/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_NONE.epf -i ../../../trunk/examples/svcomp/systemc/kundu.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:16:03,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:16:03,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:16:03,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:16:03,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:16:03,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:16:03,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:16:03,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:16:03,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:16:03,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:16:03,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:16:03,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:16:03,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:16:03,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:16:03,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:16:03,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:16:03,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:16:03,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:16:03,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:16:03,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:16:03,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:16:03,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:16:03,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:16:03,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:16:03,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:16:03,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:16:03,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:16:03,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:16:03,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:16:03,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:16:03,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:16:03,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:16:03,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:16:03,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:16:03,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:16:03,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:16:03,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:16:03,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:16:03,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:16:03,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:16:03,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:16:03,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:16:03,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:16:03,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:16:03,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:16:03,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:16:03,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:16:03,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:16:03,553 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:16:03,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:16:03,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:16:03,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:16:03,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:16:03,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:16:03,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:16:03,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:16:03,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:16:03,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:16:03,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:16:03,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:16:03,557 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:16:03,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:16:03,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:16:03,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:16:03,558 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:16:03,558 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:16:03,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:16:03,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:16:03,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:16:03,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:16:03,772 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:16:03,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/kundu.cil.c [2022-01-11 00:16:03,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cefcc11e/d23d9e282b4040bab8275293349294e3/FLAG5c6afd380 [2022-01-11 00:16:04,165 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:16:04,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/kundu.cil.c [2022-01-11 00:16:04,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cefcc11e/d23d9e282b4040bab8275293349294e3/FLAG5c6afd380 [2022-01-11 00:16:04,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cefcc11e/d23d9e282b4040bab8275293349294e3 [2022-01-11 00:16:04,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:16:04,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:16:04,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:16:04,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:16:04,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:16:04,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54885ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04, skipping insertion in model container [2022-01-11 00:16:04,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:16:04,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:16:04,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/kundu.cil.c[635,648] [2022-01-11 00:16:04,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:16:04,426 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:16:04,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/kundu.cil.c[635,648] [2022-01-11 00:16:04,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:16:04,484 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:16:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04 WrapperNode [2022-01-11 00:16:04,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:16:04,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:16:04,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:16:04,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:16:04,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,548 INFO L137 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 35, calls inlined = 45, statements flattened = 534 [2022-01-11 00:16:04,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:16:04,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:16:04,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:16:04,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:16:04,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:16:04,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:16:04,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:16:04,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:16:04,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (1/1) ... [2022-01-11 00:16:04,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:16:04,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:16:04,628 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 00:16:04,646 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 00:16:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:16:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:16:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:16:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:16:04,744 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:16:04,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:16:05,089 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:16:05,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:16:05,097 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-11 00:16:05,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:05 BoogieIcfgContainer [2022-01-11 00:16:05,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:16:05,099 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:16:05,100 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:16:05,101 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:16:05,103 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:05" (1/1) ... [2022-01-11 00:16:05,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:16:05 BasicIcfg [2022-01-11 00:16:05,249 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:16:05,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:16:05,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:16:05,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:16:05,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:16:04" (1/4) ... [2022-01-11 00:16:05,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450082e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:16:05, skipping insertion in model container [2022-01-11 00:16:05,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:04" (2/4) ... [2022-01-11 00:16:05,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450082e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:16:05, skipping insertion in model container [2022-01-11 00:16:05,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:05" (3/4) ... [2022-01-11 00:16:05,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450082e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:16:05, skipping insertion in model container [2022-01-11 00:16:05,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:16:05" (4/4) ... [2022-01-11 00:16:05,254 INFO L111 eAbstractionObserver]: Analyzing ICFG kundu.cil.cTransformedIcfg [2022-01-11 00:16:05,257 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:16:05,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-11 00:16:05,294 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:16:05,298 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 00:16:05,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-11 00:16:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 190 states have (on average 1.5263157894736843) internal successors, (290), 194 states have internal predecessors, (290), 0 states have call successors, (0), 0 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 00:16:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 00:16:05,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:05,317 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] [2022-01-11 00:16:05,318 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:05,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:05,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1568015318, now seen corresponding path program 1 times [2022-01-11 00:16:05,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:05,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643950229] [2022-01-11 00:16:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:05,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:05,484 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 00:16:05,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:05,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643950229] [2022-01-11 00:16:05,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643950229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:05,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:05,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:05,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079657426] [2022-01-11 00:16:05,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:05,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:05,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:05,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:05,515 INFO L87 Difference]: Start difference. First operand has 195 states, 190 states have (on average 1.5263157894736843) internal successors, (290), 194 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:05,605 INFO L93 Difference]: Finished difference Result 529 states and 791 transitions. [2022-01-11 00:16:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:05,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-11 00:16:05,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:05,618 INFO L225 Difference]: With dead ends: 529 [2022-01-11 00:16:05,618 INFO L226 Difference]: Without dead ends: 336 [2022-01-11 00:16:05,621 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 00:16:05,623 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 250 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:05,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 484 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-01-11 00:16:05,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 324. [2022-01-11 00:16:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 320 states have (on average 1.46875) internal successors, (470), 323 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 00:16:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 470 transitions. [2022-01-11 00:16:05,690 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 470 transitions. Word has length 44 [2022-01-11 00:16:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:05,690 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 470 transitions. [2022-01-11 00:16:05,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:05,691 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 470 transitions. [2022-01-11 00:16:05,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 00:16:05,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:05,692 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] [2022-01-11 00:16:05,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:16:05,692 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:05,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2086517719, now seen corresponding path program 1 times [2022-01-11 00:16:05,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:05,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927107475] [2022-01-11 00:16:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:05,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:05,797 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 00:16:05,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:05,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927107475] [2022-01-11 00:16:05,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927107475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:05,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:05,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:05,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013451107] [2022-01-11 00:16:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:05,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:05,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:05,800 INFO L87 Difference]: Start difference. First operand 324 states and 470 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:05,855 INFO L93 Difference]: Finished difference Result 915 states and 1327 transitions. [2022-01-11 00:16:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-11 00:16:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:05,857 INFO L225 Difference]: With dead ends: 915 [2022-01-11 00:16:05,858 INFO L226 Difference]: Without dead ends: 607 [2022-01-11 00:16:05,859 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 00:16:05,860 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 237 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:05,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 473 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-01-11 00:16:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 567. [2022-01-11 00:16:05,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 563 states have (on average 1.458259325044405) internal successors, (821), 566 states have internal predecessors, (821), 0 states have call successors, (0), 0 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 00:16:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 821 transitions. [2022-01-11 00:16:05,892 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 821 transitions. Word has length 44 [2022-01-11 00:16:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:05,893 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 821 transitions. [2022-01-11 00:16:05,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 821 transitions. [2022-01-11 00:16:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 00:16:05,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:05,899 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] [2022-01-11 00:16:05,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:16:05,899 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1902889112, now seen corresponding path program 1 times [2022-01-11 00:16:05,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:05,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94257452] [2022-01-11 00:16:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:05,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:05,966 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 00:16:05,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:05,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94257452] [2022-01-11 00:16:05,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94257452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:05,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:05,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:05,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384559154] [2022-01-11 00:16:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:05,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:05,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:05,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:05,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:05,969 INFO L87 Difference]: Start difference. First operand 567 states and 821 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:06,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:06,040 INFO L93 Difference]: Finished difference Result 1618 states and 2334 transitions. [2022-01-11 00:16:06,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:06,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-11 00:16:06,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:06,043 INFO L225 Difference]: With dead ends: 1618 [2022-01-11 00:16:06,044 INFO L226 Difference]: Without dead ends: 1073 [2022-01-11 00:16:06,044 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 00:16:06,045 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 213 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:06,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 454 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-01-11 00:16:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1033. [2022-01-11 00:16:06,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1029 states have (on average 1.4217687074829932) internal successors, (1463), 1032 states have internal predecessors, (1463), 0 states have call successors, (0), 0 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 00:16:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1463 transitions. [2022-01-11 00:16:06,071 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1463 transitions. Word has length 44 [2022-01-11 00:16:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:06,079 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1463 transitions. [2022-01-11 00:16:06,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 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 00:16:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1463 transitions. [2022-01-11 00:16:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 00:16:06,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:06,080 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] [2022-01-11 00:16:06,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:16:06,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1644846860, now seen corresponding path program 1 times [2022-01-11 00:16:06,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:06,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368624875] [2022-01-11 00:16:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:06,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:06,179 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 00:16:06,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:06,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368624875] [2022-01-11 00:16:06,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368624875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:06,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:06,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:16:06,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742344856] [2022-01-11 00:16:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:06,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:16:06,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:06,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:16:06,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:16:06,181 INFO L87 Difference]: Start difference. First operand 1033 states and 1463 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:06,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:06,319 INFO L93 Difference]: Finished difference Result 3308 states and 4728 transitions. [2022-01-11 00:16:06,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:16:06,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 00:16:06,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:06,327 INFO L225 Difference]: With dead ends: 3308 [2022-01-11 00:16:06,327 INFO L226 Difference]: Without dead ends: 2289 [2022-01-11 00:16:06,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:16:06,335 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 851 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:06,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 1308 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:06,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-01-11 00:16:06,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1069. [2022-01-11 00:16:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1065 states have (on average 1.395305164319249) internal successors, (1486), 1068 states have internal predecessors, (1486), 0 states have call successors, (0), 0 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 00:16:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1486 transitions. [2022-01-11 00:16:06,383 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1486 transitions. Word has length 45 [2022-01-11 00:16:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:06,384 INFO L470 AbstractCegarLoop]: Abstraction has 1069 states and 1486 transitions. [2022-01-11 00:16:06,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1486 transitions. [2022-01-11 00:16:06,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 00:16:06,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:06,386 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] [2022-01-11 00:16:06,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:16:06,386 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:06,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:06,387 INFO L85 PathProgramCache]: Analyzing trace with hash 640016595, now seen corresponding path program 1 times [2022-01-11 00:16:06,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:06,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836262482] [2022-01-11 00:16:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:06,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:06,446 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 00:16:06,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:06,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836262482] [2022-01-11 00:16:06,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836262482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:06,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:06,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:16:06,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014177503] [2022-01-11 00:16:06,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:06,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:16:06,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:06,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:16:06,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:16:06,449 INFO L87 Difference]: Start difference. First operand 1069 states and 1486 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:06,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:06,645 INFO L93 Difference]: Finished difference Result 3434 states and 4826 transitions. [2022-01-11 00:16:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:16:06,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 00:16:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:06,655 INFO L225 Difference]: With dead ends: 3434 [2022-01-11 00:16:06,655 INFO L226 Difference]: Without dead ends: 2385 [2022-01-11 00:16:06,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:16:06,659 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 770 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:06,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 1271 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2022-01-11 00:16:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1105. [2022-01-11 00:16:06,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1101 states have (on average 1.374205267938238) internal successors, (1513), 1104 states have internal predecessors, (1513), 0 states have call successors, (0), 0 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 00:16:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1513 transitions. [2022-01-11 00:16:06,729 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1513 transitions. Word has length 45 [2022-01-11 00:16:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:06,729 INFO L470 AbstractCegarLoop]: Abstraction has 1105 states and 1513 transitions. [2022-01-11 00:16:06,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1513 transitions. [2022-01-11 00:16:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 00:16:06,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:06,737 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] [2022-01-11 00:16:06,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:16:06,737 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:06,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:06,738 INFO L85 PathProgramCache]: Analyzing trace with hash 671036402, now seen corresponding path program 1 times [2022-01-11 00:16:06,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:06,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063501827] [2022-01-11 00:16:06,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:06,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:06,795 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 00:16:06,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:06,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063501827] [2022-01-11 00:16:06,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063501827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:06,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:06,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:16:06,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490549052] [2022-01-11 00:16:06,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:06,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:16:06,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:16:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:16:06,796 INFO L87 Difference]: Start difference. First operand 1105 states and 1513 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:06,981 INFO L93 Difference]: Finished difference Result 3433 states and 4763 transitions. [2022-01-11 00:16:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:16:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 00:16:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:06,988 INFO L225 Difference]: With dead ends: 3433 [2022-01-11 00:16:06,988 INFO L226 Difference]: Without dead ends: 2355 [2022-01-11 00:16:06,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:16:06,997 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 638 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:06,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 1204 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:06,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2022-01-11 00:16:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 1135. [2022-01-11 00:16:07,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1131 states have (on average 1.354553492484527) internal successors, (1532), 1134 states have internal predecessors, (1532), 0 states have call successors, (0), 0 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 00:16:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1532 transitions. [2022-01-11 00:16:07,067 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1532 transitions. Word has length 45 [2022-01-11 00:16:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:07,067 INFO L470 AbstractCegarLoop]: Abstraction has 1135 states and 1532 transitions. [2022-01-11 00:16:07,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:07,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1532 transitions. [2022-01-11 00:16:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 00:16:07,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:07,067 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] [2022-01-11 00:16:07,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:16:07,068 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:07,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:07,068 INFO L85 PathProgramCache]: Analyzing trace with hash -173435469, now seen corresponding path program 1 times [2022-01-11 00:16:07,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:07,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011541182] [2022-01-11 00:16:07,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:07,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:07,126 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 00:16:07,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:07,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011541182] [2022-01-11 00:16:07,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011541182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:07,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:07,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:16:07,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508100052] [2022-01-11 00:16:07,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:07,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:16:07,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:07,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:16:07,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:16:07,128 INFO L87 Difference]: Start difference. First operand 1135 states and 1532 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:07,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:07,429 INFO L93 Difference]: Finished difference Result 5095 states and 6910 transitions. [2022-01-11 00:16:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:16:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 00:16:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:07,440 INFO L225 Difference]: With dead ends: 5095 [2022-01-11 00:16:07,440 INFO L226 Difference]: Without dead ends: 3989 [2022-01-11 00:16:07,442 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 00:16:07,443 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 409 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:07,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1007 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:07,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-01-11 00:16:07,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 2019. [2022-01-11 00:16:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2015 states have (on average 1.3558312655086848) internal successors, (2732), 2018 states have internal predecessors, (2732), 0 states have call successors, (0), 0 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 00:16:07,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2732 transitions. [2022-01-11 00:16:07,571 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2732 transitions. Word has length 45 [2022-01-11 00:16:07,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:07,571 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2732 transitions. [2022-01-11 00:16:07,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 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 00:16:07,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2732 transitions. [2022-01-11 00:16:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 00:16:07,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:07,572 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] [2022-01-11 00:16:07,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:16:07,572 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:07,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1010438079, now seen corresponding path program 1 times [2022-01-11 00:16:07,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:07,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869047129] [2022-01-11 00:16:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:07,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:07,689 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 00:16:07,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:07,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869047129] [2022-01-11 00:16:07,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869047129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:07,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:07,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:16:07,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580441395] [2022-01-11 00:16:07,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:07,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:16:07,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:07,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:16:07,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:07,691 INFO L87 Difference]: Start difference. First operand 2019 states and 2732 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:08,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:08,136 INFO L93 Difference]: Finished difference Result 5493 states and 7406 transitions. [2022-01-11 00:16:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:16:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 00:16:08,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:08,151 INFO L225 Difference]: With dead ends: 5493 [2022-01-11 00:16:08,151 INFO L226 Difference]: Without dead ends: 5489 [2022-01-11 00:16:08,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-11 00:16:08,152 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 1036 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:08,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 2435 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2022-01-11 00:16:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 3085. [2022-01-11 00:16:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 3081 states have (on average 1.3528075300227198) internal successors, (4168), 3084 states have internal predecessors, (4168), 0 states have call successors, (0), 0 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 00:16:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4168 transitions. [2022-01-11 00:16:08,382 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4168 transitions. Word has length 53 [2022-01-11 00:16:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:08,382 INFO L470 AbstractCegarLoop]: Abstraction has 3085 states and 4168 transitions. [2022-01-11 00:16:08,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4168 transitions. [2022-01-11 00:16:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 00:16:08,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:08,383 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] [2022-01-11 00:16:08,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:16:08,383 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:08,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2011862746, now seen corresponding path program 1 times [2022-01-11 00:16:08,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:08,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319547948] [2022-01-11 00:16:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:08,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:08,432 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 00:16:08,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:08,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319547948] [2022-01-11 00:16:08,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319547948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:08,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:08,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:08,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960231580] [2022-01-11 00:16:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:08,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:08,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:08,434 INFO L87 Difference]: Start difference. First operand 3085 states and 4168 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 00:16:08,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:08,812 INFO L93 Difference]: Finished difference Result 8710 states and 11723 transitions. [2022-01-11 00:16:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:08,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 00:16:08,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:08,827 INFO L225 Difference]: With dead ends: 8710 [2022-01-11 00:16:08,827 INFO L226 Difference]: Without dead ends: 5654 [2022-01-11 00:16:08,830 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 00:16:08,831 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 164 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:08,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 563 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:08,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2022-01-11 00:16:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 5548. [2022-01-11 00:16:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 5544 states have (on average 1.329004329004329) internal successors, (7368), 5547 states have internal predecessors, (7368), 0 states have call successors, (0), 0 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 00:16:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7368 transitions. [2022-01-11 00:16:09,181 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7368 transitions. Word has length 54 [2022-01-11 00:16:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:09,181 INFO L470 AbstractCegarLoop]: Abstraction has 5548 states and 7368 transitions. [2022-01-11 00:16:09,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 00:16:09,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7368 transitions. [2022-01-11 00:16:09,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 00:16:09,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:09,182 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] [2022-01-11 00:16:09,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:16:09,182 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:09,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2019622105, now seen corresponding path program 1 times [2022-01-11 00:16:09,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795073339] [2022-01-11 00:16:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:09,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:09,208 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 00:16:09,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:09,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795073339] [2022-01-11 00:16:09,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795073339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:09,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:09,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:09,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547273497] [2022-01-11 00:16:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:09,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:09,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:09,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:09,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:09,209 INFO L87 Difference]: Start difference. First operand 5548 states and 7368 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 00:16:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:09,621 INFO L93 Difference]: Finished difference Result 11044 states and 14680 transitions. [2022-01-11 00:16:09,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:09,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 00:16:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:09,645 INFO L225 Difference]: With dead ends: 11044 [2022-01-11 00:16:09,645 INFO L226 Difference]: Without dead ends: 5525 [2022-01-11 00:16:09,651 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 00:16:09,652 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 250 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:09,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 254 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:09,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2022-01-11 00:16:09,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5525. [2022-01-11 00:16:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5521 states have (on average 1.3300126788625248) internal successors, (7343), 5524 states have internal predecessors, (7343), 0 states have call successors, (0), 0 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 00:16:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 7343 transitions. [2022-01-11 00:16:09,998 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 7343 transitions. Word has length 54 [2022-01-11 00:16:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:09,999 INFO L470 AbstractCegarLoop]: Abstraction has 5525 states and 7343 transitions. [2022-01-11 00:16:09,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 00:16:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 7343 transitions. [2022-01-11 00:16:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 00:16:09,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:10,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:16:10,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:16:10,000 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:10,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2009745949, now seen corresponding path program 1 times [2022-01-11 00:16:10,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:10,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474315199] [2022-01-11 00:16:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:10,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:10,085 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 00:16:10,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:10,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474315199] [2022-01-11 00:16:10,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474315199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:10,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:10,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:16:10,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641636422] [2022-01-11 00:16:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:10,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:16:10,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:10,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:16:10,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:10,088 INFO L87 Difference]: Start difference. First operand 5525 states and 7343 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 00:16:10,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:10,920 INFO L93 Difference]: Finished difference Result 16579 states and 22090 transitions. [2022-01-11 00:16:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:16:10,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 00:16:10,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:10,937 INFO L225 Difference]: With dead ends: 16579 [2022-01-11 00:16:10,937 INFO L226 Difference]: Without dead ends: 11083 [2022-01-11 00:16:10,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:10,945 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 836 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:10,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 1277 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11083 states. [2022-01-11 00:16:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11083 to 9103. [2022-01-11 00:16:11,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9103 states, 9099 states have (on average 1.3314649961534235) internal successors, (12115), 9102 states have internal predecessors, (12115), 0 states have call successors, (0), 0 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 00:16:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9103 states to 9103 states and 12115 transitions. [2022-01-11 00:16:11,567 INFO L78 Accepts]: Start accepts. Automaton has 9103 states and 12115 transitions. Word has length 55 [2022-01-11 00:16:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:11,567 INFO L470 AbstractCegarLoop]: Abstraction has 9103 states and 12115 transitions. [2022-01-11 00:16:11,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 00:16:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 9103 states and 12115 transitions. [2022-01-11 00:16:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 00:16:11,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:11,568 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] [2022-01-11 00:16:11,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 00:16:11,569 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -495599241, now seen corresponding path program 1 times [2022-01-11 00:16:11,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:11,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102889842] [2022-01-11 00:16:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:11,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:11,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:11,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102889842] [2022-01-11 00:16:11,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102889842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:11,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:11,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:16:11,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632910138] [2022-01-11 00:16:11,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:11,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:16:11,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:11,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:16:11,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:11,645 INFO L87 Difference]: Start difference. First operand 9103 states and 12115 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:12,680 INFO L93 Difference]: Finished difference Result 23783 states and 31626 transitions. [2022-01-11 00:16:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 00:16:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 00:16:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:12,706 INFO L225 Difference]: With dead ends: 23783 [2022-01-11 00:16:12,706 INFO L226 Difference]: Without dead ends: 14709 [2022-01-11 00:16:12,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-11 00:16:12,718 INFO L933 BasicCegarLoop]: 762 mSDtfsCounter, 1066 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:12,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 2196 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14709 states. [2022-01-11 00:16:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14709 to 9095. [2022-01-11 00:16:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9095 states, 9091 states have (on average 1.3299967000329997) internal successors, (12091), 9094 states have internal predecessors, (12091), 0 states have call successors, (0), 0 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 00:16:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9095 states to 9095 states and 12091 transitions. [2022-01-11 00:16:13,599 INFO L78 Accepts]: Start accepts. Automaton has 9095 states and 12091 transitions. Word has length 58 [2022-01-11 00:16:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:13,599 INFO L470 AbstractCegarLoop]: Abstraction has 9095 states and 12091 transitions. [2022-01-11 00:16:13,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 9095 states and 12091 transitions. [2022-01-11 00:16:13,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 00:16:13,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:13,601 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:13,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 00:16:13,601 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:13,601 INFO L85 PathProgramCache]: Analyzing trace with hash -548772280, now seen corresponding path program 1 times [2022-01-11 00:16:13,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:13,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770398651] [2022-01-11 00:16:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:13,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-11 00:16:13,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:13,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770398651] [2022-01-11 00:16:13,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770398651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:13,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:13,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:13,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003443222] [2022-01-11 00:16:13,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:13,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:13,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:13,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:13,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:13,635 INFO L87 Difference]: Start difference. First operand 9095 states and 12091 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:14,859 INFO L93 Difference]: Finished difference Result 26337 states and 34803 transitions. [2022-01-11 00:16:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-01-11 00:16:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:14,888 INFO L225 Difference]: With dead ends: 26337 [2022-01-11 00:16:14,888 INFO L226 Difference]: Without dead ends: 17271 [2022-01-11 00:16:14,899 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 00:16:14,900 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 185 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:14,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 506 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17271 states. [2022-01-11 00:16:16,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17271 to 17265. [2022-01-11 00:16:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17265 states, 17261 states have (on average 1.2988818724291755) internal successors, (22420), 17264 states have internal predecessors, (22420), 0 states have call successors, (0), 0 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 00:16:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17265 states to 17265 states and 22420 transitions. [2022-01-11 00:16:16,302 INFO L78 Accepts]: Start accepts. Automaton has 17265 states and 22420 transitions. Word has length 62 [2022-01-11 00:16:16,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:16,302 INFO L470 AbstractCegarLoop]: Abstraction has 17265 states and 22420 transitions. [2022-01-11 00:16:16,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 17265 states and 22420 transitions. [2022-01-11 00:16:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 00:16:16,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:16,305 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] [2022-01-11 00:16:16,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 00:16:16,305 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:16,305 INFO L85 PathProgramCache]: Analyzing trace with hash -483363326, now seen corresponding path program 1 times [2022-01-11 00:16:16,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:16,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671386641] [2022-01-11 00:16:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:16,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:16,357 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 00:16:16,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:16,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671386641] [2022-01-11 00:16:16,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671386641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:16,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:16,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:16:16,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281800131] [2022-01-11 00:16:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:16,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:16:16,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:16,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:16:16,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:16:16,359 INFO L87 Difference]: Start difference. First operand 17265 states and 22420 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:19,992 INFO L93 Difference]: Finished difference Result 61645 states and 80088 transitions. [2022-01-11 00:16:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:16:19,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 00:16:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:20,068 INFO L225 Difference]: With dead ends: 61645 [2022-01-11 00:16:20,069 INFO L226 Difference]: Without dead ends: 44433 [2022-01-11 00:16:20,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:16:20,093 INFO L933 BasicCegarLoop]: 947 mSDtfsCounter, 621 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:20,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 2492 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:20,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44433 states. [2022-01-11 00:16:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44433 to 24005. [2022-01-11 00:16:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24005 states, 24001 states have (on average 1.2981125786425565) internal successors, (31156), 24004 states have internal predecessors, (31156), 0 states have call successors, (0), 0 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 00:16:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24005 states to 24005 states and 31156 transitions. [2022-01-11 00:16:22,253 INFO L78 Accepts]: Start accepts. Automaton has 24005 states and 31156 transitions. Word has length 63 [2022-01-11 00:16:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 24005 states and 31156 transitions. [2022-01-11 00:16:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 24005 states and 31156 transitions. [2022-01-11 00:16:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:16:22,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:22,255 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:22,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 00:16:22,255 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:22,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:22,255 INFO L85 PathProgramCache]: Analyzing trace with hash 845567288, now seen corresponding path program 1 times [2022-01-11 00:16:22,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:22,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659702117] [2022-01-11 00:16:22,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:22,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:22,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:22,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659702117] [2022-01-11 00:16:22,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659702117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:22,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:22,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:22,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012858162] [2022-01-11 00:16:22,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:22,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:22,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:22,283 INFO L87 Difference]: Start difference. First operand 24005 states and 31156 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:25,888 INFO L93 Difference]: Finished difference Result 62603 states and 81246 transitions. [2022-01-11 00:16:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:25,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:16:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:25,949 INFO L225 Difference]: With dead ends: 62603 [2022-01-11 00:16:25,949 INFO L226 Difference]: Without dead ends: 38651 [2022-01-11 00:16:25,971 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 00:16:25,972 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 203 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:25,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 689 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:26,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38651 states. [2022-01-11 00:16:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38651 to 35607. [2022-01-11 00:16:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35607 states, 35603 states have (on average 1.2931494536977222) internal successors, (46040), 35606 states have internal predecessors, (46040), 0 states have call successors, (0), 0 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 00:16:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35607 states to 35607 states and 46040 transitions. [2022-01-11 00:16:28,989 INFO L78 Accepts]: Start accepts. Automaton has 35607 states and 46040 transitions. Word has length 64 [2022-01-11 00:16:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:28,989 INFO L470 AbstractCegarLoop]: Abstraction has 35607 states and 46040 transitions. [2022-01-11 00:16:28,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 35607 states and 46040 transitions. [2022-01-11 00:16:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:16:28,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:28,992 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] [2022-01-11 00:16:28,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 00:16:28,992 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash 537280817, now seen corresponding path program 1 times [2022-01-11 00:16:28,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:28,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233693848] [2022-01-11 00:16:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:28,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:29,105 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 00:16:29,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:29,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233693848] [2022-01-11 00:16:29,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233693848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:29,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:29,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:16:29,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657861096] [2022-01-11 00:16:29,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:29,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:16:29,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:16:29,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:29,109 INFO L87 Difference]: Start difference. First operand 35607 states and 46040 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:35,788 INFO L93 Difference]: Finished difference Result 102289 states and 132474 transitions. [2022-01-11 00:16:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:16:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:16:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:35,897 INFO L225 Difference]: With dead ends: 102289 [2022-01-11 00:16:35,897 INFO L226 Difference]: Without dead ends: 69837 [2022-01-11 00:16:35,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:16:35,929 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1253 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:35,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 2094 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:35,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69837 states. [2022-01-11 00:16:41,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69837 to 54837. [2022-01-11 00:16:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54837 states, 54833 states have (on average 1.3025003191508764) internal successors, (71420), 54836 states have internal predecessors, (71420), 0 states have call successors, (0), 0 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 00:16:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54837 states to 54837 states and 71420 transitions. [2022-01-11 00:16:41,530 INFO L78 Accepts]: Start accepts. Automaton has 54837 states and 71420 transitions. Word has length 64 [2022-01-11 00:16:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:41,530 INFO L470 AbstractCegarLoop]: Abstraction has 54837 states and 71420 transitions. [2022-01-11 00:16:41,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 54837 states and 71420 transitions. [2022-01-11 00:16:41,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-11 00:16:41,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:41,533 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] [2022-01-11 00:16:41,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 00:16:41,534 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:16:41,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:41,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1208431767, now seen corresponding path program 1 times [2022-01-11 00:16:41,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:41,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99622286] [2022-01-11 00:16:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:41,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:41,623 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 00:16:41,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:41,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99622286] [2022-01-11 00:16:41,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99622286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:41,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:41,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 00:16:41,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716453741] [2022-01-11 00:16:41,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:41,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 00:16:41,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:41,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 00:16:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-11 00:16:41,624 INFO L87 Difference]: Start difference. First operand 54837 states and 71420 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:59,852 INFO L93 Difference]: Finished difference Result 170159 states and 221017 transitions. [2022-01-11 00:16:59,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-11 00:16:59,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-01-11 00:16:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:17:00,272 INFO L225 Difference]: With dead ends: 170159 [2022-01-11 00:17:00,272 INFO L226 Difference]: Without dead ends: 170157 [2022-01-11 00:17:00,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-01-11 00:17:00,307 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 2248 mSDsluCounter, 4666 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 6176 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:17:00,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 6176 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:17:00,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170157 states. [2022-01-11 00:17:08,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170157 to 72517. [2022-01-11 00:17:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72517 states, 72513 states have (on average 1.308013735468123) internal successors, (94848), 72516 states have internal predecessors, (94848), 0 states have call successors, (0), 0 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 00:17:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72517 states to 72517 states and 94848 transitions. [2022-01-11 00:17:08,891 INFO L78 Accepts]: Start accepts. Automaton has 72517 states and 94848 transitions. Word has length 67 [2022-01-11 00:17:08,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:17:08,892 INFO L470 AbstractCegarLoop]: Abstraction has 72517 states and 94848 transitions. [2022-01-11 00:17:08,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:17:08,892 INFO L276 IsEmpty]: Start isEmpty. Operand 72517 states and 94848 transitions. [2022-01-11 00:17:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 00:17:08,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:17:08,896 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:17:08,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 00:17:08,896 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 00:17:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:17:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash -459143415, now seen corresponding path program 1 times [2022-01-11 00:17:08,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:17:08,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487446065] [2022-01-11 00:17:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:17:08,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:17:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:17:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:17:08,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:17:08,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487446065] [2022-01-11 00:17:08,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487446065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:17:08,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:17:08,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:17:08,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4018055] [2022-01-11 00:17:08,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:17:08,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:17:08,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:17:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:17:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:17:08,921 INFO L87 Difference]: Start difference. First operand 72517 states and 94848 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)