/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_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:07:57,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:07:57,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:07:57,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:07:57,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:07:57,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:07:57,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:07:57,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:07:57,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:07:57,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:07:57,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:07:57,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:07:57,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:07:57,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:07:57,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:07:57,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:07:57,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:07:57,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:07:57,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:07:57,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:07:57,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:07:58,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:07:58,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:07:58,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:07:58,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:07:58,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:07:58,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:07:58,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:07:58,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:07:58,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:07:58,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:07:58,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:07:58,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:07:58,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:07:58,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:07:58,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:07:58,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:07:58,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:07:58,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:07:58,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:07:58,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:07:58,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:07:58,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:07:58,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:07:58,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:07:58,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:07:58,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:07:58,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:07:58,041 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:07:58,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:07:58,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:07:58,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:07:58,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:07:58,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:07:58,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:07:58,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:07:58,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:07:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:07:58,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:07:58,045 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:07:58,045 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:07:58,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:07:58,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:07:58,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:07:58,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:07:58,255 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:07:58,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2022-01-11 06:07:58,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf5a0746/58eeaea00195460db86cec446b509f4f/FLAG3891f63f1 [2022-01-11 06:07:58,635 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:07:58,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2022-01-11 06:07:58,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf5a0746/58eeaea00195460db86cec446b509f4f/FLAG3891f63f1 [2022-01-11 06:07:59,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf5a0746/58eeaea00195460db86cec446b509f4f [2022-01-11 06:07:59,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:07:59,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:07:59,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:07:59,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:07:59,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:07:59,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599b0dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59, skipping insertion in model container [2022-01-11 06:07:59,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:07:59,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:07:59,316 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.4_1.ufo.BOUNDED-10.pals.c[14540,14553] [2022-01-11 06:07:59,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:07:59,325 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:07:59,388 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.4_1.ufo.BOUNDED-10.pals.c[14540,14553] [2022-01-11 06:07:59,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:07:59,411 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:07:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59 WrapperNode [2022-01-11 06:07:59,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:07:59,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:07:59,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:07:59,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:07:59,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,482 INFO L137 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 43, calls inlined = 61, statements flattened = 933 [2022-01-11 06:07:59,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:07:59,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:07:59,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:07:59,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:07:59,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:07:59,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:07:59,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:07:59,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:07:59,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (1/1) ... [2022-01-11 06:07:59,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:07:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:07:59,584 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) [2022-01-11 06:07:59,586 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 [2022-01-11 06:07:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:07:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:07:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:07:59,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:07:59,737 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:07:59,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:08:00,307 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:08:00,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:08:00,314 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 06:08:00,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:00 BoogieIcfgContainer [2022-01-11 06:08:00,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:08:00,320 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:08:00,320 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:08:00,335 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:08:00,338 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:00" (1/1) ... [2022-01-11 06:08:00,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:08:00 BasicIcfg [2022-01-11 06:08:00,636 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:08:00,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:08:00,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:08:00,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:08:00,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:07:59" (1/4) ... [2022-01-11 06:08:00,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c20f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:08:00, skipping insertion in model container [2022-01-11 06:08:00,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:07:59" (2/4) ... [2022-01-11 06:08:00,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c20f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:08:00, skipping insertion in model container [2022-01-11 06:08:00,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:08:00" (3/4) ... [2022-01-11 06:08:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c20f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:08:00, skipping insertion in model container [2022-01-11 06:08:00,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:08:00" (4/4) ... [2022-01-11 06:08:00,642 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.cTransformedIcfg [2022-01-11 06:08:00,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:08:00,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-01-11 06:08:00,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:08:00,694 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 [2022-01-11 06:08:00,694 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-01-11 06:08:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 299 states, 275 states have (on average 1.690909090909091) internal successors, (465), 298 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 06:08:00,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:00,718 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] [2022-01-11 06:08:00,718 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)] === [2022-01-11 06:08:00,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1739281272, now seen corresponding path program 1 times [2022-01-11 06:08:00,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:00,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331210076] [2022-01-11 06:08:00,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:00,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:00,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:00,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331210076] [2022-01-11 06:08:00,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331210076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:00,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:00,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 06:08:00,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497921844] [2022-01-11 06:08:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:00,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 06:08:00,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:00,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 06:08:00,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 06:08:00,961 INFO L87 Difference]: Start difference. First operand has 299 states, 275 states have (on average 1.690909090909091) internal successors, (465), 298 states have internal predecessors, (465), 0 states have call successors, (0), 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) [2022-01-11 06:08:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:01,003 INFO L93 Difference]: Finished difference Result 582 states and 901 transitions. [2022-01-11 06:08:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 06:08:01,009 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 [2022-01-11 06:08:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:01,020 INFO L225 Difference]: With dead ends: 582 [2022-01-11 06:08:01,020 INFO L226 Difference]: Without dead ends: 295 [2022-01-11 06:08:01,023 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 [2022-01-11 06:08:01,025 INFO L933 BasicCegarLoop]: 433 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, 433 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 [2022-01-11 06:08:01,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-01-11 06:08:01,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2022-01-11 06:08:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 272 states have (on average 1.5772058823529411) internal successors, (429), 294 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 429 transitions. [2022-01-11 06:08:01,086 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 429 transitions. Word has length 36 [2022-01-11 06:08:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:01,087 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 429 transitions. [2022-01-11 06:08:01,087 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) [2022-01-11 06:08:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 429 transitions. [2022-01-11 06:08:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 06:08:01,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:01,089 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] [2022-01-11 06:08:01,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:08:01,089 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)] === [2022-01-11 06:08:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:01,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1353816825, now seen corresponding path program 1 times [2022-01-11 06:08:01,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:01,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088848906] [2022-01-11 06:08:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:01,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:01,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:01,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088848906] [2022-01-11 06:08:01,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088848906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:01,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:01,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:01,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332799502] [2022-01-11 06:08:01,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:01,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:01,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:01,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:01,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:01,343 INFO L87 Difference]: Start difference. First operand 295 states and 429 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) [2022-01-11 06:08:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:01,413 INFO L93 Difference]: Finished difference Result 656 states and 947 transitions. [2022-01-11 06:08:01,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:01,414 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 [2022-01-11 06:08:01,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:01,417 INFO L225 Difference]: With dead ends: 656 [2022-01-11 06:08:01,418 INFO L226 Difference]: Without dead ends: 378 [2022-01-11 06:08:01,422 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 [2022-01-11 06:08:01,423 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 338 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 652 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 [2022-01-11 06:08:01,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 652 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-01-11 06:08:01,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 271. [2022-01-11 06:08:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 252 states have (on average 1.5595238095238095) internal