]: With dead ends: 3169 [2022-01-10 18:31:06,820 INFO L226 Difference]: Without dead ends: 2359 [2022-01-10 18:31:06,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:31:06,822 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 828 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:06,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1681 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:06,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2022-01-10 18:31:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 1329. [2022-01-10 18:31:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 1323 states have (on average 1.2630385487528344) internal successors, (1671), 1328 states have internal predecessors, (1671), 0 states have call successors, (0), 0 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 18:31:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1671 transitions. [2022-01-10 18:31:07,038 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1671 transitions. Word has length 84 [2022-01-10 18:31:07,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:07,039 INFO L470 AbstractCegarLoop]: Abstraction has 1329 states and 1671 transitions. [2022-01-10 18:31:07,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1671 transitions. [2022-01-10 18:31:07,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 18:31:07,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:07,040 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] [2022-01-10 18:31:07,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 18:31:07,040 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:07,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 606627215, now seen corresponding path program 1 times [2022-01-10 18:31:07,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:07,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372717442] [2022-01-10 18:31:07,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:07,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:07,284 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 18:31:07,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:07,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372717442] [2022-01-10 18:31:07,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372717442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:07,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:07,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:07,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331627641] [2022-01-10 18:31:07,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:07,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:07,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:07,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:07,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:07,288 INFO L87 Difference]: Start difference. First operand 1329 states and 1671 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:07,870 INFO L93 Difference]: Finished difference Result 2624 states and 3342 transitions. [2022-01-10 18:31:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:31:07,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 18:31:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:07,875 INFO L225 Difference]: With dead ends: 2624 [2022-01-10 18:31:07,875 INFO L226 Difference]: Without dead ends: 1373 [2022-01-10 18:31:07,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:31:07,877 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 956 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:07,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 660 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:31:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2022-01-10 18:31:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1041. [2022-01-10 18:31:08,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1035 states have (on average 1.285024154589372) internal successors, (1330), 1040 states have internal predecessors, (1330), 0 states have call successors, (0), 0 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 18:31:08,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1330 transitions. [2022-01-10 18:31:08,052 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1330 transitions. Word has length 84 [2022-01-10 18:31:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,053 INFO L470 AbstractCegarLoop]: Abstraction has 1041 states and 1330 transitions. [2022-01-10 18:31:08,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1330 transitions. [2022-01-10 18:31:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 18:31:08,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,054 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] [2022-01-10 18:31:08,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 18:31:08,054 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:08,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,054 INFO L85 PathProgramCache]: Analyzing trace with hash 623766766, now seen corresponding path program 1 times [2022-01-10 18:31:08,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417988248] [2022-01-10 18:31:08,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:08,149 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 18:31:08,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:08,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417988248] [2022-01-10 18:31:08,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417988248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:08,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:08,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:08,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220786109] [2022-01-10 18:31:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:08,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:08,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:08,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:08,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:08,151 INFO L87 Difference]: Start difference. First operand 1041 states and 1330 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:08,453 INFO L93 Difference]: Finished difference Result 2014 states and 2628 transitions. [2022-01-10 18:31:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:08,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-10 18:31:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:08,457 INFO L225 Difference]: With dead ends: 2014 [2022-01-10 18:31:08,457 INFO L226 Difference]: Without dead ends: 1204 [2022-01-10 18:31:08,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:08,459 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 494 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:08,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 645 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:08,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-01-10 18:31:08,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1033. [2022-01-10 18:31:08,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1029 states have (on average 1.2798833819241981) internal successors, (1317), 1032 states have internal predecessors, (1317), 0 states have call successors, (0), 0 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 18:31:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1317 transitions. [2022-01-10 18:31:08,654 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1317 transitions. Word has length 85 [2022-01-10 18:31:08,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:08,654 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1317 transitions. [2022-01-10 18:31:08,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1317 transitions. [2022-01-10 18:31:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 18:31:08,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:08,656 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] [2022-01-10 18:31:08,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 18:31:08,656 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:08,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1860265897, now seen corresponding path program 1 times [2022-01-10 18:31:08,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:08,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033160875] [2022-01-10 18:31:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:08,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:09,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:09,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033160875] [2022-01-10 18:31:09,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033160875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:09,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:09,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 18:31:09,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573557281] [2022-01-10 18:31:09,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:09,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 18:31:09,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 18:31:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:31:09,106 INFO L87 Difference]: Start difference. First operand 1033 states and 1317 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:11,009 INFO L93 Difference]: Finished difference Result 3007 states and 3867 transitions. [2022-01-10 18:31:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-10 18:31:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:11,016 INFO L225 Difference]: With dead ends: 3007 [2022-01-10 18:31:11,017 INFO L226 Difference]: Without dead ends: 2107 [2022-01-10 18:31:11,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-01-10 18:31:11,018 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1484 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:11,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 1957 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 18:31:11,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2022-01-10 18:31:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1033. [2022-01-10 18:31:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1029 states have (on average 1.2759961127308066) internal successors, (1313), 1032 states have internal predecessors, (1313), 0 states have call successors, (0), 0 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 18:31:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1313 transitions. [2022-01-10 18:31:11,306 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1313 transitions. Word has length 86 [2022-01-10 18:31:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:11,307 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1313 transitions. [2022-01-10 18:31:11,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1313 transitions. [2022-01-10 18:31:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 18:31:11,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:11,308 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] [2022-01-10 18:31:11,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 18:31:11,308 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash 727166201, now seen corresponding path program 1 times [2022-01-10 18:31:11,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:11,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813836343] [2022-01-10 18:31:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:11,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:11,394 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 18:31:11,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:11,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813836343] [2022-01-10 18:31:11,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813836343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:11,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:11,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:31:11,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348374567] [2022-01-10 18:31:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:11,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:31:11,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:11,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:31:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:31:11,396 INFO L87 Difference]: Start difference. First operand 1033 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:11,968 INFO L93 Difference]: Finished difference Result 2400 states and 3080 transitions. [2022-01-10 18:31:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:31:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-10 18:31:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:11,989 INFO L225 Difference]: With dead ends: 2400 [2022-01-10 18:31:11,989 INFO L226 Difference]: Without dead ends: 1504 [2022-01-10 18:31:11,991 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 18:31:11,991 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 223 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:11,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 623 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:31:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-01-10 18:31:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1037. [2022-01-10 18:31:12,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1033 states have (on average 1.2729912875121008) internal successors, (1315), 1036 states have internal predecessors, (1315), 0 states have call successors, (0), 0 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 18:31:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1315 transitions. [2022-01-10 18:31:12,275 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1315 transitions. Word has length 86 [2022-01-10 18:31:12,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:12,276 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1315 transitions. [2022-01-10 18:31:12,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:31:12,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1315 transitions. [2022-01-10 18:31:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 18:31:12,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:12,277 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] [2022-01-10 18:31:12,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 18:31:12,277 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1953665406, now seen corresponding path program 1 times [2022-01-10 18:31:12,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:12,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724358484] [2022-01-10 18:31:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:12,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:12,567 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 18:31:12,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:12,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724358484] [2022-01-10 18:31:12,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724358484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:12,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:12,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:12,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482085738] [2022-01-10 18:31:12,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:12,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:12,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:12,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:12,569 INFO L87 Difference]: Start difference. First operand 1037 states and 1315 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 18:31:13,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:13,512 INFO L93 Difference]: Finished difference Result 2357 states and 3027 transitions. [2022-01-10 18:31:13,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:31:13,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-10 18:31:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:13,517 INFO L225 Difference]: With dead ends: 2357 [2022-01-10 18:31:13,519 INFO L226 Difference]: Without dead ends: 1406 [2022-01-10 18:31:13,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:31:13,523 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 815 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:13,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 899 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 18:31:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2022-01-10 18:31:13,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 982. [2022-01-10 18:31:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 978 states have (on average 1.2740286298568506) internal successors, (1246), 981 states have internal predecessors, (1246), 0 states have call successors, (0), 0 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 18:31:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1246 transitions. [2022-01-10 18:31:13,847 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1246 transitions. Word has length 87 [2022-01-10 18:31:13,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:13,848 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 1246 transitions. [2022-01-10 18:31:13,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 18:31:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1246 transitions. [2022-01-10 18:31:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 18:31:13,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:13,849 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] [2022-01-10 18:31:13,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 18:31:13,849 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:13,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:13,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1399258190, now seen corresponding path program 1 times [2022-01-10 18:31:13,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:13,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730824674] [2022-01-10 18:31:13,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:13,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:13,973 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 18:31:13,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:13,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730824674] [2022-01-10 18:31:13,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730824674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:13,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:13,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:13,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297476739] [2022-01-10 18:31:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:13,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:13,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:13,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:13,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:13,976 INFO L87 Difference]: Start difference. First operand 982 states and 1246 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 18:31:14,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:14,730 INFO L93 Difference]: Finished difference Result 2689 states and 3546 transitions. [2022-01-10 18:31:14,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:14,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 18:31:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:14,735 INFO L225 Difference]: With dead ends: 2689 [2022-01-10 18:31:14,735 INFO L226 Difference]: Without dead ends: 1879 [2022-01-10 18:31:14,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:31:14,737 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 724 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:14,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 1474 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2022-01-10 18:31:15,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 992. [2022-01-10 18:31:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 988 states have (on average 1.271255060728745) internal successors, (1256), 991 states have internal predecessors, (1256), 0 states have call successors, (0), 0 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 18:31:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1256 transitions. [2022-01-10 18:31:15,070 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1256 transitions. Word has length 89 [2022-01-10 18:31:15,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:15,070 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1256 transitions. [2022-01-10 18:31:15,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 18:31:15,070 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1256 transitions. [2022-01-10 18:31:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 18:31:15,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:15,071 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] [2022-01-10 18:31:15,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 18:31:15,072 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash -665405476, now seen corresponding path program 1 times [2022-01-10 18:31:15,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:15,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080026829] [2022-01-10 18:31:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:15,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:15,182 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 18:31:15,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:15,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080026829] [2022-01-10 18:31:15,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080026829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:15,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:15,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:15,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350558238] [2022-01-10 18:31:15,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:15,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:15,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:15,183 INFO L87 Difference]: Start difference. First operand 992 states and 1256 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 18:31:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:16,055 INFO L93 Difference]: Finished difference Result 3123 states and 4133 transitions. [2022-01-10 18:31:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:31:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 18:31:16,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:16,061 INFO L225 Difference]: With dead ends: 3123 [2022-01-10 18:31:16,061 INFO L226 Difference]: Without dead ends: 2313 [2022-01-10 18:31:16,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:31:16,062 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 809 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:16,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 1714 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:16,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2022-01-10 18:31:16,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 986. [2022-01-10 18:31:16,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 982 states have (on average 1.2729124236252545) internal successors, (1250), 985 states have internal predecessors, (1250), 0 states have call successors, (0), 0 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 18:31:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1250 transitions. [2022-01-10 18:31:16,346 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1250 transitions. Word has length 89 [2022-01-10 18:31:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:16,346 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1250 transitions. [2022-01-10 18:31:16,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 18:31:16,346 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1250 transitions. [2022-01-10 18:31:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 18:31:16,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:16,347 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] [2022-01-10 18:31:16,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 18:31:16,347 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:16,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1017850670, now seen corresponding path program 1 times [2022-01-10 18:31:16,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:16,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468899008] [2022-01-10 18:31:16,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:16,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:16,437 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 18:31:16,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:16,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468899008] [2022-01-10 18:31:16,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468899008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:16,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:16,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:31:16,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179479467] [2022-01-10 18:31:16,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:16,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:31:16,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:16,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:31:16,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:31:16,439 INFO L87 Difference]: Start difference. First operand 986 states and 1250 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 18:31:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:16,906 INFO L93 Difference]: Finished difference Result 1321 states and 1738 transitions. [2022-01-10 18:31:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:16,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-10 18:31:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:16,909 INFO L225 Difference]: With dead ends: 1321 [2022-01-10 18:31:16,909 INFO L226 Difference]: Without dead ends: 1319 [2022-01-10 18:31:16,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:31:16,910 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 408 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:16,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 978 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-01-10 18:31:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 988. [2022-01-10 18:31:17,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 984 states have (on average 1.2723577235772359) internal successors, (1252), 987 states have internal predecessors, (1252), 0 states have call successors, (0), 0 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 18:31:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1252 transitions. [2022-01-10 18:31:17,161 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1252 transitions. Word has length 93 [2022-01-10 18:31:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:17,161 INFO L470 AbstractCegarLoop]: Abstraction has 988 states and 1252 transitions. [2022-01-10 18:31:17,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 18:31:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1252 transitions. [2022-01-10 18:31:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 18:31:17,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:17,162 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] [2022-01-10 18:31:17,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 18:31:17,162 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1461235801, now seen corresponding path program 1 times [2022-01-10 18:31:17,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:17,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120320341] [2022-01-10 18:31:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:17,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:17,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:17,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120320341] [2022-01-10 18:31:17,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120320341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:17,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:17,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:17,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31108431] [2022-01-10 18:31:17,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:17,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:17,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:17,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:17,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:17,255 INFO L87 Difference]: Start difference. First operand 988 states and 1252 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 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 18:31:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:17,765 INFO L93 Difference]: Finished difference Result 2167 states and 2823 transitions. [2022-01-10 18:31:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:31:17,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 18:31:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:17,768 INFO L225 Difference]: With dead ends: 2167 [2022-01-10 18:31:17,768 INFO L226 Difference]: Without dead ends: 1355 [2022-01-10 18:31:17,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:17,770 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 380 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:17,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 754 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2022-01-10 18:31:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 984. [2022-01-10 18:31:18,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 981 states have (on average 1.269113149847095) internal successors, (1245), 983 states have internal predecessors, (1245), 0 states have call successors, (0), 0 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 18:31:18,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1245 transitions. [2022-01-10 18:31:18,038 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1245 transitions. Word has length 94 [2022-01-10 18:31:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:18,038 INFO L470 AbstractCegarLoop]: Abstraction has 984 states and 1245 transitions. [2022-01-10 18:31:18,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 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 18:31:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1245 transitions. [2022-01-10 18:31:18,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:31:18,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:18,039 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] [2022-01-10 18:31:18,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 18:31:18,040 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:18,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1591149556, now seen corresponding path program 1 times [2022-01-10 18:31:18,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:18,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260067141] [2022-01-10 18:31:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:18,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:18,129 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 18:31:18,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:18,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260067141] [2022-01-10 18:31:18,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260067141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:18,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:18,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:18,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680050939] [2022-01-10 18:31:18,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:18,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:18,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:18,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:18,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:18,130 INFO L87 Difference]: Start difference. First operand 984 states and 1245 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 18:31:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:18,548 INFO L93 Difference]: Finished difference Result 2244 states and 2913 transitions. [2022-01-10 18:31:18,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:18,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 18:31:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:18,551 INFO L225 Difference]: With dead ends: 2244 [2022-01-10 18:31:18,551 INFO L226 Difference]: Without dead ends: 1436 [2022-01-10 18:31:18,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:18,552 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 337 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:18,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 908 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-01-10 18:31:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 980. [2022-01-10 18:31:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 978 states have (on average 1.2658486707566463) internal successors, (1238), 979 states have internal predecessors, (1238), 0 states have call successors, (0), 0 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 18:31:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1238 transitions. [2022-01-10 18:31:18,793 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1238 transitions. Word has length 99 [2022-01-10 18:31:18,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:18,793 INFO L470 AbstractCegarLoop]: Abstraction has 980 states and 1238 transitions. [2022-01-10 18:31:18,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 18:31:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1238 transitions. [2022-01-10 18:31:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 18:31:18,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:18,794 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] [2022-01-10 18:31:18,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 18:31:18,795 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:18,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1029461756, now seen corresponding path program 1 times [2022-01-10 18:31:18,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:18,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899343277] [2022-01-10 18:31:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:18,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:18,891 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 18:31:18,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:18,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899343277] [2022-01-10 18:31:18,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899343277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:18,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:18,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:31:18,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152035981] [2022-01-10 18:31:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:18,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:31:18,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:31:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:18,892 INFO L87 Difference]: Start difference. First operand 980 states and 1238 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 18:31:19,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:19,336 INFO L93 Difference]: Finished difference Result 2404 states and 3088 transitions. [2022-01-10 18:31:19,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:31:19,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-01-10 18:31:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:19,339 INFO L225 Difference]: With dead ends: 2404 [2022-01-10 18:31:19,339 INFO L226 Difference]: Without dead ends: 1600 [2022-01-10 18:31:19,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:31:19,341 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 360 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:19,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 859 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:31:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-01-10 18:31:19,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 976. [2022-01-10 18:31:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.2625641025641026) internal successors, (1231), 975 states have internal predecessors, (1231), 0 states have call successors, (0), 0 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 18:31:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1231 transitions. [2022-01-10 18:31:19,601 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1231 transitions. Word has length 107 [2022-01-10 18:31:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:19,601 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1231 transitions. [2022-01-10 18:31:19,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 18:31:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1231 transitions. [2022-01-10 18:31:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 18:31:19,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:19,602 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] [2022-01-10 18:31:19,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 18:31:19,602 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:19,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1667574958, now seen corresponding path program 1 times [2022-01-10 18:31:19,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:19,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310194124] [2022-01-10 18:31:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:19,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:19,874 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 18:31:19,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:19,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310194124] [2022-01-10 18:31:19,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310194124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:31:19,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:31:19,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:31:19,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424992160] [2022-01-10 18:31:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:31:19,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:31:19,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:19,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:31:19,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:31:19,876 INFO L87 Difference]: Start difference. First operand 976 states and 1231 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 18:31:20,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:31:20,630 INFO L93 Difference]: Finished difference Result 2354 states and 3125 transitions. [2022-01-10 18:31:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:31:20,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-10 18:31:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:31:20,633 INFO L225 Difference]: With dead ends: 2354 [2022-01-10 18:31:20,633 INFO L226 Difference]: Without dead ends: 1554 [2022-01-10 18:31:20,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-10 18:31:20,635 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 456 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:31:20,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 1359 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:31:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-01-10 18:31:20,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 982. [2022-01-10 18:31:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 1.2609582059123343) internal successors, (1237), 981 states have internal predecessors, (1237), 0 states have call successors, (0), 0 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 18:31:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1237 transitions. [2022-01-10 18:31:20,915 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1237 transitions. Word has length 119 [2022-01-10 18:31:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:31:20,916 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 1237 transitions. [2022-01-10 18:31:20,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 18:31:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1237 transitions. [2022-01-10 18:31:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-10 18:31:20,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:31:20,918 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:31:20,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 18:31:20,918 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-10 18:31:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:31:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash 386784257, now seen corresponding path program 1 times [2022-01-10 18:31:20,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:31:20,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49630341] [2022-01-10 18:31:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:20,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:31:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:22,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:31:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49630341] [2022-01-10 18:31:22,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49630341] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:31:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508416095] [2022-01-10 18:31:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:31:22,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:31:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:31:22,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:31:22,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 18:31:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:31:23,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-10 18:31:23,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:31:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:23,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:31:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:31:24,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508416095] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:31:24,018 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:31:24,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 7] total 22 [2022-01-10 18:31:24,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657759449] [2022-01-10 18:31:24,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:31:24,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-10 18:31:24,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:31:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-10 18:31:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-01-10 18:31:24,019 INFO L87 Difference]: Start difference. First operand 982 states and 1237 transitions. Second operand has 23 states, 23 states have (on average 17.043478260869566) internal successors, (392), 22 states have internal predecessors, (392), 0 states have call successors, (0), 0 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 18:31:50,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []