/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/systemc/mem_slave_tlm.3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:16:16,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:16:16,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:16:16,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 00:16:17,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:16:17,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:16:17,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:16:17,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:16:17,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:16:17,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:16:17,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:16:17,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:16:17,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:16:17,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:16:17,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:16:17,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:16:17,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:16:17,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:16:17,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:16:17,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:16:17,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:16:17,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:16:17,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:16:17,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:16:17,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:16:17,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:16:17,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:16:17,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:16:17,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:16:17,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:16:17,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:16:17,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:16:17,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:16:17,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:16:17,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:16:17,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:16:17,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:16:17,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:16:17,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:16:17,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:16:17,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:16:17,075 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:16:17,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:16:17,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:16:17,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:16:17,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:16:17,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:16:17,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:16:17,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:16:17,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:16:17,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:16:17,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:16:17,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:16:17,077 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:16:17,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:16:17,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:16:17,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:16:17,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:16:17,079 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:16:17,080 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:16:17,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:16:17,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:16:17,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:16:17,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:16:17,283 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:16:17,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/mem_slave_tlm.3.cil.c [2022-01-11 00:16:17,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce87f02b8/1ca42e9d68194bbaa1c525075c22346c/FLAG49e0bab4f [2022-01-11 00:16:17,701 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:16:17,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.3.cil.c [2022-01-11 00:16:17,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce87f02b8/1ca42e9d68194bbaa1c525075c22346c/FLAG49e0bab4f [2022-01-11 00:16:18,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce87f02b8/1ca42e9d68194bbaa1c525075c22346c [2022-01-11 00:16:18,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:16:18,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:16:18,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:16:18,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:16:18,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:16:18,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14898e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18, skipping insertion in model container [2022-01-11 00:16:18,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:16:18,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:16:18,295 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.3.cil.c[646,659] [2022-01-11 00:16:18,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:16:18,434 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:16:18,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/mem_slave_tlm.3.cil.c[646,659] [2022-01-11 00:16:18,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:16:18,529 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:16:18,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18 WrapperNode [2022-01-11 00:16:18,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:16:18,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:16:18,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:16:18,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:16:18,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,591 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 873 [2022-01-11 00:16:18,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:16:18,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:16:18,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:16:18,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:16:18,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:16:18,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:16:18,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:16:18,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:16:18,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (1/1) ... [2022-01-11 00:16:18,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:16:18,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:16:18,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 00:16:18,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 00:16:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:16:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:16:18,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:16:18,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:16:18,801 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:16:18,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:16:19,314 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:16:19,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:16:19,321 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2022-01-11 00:16:19,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:19 BoogieIcfgContainer [2022-01-11 00:16:19,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:16:19,323 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:16:19,323 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:16:19,335 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:16:19,338 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:19" (1/1) ... [2022-01-11 00:16:19,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:16:19 BasicIcfg [2022-01-11 00:16:19,543 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:16:19,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:16:19,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:16:19,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:16:19,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:16:18" (1/4) ... [2022-01-11 00:16:19,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9abe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:16:19, skipping insertion in model container [2022-01-11 00:16:19,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:16:18" (2/4) ... [2022-01-11 00:16:19,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9abe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:16:19, skipping insertion in model container [2022-01-11 00:16:19,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:16:19" (3/4) ... [2022-01-11 00:16:19,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9abe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:16:19, skipping insertion in model container [2022-01-11 00:16:19,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:16:19" (4/4) ... [2022-01-11 00:16:19,549 INFO L111 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.3.cil.cTransformedIcfg [2022-01-11 00:16:19,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:16:19,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 00:16:19,598 