successors, (393), 270 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 393 transitions. [2022-01-11 06:08:01,436 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 393 transitions. Word has length 36 [2022-01-11 06:08:01,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:01,436 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 393 transitions. [2022-01-11 06:08:01,437 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) [2022-01-11 06:08:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 393 transitions. [2022-01-11 06:08:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 06:08:01,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:01,438 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] [2022-01-11 06:08:01,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:08:01,438 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)] === [2022-01-11 06:08:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash 89482393, now seen corresponding path program 1 times [2022-01-11 06:08:01,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:01,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222027256] [2022-01-11 06:08:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:01,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:01,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:01,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222027256] [2022-01-11 06:08:01,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222027256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:01,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:01,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:01,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660702312] [2022-01-11 06:08:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:01,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:01,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:01,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:01,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:01,574 INFO L87 Difference]: Start difference. First operand 271 states and 393 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) [2022-01-11 06:08:01,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:01,599 INFO L93 Difference]: Finished difference Result 755 states and 1085 transitions. [2022-01-11 06:08:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:01,599 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 [2022-01-11 06:08:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:01,601 INFO L225 Difference]: With dead ends: 755 [2022-01-11 06:08:01,601 INFO L226 Difference]: Without dead ends: 501 [2022-01-11 06:08:01,603 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 [2022-01-11 06:08:01,607 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 312 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 779 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 [2022-01-11 06:08:01,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 779 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:01,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-01-11 06:08:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 306. [2022-01-11 06:08:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 287 states have (on average 1.543554006968641) internal successors, (443), 305 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 443 transitions. [2022-01-11 06:08:01,629 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 443 transitions. Word has length 46 [2022-01-11 06:08:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:01,629 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 443 transitions. [2022-01-11 06:08:01,630 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) [2022-01-11 06:08:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 443 transitions. [2022-01-11 06:08:01,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 06:08:01,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:01,632 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] [2022-01-11 06:08:01,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:08:01,632 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)] === [2022-01-11 06:08:01,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1441024966, now seen corresponding path program 1 times [2022-01-11 06:08:01,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:01,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003424052] [2022-01-11 06:08:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:01,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:01,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:01,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003424052] [2022-01-11 06:08:01,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003424052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:01,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:01,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:01,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193270159] [2022-01-11 06:08:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:01,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:01,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:01,719 INFO L87 Difference]: Start difference. First operand 306 states and 443 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) [2022-01-11 06:08:01,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:01,744 INFO L93 Difference]: Finished difference Result 838 states and 1203 transitions. [2022-01-11 06:08:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:01,744 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 [2022-01-11 06:08:01,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:01,747 INFO L225 Difference]: With dead ends: 838 [2022-01-11 06:08:01,747 INFO L226 Difference]: Without dead ends: 549 [2022-01-11 06:08:01,748 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 [2022-01-11 06:08:01,753 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 320 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 816 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 [2022-01-11 06:08:01,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 816 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-01-11 06:08:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 329. [2022-01-11 06:08:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 310 states have (on average 1.532258064516129) internal successors, (475), 328 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:01,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 475 transitions. [2022-01-11 06:08:01,766 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 475 transitions. Word has length 47 [2022-01-11 06:08:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:01,767 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 475 transitions. [2022-01-11 06:08:01,767 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) [2022-01-11 06:08:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 475 transitions. [2022-01-11 06:08:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 06:08:01,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:01,771 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] [2022-01-11 06:08:01,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:08:01,772 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)] === [2022-01-11 06:08:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash -366429497, now seen corresponding path program 1 times [2022-01-11 06:08:01,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198769608] [2022-01-11 06:08:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:01,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:01,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:01,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198769608] [2022-01-11 06:08:01,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198769608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:01,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:01,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:01,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057555755] [2022-01-11 06:08:01,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:01,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:01,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:01,871 INFO L87 Difference]: Start difference. First operand 329 states and 475 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) [2022-01-11 06:08:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:01,920 INFO L93 Difference]: Finished difference Result 996 states and 1421 transitions. [2022-01-11 06:08:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:01,921 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 [2022-01-11 06:08:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:01,923 INFO L225 Difference]: With dead ends: 996 [2022-01-11 06:08:01,923 INFO L226 Difference]: Without dead ends: 684 [2022-01-11 06:08:01,924 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 [2022-01-11 06:08:01,924 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 791 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 921 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 [2022-01-11 06:08:01,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 921 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:01,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-11 06:08:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 324. [2022-01-11 06:08:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 306 states have (on average 1.526143790849673) internal successors, (467), 323 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 467 transitions. [2022-01-11 06:08:01,936 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 467 transitions. Word has length 47 [2022-01-11 06:08:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:01,937 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 467 transitions. [2022-01-11 06:08:01,937 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) [2022-01-11 06:08:01,939 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 467 transitions. [2022-01-11 06:08:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 06:08:01,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:01,944 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] [2022-01-11 06:08:01,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:08:01,945 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)] === [2022-01-11 06:08:01,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:01,945 INFO L85 PathProgramCache]: Analyzing trace with hash 785119090, now seen corresponding path program 1 times [2022-01-11 06:08:01,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:01,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188224108] [2022-01-11 06:08:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:01,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:02,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:02,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:02,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188224108] [2022-01-11 06:08:02,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188224108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:02,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:02,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:02,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165088834] [2022-01-11 06:08:02,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:02,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:02,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:02,043 INFO L87 Difference]: Start difference. First operand 324 states and 467 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) [2022-01-11 06:08:02,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:02,120 INFO L93 Difference]: Finished difference Result 798 states and 1148 transitions. [2022-01-11 06:08:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:02,121 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 [2022-01-11 06:08:02,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:02,125 INFO L225 Difference]: With dead ends: 798 [2022-01-11 06:08:02,125 INFO L226 Difference]: Without dead ends: 491 [2022-01-11 06:08:02,127 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 [2022-01-11 06:08:02,128 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 286 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:02,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 719 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:02,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-01-11 06:08:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 304. [2022-01-11 06:08:02,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.5) internal successors, (435), 303 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 435 transitions. [2022-01-11 06:08:02,146 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 435 transitions. Word has length 51 [2022-01-11 06:08:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:02,146 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 435 transitions. [2022-01-11 06:08:02,146 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) [2022-01-11 06:08:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 435 transitions. [2022-01-11 06:08:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 06:08:02,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:02,147 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] [2022-01-11 06:08:02,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:08:02,148 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)] === [2022-01-11 06:08:02,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1259417697, now seen corresponding path program 1 times [2022-01-11 06:08:02,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:02,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047183741] [2022-01-11 06:08:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:02,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:02,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:02,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047183741] [2022-01-11 06:08:02,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047183741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:02,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:02,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:02,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482810232] [2022-01-11 06:08:02,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:02,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:02,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:02,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:02,256 INFO L87 Difference]: Start difference. First operand 304 states and 435 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) [2022-01-11 06:08:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:02,304 INFO L93 Difference]: Finished difference Result 737 states and 1046 transitions. [2022-01-11 06:08:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:02,305 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 [2022-01-11 06:08:02,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:02,308 INFO L225 Difference]: With dead ends: 737 [2022-01-11 06:08:02,308 INFO L226 Difference]: Without dead ends: 450 [2022-01-11 06:08:02,308 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 [2022-01-11 06:08:02,310 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 183 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 737 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 [2022-01-11 06:08:02,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 737 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:02,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-01-11 06:08:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 292. [2022-01-11 06:08:02,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 280 states have (on average 1.4892857142857143) internal successors, (417), 291 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:02,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 417 transitions. [2022-01-11 06:08:02,324 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 417 transitions. Word has length 55 [2022-01-11 06:08:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:02,324 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 417 transitions. [2022-01-11 06:08:02,324 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) [2022-01-11 06:08:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 417 transitions. [2022-01-11 06:08:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 06:08:02,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:02,325 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] [2022-01-11 06:08:02,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:08:02,325 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)] === [2022-01-11 06:08:02,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1314209433, now seen corresponding path program 1 times [2022-01-11 06:08:02,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:02,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404293757] [2022-01-11 06:08:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:02,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:02,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:02,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404293757] [2022-01-11 06:08:02,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404293757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:02,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:02,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:02,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899633569] [2022-01-11 06:08:02,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:02,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:02,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:02,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:02,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:02,397 INFO L87 Difference]: Start difference. First operand 292 states and 417 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) [2022-01-11 06:08:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:02,452 INFO L93 Difference]: Finished difference Result 920 states and 1303 transitions. [2022-01-11 06:08:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:02,453 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 [2022-01-11 06:08:02,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:02,455 INFO L225 Difference]: With dead ends: 920 [2022-01-11 06:08:02,455 INFO L226 Difference]: Without dead ends: 645 [2022-01-11 06:08:02,455 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 [2022-01-11 06:08:02,456 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 431 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1061 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 [2022-01-11 06:08:02,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1061 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-01-11 06:08:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 262. [2022-01-11 06:08:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.44921875) internal successors, (371), 261 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 371 transitions. [2022-01-11 06:08:02,469 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 371 transitions. Word has length 56 [2022-01-11 06:08:02,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:02,469 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 371 transitions. [2022-01-11 06:08:02,469 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) [2022-01-11 06:08:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 371 transitions. [2022-01-11 06:08:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 06:08:02,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:02,470 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] [2022-01-11 06:08:02,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 06:08:02,470 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)] === [2022-01-11 06:08:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:02,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1626699593, now seen corresponding path program 1 times [2022-01-11 06:08:02,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:02,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226346794] [2022-01-11 06:08:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:02,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:02,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:02,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226346794] [2022-01-11 06:08:02,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226346794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:02,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:02,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:02,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50607119] [2022-01-11 06:08:02,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:02,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:02,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:02,602 INFO L87 Difference]: Start difference. First operand 262 states and 371 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) [2022-01-11 06:08:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:02,629 INFO L93 Difference]: Finished difference Result 510 states and 716 transitions. [2022-01-11 06:08:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:02,635 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 [2022-01-11 06:08:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:02,636 INFO L225 Difference]: With dead ends: 510 [2022-01-11 06:08:02,636 INFO L226 Difference]: Without dead ends: 262 [2022-01-11 06:08:02,637 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 [2022-01-11 06:08:02,637 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 847 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 [2022-01-11 06:08:02,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 847 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:02,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-01-11 06:08:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-01-11 06:08:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 256 states have (on average 1.40234375) internal successors, (359), 261 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 359 transitions. [2022-01-11 06:08:02,648 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 359 transitions. Word has length 61 [2022-01-11 06:08:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:02,648 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 359 transitions. [2022-01-11 06:08:02,648 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) [2022-01-11 06:08:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 359 transitions. [2022-01-11 06:08:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 06:08:02,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:02,649 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] [2022-01-11 06:08:02,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 06:08:02,649 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)] === [2022-01-11 06:08:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:02,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2120710015, now seen corresponding path program 1 times [2022-01-11 06:08:02,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:02,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015751166] [2022-01-11 06:08:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:02,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:02,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:02,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015751166] [2022-01-11 06:08:02,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015751166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:02,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:02,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:02,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567073543] [2022-01-11 06:08:02,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:02,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:02,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:02,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:02,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:02,823 INFO L87 Difference]: Start difference. First operand 262 states and 359 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) [2022-01-11 06:08:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:03,078 INFO L93 Difference]: Finished difference Result 830 states and 1152 transitions. [2022-01-11 06:08:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 06:08:03,079 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 [2022-01-11 06:08:03,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:03,080 INFO L225 Difference]: With dead ends: 830 [2022-01-11 06:08:03,080 INFO L226 Difference]: Without dead ends: 585 [2022-01-11 06:08:03,081 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 [2022-01-11 06:08:03,081 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 915 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:03,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 727 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-01-11 06:08:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 364. [2022-01-11 06:08:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 358 states have (on average 1.3966480446927374) internal successors, (500), 363 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 500 transitions. [2022-01-11 06:08:03,098 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 500 transitions. Word has length 72 [2022-01-11 06:08:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 500 transitions. [2022-01-11 06:08:03,098 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) [2022-01-11 06:08:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 500 transitions. [2022-01-11 06:08:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 06:08:03,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:03,099 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] [2022-01-11 06:08:03,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 06:08:03,100 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)] === [2022-01-11 06:08:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash 24412192, now seen corresponding path program 1 times [2022-01-11 06:08:03,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:03,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82543682] [2022-01-11 06:08:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:03,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:03,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82543682] [2022-01-11 06:08:03,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82543682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:03,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:03,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:03,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840595455] [2022-01-11 06:08:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:03,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:03,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:03,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:03,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:03,211 INFO L87 Difference]: Start difference. First operand 364 states and 500 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) [2022-01-11 06:08:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:03,461 INFO L93 Difference]: Finished difference Result 830 states and 1144 transitions. [2022-01-11 06:08:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 06:08:03,462 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 [2022-01-11 06:08:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:03,464 INFO L225 Difference]: With dead ends: 830 [2022-01-11 06:08:03,464 INFO L226 Difference]: Without dead ends: 585 [2022-01-11 06:08:03,465 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 [2022-01-11 06:08:03,466 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 911 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:03,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 730 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 06:08:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-01-11 06:08:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 364. [2022-01-11 06:08:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 358 states have (on average 1.3854748603351956) internal successors, (496), 363 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 496 transitions. [2022-01-11 06:08:03,484 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 496 transitions. Word has length 73 [2022-01-11 06:08:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:03,484 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 496 transitions. [2022-01-11 06:08:03,484 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) [2022-01-11 06:08:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 496 transitions. [2022-01-11 06:08:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 06:08:03,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:03,488 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] [2022-01-11 06:08:03,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 06:08:03,489 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)] === [2022-01-11 06:08:03,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:03,489 INFO L85 PathProgramCache]: Analyzing trace with hash 570271899, now seen corresponding path program 1 times [2022-01-11 06:08:03,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:03,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968333823] [2022-01-11 06:08:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:03,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:03,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:03,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968333823] [2022-01-11 06:08:03,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968333823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:03,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:03,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:03,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943690020] [2022-01-11 06:08:03,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:03,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:03,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:03,589 INFO L87 Difference]: Start difference. First operand 364 states and 496 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:03,616 INFO L93 Difference]: Finished difference Result 611 states and 840 transitions. [2022-01-11 06:08:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-11 06:08:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:03,617 INFO L225 Difference]: With dead ends: 611 [2022-01-11 06:08:03,617 INFO L226 Difference]: Without dead ends: 334 [2022-01-11 06:08:03,618 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 [2022-01-11 06:08:03,618 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 821 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 [2022-01-11 06:08:03,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 821 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-11 06:08:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-01-11 06:08:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 328 states have (on average 1.396341463414634) internal successors, (458), 333 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 458 transitions. [2022-01-11 06:08:03,634 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 458 transitions. Word has length 74 [2022-01-11 06:08:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:03,634 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 458 transitions. [2022-01-11 06:08:03,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 458 transitions. [2022-01-11 06:08:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 06:08:03,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:03,635 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] [2022-01-11 06:08:03,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 06:08:03,635 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)] === [2022-01-11 06:08:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash 348176892, now seen corresponding path program 1 times [2022-01-11 06:08:03,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:03,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774170940] [2022-01-11 06:08:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:03,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:03,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:03,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774170940] [2022-01-11 06:08:03,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774170940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:03,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:03,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:03,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074013807] [2022-01-11 06:08:03,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:03,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:03,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:03,820 INFO L87 Difference]: Start difference. First operand 334 states and 458 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:03,938 INFO L93 Difference]: Finished difference Result 1232 states and 1699 transitions. [2022-01-11 06:08:03,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:03,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-11 06:08:03,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:03,942 INFO L225 Difference]: With dead ends: 1232 [2022-01-11 06:08:03,942 INFO L226 Difference]: Without dead ends: 1005 [2022-01-11 06:08:03,942 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 [2022-01-11 06:08:03,943 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1118 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 2104 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 [2022-01-11 06:08:03,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 2104 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-01-11 06:08:03,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 354. [2022-01-11 06:08:03,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 348 states have (on average 1.3764367816091954) internal successors, (479), 353 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 479 transitions. [2022-01-11 06:08:03,961 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 479 transitions. Word has length 74 [2022-01-11 06:08:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:03,961 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 479 transitions. [2022-01-11 06:08:03,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 479 transitions. [2022-01-11 06:08:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 06:08:03,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:03,962 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] [2022-01-11 06:08:03,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 06:08:03,963 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)] === [2022-01-11 06:08:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2086525807, now seen corresponding path program 1 times [2022-01-11 06:08:03,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:03,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713612531] [2022-01-11 06:08:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:03,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:04,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:04,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713612531] [2022-01-11 06:08:04,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713612531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:04,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:04,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:04,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659020473] [2022-01-11 06:08:04,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:04,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:04,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:04,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:04,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:04,106 INFO L87 Difference]: Start difference. First operand 354 states and 479 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:04,336 INFO L93 Difference]: Finished difference Result 1480 states and 2031 transitions. [2022-01-11 06:08:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:04,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 06:08:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:04,340 INFO L225 Difference]: With dead ends: 1480 [2022-01-11 06:08:04,340 INFO L226 Difference]: Without dead ends: 1253 [2022-01-11 06:08:04,341 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 [2022-01-11 06:08:04,342 INFO L933 BasicCegarLoop]: 794 mSDtfsCounter, 1379 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2664 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 [2022-01-11 06:08:04,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 2664 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2022-01-11 06:08:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 382. [2022-01-11 06:08:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 376 states have (on average 1.3617021276595744) internal successors, (512), 381 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 512 transitions. [2022-01-11 06:08:04,368 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 512 transitions. Word has length 78 [2022-01-11 06:08:04,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:04,369 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 512 transitions. [2022-01-11 06:08:04,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,369 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 512 transitions. [2022-01-11 06:08:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 06:08:04,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:04,369 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] [2022-01-11 06:08:04,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 06:08:04,370 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)] === [2022-01-11 06:08:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash 422446031, now seen corresponding path program 1 times [2022-01-11 06:08:04,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:04,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071019056] [2022-01-11 06:08:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:04,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:04,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:04,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071019056] [2022-01-11 06:08:04,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071019056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:04,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:04,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:04,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263546683] [2022-01-11 06:08:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:04,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:04,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:04,498 INFO L87 Difference]: Start difference. First operand 382 states and 512 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:04,642 INFO L93 Difference]: Finished difference Result 1109 states and 1516 transitions. [2022-01-11 06:08:04,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:04,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 06:08:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:04,645 INFO L225 Difference]: With dead ends: 1109 [2022-01-11 06:08:04,645 INFO L226 Difference]: Without dead ends: 861 [2022-01-11 06:08:04,649 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 [2022-01-11 06:08:04,650 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 890 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2025 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 [2022-01-11 06:08:04,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 2025 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-01-11 06:08:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 390. [2022-01-11 06:08:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 384 states have (on average 1.3541666666666667) internal successors, (520), 389 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 520 transitions. [2022-01-11 06:08:04,678 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 520 transitions. Word has length 78 [2022-01-11 06:08:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:04,678 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 520 transitions. [2022-01-11 06:08:04,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:04,678 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 520 transitions. [2022-01-11 06:08:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 06:08:04,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:04,679 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] [2022-01-11 06:08:04,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 06:08:04,679 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)] === [2022-01-11 06:08:04,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:04,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1627314158, now seen corresponding path program 1 times [2022-01-11 06:08:04,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:04,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661635223] [2022-01-11 06:08:04,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:04,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:04,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:04,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661635223] [2022-01-11 06:08:04,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661635223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:04,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:04,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:08:04,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906460193] [2022-01-11 06:08:04,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:04,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:04,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:04,833 INFO L87 Difference]: Start difference. First operand 390 states and 520 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:05,038 INFO L93 Difference]: Finished difference Result 1341 states and 1824 transitions. [2022-01-11 06:08:05,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:05,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 06:08:05,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:05,042 INFO L225 Difference]: With dead ends: 1341 [2022-01-11 06:08:05,042 INFO L226 Difference]: Without dead ends: 1093 [2022-01-11 06:08:05,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:05,043 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 1331 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:05,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 2574 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:05,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2022-01-11 06:08:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 415. [2022-01-11 06:08:05,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 409 states have (on average 1.337408312958435) internal successors, (547), 414 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 547 transitions. [2022-01-11 06:08:05,075 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 547 transitions. Word has length 79 [2022-01-11 06:08:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:05,075 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 547 transitions. [2022-01-11 06:08:05,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 547 transitions. [2022-01-11 06:08:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 06:08:05,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:05,076 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] [2022-01-11 06:08:05,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 06:08:05,076 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)] === [2022-01-11 06:08:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -468050204, now seen corresponding path program 1 times [2022-01-11 06:08:05,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:05,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571906026] [2022-01-11 06:08:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:05,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:05,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571906026] [2022-01-11 06:08:05,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571906026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:05,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:05,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:05,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443733016] [2022-01-11 06:08:05,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:05,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:05,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:05,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:05,298 INFO L87 Difference]: Start difference. First operand 415 states and 547 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:05,484 INFO L93 Difference]: Finished difference Result 1106 states and 1472 transitions. [2022-01-11 06:08:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 06:08:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:05,487 INFO L225 Difference]: With dead ends: 1106 [2022-01-11 06:08:05,487 INFO L226 Difference]: Without dead ends: 844 [2022-01-11 06:08:05,487 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 [2022-01-11 06:08:05,489 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 571 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1012 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 [2022-01-11 06:08:05,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 1012 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-01-11 06:08:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 645. [2022-01-11 06:08:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 639 states have (on average 1.3114241001564946) internal successors, (838), 644 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 838 transitions. [2022-01-11 06:08:05,539 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 838 transitions. Word has length 79 [2022-01-11 06:08:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:05,540 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 838 transitions. [2022-01-11 06:08:05,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 838 transitions. [2022-01-11 06:08:05,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:05,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:05,541 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] [2022-01-11 06:08:05,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 