/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_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.12.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:38:16,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:38:16,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:38:16,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:38:16,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:38:16,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:38:16,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:38:16,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:38:16,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:38:16,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:38:16,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:38:16,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:38:16,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:38:16,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:38:16,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:38:16,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:38:16,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:38:16,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:38:16,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:38:16,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:38:16,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:38:16,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:38:16,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:38:16,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:38:16,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:38:16,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:38:16,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:38:16,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:38:16,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:38:16,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:38:16,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:38:16,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:38:16,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:38:16,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:38:16,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:38:16,615 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:38:16,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:38:16,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:38:16,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:38:16,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:38:16,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:38:16,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:38:16,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:38:16,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:38:16,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:38:16,619 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:38:16,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:38:16,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:38:16,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:38:16,844 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:38:16,844 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:38:16,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.12.cil-2.c [2022-01-10 13:38:16,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04f36bdd/5fa6eb9146fb4279b0c469efad13679d/FLAG21367f8af [2022-01-10 13:38:17,659 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:38:17,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.12.cil-2.c [2022-01-10 13:38:17,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04f36bdd/5fa6eb9146fb4279b0c469efad13679d/FLAG21367f8af [2022-01-10 13:38:17,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04f36bdd/5fa6eb9146fb4279b0c469efad13679d [2022-01-10 13:38:17,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:38:17,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:38:17,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:38:17,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:38:17,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:38:17,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:17" (1/1) ... [2022-01-10 13:38:17,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527dfce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:17, skipping insertion in model container [2022-01-10 13:38:17,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:38:17" (1/1) ... [2022-01-10 13:38:17,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:38:18,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:38:19,314 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_label43+token_ring.12.cil-2.c[381679,381692] [2022-01-10 13:38:19,335 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_label43+token_ring.12.cil-2.c[383339,383352] [2022-01-10 13:38:19,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:38:19,559 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:38:20,136 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_label43+token_ring.12.cil-2.c[381679,381692] [2022-01-10 13:38:20,141 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_label43+token_ring.12.cil-2.c[383339,383352] [2022-01-10 13:38:20,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:38:20,211 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:38:20,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20 WrapperNode [2022-01-10 13:38:20,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:38:20,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:38:20,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:38:20,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:38:20,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,639 INFO L137 Inliner]: procedures = 69, calls = 77, calls flagged for inlining = 72, calls inlined = 279, statements flattened = 16469 [2022-01-10 13:38:20,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:38:20,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:38:20,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:38:20,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:38:20,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:20,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:21,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:21,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:21,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:38:21,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:38:21,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:38:21,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:38:21,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (1/1) ... [2022-01-10 13:38:21,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:38:21,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:38:21,165 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 13:38:21,203 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 13:38:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:38:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:38:21,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:38:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:38:21,390 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:38:21,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:38:29,078 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:38:29,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:38:29,106 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-10 13:38:29,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:29 BoogieIcfgContainer [2022-01-10 13:38:29,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:38:29,111 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:38:29,111 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:38:29,112 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:38:29,114 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:29" (1/1) ... [2022-01-10 13:38:30,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:38:30 BasicIcfg [2022-01-10 13:38:30,408 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:38:30,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:38:30,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:38:30,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:38:30,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:38:17" (1/4) ... [2022-01-10 13:38:30,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d48363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:30, skipping insertion in model container [2022-01-10 13:38:30,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:38:20" (2/4) ... [2022-01-10 13:38:30,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d48363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:38:30, skipping insertion in model container [2022-01-10 13:38:30,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:38:29" (3/4) ... [2022-01-10 13:38:30,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d48363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:38:30, skipping insertion in model container [2022-01-10 13:38:30,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:38:30" (4/4) ... [2022-01-10 13:38:30,413 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.12.cil-2.cTransformedIcfg [2022-01-10 13:38:30,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:38:30,416 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 13:38:30,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:38:30,468 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 13:38:30,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 13:38:30,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 3975 states, 3972 states have (on average 1.70392749244713) internal successors, (6768), 3974 states have internal predecessors, (6768), 0 states have call successors, (0), 0 states 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 13:38:30,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:30,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:30,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:30,535 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:30,538 INFO L85 PathProgramCache]: Analyzing trace with hash 900996116, now seen corresponding path program 1 times [2022-01-10 13:38:30,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:30,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212036459] [2022-01-10 13:38:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:30,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:30,880 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 13:38:30,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:30,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212036459] [2022-01-10 13:38:30,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212036459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:30,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:30,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:30,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98250593] [2022-01-10 13:38:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:30,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:30,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:30,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:30,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:30,910 INFO L87 Difference]: Start difference. First operand has 3975 states, 3972 states have (on average 1.70392749244713) internal successors, (6768), 3974 states have internal predecessors, (6768), 0 states have call successors, (0), 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 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:31,208 INFO L93 Difference]: Finished difference Result 9465 states and 15784 transitions. [2022-01-10 13:38:31,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:31,240 INFO L225 Difference]: With dead ends: 9465 [2022-01-10 13:38:31,240 INFO L226 Difference]: Without dead ends: 5439 [2022-01-10 13:38:31,251 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 13:38:31,255 INFO L933 BasicCegarLoop]: 6667 mSDtfsCounter, 6516 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6516 SdHoareTripleChecker+Valid, 9046 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 13:38:31,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6516 Valid, 9046 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:31,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2022-01-10 13:38:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5437. [2022-01-10 13:38:31,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6281508739650414) internal successors, (8849), 5436 states have internal predecessors, (8849), 0 states have call successors, (0), 0 states 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 13:38:31,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8849 transitions. [2022-01-10 13:38:31,423 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8849 transitions. Word has length 165 [2022-01-10 13:38:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:31,424 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8849 transitions. [2022-01-10 13:38:31,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8849 transitions. [2022-01-10 13:38:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:31,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:31,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:31,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:38:31,431 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:31,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1696253644, now seen corresponding path program 1 times [2022-01-10 13:38:31,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:31,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704999704] [2022-01-10 13:38:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:31,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:31,553 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 13:38:31,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:31,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704999704] [2022-01-10 13:38:31,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704999704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:31,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:31,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:31,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044168243] [2022-01-10 13:38:31,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:31,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:31,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:31,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:31,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:31,555 INFO L87 Difference]: Start difference. First operand 5437 states and 8849 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:31,678 INFO L93 Difference]: Finished difference Result 8732 states and 13704 transitions. [2022-01-10 13:38:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:31,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:31,695 INFO L225 Difference]: With dead ends: 8732 [2022-01-10 13:38:31,696 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:31,705 