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:16:19,604 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 00:16:19,604 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 00:16:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 275 states have (on average 1.8436363636363637) internal successors, (507), 280 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 00:16:19,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:19,634 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] [2022-01-11 00:16:19,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:19,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 649836994, now seen corresponding path program 1 times [2022-01-11 00:16:19,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:19,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974700675] [2022-01-11 00:16:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:19,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:19,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974700675] [2022-01-11 00:16:19,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974700675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:19,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:19,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:19,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582649277] [2022-01-11 00:16:19,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:19,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:19,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:19,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:19,916 INFO L87 Difference]: Start difference. First operand has 281 states, 275 states have (on average 1.8436363636363637) internal successors, (507), 280 states have internal predecessors, (507), 0 states have call successors, (0), 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 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:20,225 INFO L93 Difference]: Finished difference Result 736 states and 1327 transitions. [2022-01-11 00:16:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-01-11 00:16:20,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:20,244 INFO L225 Difference]: With dead ends: 736 [2022-01-11 00:16:20,245 INFO L226 Difference]: Without dead ends: 452 [2022-01-11 00:16:20,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,253 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 262 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:20,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 779 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:16:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-01-11 00:16:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 436. [2022-01-11 00:16:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.591647331786543) internal successors, (686), 435 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 686 transitions. [2022-01-11 00:16:20,320 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 686 transitions. Word has length 28 [2022-01-11 00:16:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:20,321 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 686 transitions. [2022-01-11 00:16:20,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 686 transitions. [2022-01-11 00:16:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:16:20,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:20,326 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] [2022-01-11 00:16:20,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:16:20,326 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:20,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1952844091, now seen corresponding path program 1 times [2022-01-11 00:16:20,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:20,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391904382] [2022-01-11 00:16:20,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:20,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:20,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:20,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391904382] [2022-01-11 00:16:20,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391904382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:20,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:20,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:20,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908701185] [2022-01-11 00:16:20,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:20,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:20,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:20,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:20,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,436 INFO L87 Difference]: Start difference. First operand 436 states and 686 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:20,522 INFO L93 Difference]: Finished difference Result 1235 states and 1934 transitions. [2022-01-11 00:16:20,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:20,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-11 00:16:20,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:20,525 INFO L225 Difference]: With dead ends: 1235 [2022-01-11 00:16:20,525 INFO L226 Difference]: Without dead ends: 810 [2022-01-11 00:16:20,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,531 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 369 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:20,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 821 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:20,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-01-11 00:16:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 796. [2022-01-11 00:16:20,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 791 states have (on average 1.5335018963337548) internal successors, (1213), 795 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1213 transitions. [2022-01-11 00:16:20,562 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1213 transitions. Word has length 38 [2022-01-11 00:16:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:20,562 INFO L470 AbstractCegarLoop]: Abstraction has 796 states and 1213 transitions. [2022-01-11 00:16:20,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1213 transitions. [2022-01-11 00:16:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 00:16:20,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:20,565 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] [2022-01-11 00:16:20,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:16:20,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:20,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash 398336383, now seen corresponding path program 1 times [2022-01-11 00:16:20,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:20,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122025149] [2022-01-11 00:16:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:20,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:20,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:20,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122025149] [2022-01-11 00:16:20,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122025149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:20,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:20,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:20,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523225944] [2022-01-11 00:16:20,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:20,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:20,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:20,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,627 INFO L87 Difference]: Start difference. First operand 796 states and 1213 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:20,764 INFO L93 Difference]: Finished difference Result 2097 states and 3247 transitions. [2022-01-11 00:16:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-11 00:16:20,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:20,769 INFO L225 Difference]: With dead ends: 2097 [2022-01-11 00:16:20,769 INFO L226 Difference]: Without dead ends: 1313 [2022-01-11 00:16:20,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,770 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 319 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:20,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 992 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-01-11 00:16:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1291. [2022-01-11 00:16:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1286 states have (on average 1.5715396578538103) internal successors, (2021), 1290 states have internal predecessors, (2021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 2021 transitions. [2022-01-11 00:16:20,801 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 2021 transitions. Word has length 38 [2022-01-11 00:16:20,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:20,801 INFO L470 AbstractCegarLoop]: Abstraction has 1291 states and 2021 transitions. [2022-01-11 00:16:20,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 2021 transitions. [2022-01-11 00:16:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 00:16:20,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:20,803 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] [2022-01-11 