06:08:05,541 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)] === [2022-01-11 06:08:05,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2072930603, now seen corresponding path program 1 times [2022-01-11 06:08:05,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:05,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979364781] [2022-01-11 06:08:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:05,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:05,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979364781] [2022-01-11 06:08:05,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979364781] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:05,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:05,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:05,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306669261] [2022-01-11 06:08:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:05,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:05,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:05,689 INFO L87 Difference]: Start difference. First operand 645 states and 838 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) [2022-01-11 06:08:05,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:05,904 INFO L93 Difference]: Finished difference Result 1659 states and 2195 transitions. [2022-01-11 06:08:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:05,905 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 [2022-01-11 06:08:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:05,909 INFO L225 Difference]: With dead ends: 1659 [2022-01-11 06:08:05,909 INFO L226 Difference]: Without dead ends: 1251 [2022-01-11 06:08:05,910 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 [2022-01-11 06:08:05,910 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 619 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1196 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 [2022-01-11 06:08:05,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 1196 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-01-11 06:08:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 906. [2022-01-11 06:08:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 900 states have (on average 1.2922222222222222) internal successors, (1163), 905 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1163 transitions. [2022-01-11 06:08:06,005 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1163 transitions. Word has length 81 [2022-01-11 06:08:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:06,006 INFO L470 AbstractCegarLoop]: Abstraction has 906 states and 1163 transitions. [2022-01-11 06:08:06,006 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) [2022-01-11 06:08:06,006 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1163 transitions. [2022-01-11 06:08:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:06,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:06,007 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] [2022-01-11 06:08:06,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 06:08:06,007 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)] === [2022-01-11 06:08:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1584295643, now seen corresponding path program 1 times [2022-01-11 06:08:06,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:06,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344772021] [2022-01-11 06:08:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:06,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:06,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:06,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344772021] [2022-01-11 06:08:06,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344772021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:06,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:06,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:06,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994366837] [2022-01-11 06:08:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:06,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:06,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:06,074 INFO L87 Difference]: Start difference. First operand 906 states and 1163 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) [2022-01-11 06:08:06,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:06,199 INFO L93 Difference]: Finished difference Result 1893 states and 2483 transitions. [2022-01-11 06:08:06,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:06,199 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 [2022-01-11 06:08:06,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:06,203 INFO L225 Difference]: With dead ends: 1893 [2022-01-11 06:08:06,203 INFO L226 Difference]: Without dead ends: 1318 [2022-01-11 06:08:06,204 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 [2022-01-11 06:08:06,204 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 191 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 672 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 [2022-01-11 06:08:06,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 672 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-01-11 06:08:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 898. [2022-01-11 06:08:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 892 states have (on average 1.2836322869955157) internal successors, (1145), 897 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1145 transitions. [2022-01-11 06:08:06,271 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1145 transitions. Word has length 81 [2022-01-11 06:08:06,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:06,271 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1145 transitions. [2022-01-11 06:08:06,272 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) [2022-01-11 06:08:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1145 transitions. [2022-01-11 06:08:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:06,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:06,273 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] [2022-01-11 06:08:06,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 06:08:06,273 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)] === [2022-01-11 06:08:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:06,273 INFO L85 PathProgramCache]: Analyzing trace with hash -820393298, now seen corresponding path program 1 times [2022-01-11 06:08:06,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:06,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976532602] [2022-01-11 06:08:06,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:06,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:06,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:06,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976532602] [2022-01-11 06:08:06,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976532602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:06,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:06,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:06,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111399070] [2022-01-11 06:08:06,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:06,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:06,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:06,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:06,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:06,392 INFO L87 Difference]: Start difference. First operand 898 states and 1145 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2022-01-11 06:08:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:06,675 INFO L93 Difference]: Finished difference Result 2546 states and 3365 transitions. [2022-01-11 06:08:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:06,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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 [2022-01-11 06:08:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:06,680 INFO L225 Difference]: With dead ends: 2546 [2022-01-11 06:08:06,680 INFO L226 Difference]: Without dead ends: 1919 [2022-01-11 06:08:06,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:06,681 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1268 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 1935 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 [2022-01-11 06:08:06,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 1935 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2022-01-11 06:08:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 892. [2022-01-11 06:08:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 886 states have (on average 1.2742663656884876) internal successors, (1129), 891 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1129 transitions. [2022-01-11 06:08:06,789 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1129 transitions. Word has length 81 [2022-01-11 06:08:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:06,789 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1129 transitions. [2022-01-11 06:08:06,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 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) [2022-01-11 06:08:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1129 transitions. [2022-01-11 06:08:06,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 06:08:06,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:06,790 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] [2022-01-11 06:08:06,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 06:08:06,791 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)] === [2022-01-11 06:08:06,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:06,791 INFO L85 PathProgramCache]: Analyzing trace with hash -112222230, now seen corresponding path program 1 times [2022-01-11 06:08:06,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:06,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122939586] [2022-01-11 06:08:06,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:06,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:06,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:06,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122939586] [2022-01-11 06:08:06,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122939586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:06,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:06,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:06,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28499924] [2022-01-11 06:08:06,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:06,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:06,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:06,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:06,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:06,949 INFO L87 Difference]: Start difference. First operand 892 states and 1129 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) [2022-01-11 06:08:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:07,135 INFO L93 Difference]: Finished difference Result 1989 states and 2559 transitions. [2022-01-11 06:08:07,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:07,136 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 [2022-01-11 06:08:07,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:07,139 INFO L225 Difference]: With dead ends: 1989 [2022-01-11 06:08:07,139 INFO L226 Difference]: Without dead ends: 1404 [2022-01-11 06:08:07,140 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 [2022-01-11 06:08:07,141 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 553 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1177 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 [2022-01-11 06:08:07,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 1177 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:07,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2022-01-11 06:08:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1197. [2022-01-11 06:08:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1191 states have (on average 1.2628043660789252) internal successors, (1504), 1196 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1504 transitions. [2022-01-11 06:08:07,241 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1504 transitions. Word has length 81 [2022-01-11 06:08:07,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:07,241 INFO L470 AbstractCegarLoop]: Abstraction has 1197 states and 1504 transitions. [2022-01-11 06:08:07,241 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) [2022-01-11 06:08:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1504 transitions. [2022-01-11 06:08:07,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 06:08:07,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:07,242 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] [2022-01-11 06:08:07,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 06:08:07,242 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)] === [2022-01-11 06:08:07,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:07,243 INFO L85 PathProgramCache]: Analyzing trace with hash -171540943, now seen corresponding path program 1 times [2022-01-11 06:08:07,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:07,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012238166] [2022-01-11 06:08:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:07,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:07,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:07,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012238166] [2022-01-11 06:08:07,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012238166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:07,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:07,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:07,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8446043] [2022-01-11 06:08:07,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:07,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:07,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:07,362 INFO L87 Difference]: Start difference. First operand 1197 states and 1504 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:07,631 INFO L93 Difference]: Finished difference Result 3074 states and 3978 transitions. [2022-01-11 06:08:07,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-11 06:08:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:07,637 INFO L225 Difference]: With dead ends: 3074 [2022-01-11 06:08:07,637 INFO L226 Difference]: Without dead ends: 2283 [2022-01-11 06:08:07,639 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 [2022-01-11 06:08:07,640 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 840 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:07,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [840 Valid, 1699 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2022-01-11 06:08:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1293. [2022-01-11 06:08:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1287 states have (on average 1.2564102564102564) internal successors, (1617), 1292 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1617 transitions. [2022-01-11 06:08:07,795 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1617 transitions. Word has length 82 [2022-01-11 06:08:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:07,796 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 1617 transitions. [2022-01-11 06:08:07,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1617 transitions. [2022-01-11 06:08:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 06:08:07,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:07,797 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] [2022-01-11 