/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:32:57,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:32:57,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:32:57,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 19:32:57,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 19:32:57,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 19:32:57,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 19:32:57,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 19:32:57,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 19:32:57,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 19:32:57,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 19:32:57,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 19:32:57,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:32:57,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:32:57,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:32:57,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:32:57,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:32:57,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:32:57,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:32:57,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:32:57,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:32:57,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:32:57,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:32:57,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:32:58,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 19:32:58,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:32:58,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:32:58,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:32:58,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:32:58,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:32:58,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:32:58,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:32:58,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:32:58,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:32:58,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:32:58,028 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:32:58,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:32:58,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:32:58,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:32:58,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:32:58,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:32:58,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:32:58,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:32:58,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:32:58,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:32:58,031 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:32:58,031 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:32:58,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:32:58,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:32:58,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:32:58,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:32:58,262 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:32:58,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c [2022-01-10 19:32:58,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c9a4984/731ef6295e7b4f3cb1bb689637633962/FLAG629d6820e [2022-01-10 19:32:59,003 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:32:59,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c [2022-01-10 19:32:59,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c9a4984/731ef6295e7b4f3cb1bb689637633962/FLAG629d6820e [2022-01-10 19:32:59,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03c9a4984/731ef6295e7b4f3cb1bb689637633962 [2022-01-10 19:32:59,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:32:59,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:32:59,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:32:59,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:32:59,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:32:59,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:32:59" (1/1) ... [2022-01-10 19:32:59,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a57916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:32:59, skipping insertion in model container [2022-01-10 19:32:59,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:32:59" (1/1) ... [2022-01-10 19:32:59,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:32:59,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:33:00,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c[382357,382370] [2022-01-10 19:33:00,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c[383339,383352] [2022-01-10 19:33:00,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:33:00,827 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:33:01,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c[382357,382370] [2022-01-10 19:33:01,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.09.cil-2.c[383339,383352] [2022-01-10 19:33:01,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:33:01,512 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:33:01,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01 WrapperNode [2022-01-10 19:33:01,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:33:01,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:33:01,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:33:01,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:33:01,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:01,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:01,951 INFO L137 Inliner]: procedures = 63, calls = 69, calls flagged for inlining = 64, calls inlined = 193, statements flattened = 15104 [2022-01-10 19:33:01,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:33:01,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:33:01,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:33:01,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:33:01,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:01,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:33:02,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:33:02,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:33:02,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:33:02,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (1/1) ... [2022-01-10 19:33:02,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:33:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:33:02,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 19:33:02,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 19:33:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:33:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:33:02,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:33:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:33:02,515 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:33:02,516 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:33:09,753 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:33:09,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:33:09,787 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2022-01-10 19:33:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:33:09 BoogieIcfgContainer [2022-01-10 19:33:09,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:33:09,795 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:33:09,795 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:33:09,797 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:33:09,800 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:33:09" (1/1) ... [2022-01-10 19:33:11,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:33:11 BasicIcfg [2022-01-10 19:33:11,058 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:33:11,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:33:11,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:33:11,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:33:11,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:32:59" (1/4) ... [2022-01-10 19:33:11,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:33:11, skipping insertion in model container [2022-01-10 19:33:11,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:33:01" (2/4) ... [2022-01-10 19:33:11,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:33:11, skipping insertion in model container [2022-01-10 19:33:11,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:33:09" (3/4) ... [2022-01-10 19:33:11,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:33:11, skipping insertion in model container [2022-01-10 19:33:11,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:33:11" (4/4) ... [2022-01-10 19:33:11,064 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.09.cil-2.cTransformedIcfg [2022-01-10 19:33:11,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:33:11,069 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:33:11,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:33:11,113 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 19:33:11,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:33:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:11,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:11,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:11,164 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1086950077, now seen corresponding path program 1 times [2022-01-10 19:33:11,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:11,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565544517] [2022-01-10 19:33:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:11,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:11,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:11,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:11,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565544517] [2022-01-10 19:33:11,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565544517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:11,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:11,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:11,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815990644] [2022-01-10 19:33:11,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:11,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:11,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:11,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:11,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:11,515 INFO L87 Difference]: Start difference. First operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 states have internal predecessors, (5872), 0 states have call successors, (0), 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 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:11,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:11,742 INFO L93 Difference]: Finished difference Result 7702 states and 13190 transitions. [2022-01-10 19:33:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:11,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:11,767 INFO L225 Difference]: With dead ends: 7702 [2022-01-10 19:33:11,767 INFO L226 Difference]: Without dead ends: 4280 [2022-01-10 19:33:11,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:11,778 INFO L933 BasicCegarLoop]: 5814 mSDtfsCounter, 5657 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:11,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5657 Valid, 7361 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:11,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2022-01-10 19:33:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4276. [2022-01-10 19:33:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6742335595600282) internal successors, (7154), 4275 states have internal predecessors, (7154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7154 transitions. [2022-01-10 19:33:11,910 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7154 transitions. Word has length 132 [2022-01-10 19:33:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:11,911 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7154 transitions. [2022-01-10 19:33:11,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7154 transitions. [2022-01-10 