00:16:20,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:16:20,803 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:20,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1144710750, now seen corresponding path program 1 times [2022-01-11 00:16:20,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:20,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910822360] [2022-01-11 00:16:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:20,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:20,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:20,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910822360] [2022-01-11 00:16:20,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910822360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:20,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:20,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:20,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880325434] [2022-01-11 00:16:20,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:20,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:20,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,860 INFO L87 Difference]: Start difference. First operand 1291 states and 2021 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:20,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:20,934 INFO L93 Difference]: Finished difference Result 3227 states and 5059 transitions. [2022-01-11 00:16:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:20,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-11 00:16:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:20,943 INFO L225 Difference]: With dead ends: 3227 [2022-01-11 00:16:20,944 INFO L226 Difference]: Without dead ends: 1957 [2022-01-11 00:16:20,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:20,952 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 346 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:20,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 805 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2022-01-11 00:16:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1923. [2022-01-11 00:16:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1918 states have (on average 1.5698644421272159) internal successors, (3011), 1922 states have internal predecessors, (3011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 3011 transitions. [2022-01-11 00:16:21,002 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 3011 transitions. Word has length 39 [2022-01-11 00:16:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:21,002 INFO L470 AbstractCegarLoop]: Abstraction has 1923 states and 3011 transitions. [2022-01-11 00:16:21,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 3011 transitions. [2022-01-11 00:16:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 00:16:21,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:21,004 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:21,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:16:21,004 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:21,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1555420332, now seen corresponding path program 1 times [2022-01-11 00:16:21,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:21,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729123814] [2022-01-11 00:16:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:21,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:21,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:21,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729123814] [2022-01-11 00:16:21,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729123814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:21,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:21,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:21,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621314350] [2022-01-11 00:16:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:21,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:21,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,064 INFO L87 Difference]: Start difference. First operand 1923 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:21,147 INFO L93 Difference]: Finished difference Result 4768 states and 7500 transitions. [2022-01-11 00:16:21,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:21,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-11 00:16:21,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:21,156 INFO L225 Difference]: With dead ends: 4768 [2022-01-11 00:16:21,156 INFO L226 Difference]: Without dead ends: 2866 [2022-01-11 00:16:21,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,160 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 407 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:21,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1049 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2022-01-11 00:16:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2700. [2022-01-11 00:16:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2695 states have (on average 1.5617810760667903) internal successors, (4209), 2699 states have internal predecessors, (4209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4209 transitions. [2022-01-11 00:16:21,255 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4209 transitions. Word has length 47 [2022-01-11 00:16:21,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:21,255 INFO L470 AbstractCegarLoop]: Abstraction has 2700 states and 4209 transitions. [2022-01-11 00:16:21,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4209 transitions. [2022-01-11 00:16:21,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 00:16:21,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:21,256 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] [2022-01-11 00:16:21,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:16:21,256 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash 966585616, now seen corresponding path program 1 times [2022-01-11 00:16:21,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:21,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065790224] [2022-01-11 00:16:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:21,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:21,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:21,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065790224] [2022-01-11 00:16:21,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065790224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:21,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:21,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:21,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325500916] [2022-01-11 00:16:21,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:21,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:21,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:21,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:21,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,288 INFO L87 Difference]: Start difference. First operand 2700 states and 4209 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 00:16:21,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:21,384 INFO L93 Difference]: Finished difference Result 5615 states and 8777 transitions. [2022-01-11 00:16:21,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:21,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 00:16:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:21,393 INFO L225 Difference]: With dead ends: 5615 [2022-01-11 00:16:21,393 INFO L226 Difference]: Without dead ends: 2985 [2022-01-11 00:16:21,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,396 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 364 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:21,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 710 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-01-11 00:16:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2875. [2022-01-11 00:16:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2870 states have (on average 1.5540069686411149) internal successors, (4460), 2874 states have internal predecessors, (4460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4460 transitions. [2022-01-11 00:16:21,471 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4460 transitions. Word has length 52 [2022-01-11 00:16:21,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:21,471 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4460 transitions. [2022-01-11 00:16:21,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 00:16:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4460 transitions. [2022-01-11 00:16:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 00:16:21,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:21,472 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] [2022-01-11 00:16:21,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:16:21,472 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:21,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:21,473 INFO L85 PathProgramCache]: Analyzing trace with hash -648177159, now seen corresponding path program 1 times [2022-01-11 00:16:21,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:21,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673061304] [2022-01-11 00:16:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:21,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:21,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673061304] [2022-01-11 00:16:21,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673061304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:21,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:21,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:21,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988251236] [2022-01-11 00:16:21,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:21,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:21,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,521 INFO L87 Difference]: Start difference. First operand 2875 states and 4460 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:21,782 INFO L93 Difference]: Finished difference Result 6898 states and 10792 transitions. [2022-01-11 00:16:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:21,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-11 00:16:21,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:21,793 INFO L225 Difference]: With dead ends: 6898 [2022-01-11 00:16:21,793 INFO L226 Difference]: Without dead ends: 4093 [2022-01-11 00:16:21,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,798 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 356 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:21,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 774 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:16:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2022-01-11 00:16:21,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 4006. [2022-01-11 00:16:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4006 states, 4001 states have (on average 1.540614846288428) internal successors, (6164), 4005 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4006 states to 4006 states and 6164 transitions. [2022-01-11 00:16:21,904 INFO L78 Accepts]: Start accepts. Automaton has 4006 states and 6164 transitions. Word has length 59 [2022-01-11 00:16:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:21,904 INFO L470 AbstractCegarLoop]: Abstraction has 4006 states and 6164 transitions. [2022-01-11 00:16:21,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 4006 states and 6164 transitions. [2022-01-11 00:16:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 00:16:21,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:21,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:16:21,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:16:21,906 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:21,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1262160566, now seen corresponding path program 1 times [2022-01-11 00:16:21,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:21,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449024935] [2022-01-11 00:16:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:21,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:21,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:21,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449024935] [2022-01-11 00:16:21,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449024935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:21,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:21,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:21,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001436013] [2022-01-11 00:16:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:21,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:21,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:21,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:21,972 INFO L87 Difference]: Start difference. First operand 4006 states and 6164 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:22,133 INFO L93 Difference]: Finished difference Result 7942 states and 12244 transitions. [2022-01-11 00:16:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:22,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 00:16:22,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:22,146 INFO L225 Difference]: With dead ends: 7942 [2022-01-11 00:16:22,147 INFO L226 Difference]: Without dead ends: 4006 [2022-01-11 00:16:22,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:22,152 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 341 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:22,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 439 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2022-01-11 00:16:22,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 4006. [2022-01-11 00:16:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4006 states, 4001 states have (on average 1.5181204698825295) internal successors, (6074), 4005 states have internal predecessors, (6074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4006 states to 4006 states and 6074 transitions. [2022-01-11 00:16:22,281 INFO L78 Accepts]: Start accepts. Automaton has 4006 states and 6074 transitions. Word has length 61 [2022-01-11 00:16:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:22,282 INFO L470 AbstractCegarLoop]: Abstraction has 4006 states and 6074 transitions. [2022-01-11 00:16:22,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4006 states and 6074 transitions. [2022-01-11 00:16:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 00:16:22,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:22,284 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] [2022-01-11 00:16:22,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:16:22,284 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:22,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:22,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1460532729, now seen corresponding path program 1 times [2022-01-11 00:16:22,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:22,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083952010] [2022-01-11 00:16:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:22,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:22,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:22,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083952010] [2022-01-11 00:16:22,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083952010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:22,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:22,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:22,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653526874] [2022-01-11 00:16:22,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:22,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:22,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:22,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:22,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:22,326 INFO L87 Difference]: Start difference. First operand 4006 states and 6074 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:22,604 INFO L93 Difference]: Finished difference Result 9038 states and 13750 transitions. [2022-01-11 00:16:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-01-11 00:16:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:22,617 INFO L225 Difference]: With dead ends: 9038 [2022-01-11 00:16:22,617 INFO L226 Difference]: Without dead ends: 5102 [2022-01-11 00:16:22,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:22,622 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 239 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:22,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 849 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2022-01-11 00:16:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5022. [2022-01-11 00:16:22,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 5017 states have (on average 1.4833565876021526) internal successors, (7442), 5021 states have internal predecessors, (7442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 7442 transitions. [2022-01-11 00:16:22,754 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 7442 transitions. Word has length 62 [2022-01-11 00:16:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:22,755 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 7442 transitions. [2022-01-11 00:16:22,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 7442 transitions. [2022-01-11 00:16:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 00:16:22,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:22,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:16:22,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:16:22,756 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:22,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash 694444557, now seen corresponding path program 1 times [2022-01-11 00:16:22,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:22,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876692186] [2022-01-11 00:16:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:22,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:22,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:22,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876692186] [2022-01-11 00:16:22,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876692186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:22,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:22,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:16:22,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684110195] [2022-01-11 