06:08:07,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 06:08:07,797 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)] === [2022-01-11 06:08:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:07,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1694094317, now seen corresponding path program 1 times [2022-01-11 06:08:07,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961456783] [2022-01-11 06:08:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:07,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:07,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961456783] [2022-01-11 06:08:07,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961456783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:07,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:07,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:07,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617178451] [2022-01-11 06:08:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:07,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:07,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:07,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:07,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:07,867 INFO L87 Difference]: Start difference. First operand 1293 states and 1617 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:08,169 INFO L93 Difference]: Finished difference Result 3064 states and 3857 transitions. [2022-01-11 06:08:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-11 06:08:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:08,175 INFO L225 Difference]: With dead ends: 3064 [2022-01-11 06:08:08,175 INFO L226 Difference]: Without dead ends: 2113 [2022-01-11 06:08:08,176 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 [2022-01-11 06:08:08,177 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 237 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:08,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 694 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2022-01-11 06:08:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1295. [2022-01-11 06:08:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1289 states have (on average 1.2560124127230412) internal successors, (1619), 1294 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1619 transitions. [2022-01-11 06:08:08,345 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1619 transitions. Word has length 82 [2022-01-11 06:08:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:08,345 INFO L470 AbstractCegarLoop]: Abstraction has 1295 states and 1619 transitions. [2022-01-11 06:08:08,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1619 transitions. [2022-01-11 06:08:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:08,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:08,347 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] [2022-01-11 06:08:08,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 06:08:08,347 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:08,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:08,347 INFO L85 PathProgramCache]: Analyzing trace with hash -886575305, now seen corresponding path program 1 times [2022-01-11 06:08:08,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:08,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691181879] [2022-01-11 06:08:08,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:08,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:08,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:08,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691181879] [2022-01-11 06:08:08,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691181879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:08,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:08,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:08,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413264454] [2022-01-11 06:08:08,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:08,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:08,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:08,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:08,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:08,438 INFO L87 Difference]: Start difference. First operand 1295 states and 1619 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 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) [2022-01-11 06:08:08,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:08,612 INFO L93 Difference]: Finished difference Result 2254 states and 2885 transitions. [2022-01-11 06:08:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 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 [2022-01-11 06:08:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:08,616 INFO L225 Difference]: With dead ends: 2254 [2022-01-11 06:08:08,616 INFO L226 Difference]: Without dead ends: 1462 [2022-01-11 06:08:08,617 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 [2022-01-11 06:08:08,618 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 374 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:08,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 863 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2022-01-11 06:08:08,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1287. [2022-01-11 06:08:08,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1283 states have (on average 1.2517537022603273) internal successors, (1606), 1286 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1606 transitions. [2022-01-11 06:08:08,746 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1606 transitions. Word has length 83 [2022-01-11 06:08:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:08,746 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 1606 transitions. [2022-01-11 06:08:08,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 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) [2022-01-11 06:08:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1606 transitions. [2022-01-11 06:08:08,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:08,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:08,747 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] [2022-01-11 06:08:08,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 06:08:08,747 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:08,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash -389266762, now seen corresponding path program 1 times [2022-01-11 06:08:08,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:08,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624029050] [2022-01-11 06:08:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:08,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:09,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:09,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624029050] [2022-01-11 06:08:09,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624029050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:09,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:09,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:09,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298784834] [2022-01-11 06:08:09,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:09,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:09,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:09,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:09,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:09,129 INFO L87 Difference]: Start difference. First operand 1287 states and 1606 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) 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) [2022-01-11 06:08:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:10,454 INFO L93 Difference]: Finished difference Result 2938 states and 3680 transitions. [2022-01-11 06:08:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) 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 [2022-01-11 06:08:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:10,460 INFO L225 Difference]: With dead ends: 2938 [2022-01-11 06:08:10,460 INFO L226 Difference]: Without dead ends: 1729 [2022-01-11 06:08:10,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 06:08:10,461 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1176 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:10,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 1453 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 06:08:10,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-01-11 06:08:10,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1154. [2022-01-11 06:08:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1150 states have (on average 1.2591304347826087) internal successors, (1448), 1153 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1448 transitions. [2022-01-11 06:08:10,635 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1448 transitions. Word has length 83 [2022-01-11 06:08:10,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:10,635 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 1448 transitions. [2022-01-11 06:08:10,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) 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) [2022-01-11 06:08:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1448 transitions. [2022-01-11 06:08:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 06:08:10,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:10,636 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] [2022-01-11 06:08:10,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 06:08:10,636 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)] === [2022-01-11 06:08:10,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1721500499, now seen corresponding path program 1 times [2022-01-11 06:08:10,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:10,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914405297] [2022-01-11 06:08:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:10,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:10,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:10,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:10,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914405297] [2022-01-11 06:08:10,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914405297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:10,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:10,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:10,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543551461] [2022-01-11 06:08:10,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:10,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 06:08:10,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:10,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 06:08:10,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-11 06:08:10,883 INFO L87 Difference]: Start difference. First operand 1154 states and 1448 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) 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) [2022-01-11 06:08:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:11,677 INFO L93 Difference]: Finished difference Result 2771 states and 3514 transitions. [2022-01-11 06:08:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 06:08:11,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) 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 [2022-01-11 06:08:11,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:11,682 INFO L225 Difference]: With dead ends: 2771 [2022-01-11 06:08:11,682 INFO L226 Difference]: Without dead ends: 1693 [2022-01-11 06:08:11,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-01-11 06:08:11,683 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 947 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:11,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1695 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 06:08:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2022-01-11 06:08:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1013. [2022-01-11 06:08:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1009 states have (on average 1.265609514370664) internal successors, (1277), 1012 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1277 transitions. [2022-01-11 06:08:11,849 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1277 transitions. Word has length 83 [2022-01-11 06:08:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:11,850 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1277 transitions. [2022-01-11 06:08:11,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) 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) [2022-01-11 06:08:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1277 transitions. [2022-01-11 06:08:11,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:08:11,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:11,851 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] [2022-01-11 06:08:11,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 06:08:11,851 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)] === [2022-01-11 06:08:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1841985068, now seen corresponding path program 1 times [2022-01-11 06:08:11,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:11,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697254550] [2022-01-11 06:08:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:11,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:11,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:11,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697254550] [2022-01-11 06:08:11,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697254550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:11,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:11,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:08:11,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332240596] [2022-01-11 06:08:11,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:11,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:08:11,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:08:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:08:11,965 INFO L87 Difference]: Start difference. First operand 1013 states and 1277 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2022-01-11 06:08:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:12,353 INFO L93 Difference]: Finished difference Result 2415 states and 3065 transitions. [2022-01-11 06:08:12,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:08:12,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 [2022-01-11 06:08:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:12,358 INFO L225 Difference]: With dead ends: 2415 [2022-01-11 06:08:12,358 INFO L226 Difference]: Without dead ends: 1535 [2022-01-11 06:08:12,359 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 [2022-01-11 06:08:12,360 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 225 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:12,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 633 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-01-11 06:08:12,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1019. [2022-01-11 06:08:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1015 states have (on average 1.264039408866995) internal successors, (1283), 1018 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1283 transitions. [2022-01-11 06:08:12,550 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1283 transitions. Word has length 84 [2022-01-11 06:08:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:12,550 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1283 transitions. [2022-01-11 06:08:12,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2022-01-11 