19:33:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:11,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:11,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:11,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:33:11,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash 498625757, now seen corresponding path program 1 times [2022-01-10 19:33:11,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:11,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499802929] [2022-01-10 19:33:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:11,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:12,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:12,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:12,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499802929] [2022-01-10 19:33:12,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499802929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:12,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:12,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:12,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444159283] [2022-01-10 19:33:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:12,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:12,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,050 INFO L87 Difference]: Start difference. First operand 4276 states and 7154 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:12,154 INFO L93 Difference]: Finished difference Result 6413 states and 10320 transitions. [2022-01-10 19:33:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:12,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:12,166 INFO L225 Difference]: With dead ends: 6413 [2022-01-10 19:33:12,166 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:12,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,181 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 5689 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 5702 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:12,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5689 Valid, 5702 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:12,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6723613386379592) internal successors, (7146), 4275 states have internal predecessors, (7146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7146 transitions. [2022-01-10 19:33:12,428 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7146 transitions. Word has length 132 [2022-01-10 19:33:12,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:12,429 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7146 transitions. [2022-01-10 19:33:12,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7146 transitions. [2022-01-10 19:33:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:12,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:12,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:12,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:33:12,444 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1463375613, now seen corresponding path program 1 times [2022-01-10 19:33:12,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:12,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962386619] [2022-01-10 19:33:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:12,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:12,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:12,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962386619] [2022-01-10 19:33:12,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962386619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:12,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:12,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:12,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411276293] [2022-01-10 19:33:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:12,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:12,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,486 INFO L87 Difference]: Start difference. First operand 4276 states and 7146 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:12,563 INFO L93 Difference]: Finished difference Result 6412 states and 10303 transitions. [2022-01-10 19:33:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:12,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:12,577 INFO L225 Difference]: With dead ends: 6412 [2022-01-10 19:33:12,577 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:12,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,586 INFO L933 BasicCegarLoop]: 5697 mSDtfsCounter, 5683 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 5697 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:12,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5683 Valid, 5697 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6704891177158905) internal successors, (7138), 4275 states have internal predecessors, (7138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7138 transitions. [2022-01-10 19:33:12,677 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7138 transitions. Word has length 132 [2022-01-10 19:33:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:12,677 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7138 transitions. [2022-01-10 19:33:12,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7138 transitions. [2022-01-10 19:33:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:12,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:12,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:12,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:33:12,680 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1830639395, now seen corresponding path program 1 times [2022-01-10 19:33:12,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:12,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446045355] [2022-01-10 19:33:12,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:12,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:12,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:12,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446045355] [2022-01-10 19:33:12,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446045355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:12,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:12,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:12,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381630464] [2022-01-10 19:33:12,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:12,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:12,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,748 INFO L87 Difference]: Start difference. First operand 4276 states and 7138 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:12,821 INFO L93 Difference]: Finished difference Result 6411 states and 10286 transitions. [2022-01-10 19:33:12,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:12,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:12,834 INFO L225 Difference]: With dead ends: 6411 [2022-01-10 19:33:12,834 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:12,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,838 INFO L933 BasicCegarLoop]: 5692 mSDtfsCounter, 5677 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5677 SdHoareTripleChecker+Valid, 5692 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:12,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5677 Valid, 5692 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:12,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6686168967938217) internal successors, (7130), 4275 states have internal predecessors, (7130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7130 transitions. [2022-01-10 19:33:12,917 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7130 transitions. Word has length 132 [2022-01-10 19:33:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:12,918 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7130 transitions. [2022-01-10 19:33:12,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7130 transitions. [2022-01-10 19:33:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:12,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:12,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:12,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:33:12,919 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1244161283, now seen corresponding path program 1 times [2022-01-10 19:33:12,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:12,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348861870] [2022-01-10 19:33:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:12,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:12,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:12,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348861870] [2022-01-10 19:33:12,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348861870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:12,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:12,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:12,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121960134] [2022-01-10 19:33:12,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:12,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:12,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:12,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:12,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:12,958 INFO L87 Difference]: Start difference. First operand 4276 states and 7130 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:13,036 INFO L93 Difference]: Finished difference Result 6409 states and 10267 transitions. [2022-01-10 19:33:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:13,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:13,054 INFO L225 Difference]: With dead ends: 6409 [2022-01-10 19:33:13,055 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:13,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,059 INFO L933 BasicCegarLoop]: 5687 mSDtfsCounter, 5670 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5670 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:13,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5670 Valid, 5687 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6667446758717528) internal successors, (7122), 4275 states have internal predecessors, (7122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7122 transitions. [2022-01-10 19:33:13,149 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7122 transitions. Word has length 132 [2022-01-10 19:33:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:13,153 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7122 transitions. [2022-01-10 19:33:13,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7122 transitions. [2022-01-10 19:33:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:13,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:13,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:13,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:33:13,156 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:13,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:13,156 INFO L85 PathProgramCache]: Analyzing trace with hash 530748701, now seen corresponding path program 1 times [2022-01-10 19:33:13,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:13,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544524569] [2022-01-10 19:33:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:13,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:13,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:13,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544524569] [2022-01-10 19:33:13,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544524569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:13,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:13,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:13,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523101946] [2022-01-10 19:33:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:13,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:13,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:13,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:13,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,212 INFO L87 Difference]: Start difference. First operand 4276 states and 7122 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:13,292 INFO L93 Difference]: Finished difference Result 6408 states and 10250 transitions. [2022-01-10 19:33:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:13,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:13,314 INFO L225 Difference]: With dead ends: 6408 [2022-01-10 19:33:13,314 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:13,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,332 INFO L933 BasicCegarLoop]: 5682 mSDtfsCounter, 5664 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 5682 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:13,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5664 Valid, 5682 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.664872454949684) internal successors, (7114), 4275 states have internal predecessors, (7114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7114 transitions. [2022-01-10 19:33:13,556 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7114 transitions. Word has length 132 [2022-01-10 19:33:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:13,556 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7114 transitions. [2022-01-10 19:33:13,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7114 transitions. [2022-01-10 19:33:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:13,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:13,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:13,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:33:13,558 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:13,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash -243280131, now seen corresponding path program 1 times [2022-01-10 19:33:13,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:13,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720554050] [2022-01-10 19:33:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:13,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:13,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:13,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:13,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720554050] [2022-01-10 19:33:13,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720554050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:13,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:13,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:13,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845488853] [2022-01-10 19:33:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:13,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:13,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:13,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:13,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,625 INFO L87 Difference]: Start difference. First operand 4276 states and 7114 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:13,707 INFO L93 Difference]: Finished difference Result 6407 states and 10233 transitions. [2022-01-10 19:33:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:13,716 INFO L225 Difference]: With dead ends: 6407 [2022-01-10 19:33:13,716 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:13,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,723 INFO L933 BasicCegarLoop]: 5677 mSDtfsCounter, 5658 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:13,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 5677 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:13,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6630002340276153) internal successors, (7106), 4275 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7106 transitions. [2022-01-10 19:33:13,812 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7106 transitions. Word has length 132 [2022-01-10 19:33:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:13,812 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7106 transitions. [2022-01-10 19:33:13,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7106 transitions. [2022-01-10 19:33:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:13,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:13,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:13,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:33:13,816 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash -268248803, now seen corresponding path program 1 times [2022-01-10 19:33:13,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:13,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662273703] [2022-01-10 19:33:13,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:13,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:13,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:13,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662273703] [2022-01-10 19:33:13,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662273703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:13,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:13,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:13,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008191647] [2022-01-10 19:33:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:13,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:13,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:13,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,854 INFO L87 Difference]: Start difference. First operand 4276 states and 7106 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:13,925 INFO L93 Difference]: Finished difference Result 6406 states and 10216 transitions. [2022-01-10 19:33:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:13,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:13,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:13,933 INFO L225 Difference]: With dead ends: 6406 [2022-01-10 19:33:13,933 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:13,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:13,937 INFO L933 BasicCegarLoop]: 5672 mSDtfsCounter, 5652 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 5672 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:13,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5652 Valid, 5672 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:14,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6611280131055464) internal successors, (7098), 4275 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7098 transitions. [2022-01-10 19:33:14,023 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7098 transitions. Word has length 132 [2022-01-10 19:33:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:14,024 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7098 transitions. [2022-01-10 19:33:14,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7098 transitions. [2022-01-10 19:33:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:14,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:14,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:14,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:33:14,025 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:14,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:14,026 INFO L85 PathProgramCache]: Analyzing trace with hash 839324413, now seen corresponding path program 1 times [2022-01-10 19:33:14,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:14,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451162785] [2022-01-10 19:33:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:14,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:14,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:14,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451162785] [2022-01-10 19:33:14,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451162785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:14,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:14,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:14,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895153027] [2022-01-10 19:33:14,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:14,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:14,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:14,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,060 INFO L87 Difference]: Start difference. First operand 4276 states and 7098 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:14,161 INFO L93 Difference]: Finished difference Result 6405 states and 10199 transitions. [2022-01-10 19:33:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:14,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:14,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:14,168 INFO L225 Difference]: With dead ends: 6405 [2022-01-10 19:33:14,168 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:14,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,173 INFO L933 BasicCegarLoop]: 5643 mSDtfsCounter, 5532 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 5741 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:14,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 5741 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6541071846477884) internal successors, (7068), 4275 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7068 transitions. [2022-01-10 19:33:14,257 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7068 transitions. Word has length 132 [2022-01-10 19:33:14,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:14,257 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7068 transitions. [2022-01-10 19:33:14,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,260 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7068 transitions. [2022-01-10 19:33:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:14,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:14,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:14,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:33:14,261 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:14,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash -345324388, now seen corresponding path program 1 times [2022-01-10 19:33:14,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:14,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455964963] [2022-01-10 19:33:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:14,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:14,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:14,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455964963] [2022-01-10 19:33:14,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455964963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:14,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:14,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:14,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38461921] [2022-01-10 19:33:14,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:14,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:14,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:14,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:14,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,296 INFO L87 Difference]: Start difference. First operand 4276 states and 7068 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:14,435 INFO L93 Difference]: Finished difference Result 6404 states and 10138 transitions. [2022-01-10 19:33:14,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:14,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:14,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:14,442 INFO L225 Difference]: With dead ends: 6404 [2022-01-10 19:33:14,442 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:14,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,446 INFO L933 BasicCegarLoop]: 5626 mSDtfsCounter, 5515 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5515 SdHoareTripleChecker+Valid, 5723 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:14,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5515 Valid, 5723 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6470863561900304) internal successors, (7038), 4275 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7038 transitions. [2022-01-10 19:33:14,562 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7038 transitions. Word has length 132 [2022-01-10 19:33:14,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:14,563 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7038 transitions. [2022-01-10 19:33:14,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7038 transitions. [2022-01-10 19:33:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:14,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:14,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:14,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:33:14,565 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:14,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1733170885, now seen corresponding path program 1 times [2022-01-10 19:33:14,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:14,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350922589] [2022-01-10 19:33:14,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:14,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:14,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:14,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350922589] [2022-01-10 19:33:14,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350922589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:14,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:14,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:14,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808248512] [2022-01-10 19:33:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:14,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:14,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:14,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,611 INFO L87 Difference]: Start difference. First operand 4276 states and 7038 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:14,730 INFO L93 Difference]: Finished difference Result 6403 states and 10077 transitions. [2022-01-10 19:33:14,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:14,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:14,738 INFO L225 Difference]: With dead ends: 6403 [2022-01-10 19:33:14,738 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:14,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,742 INFO L933 BasicCegarLoop]: 5609 mSDtfsCounter, 5498 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:14,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5498 Valid, 5705 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:14,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:14,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6400655277322724) internal successors, (7008), 4275 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7008 transitions. [2022-01-10 19:33:14,857 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7008 transitions. Word has length 132 [2022-01-10 19:33:14,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:14,858 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7008 transitions. [2022-01-10 19:33:14,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7008 transitions. [2022-01-10 19:33:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:14,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:14,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:14,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:33:14,860 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 287943002, now seen corresponding path program 1 times [2022-01-10 19:33:14,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:14,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643359181] [2022-01-10 19:33:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:14,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:14,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:14,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643359181] [2022-01-10 19:33:14,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643359181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:14,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:14,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:14,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585904395] [2022-01-10 19:33:14,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:14,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:14,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:14,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:14,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:14,897 INFO L87 Difference]: Start difference. First operand 4276 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:15,022 INFO L93 Difference]: Finished difference Result 6402 states and 10016 transitions. [2022-01-10 19:33:15,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:15,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:15,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:15,029 INFO L225 Difference]: With dead ends: 6402 [2022-01-10 19:33:15,030 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:15,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,033 INFO L933 BasicCegarLoop]: 5592 mSDtfsCounter, 5481 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5481 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:15,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5481 Valid, 5687 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:15,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6330446992745145) internal successors, (6978), 4275 states have internal predecessors, (6978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6978 transitions. [2022-01-10 19:33:15,157 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6978 transitions. Word has length 132 [2022-01-10 19:33:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:15,157 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6978 transitions. [2022-01-10 19:33:15,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6978 transitions. [2022-01-10 19:33:15,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:15,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:15,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:15,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:33:15,160 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash -619326662, now seen corresponding path program 1 times [2022-01-10 19:33:15,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013218356] [2022-01-10 19:33:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:15,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:15,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:15,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013218356] [2022-01-10 19:33:15,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013218356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:15,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:15,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:15,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567057558] [2022-01-10 19:33:15,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:15,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:15,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:15,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,198 INFO L87 Difference]: Start difference. First operand 4276 states and 6978 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:15,334 INFO L93 Difference]: Finished difference Result 6401 states and 9955 transitions. [2022-01-10 19:33:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:15,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:15,341 INFO L225 Difference]: With dead ends: 6401 [2022-01-10 19:33:15,341 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:15,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,347 INFO L933 BasicCegarLoop]: 5575 mSDtfsCounter, 5464 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 5669 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:15,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5464 Valid, 5669 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:15,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6260238708167565) internal successors, (6948), 4275 states have internal predecessors, (6948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6948 transitions. [2022-01-10 19:33:15,491 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6948 transitions. Word has length 132 [2022-01-10 19:33:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:15,492 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6948 transitions. [2022-01-10 19:33:15,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6948 transitions. [2022-01-10 19:33:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:15,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:15,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:15,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:33:15,493 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:15,494 INFO L85 PathProgramCache]: Analyzing trace with hash 83452377, now seen corresponding path program 1 times [2022-01-10 19:33:15,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:15,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131823009] [2022-01-10 19:33:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:15,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:15,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:15,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131823009] [2022-01-10 19:33:15,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131823009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:15,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:15,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:15,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609014651] [2022-01-10 19:33:15,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:15,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:15,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:15,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:15,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,531 INFO L87 Difference]: Start difference. First operand 4276 states and 6948 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:15,664 INFO L93 Difference]: Finished difference Result 6400 states and 9894 transitions. [2022-01-10 19:33:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:15,671 INFO L225 Difference]: With dead ends: 6400 [2022-01-10 19:33:15,671 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:15,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,675 INFO L933 BasicCegarLoop]: 5558 mSDtfsCounter, 5447 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:15,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5447 Valid, 5651 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:15,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:15,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6190030423589983) internal successors, (6918), 4275 states have internal predecessors, (6918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6918 transitions. [2022-01-10 19:33:15,803 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6918 transitions. Word has length 132 [2022-01-10 19:33:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:15,804 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6918 transitions. [2022-01-10 19:33:15,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6918 transitions. [2022-01-10 19:33:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:15,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:15,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:15,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:33:15,805 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:15,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1876425864, now seen corresponding path program 1 times [2022-01-10 19:33:15,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:15,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789190193] [2022-01-10 19:33:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:15,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:15,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:15,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789190193] [2022-01-10 19:33:15,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789190193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:15,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:15,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:15,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071045095] [2022-01-10 19:33:15,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:15,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:15,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:15,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:15,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:15,847 INFO L87 Difference]: Start difference. First operand 4276 states and 6918 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:16,005 INFO L93 Difference]: Finished difference Result 6399 states and 9833 transitions. [2022-01-10 19:33:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:16,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:16,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:16,012 INFO L225 Difference]: With dead ends: 6399 [2022-01-10 19:33:16,012 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:16,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,016 INFO L933 BasicCegarLoop]: 5541 mSDtfsCounter, 5430 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5430 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:16,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5430 Valid, 5633 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:16,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:16,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6119822139012403) internal successors, (6888), 4275 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6888 transitions. [2022-01-10 19:33:16,142 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6888 transitions. Word has length 132 [2022-01-10 19:33:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:16,142 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6888 transitions. [2022-01-10 19:33:16,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6888 transitions. [2022-01-10 19:33:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:16,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:16,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:16,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:33:16,144 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:16,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:16,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1089413271, now seen corresponding path program 1 times [2022-01-10 19:33:16,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:16,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397154992] [2022-01-10 19:33:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:16,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:16,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:16,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397154992] [2022-01-10 19:33:16,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397154992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:16,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:16,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:16,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845855879] [2022-01-10 19:33:16,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:16,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:16,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,178 INFO L87 Difference]: Start difference. First operand 4276 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:16,315 INFO L93 Difference]: Finished difference Result 6398 states and 9772 transitions. [2022-01-10 19:33:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:16,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:16,322 INFO L225 Difference]: With dead ends: 6398 [2022-01-10 19:33:16,323 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:16,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,326 INFO L933 BasicCegarLoop]: 5524 mSDtfsCounter, 5413 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:16,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5413 Valid, 5615 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:16,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:16,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6049613854434823) internal successors, (6858), 4275 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6858 transitions. [2022-01-10 19:33:16,432 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6858 transitions. Word has length 132 [2022-01-10 19:33:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:16,432 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6858 transitions. [2022-01-10 19:33:16,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6858 transitions. [2022-01-10 19:33:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:16,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:16,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:16,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:33:16,434 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:16,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash 220668086, now seen corresponding path program 1 times [2022-01-10 19:33:16,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:16,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211793898] [2022-01-10 19:33:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:16,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:16,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:16,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211793898] [2022-01-10 19:33:16,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211793898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:16,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:16,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:16,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726886699] [2022-01-10 19:33:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:16,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:16,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:16,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,463 INFO L87 Difference]: Start difference. First operand 4276 states and 6858 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:16,568 INFO L93 Difference]: Finished difference Result 6397 states and 9711 transitions. [2022-01-10 19:33:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:16,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:16,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:16,575 INFO L225 Difference]: With dead ends: 6397 [2022-01-10 19:33:16,575 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:16,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,579 INFO L933 BasicCegarLoop]: 5507 mSDtfsCounter, 5396 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:16,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5597 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:16,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:16,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5979405569857243) internal successors, (6828), 4275 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6828 transitions. [2022-01-10 19:33:16,720 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6828 transitions. Word has length 132 [2022-01-10 19:33:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:16,720 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6828 transitions. [2022-01-10 19:33:16,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6828 transitions. [2022-01-10 19:33:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:16,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:16,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:16,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:33:16,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 225021013, now seen corresponding path program 1 times [2022-01-10 19:33:16,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:16,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083574989] [2022-01-10 19:33:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:16,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:16,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:16,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083574989] [2022-01-10 19:33:16,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083574989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:16,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:16,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:16,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627066998] [2022-01-10 19:33:16,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:16,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:16,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:16,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:16,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,751 INFO L87 Difference]: Start difference. First operand 4276 states and 6828 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:16,885 INFO L93 Difference]: Finished difference Result 6396 states and 9650 transitions. [2022-01-10 19:33:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:16,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:16,891 INFO L225 Difference]: With dead ends: 6396 [2022-01-10 19:33:16,891 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:33:16,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:16,894 INFO L933 BasicCegarLoop]: 5490 mSDtfsCounter, 5379 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5379 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:16,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5379 Valid, 5579 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:33:17,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:33:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5909197285279664) internal successors, (6798), 4275 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6798 transitions. [2022-01-10 19:33:17,021 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6798 transitions. Word has length 132 [2022-01-10 19:33:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:17,022 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6798 transitions. [2022-01-10 19:33:17,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6798 transitions. [2022-01-10 19:33:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:17,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:17,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:17,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:33:17,023 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1502522100, now seen corresponding path program 1 times [2022-01-10 19:33:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:17,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452232056] [2022-01-10 19:33:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:17,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:17,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:17,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452232056] [2022-01-10 19:33:17,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452232056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:17,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:17,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:33:17,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736263443] [2022-01-10 19:33:17,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:17,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:33:17,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:17,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:33:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:33:17,075 INFO L87 Difference]: Start difference. First operand 4276 states and 6798 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:17,360 INFO L93 Difference]: Finished difference Result 7865 states and 11582 transitions. [2022-01-10 19:33:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:33:17,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:17,373 INFO L225 Difference]: With dead ends: 7865 [2022-01-10 19:33:17,373 INFO L226 Difference]: Without dead ends: 5794 [2022-01-10 19:33:17,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 19:33:17,377 INFO L933 BasicCegarLoop]: 5517 mSDtfsCounter, 3586 mSDsluCounter, 15214 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 20731 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:17,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3586 Valid, 20731 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:33:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5794 states. [2022-01-10 19:33:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5794 to 4282. [2022-01-10 19:33:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5849497546155644) internal successors, (6782), 4281 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6782 transitions. [2022-01-10 19:33:17,533 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6782 transitions. Word has length 132 [2022-01-10 19:33:17,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:17,533 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6782 transitions. [2022-01-10 19:33:17,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,533 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6782 transitions. [2022-01-10 19:33:17,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:17,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:17,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:17,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:33:17,534 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:17,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:17,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2099052491, now seen corresponding path program 1 times [2022-01-10 19:33:17,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:17,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103691923] [2022-01-10 19:33:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:17,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:17,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:17,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103691923] [2022-01-10 19:33:17,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103691923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:17,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:17,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:17,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489674810] [2022-01-10 19:33:17,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:17,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:17,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:17,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:17,592 INFO L87 Difference]: Start difference. First operand 4282 states and 6782 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:17,697 INFO L93 Difference]: Finished difference Result 6426 states and 9578 transitions. [2022-01-10 19:33:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:17,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:17,703 INFO L225 Difference]: With dead ends: 6426 [2022-01-10 19:33:17,703 INFO L226 Difference]: Without dead ends: 4282 [2022-01-10 19:33:17,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:17,706 INFO L933 BasicCegarLoop]: 5485 mSDtfsCounter, 5392 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:17,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 5485 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-10 19:33:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-10 19:33:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5830801589156345) internal successors, (6774), 4281 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6774 transitions. [2022-01-10 19:33:17,855 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6774 transitions. Word has length 132 [2022-01-10 19:33:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:17,855 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6774 transitions. [2022-01-10 19:33:17,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6774 transitions. [2022-01-10 19:33:17,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:17,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:17,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:17,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:33:17,856 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:17,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:17,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1073560492, now seen corresponding path program 1 times [2022-01-10 19:33:17,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:17,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624429624] [2022-01-10 19:33:17,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:17,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:17,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:17,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624429624] [2022-01-10 19:33:17,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624429624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:17,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:17,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:17,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601481564] [2022-01-10 19:33:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:17,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:17,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:17,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:17,896 INFO L87 Difference]: Start difference. First operand 4282 states and 6774 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:18,003 INFO L93 Difference]: Finished difference Result 6422 states and 9558 transitions. [2022-01-10 19:33:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:18,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:18,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:18,009 INFO L225 Difference]: With dead ends: 6422 [2022-01-10 19:33:18,009 INFO L226 Difference]: Without dead ends: 4282 [2022-01-10 19:33:18,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:18,011 INFO L933 BasicCegarLoop]: 5480 mSDtfsCounter, 5383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 5480 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:18,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 5480 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-10 19:33:18,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-10 19:33:18,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5812105632157045) internal successors, (6766), 4281 states have internal predecessors, (6766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6766 transitions. [2022-01-10 19:33:18,120 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6766 transitions. Word has length 132 [2022-01-10 19:33:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:18,120 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6766 transitions. [2022-01-10 19:33:18,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,120 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6766 transitions. [2022-01-10 19:33:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:33:18,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:18,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:18,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:33:18,121 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:18,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1062244365, now seen corresponding path program 1 times [2022-01-10 19:33:18,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:18,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591348545] [2022-01-10 19:33:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:18,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:18,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:18,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591348545] [2022-01-10 19:33:18,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591348545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:18,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:18,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:33:18,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203979905] [2022-01-10 19:33:18,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:18,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:18,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:18,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:18,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:18,160 INFO L87 Difference]: Start difference. First operand 4282 states and 6766 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:18,390 INFO L93 Difference]: Finished difference Result 8396 states and 12120 transitions. [2022-01-10 19:33:18,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:18,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:33:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:18,398 INFO L225 Difference]: With dead ends: 8396 [2022-01-10 19:33:18,398 INFO L226 Difference]: Without dead ends: 6272 [2022-01-10 19:33:18,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:18,401 INFO L933 BasicCegarLoop]: 5469 mSDtfsCounter, 5311 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:18,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5311 Valid, 6811 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6272 states. [2022-01-10 19:33:18,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6272 to 6134. [2022-01-10 19:33:18,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6131 states have (on average 1.4937204371228185) internal successors, (9158), 6133 states have internal predecessors, (9158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 9158 transitions. [2022-01-10 19:33:18,587 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 9158 transitions. Word has length 132 [2022-01-10 19:33:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:18,587 INFO L470 AbstractCegarLoop]: Abstraction has 6134 states and 9158 transitions. [2022-01-10 19:33:18,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 9158 transitions. [2022-01-10 19:33:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:33:18,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:18,590 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:18,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:33:18,591 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:18,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:18,591 INFO L85 PathProgramCache]: Analyzing trace with hash 878533393, now seen corresponding path program 1 times [2022-01-10 19:33:18,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:18,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199455502] [2022-01-10 19:33:18,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:18,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:18,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:18,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199455502] [2022-01-10 19:33:18,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199455502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:18,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:18,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:18,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167036131] [2022-01-10 19:33:18,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:18,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:18,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:18,645 INFO L87 Difference]: Start difference. First operand 6134 states and 9158 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:19,064 INFO L93 Difference]: Finished difference Result 13908 states and 19254 transitions. [2022-01-10 19:33:19,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:19,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-10 19:33:19,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:19,077 INFO L225 Difference]: With dead ends: 13908 [2022-01-10 19:33:19,077 INFO L226 Difference]: Without dead ends: 9938 [2022-01-10 19:33:19,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:19,083 INFO L933 BasicCegarLoop]: 5466 mSDtfsCounter, 5347 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 6808 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:19,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5347 Valid, 6808 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2022-01-10 19:33:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 9678. [2022-01-10 19:33:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9678 states, 9675 states have (on average 1.4199483204134367) internal successors, (13738), 9677 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9678 states to 9678 states and 13738 transitions. [2022-01-10 19:33:19,451 INFO L78 Accepts]: Start accepts. Automaton has 9678 states and 13738 transitions. Word has length 214 [2022-01-10 19:33:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:19,451 INFO L470 AbstractCegarLoop]: Abstraction has 9678 states and 13738 transitions. [2022-01-10 19:33:19,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 9678 states and 13738 transitions. [2022-01-10 19:33:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:33:19,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:19,455 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:19,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:33:19,455 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:19,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1185270704, now seen corresponding path program 1 times [2022-01-10 19:33:19,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:19,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76677793] [2022-01-10 19:33:19,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:19,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:19,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:19,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76677793] [2022-01-10 19:33:19,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76677793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:19,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:19,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:19,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035558328] [2022-01-10 19:33:19,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:19,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:19,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:19,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:19,504 INFO L87 Difference]: Start difference. First operand 9678 states and 13738 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:20,118 INFO L93 Difference]: Finished difference Result 24387 states and 32638 transitions. [2022-01-10 19:33:20,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-10 19:33:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:20,140 INFO L225 Difference]: With dead ends: 24387 [2022-01-10 19:33:20,140 INFO L226 Difference]: Without dead ends: 16955 [2022-01-10 19:33:20,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:20,150 INFO L933 BasicCegarLoop]: 5816 mSDtfsCounter, 5338 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5338 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:20,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5338 Valid, 7307 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16955 states. [2022-01-10 19:33:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16955 to 16711. [2022-01-10 19:33:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 16708 states have (on average 1.356954752214508) internal successors, (22672), 16710 states have internal predecessors, (22672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 22672 transitions. [2022-01-10 19:33:20,851 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 22672 transitions. Word has length 214 [2022-01-10 19:33:20,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:20,851 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 22672 transitions. [2022-01-10 19:33:20,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:20,851 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 22672 transitions. [2022-01-10 19:33:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:33:20,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:20,858 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:20,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:33:20,859 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:20,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash -430141136, now seen corresponding path program 1 times [2022-01-10 19:33:20,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:20,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903477689] [2022-01-10 19:33:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:20,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:33:20,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903477689] [2022-01-10 19:33:20,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903477689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:20,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:20,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873611727] [2022-01-10 19:33:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:20,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:20,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:20,889 INFO L87 Difference]: Start difference. First operand 16711 states and 22672 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:21,663 INFO L93 Difference]: Finished difference Result 31135 states and 41183 transitions. [2022-01-10 19:33:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:21,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 214 [2022-01-10 19:33:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:21,689 INFO L225 Difference]: With dead ends: 31135 [2022-01-10 19:33:21,689 INFO L226 Difference]: Without dead ends: 16592 [2022-01-10 19:33:21,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:21,708 INFO L933 BasicCegarLoop]: 5479 mSDtfsCounter, 1517 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 9437 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:21,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 9437 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16592 states. [2022-01-10 19:33:22,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16592 to 16592. [2022-01-10 19:33:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16592 states, 16589 states have (on average 1.3579480378564108) internal successors, (22527), 16591 states have internal predecessors, (22527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:22,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16592 states to 16592 states and 22527 transitions. [2022-01-10 19:33:22,505 INFO L78 Accepts]: Start accepts. Automaton has 16592 states and 22527 transitions. Word has length 214 [2022-01-10 19:33:22,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:22,505 INFO L470 AbstractCegarLoop]: Abstraction has 16592 states and 22527 transitions. [2022-01-10 19:33:22,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:22,506 INFO L276 IsEmpty]: Start isEmpty. Operand 16592 states and 22527 transitions. [2022-01-10 19:33:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 19:33:22,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:22,513 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:22,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:33:22,513 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:22,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1050818831, now seen corresponding path program 1 times [2022-01-10 19:33:22,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:22,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983380549] [2022-01-10 19:33:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:22,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:22,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:22,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983380549] [2022-01-10 19:33:22,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983380549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:22,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:22,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:22,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642703986] [2022-01-10 19:33:22,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:22,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:22,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:22,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:22,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:22,581 INFO L87 Difference]: Start difference. First operand 16592 states and 22527 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:23,791 INFO L93 Difference]: Finished difference Result 44850 states and 58657 transitions. [2022-01-10 19:33:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2022-01-10 19:33:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:23,827 INFO L225 Difference]: With dead ends: 44850 [2022-01-10 19:33:23,828 INFO L226 Difference]: Without dead ends: 30504 [2022-01-10 19:33:23,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:23,838 INFO L933 BasicCegarLoop]: 5803 mSDtfsCounter, 5337 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:23,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7292 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30504 states. [2022-01-10 19:33:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30504 to 29652. [2022-01-10 19:33:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29652 states, 29649 states have (on average 1.3196060575398834) internal successors, (39125), 29651 states have internal predecessors, (39125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29652 states to 29652 states and 39125 transitions. [2022-01-10 19:33:25,403 INFO L78 Accepts]: Start accepts. Automaton has 29652 states and 39125 transitions. Word has length 215 [2022-01-10 19:33:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:25,423 INFO L470 AbstractCegarLoop]: Abstraction has 29652 states and 39125 transitions. [2022-01-10 19:33:25,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 29652 states and 39125 transitions. [2022-01-10 19:33:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 19:33:25,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:25,435 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:25,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:33:25,435 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -725545650, now seen corresponding path program 1 times [2022-01-10 19:33:25,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:25,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463493258] [2022-01-10 19:33:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:25,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:33:25,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:25,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463493258] [2022-01-10 19:33:25,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463493258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:25,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:25,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:25,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604434596] [2022-01-10 19:33:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:25,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:25,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:25,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:25,466 INFO L87 Difference]: Start difference. First operand 29652 states and 39125 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:26,900 INFO L93 Difference]: Finished difference Result 57011 states and 74083 transitions. [2022-01-10 19:33:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 215 [2022-01-10 19:33:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:26,940 INFO L225 Difference]: With dead ends: 57011 [2022-01-10 19:33:26,940 INFO L226 Difference]: Without dead ends: 29534 [2022-01-10 19:33:26,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:26,964 INFO L933 BasicCegarLoop]: 5478 mSDtfsCounter, 1515 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 9436 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:26,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 9436 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29534 states. [2022-01-10 19:33:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29534 to 29534. [2022-01-10 19:33:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29534 states, 29531 states have (on average 1.3200365717381735) internal successors, (38982), 29533 states have internal predecessors, (38982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29534 states to 29534 states and 38982 transitions. [2022-01-10 19:33:28,419 INFO L78 Accepts]: Start accepts. Automaton has 29534 states and 38982 transitions. Word has length 215 [2022-01-10 19:33:28,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:28,419 INFO L470 AbstractCegarLoop]: Abstraction has 29534 states and 38982 transitions. [2022-01-10 19:33:28,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 29534 states and 38982 transitions. [2022-01-10 19:33:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 19:33:28,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:28,430 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:28,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:33:28,430 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash -546912223, now seen corresponding path program 1 times [2022-01-10 19:33:28,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:28,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561559184] [2022-01-10 19:33:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:28,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:28,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:28,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561559184] [2022-01-10 19:33:28,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561559184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:28,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:28,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:28,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871805223] [2022-01-10 19:33:28,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:28,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:28,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:28,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:28,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:28,480 INFO L87 Difference]: Start difference. First operand 29534 states and 38982 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:31,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:31,142 INFO L93 Difference]: Finished difference Result 83091 states and 107270 transitions. [2022-01-10 19:33:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2022-01-10 19:33:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:31,221 INFO L225 Difference]: With dead ends: 83091 [2022-01-10 19:33:31,221 INFO L226 Difference]: Without dead ends: 55803 [2022-01-10 19:33:31,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:31,246 INFO L933 BasicCegarLoop]: 5830 mSDtfsCounter, 5337 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7317 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:31,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7317 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55803 states. [2022-01-10 19:33:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55803 to 54327. [2022-01-10 19:33:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54327 states, 54324 states have (on average 1.297437596642368) internal successors, (70482), 54326 states have internal predecessors, (70482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:34,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54327 states to 54327 states and 70482 transitions. [2022-01-10 19:33:34,237 INFO L78 Accepts]: Start accepts. Automaton has 54327 states and 70482 transitions. Word has length 216 [2022-01-10 19:33:34,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:34,237 INFO L470 AbstractCegarLoop]: Abstraction has 54327 states and 70482 transitions. [2022-01-10 19:33:34,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:34,238 INFO L276 IsEmpty]: Start isEmpty. Operand 54327 states and 70482 transitions. [2022-01-10 19:33:34,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 19:33:34,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:34,274 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:34,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:33:34,275 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1127454402, now seen corresponding path program 1 times [2022-01-10 19:33:34,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:34,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748205005] [2022-01-10 19:33:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:34,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:33:34,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:34,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748205005] [2022-01-10 19:33:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748205005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:34,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:34,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:34,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279779385] [2022-01-10 19:33:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:34,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:34,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:34,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:34,323 INFO L87 Difference]: Start difference. First operand 54327 states and 70482 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:37,152 INFO L93 Difference]: Finished difference Result 106355 states and 136791 transitions. [2022-01-10 19:33:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:37,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 216 [2022-01-10 19:33:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:37,234 INFO L225 Difference]: With dead ends: 106355 [2022-01-10 19:33:37,234 INFO L226 Difference]: Without dead ends: 54210 [2022-01-10 19:33:37,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:37,271 INFO L933 BasicCegarLoop]: 5477 mSDtfsCounter, 1513 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 9435 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:37,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 9435 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54210 states. [2022-01-10 19:33:39,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54210 to 54210. [2022-01-10 19:33:40,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54210 states, 54207 states have (on average 1.2976368365709225) internal successors, (70341), 54209 states have internal predecessors, (70341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54210 states to 54210 states and 70341 transitions. [2022-01-10 19:33:40,098 INFO L78 Accepts]: Start accepts. Automaton has 54210 states and 70341 transitions. Word has length 216 [2022-01-10 19:33:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:40,098 INFO L470 AbstractCegarLoop]: Abstraction has 54210 states and 70341 transitions. [2022-01-10 19:33:40,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 54210 states and 70341 transitions. [2022-01-10 19:33:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 19:33:40,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:40,119 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:40,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:33:40,120 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:40,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1168246236, now seen corresponding path program 1 times [2022-01-10 19:33:40,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:40,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462066022] [2022-01-10 19:33:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:40,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:33:40,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462066022] [2022-01-10 19:33:40,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462066022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:40,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:40,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:40,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834734207] [2022-01-10 19:33:40,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:40,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:40,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:40,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:40,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:40,272 INFO L87 Difference]: Start difference. First operand 54210 states and 70341 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:45,662 INFO L93 Difference]: Finished difference Result 155702 states and 199507 transitions. [2022-01-10 19:33:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:45,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2022-01-10 19:33:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:45,861 INFO L225 Difference]: With dead ends: 155702 [2022-01-10 19:33:45,861 INFO L226 Difference]: Without dead ends: 103738 [2022-01-10 19:33:45,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:45,922 INFO L933 BasicCegarLoop]: 5886 mSDtfsCounter, 5337 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:45,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7371 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103738 states. [2022-01-10 19:33:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103738 to 101238. [2022-01-10 19:33:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101238 states, 101235 states have (on average 1.2846051266854348) internal successors, (130047), 101237 states have internal predecessors, (130047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101238 states to 101238 states and 130047 transitions. [2022-01-10 19:33:51,548 INFO L78 Accepts]: Start accepts. Automaton has 101238 states and 130047 transitions. Word has length 217 [2022-01-10 19:33:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:33:51,548 INFO L470 AbstractCegarLoop]: Abstraction has 101238 states and 130047 transitions. [2022-01-10 19:33:51,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:51,548 INFO L276 IsEmpty]: Start isEmpty. Operand 101238 states and 130047 transitions. [2022-01-10 19:33:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 19:33:51,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:33:51,581 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:33:51,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 19:33:51,582 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:33:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:33:51,584 INFO L85 PathProgramCache]: Analyzing trace with hash -441047551, now seen corresponding path program 1 times [2022-01-10 19:33:51,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:33:51,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447118885] [2022-01-10 19:33:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:33:51,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:33:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:33:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 19:33:51,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:33:51,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447118885] [2022-01-10 19:33:51,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447118885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:33:51,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:33:51,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:33:51,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786888418] [2022-01-10 19:33:51,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:33:51,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:33:51,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:33:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:33:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:51,617 INFO L87 Difference]: Start difference. First operand 101238 states and 130047 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:33:57,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:33:57,301 INFO L93 Difference]: Finished difference Result 200171 states and 255915 transitions. [2022-01-10 19:33:57,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:33:57,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 217 [2022-01-10 19:33:57,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:33:57,487 INFO L225 Difference]: With dead ends: 200171 [2022-01-10 19:33:57,487 INFO L226 Difference]: Without dead ends: 101122 [2022-01-10 19:33:57,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:33:57,593 INFO L933 BasicCegarLoop]: 5476 mSDtfsCounter, 1511 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 9434 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:33:57,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 9434 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:33:57,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101122 states.