00:16:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:22,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:16:22,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:16:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:16:22,811 INFO L87 Difference]: Start difference. First operand 5022 states and 7442 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:23,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:23,396 INFO L93 Difference]: Finished difference Result 24219 states and 35944 transitions. [2022-01-11 00:16:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:16:23,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 00:16:23,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:23,442 INFO L225 Difference]: With dead ends: 24219 [2022-01-11 00:16:23,442 INFO L226 Difference]: Without dead ends: 19540 [2022-01-11 00:16:23,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:16:23,453 INFO L933 BasicCegarLoop]: 1378 mSDtfsCounter, 1508 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 4337 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:23,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 4337 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19540 states. [2022-01-11 00:16:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19540 to 6962. [2022-01-11 00:16:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6957 states have (on average 1.4799482535575679) internal successors, (10296), 6961 states have internal predecessors, (10296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 10296 transitions. [2022-01-11 00:16:23,803 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 10296 transitions. Word has length 64 [2022-01-11 00:16:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:23,803 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 10296 transitions. [2022-01-11 00:16:23,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 10296 transitions. [2022-01-11 00:16:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 00:16:23,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:23,805 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] [2022-01-11 00:16:23,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:16:23,806 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:23,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash 82561897, now seen corresponding path program 1 times [2022-01-11 00:16:23,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:23,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786114393] [2022-01-11 00:16:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:23,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:23,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:23,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786114393] [2022-01-11 00:16:23,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786114393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:23,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:23,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 00:16:23,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248973566] [2022-01-11 00:16:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:23,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 00:16:23,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 00:16:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-11 00:16:23,957 INFO L87 Difference]: Start difference. First operand 6962 states and 10296 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:25,557 INFO L93 Difference]: Finished difference Result 32318 states and 47883 transitions. [2022-01-11 00:16:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-11 00:16:25,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-11 00:16:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:25,601 INFO L225 Difference]: With dead ends: 32318 [2022-01-11 00:16:25,602 INFO L226 Difference]: Without dead ends: 25377 [2022-01-11 00:16:25,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-01-11 00:16:25,617 INFO L933 BasicCegarLoop]: 1835 mSDtfsCounter, 3382 mSDsluCounter, 8496 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 10331 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:25,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3382 Valid, 10331 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 00:16:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25377 states. [2022-01-11 00:16:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25377 to 4381. [2022-01-11 00:16:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4376 states have (on average 1.4684643510054844) internal successors, (6426), 4380 states have internal predecessors, (6426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6426 transitions. [2022-01-11 00:16:25,985 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6426 transitions. Word has length 65 [2022-01-11 00:16:25,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:25,985 INFO L470 AbstractCegarLoop]: Abstraction has 4381 states and 6426 transitions. [2022-01-11 00:16:25,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6426 transitions. [2022-01-11 00:16:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-11 00:16:25,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:25,987 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2022-01-11 00:16:25,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 00:16:25,987 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash -610394531, now seen corresponding path program 1 times [2022-01-11 00:16:25,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:25,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086432638] [2022-01-11 00:16:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:25,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:26,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:26,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086432638] [2022-01-11 00:16:26,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086432638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:26,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:26,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:26,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135857044] [2022-01-11 00:16:26,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:26,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:26,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:26,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:26,014 INFO L87 Difference]: Start difference. First operand 4381 states and 6426 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 00:16:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:26,356 INFO L93 Difference]: Finished difference Result 10754 states and 15714 transitions. [2022-01-11 00:16:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:26,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2022-01-11 00:16:26,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:26,374 INFO L225 Difference]: With dead ends: 10754 [2022-01-11 00:16:26,374 INFO L226 Difference]: Without dead ends: 6282 [2022-01-11 00:16:26,378 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 00:16:26,379 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 280 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:26,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 1041 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2022-01-11 00:16:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 6227. [2022-01-11 00:16:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6227 states, 6222 states have (on average 1.4532304725168756) internal successors, (9042), 6226 states have internal predecessors, (9042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6227 states to 6227 states and 9042 transitions. [2022-01-11 00:16:26,696 INFO L78 Accepts]: Start accepts. Automaton has 6227 states and 9042 transitions. Word has length 90 [2022-01-11 00:16:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:26,696 INFO L470 AbstractCegarLoop]: Abstraction has 6227 states and 9042 transitions. [2022-01-11 00:16:26,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 00:16:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6227 states and 9042 transitions. [2022-01-11 00:16:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-11 00:16:26,698 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:26,698 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2022-01-11 00:16:26,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 00:16:26,698 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:26,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:26,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2089205243, now seen corresponding path program 1 times [2022-01-11 00:16:26,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:26,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119250341] [2022-01-11 00:16:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:26,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:26,745 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:16:26,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:26,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119250341] [2022-01-11 00:16:26,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119250341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:26,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:26,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:26,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317333562] [2022-01-11 00:16:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:26,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:26,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:26,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:26,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:26,746 INFO L87 Difference]: Start difference. First operand 6227 states and 9042 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 00:16:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:27,045 INFO L93 Difference]: Finished difference Result 10800 states and 15566 transitions. [2022-01-11 00:16:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:27,046 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 98 [2022-01-11 00:16:27,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:27,053 INFO L225 Difference]: With dead ends: 10800 [2022-01-11 00:16:27,053 INFO L226 Difference]: Without dead ends: 4502 [2022-01-11 00:16:27,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:27,061 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 336 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:27,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 538 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-01-11 00:16:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4436. [2022-01-11 00:16:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4431 states have (on average 1.36944256375536) internal successors, (6068), 4435 states have internal predecessors, (6068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 6068 transitions. [2022-01-11 00:16:27,387 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 6068 transitions. Word has length 98 [2022-01-11 00:16:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:27,388 INFO L470 AbstractCegarLoop]: Abstraction has 4436 states and 6068 transitions. [2022-01-11 00:16:27,388 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 00:16:27,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 6068 transitions. [2022-01-11 00:16:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 00:16:27,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:27,389 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:27,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 00:16:27,389 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1818876313, now seen corresponding path program 1 times [2022-01-11 00:16:27,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:27,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282577022] [2022-01-11 00:16:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:27,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-11 00:16:27,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:27,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282577022] [2022-01-11 00:16:27,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282577022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:27,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:27,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:27,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151148970] [2022-01-11 00:16:27,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:27,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:27,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:27,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:27,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:27,429 INFO L87 Difference]: Start difference. First operand 4436 states and 6068 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:27,695 INFO L93 Difference]: Finished difference Result 7901 states and 10831 transitions. [2022-01-11 00:16:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:27,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-01-11 00:16:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:27,701 INFO L225 Difference]: With dead ends: 7901 [2022-01-11 00:16:27,701 INFO L226 Difference]: Without dead ends: 3497 [2022-01-11 00:16:27,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:27,706 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 261 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:27,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 419 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2022-01-11 00:16:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3193. [2022-01-11 00:16:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3193 states, 3188 states have (on average 1.3346925972396486) internal successors, (4255), 3192 states have internal predecessors, (4255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:27,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 4255 transitions. [2022-01-11 00:16:27,955 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 4255 transitions. Word has length 100 [2022-01-11 00:16:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:27,955 INFO L470 AbstractCegarLoop]: Abstraction has 3193 states and 4255 transitions. [2022-01-11 00:16:27,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 4255 transitions. [2022-01-11 00:16:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-11 00:16:27,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:27,956 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:27,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 00:16:27,957 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:27,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1817863419, now seen corresponding path program 1 times [2022-01-11 00:16:27,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:27,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587842789] [2022-01-11 00:16:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:27,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 00:16:27,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:27,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587842789] [2022-01-11 00:16:27,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587842789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:27,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:27,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:27,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134581215] [2022-01-11 00:16:27,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:27,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:27,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:27,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:27,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:27,996 INFO L87 Difference]: Start difference. First operand 3193 states and 4255 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 00:16:28,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:28,229 INFO L93 Difference]: Finished difference Result 6191 states and 8290 transitions. [2022-01-11 00:16:28,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:28,230 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 100 [2022-01-11 00:16:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:28,233 INFO L225 Difference]: With dead ends: 6191 [2022-01-11 00:16:28,234 INFO L226 Difference]: Without dead ends: 3187 [2022-01-11 00:16:28,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:28,236 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 331 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:28,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 531 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2022-01-11 00:16:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3175. [2022-01-11 00:16:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 3170 states have (on average 1.2933753943217665) internal successors, (4100), 3174 states have internal predecessors, (4100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:28,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4100 transitions. [2022-01-11 00:16:28,419 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4100 transitions. Word has length 100 [2022-01-11 00:16:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:28,419 INFO L470 AbstractCegarLoop]: Abstraction has 3175 states and 4100 transitions. [2022-01-11 00:16:28,420 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 00:16:28,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4100 transitions. [2022-01-11 00:16:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-11 00:16:28,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:28,420 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-11 00:16:28,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 00:16:28,421 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:28,421 INFO L85 PathProgramCache]: Analyzing trace with hash -550558156, now seen corresponding path program 1 times [2022-01-11 00:16:28,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745542119] [2022-01-11 00:16:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:28,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-11 00:16:28,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745542119] [2022-01-11 00:16:28,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745542119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:28,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:28,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:16:28,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597631453] [2022-01-11 00:16:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:28,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:16:28,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:16:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:28,456 INFO L87 Difference]: Start difference. First operand 3175 states and 4100 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 00:16:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:28,645 INFO L93 Difference]: Finished difference Result 3193 states and 4114 transitions. [2022-01-11 00:16:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:16:28,646 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 101 [2022-01-11 00:16:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:28,651 INFO L225 Difference]: With dead ends: 3193 [2022-01-11 00:16:28,651 INFO L226 Difference]: Without dead ends: 3189 [2022-01-11 00:16:28,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:16:28,652 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 223 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:28,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 686 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:16:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2022-01-11 00:16:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3175. [2022-01-11 00:16:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 3170 states have (on average 1.2864353312302839) internal successors, (4078), 3174 states have internal predecessors, (4078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:28,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4078 transitions. [2022-01-11 00:16:28,863 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4078 transitions. Word has length 101 [2022-01-11 00:16:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:28,864 INFO L470 AbstractCegarLoop]: Abstraction has 3175 states and 4078 transitions. [2022-01-11 00:16:28,864 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 00:16:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4078 transitions. [2022-01-11 00:16:28,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-11 00:16:28,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:28,866 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2022-01-11 00:16:28,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 00:16:28,866 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 611720245, now seen corresponding path program 1 times [2022-01-11 00:16:28,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:28,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044129233] [2022-01-11 00:16:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:28,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-11 00:16:28,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:28,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044129233] [2022-01-11 00:16:28,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044129233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:16:28,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:16:28,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:16:28,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634446557] [2022-01-11 00:16:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:16:28,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:16:28,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:28,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:16:28,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:16:28,928 INFO L87 Difference]: Start difference. First operand 3175 states and 4078 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:30,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:30,038 INFO L93 Difference]: Finished difference Result 15354 states and 19810 transitions. [2022-01-11 00:16:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 00:16:30,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 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 161 [2022-01-11 00:16:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:30,055 INFO L225 Difference]: With dead ends: 15354 [2022-01-11 00:16:30,055 INFO L226 Difference]: Without dead ends: 12362 [2022-01-11 00:16:30,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 00:16:30,062 INFO L933 BasicCegarLoop]: 1208 mSDtfsCounter, 2141 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:30,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2141 Valid, 4097 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:16:30,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12362 states. [2022-01-11 00:16:30,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12362 to 3177. [2022-01-11 00:16:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 3172 states have (on average 1.2837326607818411) internal successors, (4072), 3176 states have internal predecessors, (4072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4072 transitions. [2022-01-11 00:16:30,350 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4072 transitions. Word has length 161 [2022-01-11 00:16:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:30,350 INFO L470 AbstractCegarLoop]: Abstraction has 3177 states and 4072 transitions. [2022-01-11 00:16:30,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4072 transitions. [2022-01-11 00:16:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-11 00:16:30,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:30,352 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2022-01-11 00:16:30,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 00:16:30,352 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:30,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1979782895, now seen corresponding path program 1 times [2022-01-11 00:16:30,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:30,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151864682] [2022-01-11 00:16:30,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:30,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 00:16:30,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:30,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151864682] [2022-01-11 00:16:30,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151864682] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 00:16:30,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202773806] [2022-01-11 00:16:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:30,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 00:16:30,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:16:30,528 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 00:16:30,547 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 00:16:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:30,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-11 00:16:30,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 00:16:31,079 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 00:16:31,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 00:16:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 46 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-11 00:16:32,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202773806] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 00:16:32,124 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 00:16:32,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 12] total 27 [2022-01-11 00:16:32,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723934604] [2022-01-11 00:16:32,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 00:16:32,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-11 00:16:32,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-11 00:16:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2022-01-11 00:16:32,126 INFO L87 Difference]: Start difference. First operand 3177 states and 4072 transitions. Second operand has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:16:44,613 INFO L93 Difference]: Finished difference Result 47245 states and 61287 transitions. [2022-01-11 00:16:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-01-11 00:16:44,613 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 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 163 [2022-01-11 00:16:44,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:16:44,666 INFO L225 Difference]: With dead ends: 47245 [2022-01-11 00:16:44,667 INFO L226 Difference]: Without dead ends: 44273 [2022-01-11 00:16:44,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 424 SyntacticMatches, 3 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26823 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=6868, Invalid=56384, Unknown=0, NotChecked=0, Total=63252 [2022-01-11 00:16:44,689 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 29837 mSDsluCounter, 37279 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29837 SdHoareTripleChecker+Valid, 41032 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:16:44,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29837 Valid, 41032 Invalid, 4212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [925 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-11 00:16:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44273 states. [2022-01-11 00:16:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44273 to 6319. [2022-01-11 00:16:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6319 states, 6314 states have (on average 1.3007602153943618) internal successors, (8213), 6318 states have internal predecessors, (8213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6319 states to 6319 states and 8213 transitions. [2022-01-11 00:16:45,634 INFO L78 Accepts]: Start accepts. Automaton has 6319 states and 8213 transitions. Word has length 163 [2022-01-11 00:16:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:16:45,635 INFO L470 AbstractCegarLoop]: Abstraction has 6319 states and 8213 transitions. [2022-01-11 00:16:45,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:16:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6319 states and 8213 transitions. [2022-01-11 00:16:45,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-01-11 00:16:45,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:16:45,643 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-11 00:16:45,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-11 00:16:45,859 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,SelfDestructingSolverStorable17 [2022-01-11 00:16:45,859 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:16:45,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:16:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1179873723, now seen corresponding path program 1 times [2022-01-11 00:16:45,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:16:45,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670269545] [2022-01-11 00:16:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:45,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:16:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 414 proven. 51 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-11 00:16:46,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:16:46,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670269545] [2022-01-11 00:16:46,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670269545] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 00:16:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600618658] [2022-01-11 00:16:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:16:46,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 00:16:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:16:46,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 00:16:46,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 00:16:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:16:46,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-11 00:16:46,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 00:16:47,412 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 414 proven. 51 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-11 00:16:47,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 00:16:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 418 proven. 47 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-11 00:16:48,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600618658] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 00:16:48,125 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 00:16:48,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2022-01-11 00:16:48,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834845516] [2022-01-11 00:16:48,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 00:16:48,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-11 00:16:48,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:16:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-11 00:16:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2022-01-11 00:16:48,127 INFO L87 Difference]: Start difference. First operand 6319 states and 8213 transitions. Second operand has 29 states, 29 states have (on average 19.0) internal successors, (551), 29 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:17:01,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:17:01,424 INFO L93 Difference]: Finished difference Result 45499 states and 58503 transitions. [2022-01-11 00:17:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2022-01-11 00:17:01,425 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 19.0) internal successors, (551), 29 states have internal predecessors, (551), 0 states have call successors, (0), 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 362 [2022-01-11 00:17:01,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:17:01,469 INFO L225 Difference]: With dead ends: 45499 [2022-01-11 00:17:01,470 INFO L226 Difference]: Without dead ends: 39385 [2022-01-11 00:17:01,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1101 GetRequests, 865 SyntacticMatches, 2 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24256 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=7571, Invalid=47889, Unknown=0, NotChecked=0, Total=55460 [2022-01-11 00:17:01,484 INFO L933 BasicCegarLoop]: 1212 mSDtfsCounter, 18675 mSDsluCounter, 24200 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18675 SdHoareTripleChecker+Valid, 25412 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:17:01,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18675 Valid, 25412 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 00:17:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39385 states. [2022-01-11 00:17:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39385 to 6941. [2022-01-11 00:17:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6936 states have (on average 1.2817185697808535) internal successors, (8890), 6940 states have internal predecessors, (8890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:17:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 8890 transitions. [2022-01-11 00:17:02,758 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 8890 transitions. Word has length 362 [2022-01-11 00:17:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:17:02,759 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 8890 transitions. [2022-01-11 00:17:02,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 19.0) internal successors, (551), 29 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:17:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 8890 transitions. [2022-01-11 00:17:02,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-01-11 00:17:02,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:17:02,764 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-11 00:17:02,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 00:17:02,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 00:17:02,998 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 00:17:02,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:17:02,998 INFO L85 PathProgramCache]: Analyzing trace with hash 851230487, now seen corresponding path program 1 times [2022-01-11 00:17:02,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:17:02,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425094985] [2022-01-11 00:17:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:17:02,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:17:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:17:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 156 proven. 316 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-11 00:17:03,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:17:03,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425094985] [2022-01-11 00:17:03,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425094985] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 00:17:03,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002214337] [2022-01-11 00:17:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:17:03,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 00:17:03,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:17:03,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 00:17:03,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 00:17:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:17:03,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-11 00:17:03,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 00:17:04,119 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 355 proven. 4 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-01-11 00:17:04,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 00:17:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 49 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-01-11 00:17:05,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002214337] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 00:17:05,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 00:17:05,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 17] total 32 [2022-01-11 00:17:05,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562788948] [2022-01-11 00:17:05,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 00:17:05,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-11 00:17:05,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:17:05,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-11 00:17:05,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=877, Unknown=0, NotChecked=0, Total=992 [2022-01-11 00:17:05,326 INFO L87 Difference]: Start difference. First operand 6941 states and 8890 transitions. Second operand has 32 states, 32 states have (on average 22.09375) internal successors, (707), 32 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)