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 13:38:31,706 INFO L933 BasicCegarLoop]: 6594 mSDtfsCounter, 6578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6578 SdHoareTripleChecker+Valid, 6594 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 13:38:31,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6578 Valid, 6594 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:31,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6266789328426863) internal successors, (8841), 5436 states have internal predecessors, (8841), 0 states have call successors, (0), 0 states 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 13:38:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8841 transitions. [2022-01-10 13:38:31,831 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8841 transitions. Word has length 165 [2022-01-10 13:38:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8841 transitions. [2022-01-10 13:38:31,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8841 transitions. [2022-01-10 13:38:31,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:31,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:31,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:31,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:38:31,841 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:31,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1845173844, now seen corresponding path program 1 times [2022-01-10 13:38:31,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:31,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031479926] [2022-01-10 13:38:31,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:31,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:31,926 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 13:38:31,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:31,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031479926] [2022-01-10 13:38:31,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031479926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:31,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:31,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:31,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564068494] [2022-01-10 13:38:31,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:31,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:31,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:31,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:31,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:31,930 INFO L87 Difference]: Start difference. First operand 5437 states and 8841 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:32,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:32,033 INFO L93 Difference]: Finished difference Result 8731 states and 13687 transitions. [2022-01-10 13:38:32,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:32,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:32,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:32,049 INFO L225 Difference]: With dead ends: 8731 [2022-01-10 13:38:32,049 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:32,057 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 13:38:32,059 INFO L933 BasicCegarLoop]: 6589 mSDtfsCounter, 6572 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6572 SdHoareTripleChecker+Valid, 6589 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 13:38:32,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6572 Valid, 6589 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:32,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6252069917203311) internal successors, (8833), 5436 states have internal predecessors, (8833), 0 states have call successors, (0), 0 states 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 13:38:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8833 transitions. [2022-01-10 13:38:32,190 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8833 transitions. Word has length 165 [2022-01-10 13:38:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:32,190 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8833 transitions. [2022-01-10 13:38:32,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8833 transitions. [2022-01-10 13:38:32,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:32,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:32,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:32,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:38:32,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:32,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1543771444, now seen corresponding path program 1 times [2022-01-10 13:38:32,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:32,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034358697] [2022-01-10 13:38:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:32,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:32,260 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 13:38:32,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:32,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034358697] [2022-01-10 13:38:32,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034358697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:32,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:32,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:32,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461797508] [2022-01-10 13:38:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:32,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:32,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:32,263 INFO L87 Difference]: Start difference. First operand 5437 states and 8833 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:32,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:32,394 INFO L93 Difference]: Finished difference Result 8730 states and 13670 transitions. [2022-01-10 13:38:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:32,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:32,410 INFO L225 Difference]: With dead ends: 8730 [2022-01-10 13:38:32,410 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:32,418 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 13:38:32,427 INFO L933 BasicCegarLoop]: 6584 mSDtfsCounter, 6566 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6566 SdHoareTripleChecker+Valid, 6584 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 13:38:32,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6566 Valid, 6584 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6237350505979762) internal successors, (8825), 5436 states have internal predecessors, (8825), 0 states have call successors, (0), 0 states 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 13:38:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8825 transitions. [2022-01-10 13:38:32,578 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8825 transitions. Word has length 165 [2022-01-10 13:38:32,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:32,578 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8825 transitions. [2022-01-10 13:38:32,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8825 transitions. [2022-01-10 13:38:32,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:32,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:32,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:32,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:38:32,580 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:32,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:32,581 INFO L85 PathProgramCache]: Analyzing trace with hash -544161196, now seen corresponding path program 1 times [2022-01-10 13:38:32,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:32,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391737514] [2022-01-10 13:38:32,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:32,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:32,647 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 13:38:32,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:32,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391737514] [2022-01-10 13:38:32,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391737514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:32,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:32,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:32,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585091146] [2022-01-10 13:38:32,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:32,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:32,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:32,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:32,649 INFO L87 Difference]: Start difference. First operand 5437 states and 8825 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:32,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:32,882 INFO L93 Difference]: Finished difference Result 8729 states and 13653 transitions. [2022-01-10 13:38:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:32,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:32,907 INFO L225 Difference]: With dead ends: 8729 [2022-01-10 13:38:32,908 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:32,913 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 13:38:32,914 INFO L933 BasicCegarLoop]: 6579 mSDtfsCounter, 6560 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6560 SdHoareTripleChecker+Valid, 6579 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 13:38:32,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6560 Valid, 6579 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:32,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:33,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.622263109475621) internal successors, (8817), 5436 states have internal predecessors, (8817), 0 states have call successors, (0), 0 states 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 13:38:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8817 transitions. [2022-01-10 13:38:33,069 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8817 transitions. Word has length 165 [2022-01-10 13:38:33,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:33,070 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8817 transitions. [2022-01-10 13:38:33,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8817 transitions. [2022-01-10 13:38:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:33,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:33,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:33,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:38:33,085 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:33,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:33,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1328148788, now seen corresponding path program 1 times [2022-01-10 13:38:33,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:33,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916891739] [2022-01-10 13:38:33,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:33,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:33,141 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 13:38:33,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:33,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916891739] [2022-01-10 13:38:33,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916891739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:33,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:33,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:33,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499988393] [2022-01-10 13:38:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:33,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:33,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:33,142 INFO L87 Difference]: Start difference. First operand 5437 states and 8817 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:33,270 INFO L93 Difference]: Finished difference Result 8728 states and 13636 transitions. [2022-01-10 13:38:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:33,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:33,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:33,280 INFO L225 Difference]: With dead ends: 8728 [2022-01-10 13:38:33,281 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:33,286 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 13:38:33,287 INFO L933 BasicCegarLoop]: 6574 mSDtfsCounter, 6554 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6554 SdHoareTripleChecker+Valid, 6574 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 13:38:33,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6554 Valid, 6574 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:33,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6207911683532659) internal successors, (8809), 5436 states have internal predecessors, (8809), 0 states have call successors, (0), 0 states 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 13:38:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8809 transitions. [2022-01-10 13:38:33,425 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8809 transitions. Word has length 165 [2022-01-10 13:38:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:33,426 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8809 transitions. [2022-01-10 13:38:33,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8809 transitions. [2022-01-10 13:38:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:33,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:33,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:33,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:38:33,429 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1111451220, now seen corresponding path program 1 times [2022-01-10 13:38:33,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:33,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886189562] [2022-01-10 13:38:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:33,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:33,469 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 13:38:33,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:33,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886189562] [2022-01-10 13:38:33,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886189562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:33,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:33,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:33,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679439177] [2022-01-10 13:38:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:33,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:33,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:33,471 INFO L87 Difference]: Start difference. First operand 5437 states and 8809 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:33,599 INFO L93 Difference]: Finished difference Result 8727 states and 13619 transitions. [2022-01-10 13:38:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:33,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:33,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:33,609 INFO L225 Difference]: With dead ends: 8727 [2022-01-10 13:38:33,610 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:33,616 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 13:38:33,617 INFO L933 BasicCegarLoop]: 6569 mSDtfsCounter, 6548 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6548 SdHoareTripleChecker+Valid, 6569 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 13:38:33,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6548 Valid, 6569 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6193192272309107) internal successors, (8801), 5436 states have internal predecessors, (8801), 0 states have call successors, (0), 0 states 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 13:38:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8801 transitions. [2022-01-10 13:38:33,770 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8801 transitions. Word has length 165 [2022-01-10 13:38:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:33,770 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8801 transitions. [2022-01-10 13:38:33,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8801 transitions. [2022-01-10 13:38:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:33,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:33,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:33,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:38:33,772 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:33,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:33,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1243008308, now seen corresponding path program 1 times [2022-01-10 13:38:33,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:33,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105177695] [2022-01-10 13:38:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:33,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:33,814 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 13:38:33,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105177695] [2022-01-10 13:38:33,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105177695] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:33,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:33,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:33,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664816754] [2022-01-10 13:38:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:33,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:33,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:33,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:33,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:33,816 INFO L87 Difference]: Start difference. First operand 5437 states and 8801 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:33,948 INFO L93 Difference]: Finished difference Result 8726 states and 13602 transitions. [2022-01-10 13:38:33,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:33,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:33,961 INFO L225 Difference]: With dead ends: 8726 [2022-01-10 13:38:33,961 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:33,969 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 13:38:33,970 INFO L933 BasicCegarLoop]: 6564 mSDtfsCounter, 6542 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 6564 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 13:38:33,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 6564 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6178472861085555) internal successors, (8793), 5436 states have internal predecessors, (8793), 0 states have call successors, (0), 0 states 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 13:38:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8793 transitions. [2022-01-10 13:38:34,207 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8793 transitions. Word has length 165 [2022-01-10 13:38:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:34,208 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8793 transitions. [2022-01-10 13:38:34,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:34,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8793 transitions. [2022-01-10 13:38:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:34,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:34,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:34,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:38:34,210 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:34,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:34,210 INFO L85 PathProgramCache]: Analyzing trace with hash 138873428, now seen corresponding path program 1 times [2022-01-10 13:38:34,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:34,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861231178] [2022-01-10 13:38:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:34,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:34,247 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 13:38:34,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:34,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861231178] [2022-01-10 13:38:34,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861231178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:34,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:34,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:34,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302519126] [2022-01-10 13:38:34,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:34,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:34,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:34,249 INFO L87 Difference]: Start difference. First operand 5437 states and 8793 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:34,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:34,366 INFO L93 Difference]: Finished difference Result 8725 states and 13585 transitions. [2022-01-10 13:38:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:34,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:34,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:34,376 INFO L225 Difference]: With dead ends: 8725 [2022-01-10 13:38:34,377 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:34,382 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 13:38:34,382 INFO L933 BasicCegarLoop]: 6559 mSDtfsCounter, 6536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 6559 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 13:38:34,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 6559 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6163753449862006) internal successors, (8785), 5436 states have internal predecessors, (8785), 0 states have call successors, (0), 0 states 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 13:38:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8785 transitions. [2022-01-10 13:38:34,516 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8785 transitions. Word has length 165 [2022-01-10 13:38:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:34,516 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8785 transitions. [2022-01-10 13:38:34,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8785 transitions. [2022-01-10 13:38:34,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:34,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:34,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:34,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:38:34,518 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1836406476, now seen corresponding path program 1 times [2022-01-10 13:38:34,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:34,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037854935] [2022-01-10 13:38:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:34,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:34,554 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 13:38:34,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:34,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037854935] [2022-01-10 13:38:34,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037854935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:34,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:34,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:34,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861348721] [2022-01-10 13:38:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:34,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:34,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:34,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:34,556 INFO L87 Difference]: Start difference. First operand 5437 states and 8785 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:34,705 INFO L93 Difference]: Finished difference Result 8724 states and 13568 transitions. [2022-01-10 13:38:34,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:34,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:34,715 INFO L225 Difference]: With dead ends: 8724 [2022-01-10 13:38:34,715 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:34,721 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 13:38:34,722 INFO L933 BasicCegarLoop]: 6554 mSDtfsCounter, 6530 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6530 SdHoareTripleChecker+Valid, 6554 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 13:38:34,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6530 Valid, 6554 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:34,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6149034038638455) internal successors, (8777), 5436 states have internal predecessors, (8777), 0 states have call successors, (0), 0 states 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 13:38:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8777 transitions. [2022-01-10 13:38:34,861 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8777 transitions. Word has length 165 [2022-01-10 13:38:34,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:34,861 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8777 transitions. [2022-01-10 13:38:34,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8777 transitions. [2022-01-10 13:38:34,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:34,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:34,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:34,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:38:34,863 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:34,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash 870821460, now seen corresponding path program 1 times [2022-01-10 13:38:34,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:34,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303558702] [2022-01-10 13:38:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:34,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:34,900 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 13:38:34,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:34,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303558702] [2022-01-10 13:38:34,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303558702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:34,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:34,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:34,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327948631] [2022-01-10 13:38:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:34,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:34,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:34,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:34,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:34,902 INFO L87 Difference]: Start difference. First operand 5437 states and 8777 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:35,033 INFO L93 Difference]: Finished difference Result 8723 states and 13551 transitions. [2022-01-10 13:38:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:35,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:35,045 INFO L225 Difference]: With dead ends: 8723 [2022-01-10 13:38:35,045 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:35,051 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 13:38:35,052 INFO L933 BasicCegarLoop]: 6549 mSDtfsCounter, 6524 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 6549 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 13:38:35,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6524 Valid, 6549 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6134314627414903) internal successors, (8769), 5436 states have internal predecessors, (8769), 0 states have call successors, (0), 0 states 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 13:38:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8769 transitions. [2022-01-10 13:38:35,219 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8769 transitions. Word has length 165 [2022-01-10 13:38:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:35,219 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8769 transitions. [2022-01-10 13:38:35,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8769 transitions. [2022-01-10 13:38:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:35,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:35,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:35,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:38:35,221 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash -565869260, now seen corresponding path program 1 times [2022-01-10 13:38:35,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:35,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750133646] [2022-01-10 13:38:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:35,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:35,261 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 13:38:35,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:35,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750133646] [2022-01-10 13:38:35,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750133646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:35,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:35,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:35,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960212655] [2022-01-10 13:38:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:35,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:35,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:35,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:35,263 INFO L87 Difference]: Start difference. First operand 5437 states and 8769 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:35,389 INFO L93 Difference]: Finished difference Result 8722 states and 13534 transitions. [2022-01-10 13:38:35,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:35,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:35,400 INFO L225 Difference]: With dead ends: 8722 [2022-01-10 13:38:35,401 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:35,407 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 13:38:35,408 INFO L933 BasicCegarLoop]: 6544 mSDtfsCounter, 6518 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6518 SdHoareTripleChecker+Valid, 6544 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 13:38:35,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6518 Valid, 6544 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6119595216191351) internal successors, (8761), 5436 states have internal predecessors, (8761), 0 states have call successors, (0), 0 states 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 13:38:35,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8761 transitions. [2022-01-10 13:38:35,537 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8761 transitions. Word has length 165 [2022-01-10 13:38:35,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:35,537 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8761 transitions. [2022-01-10 13:38:35,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8761 transitions. [2022-01-10 13:38:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:35,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:35,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:35,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:38:35,539 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:35,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1465995860, now seen corresponding path program 1 times [2022-01-10 13:38:35,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411795164] [2022-01-10 13:38:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:35,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:35,580 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 13:38:35,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:35,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411795164] [2022-01-10 13:38:35,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411795164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:35,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:35,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:35,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897443970] [2022-01-10 13:38:35,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:35,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:35,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:35,581 INFO L87 Difference]: Start difference. First operand 5437 states and 8761 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:35,753 INFO L93 Difference]: Finished difference Result 8721 states and 13517 transitions. [2022-01-10 13:38:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:35,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:35,763 INFO L225 Difference]: With dead ends: 8721 [2022-01-10 13:38:35,764 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:35,771 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 13:38:35,772 INFO L933 BasicCegarLoop]: 6509 mSDtfsCounter, 6365 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6365 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:35,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6365 Valid, 6637 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:35,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.6053357865685371) internal successors, (8725), 5436 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states 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 13:38:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8725 transitions. [2022-01-10 13:38:35,934 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8725 transitions. Word has length 165 [2022-01-10 13:38:35,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:35,934 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8725 transitions. [2022-01-10 13:38:35,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:35,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8725 transitions. [2022-01-10 13:38:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:35,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:35,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:35,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:38:35,936 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:35,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:35,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1090569293, now seen corresponding path program 1 times [2022-01-10 13:38:35,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:35,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578245159] [2022-01-10 13:38:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:35,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:35,985 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 13:38:35,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:35,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578245159] [2022-01-10 13:38:35,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578245159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:35,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:35,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:35,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711338116] [2022-01-10 13:38:35,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:35,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:35,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:35,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:35,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:35,987 INFO L87 Difference]: Start difference. First operand 5437 states and 8725 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:36,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:36,148 INFO L93 Difference]: Finished difference Result 8720 states and 13444 transitions. [2022-01-10 13:38:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:36,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:36,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:36,159 INFO L225 Difference]: With dead ends: 8720 [2022-01-10 13:38:36,159 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:36,165 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 13:38:36,166 INFO L933 BasicCegarLoop]: 6489 mSDtfsCounter, 6345 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6345 SdHoareTripleChecker+Valid, 6616 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:36,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6345 Valid, 6616 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5987120515179394) internal successors, (8689), 5436 states have internal predecessors, (8689), 0 states have call successors, (0), 0 states 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 13:38:36,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8689 transitions. [2022-01-10 13:38:36,358 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8689 transitions. Word has length 165 [2022-01-10 13:38:36,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:36,358 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8689 transitions. [2022-01-10 13:38:36,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:36,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8689 transitions. [2022-01-10 13:38:36,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:36,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:36,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:36,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:38:36,360 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash -797100398, now seen corresponding path program 1 times [2022-01-10 13:38:36,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:36,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316479254] [2022-01-10 13:38:36,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:36,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:36,406 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 13:38:36,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:36,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316479254] [2022-01-10 13:38:36,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316479254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:36,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:36,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:36,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281845729] [2022-01-10 13:38:36,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:36,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:36,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:36,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:36,408 INFO L87 Difference]: Start difference. First operand 5437 states and 8689 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:36,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:36,562 INFO L93 Difference]: Finished difference Result 8718 states and 13369 transitions. [2022-01-10 13:38:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:36,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:36,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:36,571 INFO L225 Difference]: With dead ends: 8718 [2022-01-10 13:38:36,571 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:36,578 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 13:38:36,579 INFO L933 BasicCegarLoop]: 6469 mSDtfsCounter, 6324 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6324 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:36,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6324 Valid, 6595 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:36,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5920883164673414) internal successors, (8653), 5436 states have internal predecessors, (8653), 0 states have call successors, (0), 0 states 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 13:38:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8653 transitions. [2022-01-10 13:38:36,718 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8653 transitions. Word has length 165 [2022-01-10 13:38:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:36,718 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8653 transitions. [2022-01-10 13:38:36,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8653 transitions. [2022-01-10 13:38:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:36,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:36,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:36,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:38:36,720 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:36,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1292804111, now seen corresponding path program 1 times [2022-01-10 13:38:36,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:36,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78622972] [2022-01-10 13:38:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:36,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:36,759 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 13:38:36,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:36,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78622972] [2022-01-10 13:38:36,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78622972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:36,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:36,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:36,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039336172] [2022-01-10 13:38:36,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:36,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:36,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:36,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:36,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:36,760 INFO L87 Difference]: Start difference. First operand 5437 states and 8653 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:36,911 INFO L93 Difference]: Finished difference Result 8717 states and 13296 transitions. [2022-01-10 13:38:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:36,920 INFO L225 Difference]: With dead ends: 8717 [2022-01-10 13:38:36,921 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:36,925 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 13:38:36,926 INFO L933 BasicCegarLoop]: 6449 mSDtfsCounter, 6304 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6304 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:36,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6304 Valid, 6574 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:37,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5854645814167434) internal successors, (8617), 5436 states have internal predecessors, (8617), 0 states have call successors, (0), 0 states 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 13:38:37,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8617 transitions. [2022-01-10 13:38:37,068 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8617 transitions. Word has length 165 [2022-01-10 13:38:37,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:37,068 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8617 transitions. [2022-01-10 13:38:37,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8617 transitions. [2022-01-10 13:38:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:37,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:37,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:37,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:38:37,070 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:37,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1517848144, now seen corresponding path program 1 times [2022-01-10 13:38:37,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:37,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702421733] [2022-01-10 13:38:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:37,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:37,107 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 13:38:37,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:37,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702421733] [2022-01-10 13:38:37,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702421733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:37,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:37,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:37,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759941629] [2022-01-10 13:38:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:37,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:37,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:37,109 INFO L87 Difference]: Start difference. First operand 5437 states and 8617 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:37,267 INFO L93 Difference]: Finished difference Result 8716 states and 13223 transitions. [2022-01-10 13:38:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:37,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:37,277 INFO L225 Difference]: With dead ends: 8716 [2022-01-10 13:38:37,277 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:37,283 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 13:38:37,284 INFO L933 BasicCegarLoop]: 6429 mSDtfsCounter, 6284 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6284 SdHoareTripleChecker+Valid, 6553 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:37,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6284 Valid, 6553 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5788408463661454) internal successors, (8581), 5436 states have internal predecessors, (8581), 0 states have call successors, (0), 0 states 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 13:38:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8581 transitions. [2022-01-10 13:38:37,432 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8581 transitions. Word has length 165 [2022-01-10 13:38:37,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:37,432 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8581 transitions. [2022-01-10 13:38:37,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8581 transitions. [2022-01-10 13:38:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:37,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:37,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:37,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:38:37,434 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:37,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:37,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1090166319, now seen corresponding path program 1 times [2022-01-10 13:38:37,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:37,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418751958] [2022-01-10 13:38:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:37,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:37,468 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 13:38:37,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:37,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418751958] [2022-01-10 13:38:37,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418751958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:37,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:37,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:37,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213693251] [2022-01-10 13:38:37,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:37,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:37,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:37,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:37,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:37,469 INFO L87 Difference]: Start difference. First operand 5437 states and 8581 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:37,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:37,623 INFO L93 Difference]: Finished difference Result 8715 states and 13150 transitions. [2022-01-10 13:38:37,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:37,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:37,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:37,633 INFO L225 Difference]: With dead ends: 8715 [2022-01-10 13:38:37,633 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:37,639 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 13:38:37,640 INFO L933 BasicCegarLoop]: 6409 mSDtfsCounter, 6264 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6264 SdHoareTripleChecker+Valid, 6532 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:37,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6264 Valid, 6532 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:37,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:37,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5722171113155474) internal successors, (8545), 5436 states have internal predecessors, (8545), 0 states have call successors, (0), 0 states 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 13:38:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8545 transitions. [2022-01-10 13:38:37,786 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8545 transitions. Word has length 165 [2022-01-10 13:38:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:37,787 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8545 transitions. [2022-01-10 13:38:37,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8545 transitions. [2022-01-10 13:38:37,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:37,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:37,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:37,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:38:37,789 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:37,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:37,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1064043278, now seen corresponding path program 1 times [2022-01-10 13:38:37,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:37,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177457541] [2022-01-10 13:38:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:37,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:37,824 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 13:38:37,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177457541] [2022-01-10 13:38:37,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177457541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:37,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:37,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:37,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347891529] [2022-01-10 13:38:37,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:37,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:37,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:37,826 INFO L87 Difference]: Start difference. First operand 5437 states and 8545 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:38,053 INFO L93 Difference]: Finished difference Result 8714 states and 13077 transitions. [2022-01-10 13:38:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:38,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:38,062 INFO L225 Difference]: With dead ends: 8714 [2022-01-10 13:38:38,062 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:38,066 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 13:38:38,067 INFO L933 BasicCegarLoop]: 6389 mSDtfsCounter, 6244 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6244 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:38,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6244 Valid, 6511 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:38,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5655933762649494) internal successors, (8509), 5436 states have internal predecessors, (8509), 0 states have call successors, (0), 0 states 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 13:38:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8509 transitions. [2022-01-10 13:38:38,219 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8509 transitions. Word has length 165 [2022-01-10 13:38:38,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:38,220 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8509 transitions. [2022-01-10 13:38:38,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8509 transitions. [2022-01-10 13:38:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:38,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:38,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:38,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:38:38,221 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:38,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1003239059, now seen corresponding path program 1 times [2022-01-10 13:38:38,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:38,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232724140] [2022-01-10 13:38:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:38,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:38,274 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 13:38:38,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232724140] [2022-01-10 13:38:38,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232724140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:38,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:38,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:38,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925452954] [2022-01-10 13:38:38,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:38,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:38,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:38,276 INFO L87 Difference]: Start difference. First operand 5437 states and 8509 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:38,433 INFO L93 Difference]: Finished difference Result 8713 states and 13004 transitions. [2022-01-10 13:38:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:38,443 INFO L225 Difference]: With dead ends: 8713 [2022-01-10 13:38:38,443 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:38,447 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 13:38:38,448 INFO L933 BasicCegarLoop]: 6369 mSDtfsCounter, 6224 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6224 SdHoareTripleChecker+Valid, 6490 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:38,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6224 Valid, 6490 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5589696412143514) internal successors, (8473), 5436 states have internal predecessors, (8473), 0 states have call successors, (0), 0 states 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 13:38:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8473 transitions. [2022-01-10 13:38:38,600 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8473 transitions. Word has length 165 [2022-01-10 13:38:38,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:38,601 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8473 transitions. [2022-01-10 13:38:38,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8473 transitions. [2022-01-10 13:38:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:38,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:38,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:38,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:38:38,602 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:38,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904524, now seen corresponding path program 1 times [2022-01-10 13:38:38,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:38,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265606547] [2022-01-10 13:38:38,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:38,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:38,647 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 13:38:38,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:38,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265606547] [2022-01-10 13:38:38,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265606547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:38,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:38,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:38,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713360873] [2022-01-10 13:38:38,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:38,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:38,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:38,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:38,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:38,650 INFO L87 Difference]: Start difference. First operand 5437 states and 8473 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:38,817 INFO L93 Difference]: Finished difference Result 8712 states and 12931 transitions. [2022-01-10 13:38:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:38,826 INFO L225 Difference]: With dead ends: 8712 [2022-01-10 13:38:38,827 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:38,831 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 13:38:38,832 INFO L933 BasicCegarLoop]: 6349 mSDtfsCounter, 6204 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6204 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:38,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6204 Valid, 6469 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:38,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5523459061637535) internal successors, (8437), 5436 states have internal predecessors, (8437), 0 states have call successors, (0), 0 states 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 13:38:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8437 transitions. [2022-01-10 13:38:39,003 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8437 transitions. Word has length 165 [2022-01-10 13:38:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:39,005 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8437 transitions. [2022-01-10 13:38:39,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8437 transitions. [2022-01-10 13:38:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:39,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:39,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:39,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:38:39,008 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1609014869, now seen corresponding path program 1 times [2022-01-10 13:38:39,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681079744] [2022-01-10 13:38:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:39,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:39,049 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 13:38:39,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:39,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681079744] [2022-01-10 13:38:39,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681079744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:39,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:39,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:39,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576829201] [2022-01-10 13:38:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:39,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:39,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:39,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:39,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:39,051 INFO L87 Difference]: Start difference. First operand 5437 states and 8437 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:39,228 INFO L93 Difference]: Finished difference Result 8711 states and 12858 transitions. [2022-01-10 13:38:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:39,237 INFO L225 Difference]: With dead ends: 8711 [2022-01-10 13:38:39,237 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:39,241 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 13:38:39,242 INFO L933 BasicCegarLoop]: 6329 mSDtfsCounter, 6184 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6184 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:39,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6184 Valid, 6448 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5457221711131555) internal successors, (8401), 5436 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states 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 13:38:39,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8401 transitions. [2022-01-10 13:38:39,396 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8401 transitions. Word has length 165 [2022-01-10 13:38:39,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:39,396 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8401 transitions. [2022-01-10 13:38:39,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:39,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8401 transitions. [2022-01-10 13:38:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:39,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:39,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:39,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:38:39,398 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1461091446, now seen corresponding path program 1 times [2022-01-10 13:38:39,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:39,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252245073] [2022-01-10 13:38:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:39,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:38:39,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:39,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252245073] [2022-01-10 13:38:39,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252245073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:39,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:39,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:39,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270156531] [2022-01-10 13:38:39,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:39,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:39,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:39,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:39,434 INFO L87 Difference]: Start difference. First operand 5437 states and 8401 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:39,646 INFO L93 Difference]: Finished difference Result 8710 states and 12785 transitions. [2022-01-10 13:38:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:39,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:39,656 INFO L225 Difference]: With dead ends: 8710 [2022-01-10 13:38:39,656 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:39,661 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 13:38:39,661 INFO L933 BasicCegarLoop]: 6309 mSDtfsCounter, 6164 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6164 SdHoareTripleChecker+Valid, 6427 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:39,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6164 Valid, 6427 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5390984360625575) internal successors, (8365), 5436 states have internal predecessors, (8365), 0 states have call successors, (0), 0 states 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 13:38:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8365 transitions. [2022-01-10 13:38:39,829 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8365 transitions. Word has length 165 [2022-01-10 13:38:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:39,829 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8365 transitions. [2022-01-10 13:38:39,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8365 transitions. [2022-01-10 13:38:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:39,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:39,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:39,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:38:39,831 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:39,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:39,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1014497450, now seen corresponding path program 1 times [2022-01-10 13:38:39,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:39,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695100985] [2022-01-10 13:38:39,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:39,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:39,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:38:39,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695100985] [2022-01-10 13:38:39,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695100985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:39,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:39,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:39,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129293485] [2022-01-10 13:38:39,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:39,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:39,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:39,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:39,871 INFO L87 Difference]: Start difference. First operand 5437 states and 8365 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:40,056 INFO L93 Difference]: Finished difference Result 8709 states and 12712 transitions. [2022-01-10 13:38:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:40,068 INFO L225 Difference]: With dead ends: 8709 [2022-01-10 13:38:40,068 INFO L226 Difference]: Without dead ends: 5437 [2022-01-10 13:38:40,073 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 13:38:40,073 INFO L933 BasicCegarLoop]: 6289 mSDtfsCounter, 6144 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6144 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:40,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6144 Valid, 6406 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-01-10 13:38:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5437. [2022-01-10 13:38:40,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5435 states have (on average 1.5324747010119595) internal successors, (8329), 5436 states have internal predecessors, (8329), 0 states have call successors, (0), 0 states 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 13:38:40,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8329 transitions. [2022-01-10 13:38:40,255 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8329 transitions. Word has length 165 [2022-01-10 13:38:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:40,255 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 8329 transitions. [2022-01-10 13:38:40,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8329 transitions. [2022-01-10 13:38:40,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:40,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:40,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:40,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:38:40,257 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:40,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1795251959, now seen corresponding path program 1 times [2022-01-10 13:38:40,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:40,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406408667] [2022-01-10 13:38:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:40,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:40,323 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 13:38:40,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:40,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406408667] [2022-01-10 13:38:40,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406408667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:40,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:40,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:38:40,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548192556] [2022-01-10 13:38:40,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:40,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:38:40,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:40,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:38:40,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:38:40,324 INFO L87 Difference]: Start difference. First operand 5437 states and 8329 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:40,739 INFO L93 Difference]: Finished difference Result 9821 states and 14177 transitions. [2022-01-10 13:38:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:38:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:40,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:40,754 INFO L225 Difference]: With dead ends: 9821 [2022-01-10 13:38:40,754 INFO L226 Difference]: Without dead ends: 6563 [2022-01-10 13:38:40,761 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 13:38:40,762 INFO L933 BasicCegarLoop]: 6455 mSDtfsCounter, 6580 mSDsluCounter, 14230 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 20685 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:40,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6580 Valid, 20685 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:40,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2022-01-10 13:38:40,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 5443. [2022-01-10 13:38:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5441 states have (on average 1.526741407829443) internal successors, (8307), 5442 states have internal predecessors, (8307), 0 states have call successors, (0), 0 states 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 13:38:40,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 8307 transitions. [2022-01-10 13:38:40,992 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 8307 transitions. Word has length 165 [2022-01-10 13:38:40,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:40,992 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 8307 transitions. [2022-01-10 13:38:40,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:40,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 8307 transitions. [2022-01-10 13:38:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:40,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:40,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:40,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:38:40,994 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1980423050, now seen corresponding path program 1 times [2022-01-10 13:38:40,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:40,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311888900] [2022-01-10 13:38:40,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:40,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:41,041 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 13:38:41,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:41,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311888900] [2022-01-10 13:38:41,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311888900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:41,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:41,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:41,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880805986] [2022-01-10 13:38:41,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:41,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:41,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:41,043 INFO L87 Difference]: Start difference. First operand 5443 states and 8307 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:41,479 INFO L93 Difference]: Finished difference Result 11646 states and 16418 transitions. [2022-01-10 13:38:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:41,492 INFO L225 Difference]: With dead ends: 11646 [2022-01-10 13:38:41,492 INFO L226 Difference]: Without dead ends: 8384 [2022-01-10 13:38:41,497 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 13:38:41,497 INFO L933 BasicCegarLoop]: 6275 mSDtfsCounter, 6066 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6066 SdHoareTripleChecker+Valid, 8370 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:41,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6066 Valid, 8370 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-01-10 13:38:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8378. [2022-01-10 13:38:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 8376 states have (on average 1.4461556829035338) internal successors, (12113), 8377 states have internal predecessors, (12113), 0 states have call successors, (0), 0 states 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 13:38:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 12113 transitions. [2022-01-10 13:38:41,850 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 12113 transitions. Word has length 165 [2022-01-10 13:38:41,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:41,850 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 12113 transitions. [2022-01-10 13:38:41,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:41,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 12113 transitions. [2022-01-10 13:38:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:41,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:41,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:41,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:38:41,852 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:41,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1861272439, now seen corresponding path program 1 times [2022-01-10 13:38:41,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:41,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056913931] [2022-01-10 13:38:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:41,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:41,897 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 13:38:41,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:41,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056913931] [2022-01-10 13:38:41,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056913931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:41,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:41,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:38:41,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216276479] [2022-01-10 13:38:41,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:41,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:38:41,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:41,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:38:41,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:38:41,899 INFO L87 Difference]: Start difference. First operand 8378 states and 12113 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:42,527 INFO L93 Difference]: Finished difference Result 18345 states and 25215 transitions. [2022-01-10 13:38:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:38:42,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:42,547 INFO L225 Difference]: With dead ends: 18345 [2022-01-10 13:38:42,548 INFO L226 Difference]: Without dead ends: 12180 [2022-01-10 13:38:42,557 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 13:38:42,557 INFO L933 BasicCegarLoop]: 6343 mSDtfsCounter, 5720 mSDsluCounter, 16071 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5720 SdHoareTripleChecker+Valid, 22414 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:42,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5720 Valid, 22414 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:42,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12180 states. [2022-01-10 13:38:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12180 to 8390. [2022-01-10 13:38:42,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8390 states, 8388 states have (on average 1.4391988555078683) internal successors, (12072), 8389 states have internal predecessors, (12072), 0 states have call successors, (0), 0 states 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 13:38:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 12072 transitions. [2022-01-10 13:38:43,006 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 12072 transitions. Word has length 165 [2022-01-10 13:38:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:43,007 INFO L470 AbstractCegarLoop]: Abstraction has 8390 states and 12072 transitions. [2022-01-10 13:38:43,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 12072 transitions. [2022-01-10 13:38:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:43,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:43,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:43,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:38:43,008 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1741152566, now seen corresponding path program 1 times [2022-01-10 13:38:43,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:43,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836541984] [2022-01-10 13:38:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:43,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:43,064 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 13:38:43,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:43,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836541984] [2022-01-10 13:38:43,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836541984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:43,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:43,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:38:43,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011319297] [2022-01-10 13:38:43,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:43,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:38:43,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:43,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:38:43,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:38:43,066 INFO L87 Difference]: Start difference. First operand 8390 states and 12072 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:43,785 INFO L93 Difference]: Finished difference Result 18696 states and 25505 transitions. [2022-01-10 13:38:43,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:38:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:43,804 INFO L225 Difference]: With dead ends: 18696 [2022-01-10 13:38:43,804 INFO L226 Difference]: Without dead ends: 12526 [2022-01-10 13:38:43,814 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 13:38:43,814 INFO L933 BasicCegarLoop]: 6310 mSDtfsCounter, 5529 mSDsluCounter, 16400 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5529 SdHoareTripleChecker+Valid, 22710 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:43,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5529 Valid, 22710 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2022-01-10 13:38:44,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 8402. [2022-01-10 13:38:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.4322619047619047) internal successors, (12031), 8401 states have internal predecessors, (12031), 0 states have call successors, (0), 0 states 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 13:38:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 12031 transitions. [2022-01-10 13:38:44,298 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 12031 transitions. Word has length 165 [2022-01-10 13:38:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:44,298 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 12031 transitions. [2022-01-10 13:38:44,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 12031 transitions. [2022-01-10 13:38:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:44,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:44,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:44,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:38:44,300 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1598293451, now seen corresponding path program 1 times [2022-01-10 13:38:44,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:44,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272990007] [2022-01-10 13:38:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:44,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:44,345 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 13:38:44,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:44,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272990007] [2022-01-10 13:38:44,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272990007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:44,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:44,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:44,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277696026] [2022-01-10 13:38:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:44,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:44,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:44,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:44,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:44,346 INFO L87 Difference]: Start difference. First operand 8402 states and 12031 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:44,737 INFO L93 Difference]: Finished difference Result 14663 states and 20070 transitions. [2022-01-10 13:38:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:44,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:44,748 INFO L225 Difference]: With dead ends: 14663 [2022-01-10 13:38:44,748 INFO L226 Difference]: Without dead ends: 8402 [2022-01-10 13:38:44,754 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 13:38:44,755 INFO L933 BasicCegarLoop]: 6251 mSDtfsCounter, 6131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6131 SdHoareTripleChecker+Valid, 6251 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 13:38:44,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6131 Valid, 6251 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-01-10 13:38:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 8402. [2022-01-10 13:38:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.430595238095238) internal successors, (12017), 8401 states have internal predecessors, (12017), 0 states have call successors, (0), 0 states 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 13:38:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 12017 transitions. [2022-01-10 13:38:45,192 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 12017 transitions. Word has length 165 [2022-01-10 13:38:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:45,192 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 12017 transitions. [2022-01-10 13:38:45,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 12017 transitions. [2022-01-10 13:38:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:45,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:45,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:45,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 13:38:45,193 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:45,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:45,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1235093846, now seen corresponding path program 1 times [2022-01-10 13:38:45,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:45,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144923154] [2022-01-10 13:38:45,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:45,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:45,242 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 13:38:45,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144923154] [2022-01-10 13:38:45,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144923154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:45,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:45,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:45,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360726970] [2022-01-10 13:38:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:45,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:45,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:45,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:45,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:45,244 INFO L87 Difference]: Start difference. First operand 8402 states and 12017 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:45,740 INFO L93 Difference]: Finished difference Result 14649 states and 20028 transitions. [2022-01-10 13:38:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:45,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:45,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:45,753 INFO L225 Difference]: With dead ends: 14649 [2022-01-10 13:38:45,753 INFO L226 Difference]: Without dead ends: 8402 [2022-01-10 13:38:45,758 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 13:38:45,759 INFO L933 BasicCegarLoop]: 6218 mSDtfsCounter, 5981 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5981 SdHoareTripleChecker+Valid, 6331 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:45,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5981 Valid, 6331 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:45,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-01-10 13:38:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 8402. [2022-01-10 13:38:46,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8402 states, 8400 states have (on average 1.4257142857142857) internal successors, (11976), 8401 states have internal predecessors, (11976), 0 states have call successors, (0), 0 states 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 13:38:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8402 states to 8402 states and 11976 transitions. [2022-01-10 13:38:46,171 INFO L78 Accepts]: Start accepts. Automaton has 8402 states and 11976 transitions. Word has length 165 [2022-01-10 13:38:46,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 8402 states and 11976 transitions. [2022-01-10 13:38:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8402 states and 11976 transitions. [2022-01-10 13:38:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-10 13:38:46,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:46,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:46,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 13:38:46,173 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:46,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1204074039, now seen corresponding path program 1 times [2022-01-10 13:38:46,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:46,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573914681] [2022-01-10 13:38:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:46,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:46,250 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 13:38:46,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:46,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573914681] [2022-01-10 13:38:46,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573914681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:46,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:46,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:38:46,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627114811] [2022-01-10 13:38:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:46,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:46,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:46,252 INFO L87 Difference]: Start difference. First operand 8402 states and 11976 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:47,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:47,118 INFO L93 Difference]: Finished difference Result 20685 states and 27673 transitions. [2022-01-10 13:38:47,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:47,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2022-01-10 13:38:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:47,144 INFO L225 Difference]: With dead ends: 20685 [2022-01-10 13:38:47,145 INFO L226 Difference]: Without dead ends: 14450 [2022-01-10 13:38:47,152 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 13:38:47,152 INFO L933 BasicCegarLoop]: 6218 mSDtfsCounter, 6035 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6035 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:47,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6035 Valid, 8265 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:47,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14450 states. [2022-01-10 13:38:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14450 to 14080. [2022-01-10 13:38:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14080 states, 14078 states have (on average 1.3631197613297343) internal successors, (19190), 14079 states have internal predecessors, (19190), 0 states have call successors, (0), 0 states 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 13:38:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14080 states to 14080 states and 19190 transitions. [2022-01-10 13:38:47,909 INFO L78 Accepts]: Start accepts. Automaton has 14080 states and 19190 transitions. Word has length 165 [2022-01-10 13:38:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:47,910 INFO L470 AbstractCegarLoop]: Abstraction has 14080 states and 19190 transitions. [2022-01-10 13:38:47,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 13:38:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 14080 states and 19190 transitions. [2022-01-10 13:38:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:38:47,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:47,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:47,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 13:38:47,917 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1028298530, now seen corresponding path program 1 times [2022-01-10 13:38:47,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:47,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356041595] [2022-01-10 13:38:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:47,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:47,980 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 13:38:47,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:47,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356041595] [2022-01-10 13:38:47,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356041595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:47,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:47,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:38:47,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466914168] [2022-01-10 13:38:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:47,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:47,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:47,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:47,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:47,982 INFO L87 Difference]: Start difference. First operand 14080 states and 19190 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:38:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:49,486 INFO L93 Difference]: Finished difference Result 37588 states and 49167 transitions. [2022-01-10 13:38:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:49,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-10 13:38:49,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:49,521 INFO L225 Difference]: With dead ends: 37588 [2022-01-10 13:38:49,521 INFO L226 Difference]: Without dead ends: 25681 [2022-01-10 13:38:49,538 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 13:38:49,538 INFO L933 BasicCegarLoop]: 6215 mSDtfsCounter, 6068 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:49,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6068 Valid, 8262 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:49,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25681 states. [2022-01-10 13:38:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25681 to 25003. [2022-01-10 13:38:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25003 states, 25001 states have (on average 1.3221871125154994) internal successors, (33056), 25002 states have internal predecessors, (33056), 0 states have call successors, (0), 0 states 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 13:38:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25003 states to 25003 states and 33056 transitions. [2022-01-10 13:38:51,215 INFO L78 Accepts]: Start accepts. Automaton has 25003 states and 33056 transitions. Word has length 268 [2022-01-10 13:38:51,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:51,215 INFO L470 AbstractCegarLoop]: Abstraction has 25003 states and 33056 transitions. [2022-01-10 13:38:51,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:38:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 25003 states and 33056 transitions. [2022-01-10 13:38:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:38:51,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:51,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:51,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 13:38:51,227 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 866680546, now seen corresponding path program 1 times [2022-01-10 13:38:51,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:51,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310659880] [2022-01-10 13:38:51,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:51,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:51,305 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 13:38:51,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:51,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310659880] [2022-01-10 13:38:51,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310659880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:51,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:51,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:38:51,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283215479] [2022-01-10 13:38:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:51,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:38:51,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:38:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:38:51,307 INFO L87 Difference]: Start difference. First operand 25003 states and 33056 transitions. Second operand has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:38:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:54,246 INFO L93 Difference]: Finished difference Result 66783 states and 86497 transitions. [2022-01-10 13:38:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:38:54,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-10 13:38:54,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:54,304 INFO L225 Difference]: With dead ends: 66783 [2022-01-10 13:38:54,304 INFO L226 Difference]: Without dead ends: 44019 [2022-01-10 13:38:54,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 13:38:54,334 INFO L933 BasicCegarLoop]: 6193 mSDtfsCounter, 4958 mSDsluCounter, 16927 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 23120 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:54,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4958 Valid, 23120 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:38:54,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44019 states. [2022-01-10 13:38:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44019 to 25051. [2022-01-10 13:38:56,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25051 states, 25049 states have (on average 1.3138648249431115) internal successors, (32911), 25050 states have internal predecessors, (32911), 0 states have call successors, (0), 0 states 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 13:38:56,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25051 states to 25051 states and 32911 transitions. [2022-01-10 13:38:56,212 INFO L78 Accepts]: Start accepts. Automaton has 25051 states and 32911 transitions. Word has length 268 [2022-01-10 13:38:56,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:38:56,212 INFO L470 AbstractCegarLoop]: Abstraction has 25051 states and 32911 transitions. [2022-01-10 13:38:56,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:38:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 25051 states and 32911 transitions. [2022-01-10 13:38:56,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:38:56,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:38:56,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:38:56,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 13:38:56,223 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:38:56,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:38:56,223 INFO L85 PathProgramCache]: Analyzing trace with hash -916837536, now seen corresponding path program 1 times [2022-01-10 13:38:56,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:38:56,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474810442] [2022-01-10 13:38:56,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:38:56,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:38:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:38:56,283 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 13:38:56,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:38:56,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474810442] [2022-01-10 13:38:56,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474810442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:38:56,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:38:56,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:38:56,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506476489] [2022-01-10 13:38:56,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:38:56,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:38:56,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:38:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:38:56,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:38:56,285 INFO L87 Difference]: Start difference. First operand 25051 states and 32911 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:38:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:38:59,603 INFO L93 Difference]: Finished difference Result 69409 states and 88541 transitions. [2022-01-10 13:38:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:38:59,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2022-01-10 13:38:59,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:38:59,665 INFO L225 Difference]: With dead ends: 69409 [2022-01-10 13:38:59,665 INFO L226 Difference]: Without dead ends: 46639 [2022-01-10 13:38:59,690 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 13:38:59,690 INFO L933 BasicCegarLoop]: 7640 mSDtfsCounter, 5783 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:38:59,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5783 Valid, 9880 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:38:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46639 states. [2022-01-10 13:39:03,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46639 to 46637. [2022-01-10 13:39:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46637 states, 46635 states have (on average 1.2804760373110324) internal successors, (59715), 46636 states have internal predecessors, (59715), 0 states have call successors, (0), 0 states 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 13:39:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46637 states to 46637 states and 59715 transitions. [2022-01-10 13:39:03,233 INFO L78 Accepts]: Start accepts. Automaton has 46637 states and 59715 transitions. Word has length 268 [2022-01-10 13:39:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:39:03,233 INFO L470 AbstractCegarLoop]: Abstraction has 46637 states and 59715 transitions. [2022-01-10 13:39:03,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 13:39:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 46637 states and 59715 transitions. [2022-01-10 13:39:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-01-10 13:39:03,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:39:03,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:39:03,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 13:39:03,249 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:39:03,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:39:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash -432200705, now seen corresponding path program 1 times [2022-01-10 13:39:03,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:39:03,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775108860] [2022-01-10 13:39:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:39:03,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:39:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:39:03,281 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 13:39:03,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:39:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775108860] [2022-01-10 13:39:03,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775108860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:39:03,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:39:03,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:39:03,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249107139] [2022-01-10 13:39:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:39:03,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:39:03,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:39:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:39:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:39:03,282 INFO L87 Difference]: Start difference. First operand 46637 states and 59715 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 13:39:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:39:06,955 INFO L93 Difference]: Finished difference Result 90839 states and 115096 transitions. [2022-01-10 13:39:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:39:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 268 [2022-01-10 13:39:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:39:07,017 INFO L225 Difference]: With dead ends: 90839 [2022-01-10 13:39:07,018 INFO L226 Difference]: Without dead ends: 46483 [2022-01-10 13:39:07,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:39:07,044 INFO L933 BasicCegarLoop]: 6216 mSDtfsCounter, 2254 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 10174 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 13:39:07,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2254 Valid, 10174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:39:07,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46483 states. [2022-01-10 13:39:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46483 to 46483. [2022-01-10 13:39:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46483 states, 46481 states have (on average 1.280738366214152) internal successors, (59530), 46482 states have internal predecessors, (59530), 0 states have call successors, (0), 0 states 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 13:39:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46483 states to 46483 states and 59530 transitions. [2022-01-10 13:39:10,499 INFO L78 Accepts]: Start accepts. Automaton has 46483 states and 59530 transitions. Word has length 268 [2022-01-10 13:39:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:39:10,499 INFO L470 AbstractCegarLoop]: Abstraction has 46483 states and 59530 transitions. [2022-01-10 13:39:10,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 13:39:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 46483 states and 59530 transitions. [2022-01-10 13:39:10,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-01-10 13:39:10,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:39:10,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:39:10,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 13:39:10,514 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:39:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:39:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash -502289946, now seen corresponding path program 1 times [2022-01-10 13:39:10,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:39:10,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800204397] [2022-01-10 13:39:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:39:10,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:39:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:39:10,569 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 13:39:10,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:39:10,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800204397] [2022-01-10 13:39:10,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800204397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:39:10,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:39:10,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:39:10,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451910084] [2022-01-10 13:39:10,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:39:10,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:39:10,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:39:10,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:39:10,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:39:10,570 INFO L87 Difference]: Start difference. First operand 46483 states and 59530 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)