/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:39:53,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:39:53,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:39:53,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:39:53,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:39:53,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:39:53,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:39:53,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:39:53,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:39:53,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:39:53,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:39:53,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:39:53,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:39:53,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:39:53,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:39:53,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:39:53,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:39:53,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:39:53,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:39:53,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:39:53,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:39:53,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:39:53,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:39:53,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:39:53,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 07:39:53,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:39:53,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:39:53,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:39:53,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:39:53,217 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:39:53,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:39:53,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:39:53,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:39:53,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:39:53,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:39:53,219 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:39:53,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:39:53,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:39:53,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:39:53,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:39:53,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:39:53,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:39:53,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:39:53,223 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:39:53,223 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:39:53,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:39:53,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:39:53,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:39:53,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:39:53,449 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:39:53,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2022-01-11 07:39:53,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c670f90/373d3979e40c4070b19e721ed32266b7/FLAG620749c01 [2022-01-11 07:39:53,921 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:39:53,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c [2022-01-11 07:39:53,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c670f90/373d3979e40c4070b19e721ed32266b7/FLAG620749c01 [2022-01-11 07:39:53,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c670f90/373d3979e40c4070b19e721ed32266b7 [2022-01-11 07:39:53,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:39:53,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:39:53,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:39:53,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:39:53,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:39:53,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:39:53" (1/1) ... [2022-01-11 07:39:53,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734bc3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:53, skipping insertion in model container [2022-01-11 07:39:53,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:39:53" (1/1) ... [2022-01-11 07:39:53,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:39:54,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:39:54,152 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c[914,927] [2022-01-11 07:39:54,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c[7115,7128] [2022-01-11 07:39:54,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:39:54,234 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:39:54,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c[914,927] [2022-01-11 07:39:54,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-1.c[7115,7128] [2022-01-11 07:39:54,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:39:54,321 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:39:54,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54 WrapperNode [2022-01-11 07:39:54,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:39:54,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:39:54,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:39:54,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:39:54,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,390 INFO L137 Inliner]: procedures = 60, calls = 67, calls flagged for inlining = 62, calls inlined = 90, statements flattened = 1126 [2022-01-11 07:39:54,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:39:54,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:39:54,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:39:54,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:39:54,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:39:54,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:39:54,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:39:54,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:39:54,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (1/1) ... [2022-01-11 07:39:54,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:39:54,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:39:54,486 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 07:39:54,487 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 07:39:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:39:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:39:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:39:54,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:39:54,626 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:39:54,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:39:55,322 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:39:55,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:39:55,330 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-11 07:39:55,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:39:55 BoogieIcfgContainer [2022-01-11 07:39:55,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:39:55,333 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:39:55,333 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:39:55,334 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:39:55,336 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:39:55" (1/1) ... [2022-01-11 07:39:55,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:39:55 BasicIcfg [2022-01-11 07:39:55,523 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:39:55,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:39:55,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:39:55,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:39:55,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:39:53" (1/4) ... [2022-01-11 07:39:55,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375bbd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:39:55, skipping insertion in model container [2022-01-11 07:39:55,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:39:54" (2/4) ... [2022-01-11 07:39:55,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375bbd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:39:55, skipping insertion in model container [2022-01-11 07:39:55,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:39:55" (3/4) ... [2022-01-11 07:39:55,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375bbd78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:39:55, skipping insertion in model container [2022-01-11 07:39:55,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:39:55" (4/4) ... [2022-01-11 07:39:55,528 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.03.cil-1.cTransformedIcfg [2022-01-11 07:39:55,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:39:55,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-11 07:39:55,560 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:39:55,564 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 07:39:55,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-11 07:39:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 436 states, 431 states have (on average 1.5522041763341068) internal successors, (669), 435 states have internal predecessors, (669), 0 states have call successors, (0), 0 states 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 07:39:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:39:55,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:55,583 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 07:39:55,584 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:55,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash -546067027, now seen corresponding path program 1 times [2022-01-11 07:39:55,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:55,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920358012] [2022-01-11 07:39:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:55,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:55,834 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 07:39:55,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:55,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920358012] [2022-01-11 07:39:55,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920358012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:55,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:55,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:55,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880943514] [2022-01-11 07:39:55,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:55,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:55,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:55,870 INFO L87 Difference]: Start difference. First operand has 436 states, 431 states have (on average 1.5522041763341068) internal successors, (669), 435 states have internal predecessors, (669), 0 states have call successors, (0), 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 07:39:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,003 INFO L93 Difference]: Finished difference Result 899 states and 1377 transitions. [2022-01-11 07:39:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,007 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 07:39:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,019 INFO L225 Difference]: With dead ends: 899 [2022-01-11 07:39:56,019 INFO L226 Difference]: Without dead ends: 519 [2022-01-11 07:39:56,023 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 07:39:56,025 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 131 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1264 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:39:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-11 07:39:56,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 515. [2022-01-11 07:39:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 511 states have (on average 1.4892367906066537) internal successors, (761), 514 states have internal predecessors, (761), 0 states have call successors, (0), 0 states 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 07:39:56,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 761 transitions. [2022-01-11 07:39:56,079 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 761 transitions. Word has length 44 [2022-01-11 07:39:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,079 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 761 transitions. [2022-01-11 07:39:56,079 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 07:39:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 761 transitions. [2022-01-11 07:39:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:39:56,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,081 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 07:39:56,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:39:56,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,082 INFO L85 PathProgramCache]: Analyzing trace with hash -365046899, now seen corresponding path program 1 times [2022-01-11 07:39:56,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913365704] [2022-01-11 07:39:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,155 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 07:39:56,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913365704] [2022-01-11 07:39:56,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913365704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:56,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194654099] [2022-01-11 07:39:56,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:56,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:56,159 INFO L87 Difference]: Start difference. First operand 515 states and 761 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 07:39:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,189 INFO L93 Difference]: Finished difference Result 799 states and 1165 transitions. [2022-01-11 07:39:56,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,190 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 07:39:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,194 INFO L225 Difference]: With dead ends: 799 [2022-01-11 07:39:56,195 INFO L226 Difference]: Without dead ends: 637 [2022-01-11 07:39:56,196 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 07:39:56,197 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 611 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 716 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-01-11 07:39:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 627. [2022-01-11 07:39:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 623 states have (on average 1.4735152487961476) internal successors, (918), 626 states have internal predecessors, (918), 0 states have call successors, (0), 0 states 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 07:39:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 918 transitions. [2022-01-11 07:39:56,223 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 918 transitions. Word has length 44 [2022-01-11 07:39:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,224 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 918 transitions. [2022-01-11 07:39:56,224 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 07:39:56,224 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 918 transitions. [2022-01-11 07:39:56,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:39:56,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:56,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:39:56,226 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1673550866, now seen corresponding path program 1 times [2022-01-11 07:39:56,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678409387] [2022-01-11 07:39:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:56,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678409387] [2022-01-11 07:39:56,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678409387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:56,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894608038] [2022-01-11 07:39:56,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:56,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:56,309 INFO L87 Difference]: Start difference. First operand 627 states and 918 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 07:39:56,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,412 INFO L93 Difference]: Finished difference Result 1038 states and 1495 transitions. [2022-01-11 07:39:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,413 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 07:39:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,415 INFO L225 Difference]: With dead ends: 1038 [2022-01-11 07:39:56,415 INFO L226 Difference]: Without dead ends: 776 [2022-01-11 07:39:56,416 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 07:39:56,417 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 102 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1225 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:39:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-01-11 07:39:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 772. [2022-01-11 07:39:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 768 states have (on average 1.4505208333333333) internal successors, (1114), 771 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states 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 07:39:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1114 transitions. [2022-01-11 07:39:56,441 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1114 transitions. Word has length 44 [2022-01-11 07:39:56,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,442 INFO L470 AbstractCegarLoop]: Abstraction has 772 states and 1114 transitions. [2022-01-11 07:39:56,442 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 07:39:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1114 transitions. [2022-01-11 07:39:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 07:39:56,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,443 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 07:39:56,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:39:56,443 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2082375091, now seen corresponding path program 1 times [2022-01-11 07:39:56,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957811816] [2022-01-11 07:39:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,482 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 07:39:56,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957811816] [2022-01-11 07:39:56,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957811816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:56,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152253197] [2022-01-11 07:39:56,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:56,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:56,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:56,484 INFO L87 Difference]: Start difference. First operand 772 states and 1114 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 07:39:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,521 INFO L93 Difference]: Finished difference Result 1524 states and 2162 transitions. [2022-01-11 07:39:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,522 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 07:39:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,525 INFO L225 Difference]: With dead ends: 1524 [2022-01-11 07:39:56,525 INFO L226 Difference]: Without dead ends: 1160 [2022-01-11 07:39:56,526 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 07:39:56,527 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 590 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 742 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2022-01-11 07:39:56,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1156. [2022-01-11 07:39:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1152 states have (on average 1.4114583333333333) internal successors, (1626), 1155 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states 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 07:39:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1626 transitions. [2022-01-11 07:39:56,556 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1626 transitions. Word has length 44 [2022-01-11 07:39:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,556 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1626 transitions. [2022-01-11 07:39:56,556 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 07:39:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1626 transitions. [2022-01-11 07:39:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 07:39:56,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,557 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 07:39:56,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:39:56,558 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 181105350, now seen corresponding path program 1 times [2022-01-11 07:39:56,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687979313] [2022-01-11 07:39:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,592 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 07:39:56,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687979313] [2022-01-11 07:39:56,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687979313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:56,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231181479] [2022-01-11 07:39:56,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:56,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:56,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:56,594 INFO L87 Difference]: Start difference. First operand 1156 states and 1626 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,642 INFO L93 Difference]: Finished difference Result 2099 states and 2922 transitions. [2022-01-11 07:39:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,646 INFO L225 Difference]: With dead ends: 2099 [2022-01-11 07:39:56,647 INFO L226 Difference]: Without dead ends: 1319 [2022-01-11 07:39:56,648 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 07:39:56,649 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 88 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 1197 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:56,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-01-11 07:39:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1296. [2022-01-11 07:39:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1292 states have (on average 1.388544891640867) internal successors, (1794), 1295 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states 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 07:39:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1794 transitions. [2022-01-11 07:39:56,681 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1794 transitions. Word has length 45 [2022-01-11 07:39:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,682 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 1794 transitions. [2022-01-11 07:39:56,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1794 transitions. [2022-01-11 07:39:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 07:39:56,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,683 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 07:39:56,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:39:56,683 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 210687813, now seen corresponding path program 1 times [2022-01-11 07:39:56,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054212359] [2022-01-11 07:39:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,749 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 07:39:56,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054212359] [2022-01-11 07:39:56,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054212359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:56,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997141443] [2022-01-11 07:39:56,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:56,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:56,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:56,751 INFO L87 Difference]: Start difference. First operand 1296 states and 1794 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:56,810 INFO L93 Difference]: Finished difference Result 2925 states and 3995 transitions. [2022-01-11 07:39:56,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:39:56,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:56,816 INFO L225 Difference]: With dead ends: 2925 [2022-01-11 07:39:56,817 INFO L226 Difference]: Without dead ends: 2015 [2022-01-11 07:39:56,818 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 07:39:56,823 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 576 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:56,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 709 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-01-11 07:39:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1961. [2022-01-11 07:39:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1957 states have (on average 1.3622892181911088) internal successors, (2666), 1960 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states 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 07:39:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2666 transitions. [2022-01-11 07:39:56,907 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2666 transitions. Word has length 45 [2022-01-11 07:39:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:56,909 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 2666 transitions. [2022-01-11 07:39:56,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 07:39:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2666 transitions. [2022-01-11 07:39:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:39:56,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:56,910 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:56,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:39:56,910 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:56,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1751002510, now seen corresponding path program 1 times [2022-01-11 07:39:56,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:56,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947612550] [2022-01-11 07:39:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:56,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:56,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:39:56,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:56,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947612550] [2022-01-11 07:39:56,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947612550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:56,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:56,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:39:56,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233294367] [2022-01-11 07:39:56,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:56,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:39:56,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:56,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:39:56,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:39:56,998 INFO L87 Difference]: Start difference. First operand 1961 states and 2666 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:57,132 INFO L93 Difference]: Finished difference Result 4672 states and 6324 transitions. [2022-01-11 07:39:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:39:57,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 07:39:57,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:57,142 INFO L225 Difference]: With dead ends: 4672 [2022-01-11 07:39:57,143 INFO L226 Difference]: Without dead ends: 3303 [2022-01-11 07:39:57,145 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 07:39:57,147 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 390 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:57,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 2580 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2022-01-11 07:39:57,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 2009. [2022-01-11 07:39:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 2005 states have (on average 1.344638403990025) internal successors, (2696), 2008 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states 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 07:39:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2696 transitions. [2022-01-11 07:39:57,250 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2696 transitions. Word has length 52 [2022-01-11 07:39:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:57,251 INFO L470 AbstractCegarLoop]: Abstraction has 2009 states and 2696 transitions. [2022-01-11 07:39:57,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2696 transitions. [2022-01-11 07:39:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:39:57,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:57,252 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:57,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:39:57,253 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash 199297745, now seen corresponding path program 1 times [2022-01-11 07:39:57,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:57,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943782851] [2022-01-11 07:39:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:57,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:57,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:39:57,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:57,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943782851] [2022-01-11 07:39:57,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943782851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:57,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:57,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:39:57,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782034754] [2022-01-11 07:39:57,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:57,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:39:57,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:57,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:39:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:39:57,316 INFO L87 Difference]: Start difference. First operand 2009 states and 2696 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:57,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:57,475 INFO L93 Difference]: Finished difference Result 4372 states and 5853 transitions. [2022-01-11 07:39:57,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:39:57,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 07:39:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:57,484 INFO L225 Difference]: With dead ends: 4372 [2022-01-11 07:39:57,484 INFO L226 Difference]: Without dead ends: 2765 [2022-01-11 07:39:57,487 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 07:39:57,487 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 351 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:57,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 2592 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-01-11 07:39:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2021. [2022-01-11 07:39:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2021 states, 2017 states have (on average 1.3277144273673773) internal successors, (2678), 2020 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states 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 07:39:57,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2678 transitions. [2022-01-11 07:39:57,612 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2678 transitions. Word has length 52 [2022-01-11 07:39:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:57,613 INFO L470 AbstractCegarLoop]: Abstraction has 2021 states and 2678 transitions. [2022-01-11 07:39:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:39:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2678 transitions. [2022-01-11 07:39:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 07:39:57,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:57,614 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:57,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:39:57,615 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:57,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash 210613872, now seen corresponding path program 1 times [2022-01-11 07:39:57,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:57,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26675139] [2022-01-11 07:39:57,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:57,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:57,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:57,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:57,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26675139] [2022-01-11 07:39:57,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26675139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:57,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:57,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 07:39:57,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560473509] [2022-01-11 07:39:57,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:57,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 07:39:57,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:57,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 07:39:57,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 07:39:57,694 INFO L87 Difference]: Start difference. First operand 2021 states and 2678 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 07:39:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:57,836 INFO L93 Difference]: Finished difference Result 2371 states and 3130 transitions. [2022-01-11 07:39:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 07:39:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-11 07:39:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:57,844 INFO L225 Difference]: With dead ends: 2371 [2022-01-11 07:39:57,845 INFO L226 Difference]: Without dead ends: 2369 [2022-01-11 07:39:57,845 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 07:39:57,847 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 1287 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:57,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 716 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2369 states. [2022-01-11 07:39:57,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2369 to 2019. [2022-01-11 07:39:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 2016 states have (on average 1.3229166666666667) internal successors, (2667), 2018 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states 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 07:39:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2667 transitions. [2022-01-11 07:39:57,967 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2667 transitions. Word has length 52 [2022-01-11 07:39:57,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:57,967 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2667 transitions. [2022-01-11 07:39:57,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 07:39:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2667 transitions. [2022-01-11 07:39:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 07:39:57,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:57,968 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:39:57,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:39:57,968 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2060903647, now seen corresponding path program 1 times [2022-01-11 07:39:57,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:57,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279094149] [2022-01-11 07:39:57,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:57,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:58,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:58,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279094149] [2022-01-11 07:39:58,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279094149] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 07:39:58,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759486832] [2022-01-11 07:39:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:58,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 07:39:58,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:39:58,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 07:39:58,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 07:39:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:58,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 07:39:58,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 07:39:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:58,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 07:39:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:58,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759486832] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 07:39:58,768 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 07:39:58,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-11 07:39:58,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030285114] [2022-01-11 07:39:58,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 07:39:58,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 07:39:58,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:58,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 07:39:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:39:58,770 INFO L87 Difference]: Start difference. First operand 2019 states and 2667 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 07:39:59,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:39:59,326 INFO L93 Difference]: Finished difference Result 5512 states and 7253 transitions. [2022-01-11 07:39:59,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 07:39:59,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 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 07:39:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:39:59,345 INFO L225 Difference]: With dead ends: 5512 [2022-01-11 07:39:59,346 INFO L226 Difference]: Without dead ends: 5510 [2022-01-11 07:39:59,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-11 07:39:59,348 INFO L933 BasicCegarLoop]: 771 mSDtfsCounter, 2271 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:39:59,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2271 Valid, 3294 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:39:59,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5510 states. [2022-01-11 07:39:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5510 to 3540. [2022-01-11 07:39:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3540 states, 3537 states have (on average 1.317500706813684) internal successors, (4660), 3539 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states 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 07:39:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4660 transitions. [2022-01-11 07:39:59,706 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4660 transitions. Word has length 53 [2022-01-11 07:39:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:39:59,706 INFO L470 AbstractCegarLoop]: Abstraction has 3540 states and 4660 transitions. [2022-01-11 07:39:59,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 07:39:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4660 transitions. [2022-01-11 07:39:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 07:39:59,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:39:59,708 INFO L514 BasicCegarLoop]: trace histogram [3, 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 07:39:59,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 07:39:59,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-11 07:39:59,936 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:39:59,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:39:59,936 INFO L85 PathProgramCache]: Analyzing trace with hash 678881442, now seen corresponding path program 2 times [2022-01-11 07:39:59,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:39:59,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523308727] [2022-01-11 07:39:59,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:39:59,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:39:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:39:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:39:59,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:39:59,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523308727] [2022-01-11 07:39:59,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523308727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:39:59,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:39:59,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:39:59,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809444113] [2022-01-11 07:39:59,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:39:59,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:39:59,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:39:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:39:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:39:59,982 INFO L87 Difference]: Start difference. First operand 3540 states and 4660 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:00,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:00,173 INFO L93 Difference]: Finished difference Result 5178 states and 6825 transitions. [2022-01-11 07:40:00,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 07:40:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:00,182 INFO L225 Difference]: With dead ends: 5178 [2022-01-11 07:40:00,182 INFO L226 Difference]: Without dead ends: 2450 [2022-01-11 07:40:00,186 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 07:40:00,186 INFO L933 BasicCegarLoop]: 683 mSDtfsCounter, 572 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:00,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 797 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:00,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2022-01-11 07:40:00,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2422. [2022-01-11 07:40:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2419 states have (on average 1.3046713517982638) internal successors, (3156), 2421 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states 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 07:40:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3156 transitions. [2022-01-11 07:40:00,367 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3156 transitions. Word has length 56 [2022-01-11 07:40:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:00,367 INFO L470 AbstractCegarLoop]: Abstraction has 2422 states and 3156 transitions. [2022-01-11 07:40:00,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3156 transitions. [2022-01-11 07:40:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 07:40:00,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:00,369 INFO L514 BasicCegarLoop]: trace histogram [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 07:40:00,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:40:00,369 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:00,369 INFO L85 PathProgramCache]: Analyzing trace with hash 463734239, now seen corresponding path program 1 times [2022-01-11 07:40:00,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:00,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870577771] [2022-01-11 07:40:00,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:00,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:00,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:00,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870577771] [2022-01-11 07:40:00,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870577771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:00,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:00,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:00,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889852499] [2022-01-11 07:40:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:00,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:00,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:00,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:00,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:00,394 INFO L87 Difference]: Start difference. First operand 2422 states and 3156 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 07:40:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:00,631 INFO L93 Difference]: Finished difference Result 5801 states and 7436 transitions. [2022-01-11 07:40:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:00,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-11 07:40:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:00,646 INFO L225 Difference]: With dead ends: 5801 [2022-01-11 07:40:00,646 INFO L226 Difference]: Without dead ends: 2988 [2022-01-11 07:40:00,649 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 07:40:00,650 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 87 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:00,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1314 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2022-01-11 07:40:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2988. [2022-01-11 07:40:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2985 states have (on average 1.283752093802345) internal successors, (3832), 2987 states have internal predecessors, (3832), 0 states have call successors, (0), 0 states 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 07:40:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 3832 transitions. [2022-01-11 07:40:00,831 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 3832 transitions. Word has length 60 [2022-01-11 07:40:00,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:00,831 INFO L470 AbstractCegarLoop]: Abstraction has 2988 states and 3832 transitions. [2022-01-11 07:40:00,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 07:40:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 3832 transitions. [2022-01-11 07:40:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:00,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:00,836 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] [2022-01-11 07:40:00,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:40:00,836 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:00,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:00,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1052078073, now seen corresponding path program 1 times [2022-01-11 07:40:00,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:00,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665526633] [2022-01-11 07:40:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:00,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:00,881 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 07:40:00,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:00,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665526633] [2022-01-11 07:40:00,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665526633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:00,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:00,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:00,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475391929] [2022-01-11 07:40:00,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:00,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:00,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:00,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:00,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:00,882 INFO L87 Difference]: Start difference. First operand 2988 states and 3832 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:01,079 INFO L93 Difference]: Finished difference Result 3547 states and 4667 transitions. [2022-01-11 07:40:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:01,091 INFO L225 Difference]: With dead ends: 3547 [2022-01-11 07:40:01,091 INFO L226 Difference]: Without dead ends: 3230 [2022-01-11 07:40:01,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:01,093 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 560 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:01,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 1008 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-01-11 07:40:01,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3226. [2022-01-11 07:40:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.2987899472541111) internal successors, (4186), 3225 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states 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 07:40:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4186 transitions. [2022-01-11 07:40:01,351 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4186 transitions. Word has length 66 [2022-01-11 07:40:01,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:01,351 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4186 transitions. [2022-01-11 07:40:01,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:01,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4186 transitions. [2022-01-11 07:40:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:01,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:01,353 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] [2022-01-11 07:40:01,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:40:01,353 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:01,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:01,353 INFO L85 PathProgramCache]: Analyzing trace with hash 213023783, now seen corresponding path program 1 times [2022-01-11 07:40:01,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:01,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174286459] [2022-01-11 07:40:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:01,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:01,371 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 07:40:01,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:01,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174286459] [2022-01-11 07:40:01,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174286459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:01,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:01,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:01,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004371157] [2022-01-11 07:40:01,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:01,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:01,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:01,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:01,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:01,373 INFO L87 Difference]: Start difference. First operand 3226 states and 4186 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:01,586 INFO L93 Difference]: Finished difference Result 3780 states and 5014 transitions. [2022-01-11 07:40:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:01,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:01,592 INFO L225 Difference]: With dead ends: 3780 [2022-01-11 07:40:01,592 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:01,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:01,593 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 600 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:01,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [600 Valid, 606 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:01,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.2963077877753646) internal successors, (4178), 3225 states have internal predecessors, (4178), 0 states have call successors, (0), 0 states 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 07:40:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4178 transitions. [2022-01-11 07:40:01,783 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4178 transitions. Word has length 66 [2022-01-11 07:40:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:01,783 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4178 transitions. [2022-01-11 07:40:01,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4178 transitions. [2022-01-11 07:40:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:01,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:01,785 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] [2022-01-11 07:40:01,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:40:01,785 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1131639801, now seen corresponding path program 1 times [2022-01-11 07:40:01,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:01,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556545551] [2022-01-11 07:40:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:01,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:01,806 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 07:40:01,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:01,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556545551] [2022-01-11 07:40:01,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556545551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:01,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:01,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:01,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742192675] [2022-01-11 07:40:01,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:01,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:01,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:01,808 INFO L87 Difference]: Start difference. First operand 3226 states and 4178 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:02,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:02,012 INFO L93 Difference]: Finished difference Result 3779 states and 4997 transitions. [2022-01-11 07:40:02,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:02,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:02,017 INFO L225 Difference]: With dead ends: 3779 [2022-01-11 07:40:02,017 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:02,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:02,019 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 594 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:02,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 601 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:02,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.293825628296618) internal successors, (4170), 3225 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states 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 07:40:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4170 transitions. [2022-01-11 07:40:02,217 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4170 transitions. Word has length 66 [2022-01-11 07:40:02,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:02,217 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4170 transitions. [2022-01-11 07:40:02,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4170 transitions. [2022-01-11 07:40:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:02,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:02,219 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] [2022-01-11 07:40:02,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:40:02,220 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash -482279385, now seen corresponding path program 1 times [2022-01-11 07:40:02,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:02,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575410685] [2022-01-11 07:40:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:02,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:02,238 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 07:40:02,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:02,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575410685] [2022-01-11 07:40:02,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575410685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:02,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:02,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:02,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613797779] [2022-01-11 07:40:02,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:02,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:02,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:02,239 INFO L87 Difference]: Start difference. First operand 3226 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:02,444 INFO L93 Difference]: Finished difference Result 3778 states and 4980 transitions. [2022-01-11 07:40:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:02,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:02,450 INFO L225 Difference]: With dead ends: 3778 [2022-01-11 07:40:02,450 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:02,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:02,452 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 588 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:02,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 596 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.2913434688178715) internal successors, (4162), 3225 states have internal predecessors, (4162), 0 states have call successors, (0), 0 states 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 07:40:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4162 transitions. [2022-01-11 07:40:02,728 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4162 transitions. Word has length 66 [2022-01-11 07:40:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:02,729 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4162 transitions. [2022-01-11 07:40:02,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4162 transitions. [2022-01-11 07:40:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:02,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:02,730 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] [2022-01-11 07:40:02,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:40:02,731 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1478330375, now seen corresponding path program 1 times [2022-01-11 07:40:02,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:02,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803835525] [2022-01-11 07:40:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:02,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:02,750 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 07:40:02,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:02,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803835525] [2022-01-11 07:40:02,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803835525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:02,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:02,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:02,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485285375] [2022-01-11 07:40:02,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:02,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:02,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:02,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:02,751 INFO L87 Difference]: Start difference. First operand 3226 states and 4162 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:02,951 INFO L93 Difference]: Finished difference Result 3777 states and 4963 transitions. [2022-01-11 07:40:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:02,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:02,957 INFO L225 Difference]: With dead ends: 3777 [2022-01-11 07:40:02,957 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:02,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:02,959 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 534 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:02,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 617 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:02,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.285758609990692) internal successors, (4144), 3225 states have internal predecessors, (4144), 0 states have call successors, (0), 0 states 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 07:40:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4144 transitions. [2022-01-11 07:40:03,192 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4144 transitions. Word has length 66 [2022-01-11 07:40:03,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:03,192 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4144 transitions. [2022-01-11 07:40:03,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4144 transitions. [2022-01-11 07:40:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:03,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:03,194 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] [2022-01-11 07:40:03,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:40:03,194 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1851745253, now seen corresponding path program 1 times [2022-01-11 07:40:03,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:03,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812877375] [2022-01-11 07:40:03,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:03,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:03,216 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 07:40:03,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:03,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812877375] [2022-01-11 07:40:03,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812877375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:03,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:03,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:03,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113933977] [2022-01-11 07:40:03,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:03,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:03,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:03,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:03,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:03,219 INFO L87 Difference]: Start difference. First operand 3226 states and 4144 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:03,495 INFO L93 Difference]: Finished difference Result 3776 states and 4926 transitions. [2022-01-11 07:40:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:03,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:03,501 INFO L225 Difference]: With dead ends: 3776 [2022-01-11 07:40:03,501 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:03,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:03,502 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 523 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:03,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 605 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:03,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.2801737511635123) internal successors, (4126), 3225 states have internal predecessors, (4126), 0 states have call successors, (0), 0 states 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 07:40:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4126 transitions. [2022-01-11 07:40:03,745 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4126 transitions. Word has length 66 [2022-01-11 07:40:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:03,745 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4126 transitions. [2022-01-11 07:40:03,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4126 transitions. [2022-01-11 07:40:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:03,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:03,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:03,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:40:03,748 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1319604092, now seen corresponding path program 1 times [2022-01-11 07:40:03,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:03,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947416613] [2022-01-11 07:40:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:03,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:03,777 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 07:40:03,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947416613] [2022-01-11 07:40:03,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947416613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:03,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:03,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:03,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43005452] [2022-01-11 07:40:03,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:03,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:03,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:03,779 INFO L87 Difference]: Start difference. First operand 3226 states and 4126 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:04,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:04,073 INFO L93 Difference]: Finished difference Result 3775 states and 4889 transitions. [2022-01-11 07:40:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:04,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:04,079 INFO L225 Difference]: With dead ends: 3775 [2022-01-11 07:40:04,079 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:04,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:04,081 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 512 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:04,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 593 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:04,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:04,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:04,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.2745888923363327) internal successors, (4108), 3225 states have internal predecessors, (4108), 0 states have call successors, (0), 0 states 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 07:40:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4108 transitions. [2022-01-11 07:40:04,320 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4108 transitions. Word has length 66 [2022-01-11 07:40:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:04,320 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4108 transitions. [2022-01-11 07:40:04,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4108 transitions. [2022-01-11 07:40:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:04,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:04,322 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] [2022-01-11 07:40:04,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:40:04,322 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:04,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash -725336925, now seen corresponding path program 1 times [2022-01-11 07:40:04,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:04,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633540858] [2022-01-11 07:40:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:04,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:04,340 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 07:40:04,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:04,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633540858] [2022-01-11 07:40:04,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633540858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:04,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:04,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:04,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333911391] [2022-01-11 07:40:04,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:04,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:04,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:04,341 INFO L87 Difference]: Start difference. First operand 3226 states and 4108 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:04,619 INFO L93 Difference]: Finished difference Result 3774 states and 4852 transitions. [2022-01-11 07:40:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:04,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:04,624 INFO L225 Difference]: With dead ends: 3774 [2022-01-11 07:40:04,624 INFO L226 Difference]: Without dead ends: 3226 [2022-01-11 07:40:04,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:04,626 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 501 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:04,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 581 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2022-01-11 07:40:04,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3226. [2022-01-11 07:40:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3223 states have (on average 1.269004033509153) internal successors, (4090), 3225 states have internal predecessors, (4090), 0 states have call successors, (0), 0 states 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 07:40:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4090 transitions. [2022-01-11 07:40:04,912 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4090 transitions. Word has length 66 [2022-01-11 07:40:04,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:04,912 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4090 transitions. [2022-01-11 07:40:04,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4090 transitions. [2022-01-11 07:40:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:04,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:04,914 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] [2022-01-11 07:40:04,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:40:04,914 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:04,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:04,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1243630461, now seen corresponding path program 1 times [2022-01-11 07:40:04,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:04,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757160688] [2022-01-11 07:40:04,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:04,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:04,954 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 07:40:04,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:04,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757160688] [2022-01-11 07:40:04,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757160688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:04,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:04,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:40:04,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393592304] [2022-01-11 07:40:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:04,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:40:04,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:40:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:40:04,956 INFO L87 Difference]: Start difference. First operand 3226 states and 4090 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:05,234 INFO L93 Difference]: Finished difference Result 4097 states and 5270 transitions. [2022-01-11 07:40:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:40:05,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:05,240 INFO L225 Difference]: With dead ends: 4097 [2022-01-11 07:40:05,240 INFO L226 Difference]: Without dead ends: 3556 [2022-01-11 07:40:05,241 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 07:40:05,242 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 1154 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:05,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 1673 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2022-01-11 07:40:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3232. [2022-01-11 07:40:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3229 states have (on average 1.2654072468256425) internal successors, (4086), 3231 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states 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 07:40:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4086 transitions. [2022-01-11 07:40:05,484 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4086 transitions. Word has length 66 [2022-01-11 07:40:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:05,484 INFO L470 AbstractCegarLoop]: Abstraction has 3232 states and 4086 transitions. [2022-01-11 07:40:05,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4086 transitions. [2022-01-11 07:40:05,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:05,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:05,486 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] [2022-01-11 07:40:05,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:40:05,486 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:05,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1692327100, now seen corresponding path program 1 times [2022-01-11 07:40:05,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:05,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488351697] [2022-01-11 07:40:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:05,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:05,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:05,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488351697] [2022-01-11 07:40:05,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488351697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:05,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:05,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:40:05,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055415222] [2022-01-11 07:40:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:05,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:40:05,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:40:05,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:40:05,522 INFO L87 Difference]: Start difference. First operand 3232 states and 4086 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:05,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:05,802 INFO L93 Difference]: Finished difference Result 4220 states and 5402 transitions. [2022-01-11 07:40:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:40:05,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:05,808 INFO L225 Difference]: With dead ends: 4220 [2022-01-11 07:40:05,809 INFO L226 Difference]: Without dead ends: 3694 [2022-01-11 07:40:05,810 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 07:40:05,812 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 898 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:05,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 1994 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2022-01-11 07:40:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3238. [2022-01-11 07:40:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3235 states have (on average 1.261823802163833) internal successors, (4082), 3237 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states 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 07:40:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4082 transitions. [2022-01-11 07:40:06,043 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4082 transitions. Word has length 66 [2022-01-11 07:40:06,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:06,043 INFO L470 AbstractCegarLoop]: Abstraction has 3238 states and 4082 transitions. [2022-01-11 07:40:06,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:06,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4082 transitions. [2022-01-11 07:40:06,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 07:40:06,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:06,045 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] [2022-01-11 07:40:06,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:40:06,045 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash 525430853, now seen corresponding path program 1 times [2022-01-11 07:40:06,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:06,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567439832] [2022-01-11 07:40:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:06,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:06,073 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 07:40:06,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:06,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567439832] [2022-01-11 07:40:06,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567439832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:06,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:06,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:06,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547943057] [2022-01-11 07:40:06,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:06,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:06,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:06,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:06,076 INFO L87 Difference]: Start difference. First operand 3238 states and 4082 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:06,317 INFO L93 Difference]: Finished difference Result 4280 states and 5419 transitions. [2022-01-11 07:40:06,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:06,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 07:40:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:06,324 INFO L225 Difference]: With dead ends: 4280 [2022-01-11 07:40:06,324 INFO L226 Difference]: Without dead ends: 3722 [2022-01-11 07:40:06,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:06,326 INFO L933 BasicCegarLoop]: 535 mSDtfsCounter, 448 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:06,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 870 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:06,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2022-01-11 07:40:06,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3668. [2022-01-11 07:40:06,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3665 states have (on average 1.2613915416098227) internal successors, (4623), 3667 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states 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 07:40:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 4623 transitions. [2022-01-11 07:40:06,571 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 4623 transitions. Word has length 66 [2022-01-11 07:40:06,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:06,571 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 4623 transitions. [2022-01-11 07:40:06,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 4623 transitions. [2022-01-11 07:40:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-11 07:40:06,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:06,574 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2022-01-11 07:40:06,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:40:06,574 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 547661498, now seen corresponding path program 1 times [2022-01-11 07:40:06,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:06,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919601001] [2022-01-11 07:40:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:06,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:40:06,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:06,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919601001] [2022-01-11 07:40:06,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919601001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:06,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:06,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:06,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535861505] [2022-01-11 07:40:06,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:06,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:06,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:06,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:06,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:06,605 INFO L87 Difference]: Start difference. First operand 3668 states and 4623 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 07:40:06,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:06,856 INFO L93 Difference]: Finished difference Result 6238 states and 7866 transitions. [2022-01-11 07:40:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:06,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 68 [2022-01-11 07:40:06,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:06,862 INFO L225 Difference]: With dead ends: 6238 [2022-01-11 07:40:06,862 INFO L226 Difference]: Without dead ends: 3668 [2022-01-11 07:40:06,865 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 07:40:06,865 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 487 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:06,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 628 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2022-01-11 07:40:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 3668. [2022-01-11 07:40:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3665 states have (on average 1.246111869031378) internal successors, (4567), 3667 states have internal predecessors, (4567), 0 states have call successors, (0), 0 states 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 07:40:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 4567 transitions. [2022-01-11 07:40:07,095 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 4567 transitions. Word has length 68 [2022-01-11 07:40:07,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:07,095 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 4567 transitions. [2022-01-11 07:40:07,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 07:40:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 4567 transitions. [2022-01-11 07:40:07,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 07:40:07,096 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:07,096 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:07,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:40:07,097 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:07,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1193919387, now seen corresponding path program 1 times [2022-01-11 07:40:07,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:07,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699826613] [2022-01-11 07:40:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:07,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 07:40:07,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:07,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699826613] [2022-01-11 07:40:07,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699826613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:07,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:07,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:07,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228498261] [2022-01-11 07:40:07,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:07,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:07,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:07,118 INFO L87 Difference]: Start difference. First operand 3668 states and 4567 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:07,371 INFO L93 Difference]: Finished difference Result 5732 states and 7157 transitions. [2022-01-11 07:40:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:07,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-01-11 07:40:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:07,376 INFO L225 Difference]: With dead ends: 5732 [2022-01-11 07:40:07,376 INFO L226 Difference]: Without dead ends: 3122 [2022-01-11 07:40:07,378 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 07:40:07,378 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 97 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:07,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1148 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-01-11 07:40:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 3120. [2022-01-11 07:40:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3117 states have (on average 1.2409367982034007) internal successors, (3868), 3119 states have internal predecessors, (3868), 0 states have call successors, (0), 0 states 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 07:40:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3868 transitions. [2022-01-11 07:40:07,640 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3868 transitions. Word has length 69 [2022-01-11 07:40:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:07,641 INFO L470 AbstractCegarLoop]: Abstraction has 3120 states and 3868 transitions. [2022-01-11 07:40:07,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3868 transitions. [2022-01-11 07:40:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 07:40:07,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:07,643 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:07,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:40:07,643 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1136530323, now seen corresponding path program 1 times [2022-01-11 07:40:07,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:07,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559988432] [2022-01-11 07:40:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:07,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:07,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:07,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559988432] [2022-01-11 07:40:07,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559988432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:07,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:07,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:07,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928348624] [2022-01-11 07:40:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:07,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:07,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:07,679 INFO L87 Difference]: Start difference. First operand 3120 states and 3868 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 07:40:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:07,988 INFO L93 Difference]: Finished difference Result 4996 states and 6270 transitions. [2022-01-11 07:40:07,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:07,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-11 07:40:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:07,994 INFO L225 Difference]: With dead ends: 4996 [2022-01-11 07:40:07,994 INFO L226 Difference]: Without dead ends: 4014 [2022-01-11 07:40:07,996 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 07:40:07,997 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 467 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:07,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 866 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2022-01-11 07:40:08,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3922. [2022-01-11 07:40:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3919 states have (on average 1.2472569533044144) internal successors, (4888), 3921 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states 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 07:40:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 4888 transitions. [2022-01-11 07:40:08,240 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 4888 transitions. Word has length 106 [2022-01-11 07:40:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:08,241 INFO L470 AbstractCegarLoop]: Abstraction has 3922 states and 4888 transitions. [2022-01-11 07:40:08,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 07:40:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 4888 transitions. [2022-01-11 07:40:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 07:40:08,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:08,243 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:08,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:40:08,243 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash 618027922, now seen corresponding path program 1 times [2022-01-11 07:40:08,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:08,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587032493] [2022-01-11 07:40:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:08,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:08,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:08,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587032493] [2022-01-11 07:40:08,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587032493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:08,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:08,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:08,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331268056] [2022-01-11 07:40:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:08,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:08,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:08,269 INFO L87 Difference]: Start difference. First operand 3922 states and 4888 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 07:40:08,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:08,623 INFO L93 Difference]: Finished difference Result 7351 states and 9213 transitions. [2022-01-11 07:40:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:08,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-11 07:40:08,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:08,630 INFO L225 Difference]: With dead ends: 7351 [2022-01-11 07:40:08,630 INFO L226 Difference]: Without dead ends: 5595 [2022-01-11 07:40:08,632 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 07:40:08,633 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 476 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:08,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1013 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2022-01-11 07:40:08,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5519. [2022-01-11 07:40:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5516 states have (on average 1.2420232052211748) internal successors, (6851), 5518 states have internal predecessors, (6851), 0 states have call successors, (0), 0 states 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 07:40:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 6851 transitions. [2022-01-11 07:40:08,956 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 6851 transitions. Word has length 106 [2022-01-11 07:40:08,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:08,956 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 6851 transitions. [2022-01-11 07:40:08,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states 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 07:40:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 6851 transitions. [2022-01-11 07:40:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 07:40:08,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:08,960 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:40:08,960 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:08,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash -216374605, now seen corresponding path program 1 times [2022-01-11 07:40:08,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:08,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204230669] [2022-01-11 07:40:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:08,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:40:08,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:08,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204230669] [2022-01-11 07:40:08,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204230669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:08,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:08,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:08,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560376317] [2022-01-11 07:40:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:08,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:08,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:08,980 INFO L87 Difference]: Start difference. First operand 5519 states and 6851 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:40:09,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:09,344 INFO L93 Difference]: Finished difference Result 8849 states and 11028 transitions. [2022-01-11 07:40:09,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:09,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 106 [2022-01-11 07:40:09,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:09,350 INFO L225 Difference]: With dead ends: 8849 [2022-01-11 07:40:09,350 INFO L226 Difference]: Without dead ends: 5472 [2022-01-11 07:40:09,353 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 07:40:09,354 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 407 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 665 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 07:40:09,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 665 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5472 states. [2022-01-11 07:40:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5472 to 5472. [2022-01-11 07:40:09,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5472 states, 5469 states have (on average 1.2428231852258182) internal successors, (6797), 5471 states have internal predecessors, (6797), 0 states have call successors, (0), 0 states 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 07:40:09,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 6797 transitions. [2022-01-11 07:40:09,676 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 6797 transitions. Word has length 106 [2022-01-11 07:40:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:09,676 INFO L470 AbstractCegarLoop]: Abstraction has 5472 states and 6797 transitions. [2022-01-11 07:40:09,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:40:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 6797 transitions. [2022-01-11 07:40:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-11 07:40:09,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:09,679 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:09,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:40:09,680 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:09,680 INFO L85 PathProgramCache]: Analyzing trace with hash -734348317, now seen corresponding path program 1 times [2022-01-11 07:40:09,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:09,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431287014] [2022-01-11 07:40:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:09,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:09,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:09,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431287014] [2022-01-11 07:40:09,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431287014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:09,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:09,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:09,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654412537] [2022-01-11 07:40:09,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:09,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:09,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:09,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:09,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:09,717 INFO L87 Difference]: Start difference. First operand 5472 states and 6797 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:10,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:10,234 INFO L93 Difference]: Finished difference Result 11722 states and 14604 transitions. [2022-01-11 07:40:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:10,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-01-11 07:40:10,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:10,243 INFO L225 Difference]: With dead ends: 11722 [2022-01-11 07:40:10,243 INFO L226 Difference]: Without dead ends: 8416 [2022-01-11 07:40:10,247 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 07:40:10,247 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 475 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:10,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 1018 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:10,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8416 states. [2022-01-11 07:40:10,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8416 to 8188. [2022-01-11 07:40:10,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8188 states, 8185 states have (on average 1.2388515577275503) internal successors, (10140), 8187 states have internal predecessors, (10140), 0 states have call successors, (0), 0 states 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 07:40:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 10140 transitions. [2022-01-11 07:40:10,708 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 10140 transitions. Word has length 107 [2022-01-11 07:40:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:10,708 INFO L470 AbstractCegarLoop]: Abstraction has 8188 states and 10140 transitions. [2022-01-11 07:40:10,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 10140 transitions. [2022-01-11 07:40:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-11 07:40:10,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:10,712 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:10,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:40:10,712 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:10,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1902063775, now seen corresponding path program 1 times [2022-01-11 07:40:10,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:10,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185982172] [2022-01-11 07:40:10,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:10,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:40:10,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:10,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185982172] [2022-01-11 07:40:10,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185982172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:10,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:10,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:10,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200913753] [2022-01-11 07:40:10,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:10,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:10,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:10,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:10,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:10,731 INFO L87 Difference]: Start difference. First operand 8188 states and 10140 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:11,213 INFO L93 Difference]: Finished difference Result 14181 states and 17600 transitions. [2022-01-11 07:40:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:11,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-01-11 07:40:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:11,223 INFO L225 Difference]: With dead ends: 14181 [2022-01-11 07:40:11,223 INFO L226 Difference]: Without dead ends: 8142 [2022-01-11 07:40:11,229 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 07:40:11,230 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 405 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 664 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 07:40:11,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 664 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-01-11 07:40:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 8142. [2022-01-11 07:40:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8142 states, 8139 states have (on average 1.239464307654503) internal successors, (10088), 8141 states have internal predecessors, (10088), 0 states have call successors, (0), 0 states 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 07:40:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8142 states to 8142 states and 10088 transitions. [2022-01-11 07:40:11,710 INFO L78 Accepts]: Start accepts. Automaton has 8142 states and 10088 transitions. Word has length 107 [2022-01-11 07:40:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:11,710 INFO L470 AbstractCegarLoop]: Abstraction has 8142 states and 10088 transitions. [2022-01-11 07:40:11,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:11,711 INFO L276 IsEmpty]: Start isEmpty. Operand 8142 states and 10088 transitions. [2022-01-11 07:40:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-11 07:40:11,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:11,714 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:11,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:40:11,714 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:11,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:11,715 INFO L85 PathProgramCache]: Analyzing trace with hash 22501287, now seen corresponding path program 1 times [2022-01-11 07:40:11,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:11,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738257315] [2022-01-11 07:40:11,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:11,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:11,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:11,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738257315] [2022-01-11 07:40:11,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738257315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:11,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:11,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:11,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581906544] [2022-01-11 07:40:11,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:11,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:11,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:11,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:11,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:11,746 INFO L87 Difference]: Start difference. First operand 8142 states and 10088 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 07:40:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:12,493 INFO L93 Difference]: Finished difference Result 18971 states and 23565 transitions. [2022-01-11 07:40:12,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:12,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-11 07:40:12,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:12,510 INFO L225 Difference]: With dead ends: 18971 [2022-01-11 07:40:12,510 INFO L226 Difference]: Without dead ends: 12995 [2022-01-11 07:40:12,520 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 07:40:12,520 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 395 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:12,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 1005 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12995 states. [2022-01-11 07:40:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12995 to 12991. [2022-01-11 07:40:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12991 states, 12988 states have (on average 1.236910994764398) internal successors, (16065), 12990 states have internal predecessors, (16065), 0 states have call successors, (0), 0 states 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 07:40:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12991 states to 12991 states and 16065 transitions. [2022-01-11 07:40:13,341 INFO L78 Accepts]: Start accepts. Automaton has 12991 states and 16065 transitions. Word has length 108 [2022-01-11 07:40:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:13,341 INFO L470 AbstractCegarLoop]: Abstraction has 12991 states and 16065 transitions. [2022-01-11 07:40:13,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 07:40:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 12991 states and 16065 transitions. [2022-01-11 07:40:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-11 07:40:13,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:13,346 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:13,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:40:13,347 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:13,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1176233978, now seen corresponding path program 1 times [2022-01-11 07:40:13,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:13,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152316120] [2022-01-11 07:40:13,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:13,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:40:13,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:13,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152316120] [2022-01-11 07:40:13,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152316120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:13,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:13,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:13,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923988899] [2022-01-11 07:40:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:13,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:13,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:13,370 INFO L87 Difference]: Start difference. First operand 12991 states and 16065 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 07:40:14,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:14,259 INFO L93 Difference]: Finished difference Result 23771 states and 29435 transitions. [2022-01-11 07:40:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 108 [2022-01-11 07:40:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:14,276 INFO L225 Difference]: With dead ends: 23771 [2022-01-11 07:40:14,277 INFO L226 Difference]: Without dead ends: 12946 [2022-01-11 07:40:14,289 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 07:40:14,290 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 403 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 663 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 07:40:14,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 663 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:14,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12946 states. [2022-01-11 07:40:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12946 to 12946. [2022-01-11 07:40:15,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12946 states, 12943 states have (on average 1.23734837363826) internal successors, (16015), 12945 states have internal predecessors, (16015), 0 states have call successors, (0), 0 states 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 07:40:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12946 states to 12946 states and 16015 transitions. [2022-01-11 07:40:15,102 INFO L78 Accepts]: Start accepts. Automaton has 12946 states and 16015 transitions. Word has length 108 [2022-01-11 07:40:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:15,102 INFO L470 AbstractCegarLoop]: Abstraction has 12946 states and 16015 transitions. [2022-01-11 07:40:15,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 07:40:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 12946 states and 16015 transitions. [2022-01-11 07:40:15,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-11 07:40:15,107 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:15,107 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:15,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:40:15,107 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:15,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1389049390, now seen corresponding path program 1 times [2022-01-11 07:40:15,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:15,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600504729] [2022-01-11 07:40:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:15,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:15,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:15,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600504729] [2022-01-11 07:40:15,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600504729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:15,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:15,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:15,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783385027] [2022-01-11 07:40:15,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:15,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:15,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:15,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:15,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:15,134 INFO L87 Difference]: Start difference. First operand 12946 states and 16015 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 07:40:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:16,435 INFO L93 Difference]: Finished difference Result 33094 states and 40837 transitions. [2022-01-11 07:40:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-11 07:40:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:16,454 INFO L225 Difference]: With dead ends: 33094 [2022-01-11 07:40:16,454 INFO L226 Difference]: Without dead ends: 17674 [2022-01-11 07:40:16,468 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 07:40:16,470 INFO L933 BasicCegarLoop]: 862 mSDtfsCounter, 332 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:16,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 1384 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17674 states. [2022-01-11 07:40:17,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17674 to 17674. [2022-01-11 07:40:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17674 states, 17671 states have (on average 1.228792937581348) internal successors, (21714), 17673 states have internal predecessors, (21714), 0 states have call successors, (0), 0 states 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 07:40:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17674 states to 17674 states and 21714 transitions. [2022-01-11 07:40:17,541 INFO L78 Accepts]: Start accepts. Automaton has 17674 states and 21714 transitions. Word has length 109 [2022-01-11 07:40:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:17,541 INFO L470 AbstractCegarLoop]: Abstraction has 17674 states and 21714 transitions. [2022-01-11 07:40:17,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 07:40:17,542 INFO L276 IsEmpty]: Start isEmpty. Operand 17674 states and 21714 transitions. [2022-01-11 07:40:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:40:17,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:17,547 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:17,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 07:40:17,547 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2087372408, now seen corresponding path program 1 times [2022-01-11 07:40:17,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:17,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227060022] [2022-01-11 07:40:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:17,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-01-11 07:40:17,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:17,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227060022] [2022-01-11 07:40:17,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227060022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:17,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:17,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:17,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035672442] [2022-01-11 07:40:17,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:17,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:17,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:17,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:17,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:17,568 INFO L87 Difference]: Start difference. First operand 17674 states and 21714 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 07:40:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:18,832 INFO L93 Difference]: Finished difference Result 20844 states and 25697 transitions. [2022-01-11 07:40:18,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:18,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 110 [2022-01-11 07:40:18,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:18,856 INFO L225 Difference]: With dead ends: 20844 [2022-01-11 07:40:18,856 INFO L226 Difference]: Without dead ends: 18989 [2022-01-11 07:40:18,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:18,863 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 513 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:18,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 628 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2022-01-11 07:40:20,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 18817. [2022-01-11 07:40:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18814 states have (on average 1.2302009142128203) internal successors, (23145), 18816 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states 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 07:40:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 23145 transitions. [2022-01-11 07:40:20,047 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 23145 transitions. Word has length 110 [2022-01-11 07:40:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:20,048 INFO L470 AbstractCegarLoop]: Abstraction has 18817 states and 23145 transitions. [2022-01-11 07:40:20,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 07:40:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 23145 transitions. [2022-01-11 07:40:20,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:40:20,052 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:20,052 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:20,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 07:40:20,052 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:20,052 INFO L85 PathProgramCache]: Analyzing trace with hash 326953728, now seen corresponding path program 1 times [2022-01-11 07:40:20,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:20,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159606892] [2022-01-11 07:40:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:20,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 07:40:20,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159606892] [2022-01-11 07:40:20,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159606892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:20,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:20,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:20,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113693796] [2022-01-11 07:40:20,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:20,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:20,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:20,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:20,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:20,084 INFO L87 Difference]: Start difference. First operand 18817 states and 23145 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:21,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:21,182 INFO L93 Difference]: Finished difference Result 21827 states and 26901 transitions. [2022-01-11 07:40:21,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:21,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-11 07:40:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:21,208 INFO L225 Difference]: With dead ends: 21827 [2022-01-11 07:40:21,208 INFO L226 Difference]: Without dead ends: 18833 [2022-01-11 07:40:21,216 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 07:40:21,217 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 69 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:21,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 934 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18833 states. [2022-01-11 07:40:22,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18833 to 18833. [2022-01-11 07:40:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18833 states, 18830 states have (on average 1.2273499734466278) internal successors, (23111), 18832 states have internal predecessors, (23111), 0 states have call successors, (0), 0 states 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 07:40:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18833 states to 18833 states and 23111 transitions. [2022-01-11 07:40:22,468 INFO L78 Accepts]: Start accepts. Automaton has 18833 states and 23111 transitions. Word has length 110 [2022-01-11 07:40:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:22,469 INFO L470 AbstractCegarLoop]: Abstraction has 18833 states and 23111 transitions. [2022-01-11 07:40:22,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:22,469 INFO L276 IsEmpty]: Start isEmpty. Operand 18833 states and 23111 transitions. [2022-01-11 07:40:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 07:40:22,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:22,473 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:22,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 07:40:22,473 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:22,473 INFO L85 PathProgramCache]: Analyzing trace with hash 86413599, now seen corresponding path program 1 times [2022-01-11 07:40:22,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:22,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651122695] [2022-01-11 07:40:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:22,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 07:40:22,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:22,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651122695] [2022-01-11 07:40:22,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651122695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:22,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:22,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:22,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880467688] [2022-01-11 07:40:22,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:22,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:22,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:22,503 INFO L87 Difference]: Start difference. First operand 18833 states and 23111 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:23,649 INFO L93 Difference]: Finished difference Result 20301 states and 24908 transitions. [2022-01-11 07:40:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:23,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-11 07:40:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:23,679 INFO L225 Difference]: With dead ends: 20301 [2022-01-11 07:40:23,679 INFO L226 Difference]: Without dead ends: 17191 [2022-01-11 07:40:23,687 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 07:40:23,687 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 487 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:23,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 544 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:23,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17191 states. [2022-01-11 07:40:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17191 to 17092. [2022-01-11 07:40:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17092 states, 17089 states have (on average 1.2248229855462578) internal successors, (20931), 17091 states have internal predecessors, (20931), 0 states have call successors, (0), 0 states 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 07:40:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17092 states to 17092 states and 20931 transitions. [2022-01-11 07:40:24,820 INFO L78 Accepts]: Start accepts. Automaton has 17092 states and 20931 transitions. Word has length 110 [2022-01-11 07:40:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:24,820 INFO L470 AbstractCegarLoop]: Abstraction has 17092 states and 20931 transitions. [2022-01-11 07:40:24,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:40:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 17092 states and 20931 transitions. [2022-01-11 07:40:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-01-11 07:40:24,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:24,827 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:24,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-11 07:40:24,828 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:24,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1104844494, now seen corresponding path program 1 times [2022-01-11 07:40:24,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:24,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057027181] [2022-01-11 07:40:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:24,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:24,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:24,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057027181] [2022-01-11 07:40:24,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057027181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:24,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:24,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:24,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259216408] [2022-01-11 07:40:24,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:24,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:24,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:24,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:24,860 INFO L87 Difference]: Start difference. First operand 17092 states and 20931 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 07:40:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:26,238 INFO L93 Difference]: Finished difference Result 37234 states and 45567 transitions. [2022-01-11 07:40:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-01-11 07:40:26,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:26,267 INFO L225 Difference]: With dead ends: 37234 [2022-01-11 07:40:26,267 INFO L226 Difference]: Without dead ends: 21711 [2022-01-11 07:40:26,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:26,285 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 352 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:26,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 855 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21711 states. [2022-01-11 07:40:27,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21711 to 21615. [2022-01-11 07:40:27,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21615 states, 21612 states have (on average 1.2152970571904498) internal successors, (26265), 21614 states have internal predecessors, (26265), 0 states have call successors, (0), 0 states 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 07:40:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21615 states to 21615 states and 26265 transitions. [2022-01-11 07:40:27,677 INFO L78 Accepts]: Start accepts. Automaton has 21615 states and 26265 transitions. Word has length 140 [2022-01-11 07:40:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:27,677 INFO L470 AbstractCegarLoop]: Abstraction has 21615 states and 26265 transitions. [2022-01-11 07:40:27,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 07:40:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 21615 states and 26265 transitions. [2022-01-11 07:40:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-11 07:40:27,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:27,688 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:27,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-11 07:40:27,688 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash 778947388, now seen corresponding path program 1 times [2022-01-11 07:40:27,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:27,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862378406] [2022-01-11 07:40:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:27,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-11 07:40:27,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:27,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862378406] [2022-01-11 07:40:27,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862378406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:27,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:27,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:27,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217698316] [2022-01-11 07:40:27,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:27,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:27,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:27,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:27,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:27,716 INFO L87 Difference]: Start difference. First operand 21615 states and 26265 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 07:40:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:29,106 INFO L93 Difference]: Finished difference Result 41227 states and 50047 transitions. [2022-01-11 07:40:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:29,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 157 [2022-01-11 07:40:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:29,136 INFO L225 Difference]: With dead ends: 41227 [2022-01-11 07:40:29,136 INFO L226 Difference]: Without dead ends: 21195 [2022-01-11 07:40:29,155 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 07:40:29,155 INFO L933 BasicCegarLoop]: 535 mSDtfsCounter, 390 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:29,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 875 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21195 states. [2022-01-11 07:40:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21195 to 21195. [2022-01-11 07:40:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21195 states, 21192 states have (on average 1.1948376745941864) internal successors, (25321), 21194 states have internal predecessors, (25321), 0 states have call successors, (0), 0 states 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 07:40:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21195 states to 21195 states and 25321 transitions. [2022-01-11 07:40:30,643 INFO L78 Accepts]: Start accepts. Automaton has 21195 states and 25321 transitions. Word has length 157 [2022-01-11 07:40:30,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:30,643 INFO L470 AbstractCegarLoop]: Abstraction has 21195 states and 25321 transitions. [2022-01-11 07:40:30,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 07:40:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 21195 states and 25321 transitions. [2022-01-11 07:40:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-11 07:40:30,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:30,654 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:30,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-11 07:40:30,654 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1427271145, now seen corresponding path program 1 times [2022-01-11 07:40:30,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:30,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909995149] [2022-01-11 07:40:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:30,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:30,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:30,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909995149] [2022-01-11 07:40:30,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909995149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:30,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:30,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:30,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009979006] [2022-01-11 07:40:30,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:30,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:30,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:30,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:30,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:30,688 INFO L87 Difference]: Start difference. First operand 21195 states and 25321 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 07:40:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:32,091 INFO L93 Difference]: Finished difference Result 36371 states and 43633 transitions. [2022-01-11 07:40:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:32,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-01-11 07:40:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:32,119 INFO L225 Difference]: With dead ends: 36371 [2022-01-11 07:40:32,119 INFO L226 Difference]: Without dead ends: 21199 [2022-01-11 07:40:32,134 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 07:40:32,134 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 288 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:32,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 1302 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:40:32,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21199 states. [2022-01-11 07:40:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21199 to 21195. [2022-01-11 07:40:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21195 states, 21192 states have (on average 1.1920064175160439) internal successors, (25261), 21194 states have internal predecessors, (25261), 0 states have call successors, (0), 0 states 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 07:40:33,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21195 states to 21195 states and 25261 transitions. [2022-01-11 07:40:33,581 INFO L78 Accepts]: Start accepts. Automaton has 21195 states and 25261 transitions. Word has length 158 [2022-01-11 07:40:33,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:33,581 INFO L470 AbstractCegarLoop]: Abstraction has 21195 states and 25261 transitions. [2022-01-11 07:40:33,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 07:40:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 21195 states and 25261 transitions. [2022-01-11 07:40:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-11 07:40:33,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:33,589 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:33,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-11 07:40:33,590 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:33,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1471697368, now seen corresponding path program 1 times [2022-01-11 07:40:33,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:33,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620090046] [2022-01-11 07:40:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:33,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-01-11 07:40:33,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:33,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620090046] [2022-01-11 07:40:33,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620090046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:33,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:33,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:33,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380474828] [2022-01-11 07:40:33,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:33,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:33,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:33,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:33,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:33,623 INFO L87 Difference]: Start difference. First operand 21195 states and 25261 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 07:40:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:34,908 INFO L93 Difference]: Finished difference Result 22578 states and 26908 transitions. [2022-01-11 07:40:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:34,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 162 [2022-01-11 07:40:34,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:34,932 INFO L225 Difference]: With dead ends: 22578 [2022-01-11 07:40:34,932 INFO L226 Difference]: Without dead ends: 21164 [2022-01-11 07:40:34,939 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 07:40:34,940 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 69 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:34,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1059 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:34,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21164 states. [2022-01-11 07:40:36,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21164 to 21161. [2022-01-11 07:40:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21161 states, 21158 states have (on average 1.1904244257491257) internal successors, (25187), 21160 states have internal predecessors, (25187), 0 states have call successors, (0), 0 states 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 07:40:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21161 states to 21161 states and 25187 transitions. [2022-01-11 07:40:36,420 INFO L78 Accepts]: Start accepts. Automaton has 21161 states and 25187 transitions. Word has length 162 [2022-01-11 07:40:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:36,421 INFO L470 AbstractCegarLoop]: Abstraction has 21161 states and 25187 transitions. [2022-01-11 07:40:36,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 07:40:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 21161 states and 25187 transitions. [2022-01-11 07:40:36,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-11 07:40:36,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:36,430 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:36,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-11 07:40:36,430 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1983166166, now seen corresponding path program 1 times [2022-01-11 07:40:36,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:36,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066500846] [2022-01-11 07:40:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:36,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-11 07:40:36,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:36,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066500846] [2022-01-11 07:40:36,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066500846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:36,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:36,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:36,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363937431] [2022-01-11 07:40:36,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:36,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:36,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:36,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:36,462 INFO L87 Difference]: Start difference. First operand 21161 states and 25187 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 07:40:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:37,774 INFO L93 Difference]: Finished difference Result 22228 states and 26410 transitions. [2022-01-11 07:40:37,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:37,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 164 [2022-01-11 07:40:37,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:37,803 INFO L225 Difference]: With dead ends: 22228 [2022-01-11 07:40:37,803 INFO L226 Difference]: Without dead ends: 20397 [2022-01-11 07:40:37,811 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 07:40:37,812 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 6 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:37,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 1057 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20397 states. [2022-01-11 07:40:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20397 to 20389. [2022-01-11 07:40:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20389 states, 20386 states have (on average 1.1899342686157166) internal successors, (24258), 20388 states have internal predecessors, (24258), 0 states have call successors, (0), 0 states 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 07:40:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20389 states to 20389 states and 24258 transitions. [2022-01-11 07:40:39,151 INFO L78 Accepts]: Start accepts. Automaton has 20389 states and 24258 transitions. Word has length 164 [2022-01-11 07:40:39,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:39,152 INFO L470 AbstractCegarLoop]: Abstraction has 20389 states and 24258 transitions. [2022-01-11 07:40:39,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 07:40:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 20389 states and 24258 transitions. [2022-01-11 07:40:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-11 07:40:39,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:39,160 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:40:39,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-11 07:40:39,160 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:39,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:39,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1181014505, now seen corresponding path program 1 times [2022-01-11 07:40:39,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:39,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805789492] [2022-01-11 07:40:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:39,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-01-11 07:40:39,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:39,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805789492] [2022-01-11 07:40:39,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805789492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:39,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:39,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:39,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126976780] [2022-01-11 07:40:39,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:39,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:39,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:39,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:39,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:39,190 INFO L87 Difference]: Start difference. First operand 20389 states and 24258 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 07:40:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:40,437 INFO L93 Difference]: Finished difference Result 20392 states and 24261 transitions. [2022-01-11 07:40:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:40,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 164 [2022-01-11 07:40:40,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:40,458 INFO L225 Difference]: With dead ends: 20392 [2022-01-11 07:40:40,459 INFO L226 Difference]: Without dead ends: 19665 [2022-01-11 07:40:40,462 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 07:40:40,463 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 407 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:40,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 573 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19665 states. [2022-01-11 07:40:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19665 to 19665. [2022-01-11 07:40:41,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19665 states, 19663 states have (on average 1.1930020851345167) internal successors, (23458), 19664 states have internal predecessors, (23458), 0 states have call successors, (0), 0 states 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 07:40:41,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19665 states to 19665 states and 23458 transitions. [2022-01-11 07:40:41,740 INFO L78 Accepts]: Start accepts. Automaton has 19665 states and 23458 transitions. Word has length 164 [2022-01-11 07:40:41,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:41,740 INFO L470 AbstractCegarLoop]: Abstraction has 19665 states and 23458 transitions. [2022-01-11 07:40:41,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 07:40:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 19665 states and 23458 transitions. [2022-01-11 07:40:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-01-11 07:40:41,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:41,750 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:41,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-11 07:40:41,750 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1163619447, now seen corresponding path program 1 times [2022-01-11 07:40:41,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:41,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106078030] [2022-01-11 07:40:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:41,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:41,784 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-11 07:40:41,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:41,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106078030] [2022-01-11 07:40:41,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106078030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:41,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:41,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:40:41,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392226986] [2022-01-11 07:40:41,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:41,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:41,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:41,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:41,786 INFO L87 Difference]: Start difference. First operand 19665 states and 23458 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 07:40:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:43,292 INFO L93 Difference]: Finished difference Result 43353 states and 51585 transitions. [2022-01-11 07:40:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 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 189 [2022-01-11 07:40:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:43,317 INFO L225 Difference]: With dead ends: 43353 [2022-01-11 07:40:43,317 INFO L226 Difference]: Without dead ends: 23720 [2022-01-11 07:40:43,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:40:43,329 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 179 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:43,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 735 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23720 states. [2022-01-11 07:40:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23720 to 23592. [2022-01-11 07:40:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23592 states, 23590 states have (on average 1.183891479440441) internal successors, (27928), 23591 states have internal predecessors, (27928), 0 states have call successors, (0), 0 states 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 07:40:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23592 states to 23592 states and 27928 transitions. [2022-01-11 07:40:44,902 INFO L78 Accepts]: Start accepts. Automaton has 23592 states and 27928 transitions. Word has length 189 [2022-01-11 07:40:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:44,902 INFO L470 AbstractCegarLoop]: Abstraction has 23592 states and 27928 transitions. [2022-01-11 07:40:44,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states 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 07:40:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 23592 states and 27928 transitions. [2022-01-11 07:40:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-11 07:40:44,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:44,914 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:44,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-11 07:40:44,914 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:44,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:44,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1669477115, now seen corresponding path program 1 times [2022-01-11 07:40:44,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:44,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361656359] [2022-01-11 07:40:44,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:44,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:44,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:44,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361656359] [2022-01-11 07:40:44,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361656359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:44,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:44,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:44,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65800065] [2022-01-11 07:40:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:44,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:44,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:44,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:44,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:44,949 INFO L87 Difference]: Start difference. First operand 23592 states and 27928 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 07:40:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:46,516 INFO L93 Difference]: Finished difference Result 43208 states and 51332 transitions. [2022-01-11 07:40:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:46,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-01-11 07:40:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:46,540 INFO L225 Difference]: With dead ends: 43208 [2022-01-11 07:40:46,540 INFO L226 Difference]: Without dead ends: 23596 [2022-01-11 07:40:46,552 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 07:40:46,552 INFO L933 BasicCegarLoop]: 655 mSDtfsCounter, 280 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:46,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 1035 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:40:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23596 states. [2022-01-11 07:40:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23596 to 23592. [2022-01-11 07:40:48,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23592 states, 23590 states have (on average 1.179652395082662) internal successors, (27828), 23591 states have internal predecessors, (27828), 0 states have call successors, (0), 0 states 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 07:40:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23592 states to 23592 states and 27828 transitions. [2022-01-11 07:40:48,123 INFO L78 Accepts]: Start accepts. Automaton has 23592 states and 27828 transitions. Word has length 193 [2022-01-11 07:40:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:48,123 INFO L470 AbstractCegarLoop]: Abstraction has 23592 states and 27828 transitions. [2022-01-11 07:40:48,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 07:40:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 23592 states and 27828 transitions. [2022-01-11 07:40:48,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-01-11 07:40:48,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:48,135 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:48,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-11 07:40:48,135 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:48,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:48,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1845833031, now seen corresponding path program 1 times [2022-01-11 07:40:48,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:48,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381742164] [2022-01-11 07:40:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:48,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:48,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:48,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381742164] [2022-01-11 07:40:48,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381742164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:48,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:48,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:48,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495555569] [2022-01-11 07:40:48,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:48,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:48,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:48,176 INFO L87 Difference]: Start difference. First operand 23592 states and 27828 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 07:40:49,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:49,841 INFO L93 Difference]: Finished difference Result 43268 states and 51194 transitions. [2022-01-11 07:40:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:49,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2022-01-11 07:40:49,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:49,869 INFO L225 Difference]: With dead ends: 43268 [2022-01-11 07:40:49,869 INFO L226 Difference]: Without dead ends: 23656 [2022-01-11 07:40:49,884 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 07:40:49,884 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 313 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:49,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 898 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23656 states. [2022-01-11 07:40:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23656 to 23592. [2022-01-11 07:40:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23592 states, 23590 states have (on average 1.1579482831708352) internal successors, (27316), 23591 states have internal predecessors, (27316), 0 states have call successors, (0), 0 states 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 07:40:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23592 states to 23592 states and 27316 transitions. [2022-01-11 07:40:51,494 INFO L78 Accepts]: Start accepts. Automaton has 23592 states and 27316 transitions. Word has length 193 [2022-01-11 07:40:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:51,494 INFO L470 AbstractCegarLoop]: Abstraction has 23592 states and 27316 transitions. [2022-01-11 07:40:51,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 07:40:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23592 states and 27316 transitions. [2022-01-11 07:40:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:40:51,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:51,505 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:51,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-11 07:40:51,505 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:51,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash -734560598, now seen corresponding path program 1 times [2022-01-11 07:40:51,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:51,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425207622] [2022-01-11 07:40:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:51,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:40:51,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:51,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425207622] [2022-01-11 07:40:51,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425207622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:51,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:51,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:51,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767855984] [2022-01-11 07:40:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:51,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:51,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:51,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:51,536 INFO L87 Difference]: Start difference. First operand 23592 states and 27316 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 07:40:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:53,132 INFO L93 Difference]: Finished difference Result 40770 states and 47390 transitions. [2022-01-11 07:40:53,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:53,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2022-01-11 07:40:53,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:53,163 INFO L225 Difference]: With dead ends: 40770 [2022-01-11 07:40:53,163 INFO L226 Difference]: Without dead ends: 23656 [2022-01-11 07:40:53,175 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 07:40:53,176 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 309 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:53,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 978 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23656 states. [2022-01-11 07:40:54,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23656 to 23592. [2022-01-11 07:40:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23592 states, 23590 states have (on average 1.1398050021195423) internal successors, (26888), 23591 states have internal predecessors, (26888), 0 states have call successors, (0), 0 states 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 07:40:54,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23592 states to 23592 states and 26888 transitions. [2022-01-11 07:40:54,881 INFO L78 Accepts]: Start accepts. Automaton has 23592 states and 26888 transitions. Word has length 196 [2022-01-11 07:40:54,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:54,882 INFO L470 AbstractCegarLoop]: Abstraction has 23592 states and 26888 transitions. [2022-01-11 07:40:54,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states 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 07:40:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 23592 states and 26888 transitions. [2022-01-11 07:40:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:40:54,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:54,892 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:54,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-11 07:40:54,893 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:54,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1219471349, now seen corresponding path program 1 times [2022-01-11 07:40:54,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:54,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238741340] [2022-01-11 07:40:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:54,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-11 07:40:54,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:54,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238741340] [2022-01-11 07:40:54,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238741340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:54,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:54,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:40:54,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258575085] [2022-01-11 07:40:54,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:54,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:40:54,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:54,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:40:54,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:40:54,928 INFO L87 Difference]: Start difference. First operand 23592 states and 26888 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 07:40:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:40:56,629 INFO L93 Difference]: Finished difference Result 38918 states and 44532 transitions. [2022-01-11 07:40:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:40:56,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 198 [2022-01-11 07:40:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:40:56,661 INFO L225 Difference]: With dead ends: 38918 [2022-01-11 07:40:56,661 INFO L226 Difference]: Without dead ends: 24440 [2022-01-11 07:40:56,671 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 07:40:56,672 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 328 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:40:56,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 944 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:40:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24440 states. [2022-01-11 07:40:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24440 to 23592. [2022-01-11 07:40:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23592 states, 23590 states have (on average 1.1255616786774056) internal successors, (26552), 23591 states have internal predecessors, (26552), 0 states have call successors, (0), 0 states 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 07:40:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23592 states to 23592 states and 26552 transitions. [2022-01-11 07:40:58,374 INFO L78 Accepts]: Start accepts. Automaton has 23592 states and 26552 transitions. Word has length 198 [2022-01-11 07:40:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:40:58,374 INFO L470 AbstractCegarLoop]: Abstraction has 23592 states and 26552 transitions. [2022-01-11 07:40:58,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 07:40:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 23592 states and 26552 transitions. [2022-01-11 07:40:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:40:58,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:40:58,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:40:58,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-11 07:40:58,385 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-11 07:40:58,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:40:58,386 INFO L85 PathProgramCache]: Analyzing trace with hash -305372586, now seen corresponding path program 1 times [2022-01-11 07:40:58,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:40:58,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522254469] [2022-01-11 07:40:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:40:58,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:40:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:40:58,459 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-11 07:40:58,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:40:58,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522254469] [2022-01-11 07:40:58,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522254469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:40:58,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:40:58,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:40:58,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017619515] [2022-01-11 07:40:58,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:40:58,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:40:58,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:40:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:40:58,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:40:58,461 INFO L87 Difference]: Start difference. First operand 23592 states and 26552 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)