06:08:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1283 transitions. [2022-01-11 06:08:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 06:08:12,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:12,551 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] [2022-01-11 06:08:12,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 06:08:12,552 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)] === [2022-01-11 06:08:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash 148616370, now seen corresponding path program 1 times [2022-01-11 06:08:12,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:12,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775487715] [2022-01-11 06:08:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:12,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:12,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:12,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775487715] [2022-01-11 06:08:12,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775487715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:12,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:12,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 06:08:12,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464082384] [2022-01-11 06:08:12,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:12,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 06:08:12,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 06:08:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 06:08:12,890 INFO L87 Difference]: Start difference. First operand 1019 states and 1283 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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) [2022-01-11 06:08:14,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:14,501 INFO L93 Difference]: Finished difference Result 2989 states and 3797 transitions. [2022-01-11 06:08:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 06:08:14,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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 [2022-01-11 06:08:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:14,512 INFO L225 Difference]: With dead ends: 2989 [2022-01-11 06:08:14,512 INFO L226 Difference]: Without dead ends: 2101 [2022-01-11 06:08:14,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-01-11 06:08:14,514 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1773 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:14,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1773 Valid, 1753 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 06:08:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2022-01-11 06:08:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1017. [2022-01-11 06:08:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1013 states have (on average 1.2586377097729515) internal successors, (1275), 1016 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1275 transitions. [2022-01-11 06:08:14,783 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1275 transitions. Word has length 84 [2022-01-11 06:08:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:14,783 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1275 transitions. [2022-01-11 06:08:14,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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) [2022-01-11 06:08:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1275 transitions. [2022-01-11 06:08:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-11 06:08:14,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:14,784 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] [2022-01-11 06:08:14,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 06:08:14,784 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)] === [2022-01-11 06:08:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash 314870558, now seen corresponding path program 1 times [2022-01-11 06:08:14,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:14,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710805111] [2022-01-11 06:08:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:14,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:15,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:15,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710805111] [2022-01-11 06:08:15,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710805111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:15,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:15,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:15,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248959530] [2022-01-11 06:08:15,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:15,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:15,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:15,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:15,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:15,012 INFO L87 Difference]: Start difference. First operand 1017 states and 1275 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) 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) [2022-01-11 06:08:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:15,887 INFO L93 Difference]: Finished difference Result 2323 states and 2947 transitions. [2022-01-11 06:08:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 06:08:15,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) 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 [2022-01-11 06:08:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:15,890 INFO L225 Difference]: With dead ends: 2323 [2022-01-11 06:08:15,890 INFO L226 Difference]: Without dead ends: 1390 [2022-01-11 06:08:15,892 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 [2022-01-11 06:08:15,892 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 821 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:15,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [821 Valid, 897 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 06:08:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-01-11 06:08:16,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 964. [2022-01-11 06:08:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 960 states have (on average 1.2583333333333333) internal successors, (1208), 963 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1208 transitions. [2022-01-11 06:08:16,137 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1208 transitions. Word has length 85 [2022-01-11 06:08:16,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:16,137 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1208 transitions. [2022-01-11 06:08:16,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) 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) [2022-01-11 06:08:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1208 transitions. [2022-01-11 06:08:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 06:08:16,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:16,138 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] [2022-01-11 06:08:16,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 06:08:16,138 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)] === [2022-01-11 06:08:16,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:16,139 INFO L85 PathProgramCache]: Analyzing trace with hash 294045413, now seen corresponding path program 1 times [2022-01-11 06:08:16,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:16,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392448247] [2022-01-11 06:08:16,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:16,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:16,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:16,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392448247] [2022-01-11 06:08:16,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392448247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:16,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:16,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:16,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445005358] [2022-01-11 06:08:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:16,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:16,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:16,218 INFO L87 Difference]: Start difference. First operand 964 states and 1208 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-01-11 06:08:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:16,979 INFO L93 Difference]: Finished difference Result 3249 states and 4224 transitions. [2022-01-11 06:08:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:16,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 [2022-01-11 06:08:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:16,983 INFO L225 Difference]: With dead ends: 3249 [2022-01-11 06:08:16,983 INFO L226 Difference]: Without dead ends: 2451 [2022-01-11 06:08:16,984 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 [2022-01-11 06:08:16,985 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 777 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:16,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 2480 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2022-01-11 06:08:17,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 968. [2022-01-11 06:08:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 964 states have (on average 1.258298755186722) internal successors, (1213), 967 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1213 transitions. [2022-01-11 06:08:17,225 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1213 transitions. Word has length 87 [2022-01-11 06:08:17,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:17,226 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1213 transitions. [2022-01-11 06:08:17,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-01-11 06:08:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1213 transitions. [2022-01-11 06:08:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-11 06:08:17,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:17,226 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] [2022-01-11 06:08:17,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 06:08:17,227 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)] === [2022-01-11 06:08:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:17,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1936258217, now seen corresponding path program 1 times [2022-01-11 06:08:17,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:17,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465981322] [2022-01-11 06:08:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:17,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:17,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:17,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465981322] [2022-01-11 06:08:17,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465981322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:17,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:17,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:17,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953793838] [2022-01-11 06:08:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:17,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:17,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:17,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:17,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:17,304 INFO L87 Difference]: Start difference. First operand 968 states and 1213 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-01-11 06:08:17,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:17,867 INFO L93 Difference]: Finished difference Result 2579 states and 3341 transitions. [2022-01-11 06:08:17,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 06:08:17,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 [2022-01-11 06:08:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:17,870 INFO L225 Difference]: With dead ends: 2579 [2022-01-11 06:08:17,870 INFO L226 Difference]: Without dead ends: 1781 [2022-01-11 06:08:17,871 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 [2022-01-11 06:08:17,871 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 636 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:17,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 1539 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-01-11 06:08:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 968. [2022-01-11 06:08:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 964 states have (on average 1.2572614107883817) internal successors, (1212), 967 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1212 transitions. [2022-01-11 06:08:18,158 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1212 transitions. Word has length 87 [2022-01-11 06:08:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:18,158 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1212 transitions. [2022-01-11 06:08:18,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2022-01-11 06:08:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1212 transitions. [2022-01-11 06:08:18,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-11 06:08:18,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:18,159 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] [2022-01-11 06:08:18,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 06:08:18,159 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:18,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash 834463479, now seen corresponding path program 1 times [2022-01-11 06:08:18,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:18,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272058527] [2022-01-11 06:08:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:18,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:18,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:18,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272058527] [2022-01-11 06:08:18,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272058527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:18,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:18,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:08:18,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727794904] [2022-01-11 06:08:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:18,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:08:18,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:08:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:08:18,242 INFO L87 Difference]: Start difference. First operand 968 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:18,644 INFO L93 Difference]: Finished difference Result 1291 states and 1668 transitions. [2022-01-11 06:08:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:18,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-11 06:08:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:18,646 INFO L225 Difference]: With dead ends: 1291 [2022-01-11 06:08:18,646 INFO L226 Difference]: Without dead ends: 1289 [2022-01-11 06:08:18,647 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 [2022-01-11 06:08:18,647 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 414 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 976 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 [2022-01-11 06:08:18,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 976 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-01-11 06:08:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 970. [2022-01-11 06:08:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 966 states have (on average 1.2567287784679089) internal successors, (1214), 969 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1214 transitions. [2022-01-11 06:08:18,917 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1214 transitions. Word has length 91 [2022-01-11 06:08:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:18,917 INFO L470 AbstractCegarLoop]: Abstraction has 970 states and 1214 transitions. [2022-01-11 06:08:18,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:18,917 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1214 transitions. [2022-01-11 06:08:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-11 06:08:18,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:18,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:08:18,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 06:08:18,918 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:18,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 71200181, now seen corresponding path program 1 times [2022-01-11 06:08:18,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:18,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277575405] [2022-01-11 06:08:18,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:18,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:19,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:19,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:19,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277575405] [2022-01-11 06:08:19,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277575405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:19,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:19,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:19,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278937020] [2022-01-11 06:08:19,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:19,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:19,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:19,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:19,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:19,009 INFO L87 Difference]: Start difference. First operand 970 states and 1214 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:19,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:19,415 INFO L93 Difference]: Finished difference Result 2125 states and 2721 transitions. [2022-01-11 06:08:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:08:19,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-11 06:08:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:19,418 INFO L225 Difference]: With dead ends: 2125 [2022-01-11 06:08:19,418 INFO L226 Difference]: Without dead ends: 1325 [2022-01-11 06:08:19,419 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 [2022-01-11 06:08:19,419 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 523 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 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 [2022-01-11 06:08:19,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 754 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2022-01-11 06:08:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 966. [2022-01-11 06:08:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 963 states have (on average 1.2533748701973002) internal successors, (1207), 965 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1207 transitions. [2022-01-11 06:08:19,680 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1207 transitions. Word has length 92 [2022-01-11 06:08:19,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:19,681 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1207 transitions. [2022-01-11 06:08:19,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:19,681 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1207 transitions. [2022-01-11 06:08:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-11 06:08:19,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:19,682 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] [2022-01-11 06:08:19,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 06:08:19,682 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:19,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2074605835, now seen corresponding path program 1 times [2022-01-11 06:08:19,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:19,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223780214] [2022-01-11 06:08:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:19,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:19,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:19,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223780214] [2022-01-11 06:08:19,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223780214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:19,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:19,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:19,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938218288] [2022-01-11 06:08:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:19,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:19,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:19,760 INFO L87 Difference]: Start difference. First operand 966 states and 1207 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:20,162 INFO L93 Difference]: Finished difference Result 2202 states and 2811 transitions. [2022-01-11 06:08:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-11 06:08:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:20,165 INFO L225 Difference]: With dead ends: 2202 [2022-01-11 06:08:20,165 INFO L226 Difference]: Without dead ends: 1406 [2022-01-11 06:08:20,166 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 [2022-01-11 06:08:20,166 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 341 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 906 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 [2022-01-11 06:08:20,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 906 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2022-01-11 06:08:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 962. [2022-01-11 06:08:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 960 states have (on average 1.25) internal successors, (1200), 961 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1200 transitions. [2022-01-11 06:08:20,428 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1200 transitions. Word has length 97 [2022-01-11 06:08:20,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:20,428 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1200 transitions. [2022-01-11 06:08:20,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1200 transitions. [2022-01-11 06:08:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 06:08:20,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:20,429 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] [2022-01-11 06:08:20,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 06:08:20,429 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1104687763, now seen corresponding path program 1 times [2022-01-11 06:08:20,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:20,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788125492] [2022-01-11 06:08:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:20,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:20,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:20,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788125492] [2022-01-11 06:08:20,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788125492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:20,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:20,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:08:20,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509597499] [2022-01-11 06:08:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:20,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:08:20,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:08:20,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:08:20,497 INFO L87 Difference]: Start difference. First operand 962 states and 1200 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:20,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:20,961 INFO L93 Difference]: Finished difference Result 2362 states and 2986 transitions. [2022-01-11 06:08:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:08:20,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-11 06:08:20,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:20,964 INFO L225 Difference]: With dead ends: 2362 [2022-01-11 06:08:20,964 INFO L226 Difference]: Without dead ends: 1570 [2022-01-11 06:08:20,965 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 [2022-01-11 06:08:20,966 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 362 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:08:20,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 979 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:08:20,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-01-11 06:08:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 958. [2022-01-11 06:08:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 1.2466039707419019) internal successors, (1193), 957 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1193 transitions. [2022-01-11 06:08:21,249 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1193 transitions. Word has length 105 [2022-01-11 06:08:21,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:21,249 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 1193 transitions. [2022-01-11 06:08:21,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:21,249 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1193 transitions. [2022-01-11 06:08:21,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-11 06:08:21,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:21,250 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] [2022-01-11 06:08:21,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 06:08:21,251 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)] === [2022-01-11 06:08:21,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:21,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1274816343, now seen corresponding path program 1 times [2022-01-11 06:08:21,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:21,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827028929] [2022-01-11 06:08:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:21,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:21,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:21,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827028929] [2022-01-11 06:08:21,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827028929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:08:21,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:08:21,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 06:08:21,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525968219] [2022-01-11 06:08:21,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:08:21,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 06:08:21,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:21,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 06:08:21,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:08:21,479 INFO L87 Difference]: Start difference. First operand 958 states and 1193 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:22,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:08:22,539 INFO L93 Difference]: Finished difference Result 2300 states and 2991 transitions. [2022-01-11 06:08:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 06:08:22,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-11 06:08:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:08:22,541 INFO L225 Difference]: With dead ends: 2300 [2022-01-11 06:08:22,541 INFO L226 Difference]: Without dead ends: 1512 [2022-01-11 06:08:22,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-11 06:08:22,542 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 466 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1373 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 [2022-01-11 06:08:22,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 1373 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:08:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-01-11 06:08:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 964. [2022-01-11 06:08:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 963 states have (on average 1.245067497403946) internal successors, (1199), 963 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1199 transitions. [2022-01-11 06:08:22,812 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1199 transitions. Word has length 117 [2022-01-11 06:08:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:08:22,812 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1199 transitions. [2022-01-11 06:08:22,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1199 transitions. [2022-01-11 06:08:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-11 06:08:22,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:08:22,814 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] [2022-01-11 06:08:22,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 06:08:22,814 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2022-01-11 06:08:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:08:22,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1719289573, now seen corresponding path program 1 times [2022-01-11 06:08:22,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:08:22,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569372960] [2022-01-11 06:08:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:22,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:08:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:25,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:08:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569372960] [2022-01-11 06:08:25,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569372960] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 06:08:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985917862] [2022-01-11 06:08:25,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:08:25,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 06:08:25,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:08:25,477 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) [2022-01-11 06:08:25,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 06:08:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:08:25,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-11 06:08:25,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 06:08:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:26,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 06:08:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:08:26,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985917862] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 06:08:26,609 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 06:08:26,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 7] total 22 [2022-01-11 06:08:26,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258005302] [2022-01-11 06:08:26,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 06:08:26,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-11 06:08:26,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:08:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-11 06:08:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=449, Unknown=1, NotChecked=0, Total=506 [2022-01-11 06:08:26,612 INFO L87 Difference]: Start difference. First operand 964 states and 1199 transitions. Second operand has 23 states, 23 states have (on average 16.782608695652176) internal successors, (386), 22 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:08:32,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-11 06:09:00,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []