/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:46:48,050 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:46:48,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:46:48,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:46:48,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:46:48,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:46:48,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:46:48,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:46:48,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:46:48,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:46:48,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:46:48,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:46:48,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:46:48,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:46:48,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:46:48,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:46:48,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:46:48,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:46:48,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:46:48,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:46:48,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:46:48,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:46:48,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:46:48,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:46:48,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:46:48,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:46:48,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:46:48,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:46:48,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:46:48,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:46:48,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:46:48,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:46:48,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:46:48,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:46:48,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:46:48,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:46:48,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:46:48,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:46:48,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:46:48,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:46:48,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:46:48,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 07:46:48,146 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 07:46:48,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:46:48,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:46:48,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 07:46:48,148 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 07:46:48,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:46:48,148 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 07:46:48,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:46:48,149 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 07:46:48,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 07:46:48,150 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 07:46:48,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:46:48,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:46:48,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 07:46:48,154 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 07:46:48,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 07:46:48,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:46:48,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:46:48,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:46:48,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:46:48,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 07:46:48,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:46:48,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:46:48,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 07:46:48,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 07:46:48,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:46:48,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:46:48,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:46:48,683 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 07:46:48,683 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 07:46:48,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
[2020-09-25 07:46:48,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d79d98fd/358bb49c5b24459885da8831319a9fc6/FLAG32619a357
[2020-09-25 07:46:49,317 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 07:46:49,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_10x0-2.c
[2020-09-25 07:46:49,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d79d98fd/358bb49c5b24459885da8831319a9fc6/FLAG32619a357
[2020-09-25 07:46:49,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d79d98fd/358bb49c5b24459885da8831319a9fc6
[2020-09-25 07:46:49,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:46:49,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:46:49,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:46:49,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:46:49,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:46:49,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:49" (1/1) ...
[2020-09-25 07:46:49,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa107a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:49, skipping insertion in model container
[2020-09-25 07:46:49,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:46:49" (1/1) ...
[2020-09-25 07:46:49,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 07:46:49,731 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:46:49,970 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:46:49,976 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 07:46:49,993 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:46:50,007 INFO L208 MainTranslator]: Completed translation
[2020-09-25 07:46:50,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50 WrapperNode
[2020-09-25 07:46:50,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:46:50,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:46:50,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:46:50,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:46:50,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
[2020-09-25 07:46:50,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:46:50,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:46:50,040 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:46:50,041 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:46:50,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:46:50,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:46:50,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:46:50,201 INFO L138 BoogieDeclarations]: Found implementation of procedure sum
[2020-09-25 07:46:50,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:46:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:46:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure sum
[2020-09-25 07:46:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:46:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:46:50,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:46:50,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:46:50,411 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 07:46:50,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:50 BoogieIcfgContainer
[2020-09-25 07:46:50,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:46:50,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:46:50,417 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:46:50,422 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:46:50,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:46:49" (1/3) ...
[2020-09-25 07:46:50,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6e7e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:50, skipping insertion in model container
[2020-09-25 07:46:50,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:46:50" (2/3) ...
[2020-09-25 07:46:50,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6e7e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:46:50, skipping insertion in model container
[2020-09-25 07:46:50,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:46:50" (3/3) ...
[2020-09-25 07:46:50,426 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-2.c
[2020-09-25 07:46:50,439 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:46:50,449 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:46:50,483 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:46:50,551 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:46:50,551 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 07:46:50,551 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:46:50,552 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:46:50,552 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:46:50,552 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 07:46:50,552 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:46:50,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:46:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states.
[2020-09-25 07:46:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-09-25 07:46:50,591 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:50,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:50,593 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:50,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:50,602 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times
[2020-09-25 07:46:50,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:50,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988228035]
[2020-09-25 07:46:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:50,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:50,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:50,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 07:46:50,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:50,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217
[2020-09-25 07:46:50,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:50,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 07:46:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:50,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 07:46:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 07:46:51,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:51,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:46:51,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:51,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:51,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:51,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57
[2020-09-25 07:46:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 07:46:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 07:46:51,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 07:46:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:46:51,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988228035]
[2020-09-25 07:46:51,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:46:51,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 07:46:51,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319234867]
[2020-09-25 07:46:51,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 07:46:51,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:51,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 07:46:51,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:46:51,221 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states.
[2020-09-25 07:46:51,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:51,314 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions.
[2020-09-25 07:46:51,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 07:46:51,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-09-25 07:46:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:51,330 INFO L225 Difference]: With dead ends: 39
[2020-09-25 07:46:51,330 INFO L226 Difference]: Without dead ends: 25
[2020-09-25 07:46:51,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 07:46:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2020-09-25 07:46:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2020-09-25 07:46:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2020-09-25 07:46:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2020-09-25 07:46:51,390 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18
[2020-09-25 07:46:51,390 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:51,391 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2020-09-25 07:46:51,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 07:46:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2020-09-25 07:46:51,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-09-25 07:46:51,394 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:51,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:51,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:46:51,395 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:51,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:51,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times
[2020-09-25 07:46:51,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:51,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818750804]
[2020-09-25 07:46:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 07:46:51,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:51,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556
[2020-09-25 07:46:51,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:46:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:51,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 07:46:51,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:51,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:51,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:51,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:51,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:46:51,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:51,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:51,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:51,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:51,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:52,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59
[2020-09-25 07:46:52,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 07:46:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 07:46:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:52,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-09-25 07:46:52,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 07:46:52,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818750804]
[2020-09-25 07:46:52,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:52,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-25 07:46:52,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435541467]
[2020-09-25 07:46:52,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 07:46:52,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:52,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 07:46:52,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:46:52,174 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states.
[2020-09-25 07:46:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:52,266 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions.
[2020-09-25 07:46:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 07:46:52,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27
[2020-09-25 07:46:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:52,269 INFO L225 Difference]: With dead ends: 36
[2020-09-25 07:46:52,269 INFO L226 Difference]: Without dead ends: 30
[2020-09-25 07:46:52,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:46:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2020-09-25 07:46:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2020-09-25 07:46:52,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-09-25 07:46:52,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions.
[2020-09-25 07:46:52,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27
[2020-09-25 07:46:52,279 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:52,279 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions.
[2020-09-25 07:46:52,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 07:46:52,279 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions.
[2020-09-25 07:46:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-09-25 07:46:52,281 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:52,281 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:52,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:46:52,282 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:52,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:52,282 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times
[2020-09-25 07:46:52,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:52,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060293462]
[2020-09-25 07:46:52,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-25 07:46:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567
[2020-09-25 07:46:52,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:46:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:52,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:52,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:52,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 07:46:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:52,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:52,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:52,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:52,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:52,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:53,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:53,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-09-25 07:46:53,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:53,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 07:46:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30
[2020-09-25 07:46:53,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:53,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:53,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53
[2020-09-25 07:46:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:53,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:53,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:53,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:53,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:53,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:53,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:53,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-25 07:46:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:53,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:53,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-09-25 07:46:53,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060293462]
[2020-09-25 07:46:53,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:53,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 07:46:53,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218334806]
[2020-09-25 07:46:53,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 07:46:53,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:53,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 07:46:53,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-25 07:46:53,182 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states.
[2020-09-25 07:46:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:53,271 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions.
[2020-09-25 07:46:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 07:46:53,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36
[2020-09-25 07:46:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:53,274 INFO L225 Difference]: With dead ends: 41
[2020-09-25 07:46:53,274 INFO L226 Difference]: Without dead ends: 35
[2020-09-25 07:46:53,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:46:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2020-09-25 07:46:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2020-09-25 07:46:53,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states.
[2020-09-25 07:46:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions.
[2020-09-25 07:46:53,284 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36
[2020-09-25 07:46:53,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:53,284 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions.
[2020-09-25 07:46:53,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 07:46:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions.
[2020-09-25 07:46:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-09-25 07:46:53,287 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:53,287 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:53,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:46:53,287 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:53,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times
[2020-09-25 07:46:53,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:53,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247909640]
[2020-09-25 07:46:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:53,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:53,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60
[2020-09-25 07:46:54,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863
[2020-09-25 07:46:54,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 07:46:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-25 07:46:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:54,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:54,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:54,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:54,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155
[2020-09-25 07:46:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 07:46:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41
[2020-09-25 07:46:54,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:54,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116
[2020-09-25 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:54,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:54,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54
[2020-09-25 07:46:54,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:54,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:54,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:54,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:54,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:54,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-09-25 07:46:54,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:54,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:54,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:54,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:54,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2020-09-25 07:46:54,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247909640]
[2020-09-25 07:46:54,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:54,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 07:46:54,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635513301]
[2020-09-25 07:46:54,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 07:46:54,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:54,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 07:46:54,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:46:54,680 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 9 states.
[2020-09-25 07:46:54,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:54,799 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions.
[2020-09-25 07:46:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-25 07:46:54,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45
[2020-09-25 07:46:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:54,802 INFO L225 Difference]: With dead ends: 46
[2020-09-25 07:46:54,802 INFO L226 Difference]: Without dead ends: 40
[2020-09-25 07:46:54,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2020-09-25 07:46:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-09-25 07:46:54,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-09-25 07:46:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-25 07:46:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions.
[2020-09-25 07:46:54,812 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 45
[2020-09-25 07:46:54,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:54,813 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions.
[2020-09-25 07:46:54,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 07:46:54,813 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions.
[2020-09-25 07:46:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-09-25 07:46:54,814 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:54,815 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:54,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:46:54,815 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash -263249715, now seen corresponding path program 4 times
[2020-09-25 07:46:54,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:54,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112246997]
[2020-09-25 07:46:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:54,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:55,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:56,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:56,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-25 07:46:56,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:46:56,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2081
[2020-09-25 07:46:56,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:56,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 07:46:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:46:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-25 07:46:56,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:56,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:46:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:56,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:56,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:56,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:46:56,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:56,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:46:56,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:56,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:56,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:46:56,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:56,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:46:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:46:56,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:46:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:56,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:46:57,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234
[2020-09-25 07:46:57,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 07:46:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:46:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52
[2020-09-25 07:46:57,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:46:57,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180
[2020-09-25 07:46:57,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:46:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:46:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:46:57,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106
[2020-09-25 07:46:57,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:46:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:46:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:46:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55
[2020-09-25 07:46:57,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:46:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:46:57,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:46:57,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:46:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:57,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:46:57,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:46:57,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:46:57,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 07:46:57,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:46:57,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:46:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:46:57,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:46:57,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:46:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:46:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2020-09-25 07:46:57,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112246997]
[2020-09-25 07:46:57,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:46:57,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2020-09-25 07:46:57,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528483924]
[2020-09-25 07:46:57,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 07:46:57,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:46:57,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 07:46:57,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2020-09-25 07:46:57,734 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 10 states.
[2020-09-25 07:46:57,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:46:57,848 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions.
[2020-09-25 07:46:57,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-25 07:46:57,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54
[2020-09-25 07:46:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:46:57,851 INFO L225 Difference]: With dead ends: 51
[2020-09-25 07:46:57,851 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 07:46:57,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-25 07:46:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 07:46:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-09-25 07:46:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-09-25 07:46:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions.
[2020-09-25 07:46:57,860 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 54
[2020-09-25 07:46:57,861 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:46:57,861 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions.
[2020-09-25 07:46:57,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 07:46:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions.
[2020-09-25 07:46:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-09-25 07:46:57,863 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:46:57,863 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:46:57,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 07:46:57,864 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:46:57,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:46:57,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1884999187, now seen corresponding path program 5 times
[2020-09-25 07:46:57,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:46:57,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198725364]
[2020-09-25 07:46:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:46:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:46:57,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:46:58,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4145
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 07:47:02,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:02,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:02,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:02,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302
[2020-09-25 07:47:02,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 07:47:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:02,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-09-25 07:47:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:02,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267
[2020-09-25 07:47:02,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:02,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:02,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:02,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183
[2020-09-25 07:47:02,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:02,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:02,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:02,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:02,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:02,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:03,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:03,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116
[2020-09-25 07:47:03,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:03,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:03,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:03,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:03,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:03,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:03,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:03,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:03,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:03,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:03,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:03,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52
[2020-09-25 07:47:03,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:03,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:03,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:47:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:03,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:03,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:03,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:03,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-25 07:47:03,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:03,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:03,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 12 proven. 70 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2020-09-25 07:47:03,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198725364]
[2020-09-25 07:47:03,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:03,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 07:47:03,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160988502]
[2020-09-25 07:47:03,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 07:47:03,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:03,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 07:47:03,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2020-09-25 07:47:03,281 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 11 states.
[2020-09-25 07:47:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:03,465 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions.
[2020-09-25 07:47:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 07:47:03,466 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63
[2020-09-25 07:47:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:03,468 INFO L225 Difference]: With dead ends: 56
[2020-09-25 07:47:03,468 INFO L226 Difference]: Without dead ends: 50
[2020-09-25 07:47:03,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272
[2020-09-25 07:47:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2020-09-25 07:47:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2020-09-25 07:47:03,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2020-09-25 07:47:03,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions.
[2020-09-25 07:47:03,478 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63
[2020-09-25 07:47:03,478 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:03,478 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions.
[2020-09-25 07:47:03,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 07:47:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions.
[2020-09-25 07:47:03,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2020-09-25 07:47:03,480 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:03,480 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:03,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 07:47:03,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:03,481 INFO L82 PathProgramCache]: Analyzing trace with hash -441437769, now seen corresponding path program 6 times
[2020-09-25 07:47:03,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:03,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451393477]
[2020-09-25 07:47:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:03,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:07,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:07,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 07:47:07,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4310
[2020-09-25 07:47:07,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:07,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 07:47:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:07,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44
[2020-09-25 07:47:07,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:07,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:07,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:07,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:07,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:07,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:07,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:07,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:07,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:08,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363
[2020-09-25 07:47:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 07:47:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 07:47:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:08,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317
[2020-09-25 07:47:08,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:08,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:08,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:08,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:08,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:08,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209
[2020-09-25 07:47:08,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:08,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:08,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:08,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:09,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:09,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:09,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139
[2020-09-25 07:47:09,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:09,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:09,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:09,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:09,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:09,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:09,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93
[2020-09-25 07:47:09,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:09,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:09,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:09,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:09,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:09,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:09,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:09,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:09,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40
[2020-09-25 07:47:09,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:09,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:09,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:09,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:09,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:09,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 07:47:09,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:09,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 12 proven. 108 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2020-09-25 07:47:09,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451393477]
[2020-09-25 07:47:09,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:09,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2020-09-25 07:47:09,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352688922]
[2020-09-25 07:47:09,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 07:47:09,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:09,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 07:47:09,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2020-09-25 07:47:09,357 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 12 states.
[2020-09-25 07:47:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:09,515 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions.
[2020-09-25 07:47:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 07:47:09,516 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72
[2020-09-25 07:47:09,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:09,517 INFO L225 Difference]: With dead ends: 61
[2020-09-25 07:47:09,517 INFO L226 Difference]: Without dead ends: 55
[2020-09-25 07:47:09,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342
[2020-09-25 07:47:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2020-09-25 07:47:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2020-09-25 07:47:09,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2020-09-25 07:47:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions.
[2020-09-25 07:47:09,533 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72
[2020-09-25 07:47:09,534 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:09,534 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions.
[2020-09-25 07:47:09,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 07:47:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions.
[2020-09-25 07:47:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2020-09-25 07:47:09,538 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:09,539 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:09,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 07:47:09,539 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:09,540 INFO L82 PathProgramCache]: Analyzing trace with hash 999943849, now seen corresponding path program 7 times
[2020-09-25 07:47:09,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:09,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427688318]
[2020-09-25 07:47:09,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:09,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:09,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:14,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:14,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104
[2020-09-25 07:47:14,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:14,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004
[2020-09-25 07:47:14,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:14,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 07:47:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50
[2020-09-25 07:47:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:14,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:14,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:14,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:14,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:47:14,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:14,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:14,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:14,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:15,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:15,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:15,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:15,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461
[2020-09-25 07:47:15,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:15,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:15,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-25 07:47:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:15,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85
[2020-09-25 07:47:15,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:15,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:15,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:15,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:15,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330
[2020-09-25 07:47:15,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:15,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:15,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:15,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:15,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:15,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:15,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:15,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:15,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:15,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:15,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269
[2020-09-25 07:47:15,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:15,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:15,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:15,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:15,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:15,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:15,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:16,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:16,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:16,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:16,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197
[2020-09-25 07:47:16,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:16,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:16,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:16,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:16,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:16,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:16,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:16,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133
[2020-09-25 07:47:16,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:16,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:16,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:16,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:16,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:16,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:16,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:16,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80
[2020-09-25 07:47:16,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:16,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:16,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:16,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:16,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:16,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:16,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:16,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35
[2020-09-25 07:47:16,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:16,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:16,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:16,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:16,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:16,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 07:47:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:16,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 3 proven. 153 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2020-09-25 07:47:16,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427688318]
[2020-09-25 07:47:16,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:16,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-25 07:47:16,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394242113]
[2020-09-25 07:47:16,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 07:47:16,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:16,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 07:47:16,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182
[2020-09-25 07:47:16,489 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 14 states.
[2020-09-25 07:47:16,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:16,676 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions.
[2020-09-25 07:47:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 07:47:16,676 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81
[2020-09-25 07:47:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:16,678 INFO L225 Difference]: With dead ends: 66
[2020-09-25 07:47:16,678 INFO L226 Difference]: Without dead ends: 60
[2020-09-25 07:47:16,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=303, Unknown=0, NotChecked=0, Total=462
[2020-09-25 07:47:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-09-25 07:47:16,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2020-09-25 07:47:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states.
[2020-09-25 07:47:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions.
[2020-09-25 07:47:16,694 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 81
[2020-09-25 07:47:16,694 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:16,694 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions.
[2020-09-25 07:47:16,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-25 07:47:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions.
[2020-09-25 07:47:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2020-09-25 07:47:16,700 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:16,700 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:16,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 07:47:16,700 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:16,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:16,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1356134305, now seen corresponding path program 8 times
[2020-09-25 07:47:16,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:16,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140736937]
[2020-09-25 07:47:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:16,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:17,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:21,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:21,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115
[2020-09-25 07:47:21,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006
[2020-09-25 07:47:21,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:21,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 07:47:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:21,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-25 07:47:21,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:21,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:21,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:21,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:21,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:21,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:21,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:21,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:22,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-09-25 07:47:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:22,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96
[2020-09-25 07:47:22,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:22,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:22,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 07:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 07:47:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:22,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:22,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:23,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369
[2020-09-25 07:47:23,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:23,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:23,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:23,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272
[2020-09-25 07:47:23,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:23,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:23,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:23,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:23,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:23,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77
[2020-09-25 07:47:23,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:23,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:23,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:23,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:23,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41
[2020-09-25 07:47:23,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:23,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:23,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:23,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:23,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:23,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:23,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 07:47:23,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:23,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:23,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 49 proven. 174 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked.
[2020-09-25 07:47:24,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140736937]
[2020-09-25 07:47:24,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:24,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 07:47:24,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091084640]
[2020-09-25 07:47:24,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 07:47:24,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:24,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 07:47:24,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210
[2020-09-25 07:47:24,021 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 15 states.
[2020-09-25 07:47:24,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:24,161 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions.
[2020-09-25 07:47:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 07:47:24,162 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 90
[2020-09-25 07:47:24,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:24,163 INFO L225 Difference]: With dead ends: 71
[2020-09-25 07:47:24,163 INFO L226 Difference]: Without dead ends: 65
[2020-09-25 07:47:24,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552
[2020-09-25 07:47:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2020-09-25 07:47:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2020-09-25 07:47:24,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2020-09-25 07:47:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions.
[2020-09-25 07:47:24,175 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 90
[2020-09-25 07:47:24,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:24,175 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions.
[2020-09-25 07:47:24,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 07:47:24,177 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions.
[2020-09-25 07:47:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2020-09-25 07:47:24,179 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:24,180 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:24,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-25 07:47:24,180 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:24,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:24,180 INFO L82 PathProgramCache]: Analyzing trace with hash -928437697, now seen corresponding path program 9 times
[2020-09-25 07:47:24,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:24,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981052203]
[2020-09-25 07:47:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:24,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:29,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 07:47:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62
[2020-09-25 07:47:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:47:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:29,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:47:29,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:29,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:47:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:29,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:47:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:47:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:29,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-25 07:47:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:29,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:29,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:29,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111
[2020-09-25 07:47:29,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576
[2020-09-25 07:47:29,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:29,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-25 07:47:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 07:47:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107
[2020-09-25 07:47:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:29,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:29,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:30,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:30,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-25 07:47:30,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:30,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:30,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89
[2020-09-25 07:47:30,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:30,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343
[2020-09-25 07:47:30,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:30,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19
[2020-09-25 07:47:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:30,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86
[2020-09-25 07:47:30,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:30,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:30,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78
[2020-09-25 07:47:31,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297
[2020-09-25 07:47:31,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17
[2020-09-25 07:47:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 07:47:31,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 07:47:31,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67
[2020-09-25 07:47:31,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213
[2020-09-25 07:47:31,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 07:47:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64
[2020-09-25 07:47:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:31,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-25 07:47:31,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154
[2020-09-25 07:47:31,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 07:47:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 07:47:31,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:31,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 07:47:31,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-09-25 07:47:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:31,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 07:47:31,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 07:47:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 07:47:31,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-09-25 07:47:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32
[2020-09-25 07:47:31,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 07:47:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 07:47:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-25 07:47:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:47:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:47:31,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:47:31,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 07:47:31,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:47:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 07:47:31,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:47:31,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:47:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:47:31,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:47:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 07:47:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:47:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 12 proven. 254 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked.
[2020-09-25 07:47:31,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981052203]
[2020-09-25 07:47:31,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 07:47:31,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 07:47:31,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505748040]
[2020-09-25 07:47:31,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 07:47:31,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:47:31,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 07:47:31,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2020-09-25 07:47:31,878 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 15 states.
[2020-09-25 07:47:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:47:32,027 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions.
[2020-09-25 07:47:32,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 07:47:32,028 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 99
[2020-09-25 07:47:32,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:47:32,029 INFO L225 Difference]: With dead ends: 76
[2020-09-25 07:47:32,029 INFO L226 Difference]: Without dead ends: 70
[2020-09-25 07:47:32,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600
[2020-09-25 07:47:32,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2020-09-25 07:47:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70.
[2020-09-25 07:47:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-09-25 07:47:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions.
[2020-09-25 07:47:32,036 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 99
[2020-09-25 07:47:32,037 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:47:32,037 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions.
[2020-09-25 07:47:32,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 07:47:32,037 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions.
[2020-09-25 07:47:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2020-09-25 07:47:32,038 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:47:32,038 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:47:32,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-25 07:47:32,039 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:47:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:47:32,039 INFO L82 PathProgramCache]: Analyzing trace with hash -276966773, now seen corresponding path program 10 times
[2020-09-25 07:47:32,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:47:32,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438467996]
[2020-09-25 07:47:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:47:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 07:47:32,059 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 07:47:32,060 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 07:47:32,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-25 07:47:32,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:47:32 BoogieIcfgContainer
[2020-09-25 07:47:32,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 07:47:32,098 INFO L168 Benchmark]: Toolchain (without parser) took 42423.17 ms. Allocated memory was 137.4 MB in the beginning and 466.6 MB in the end (delta: 329.3 MB). Free memory was 100.6 MB in the beginning and 201.7 MB in the end (delta: -101.1 MB). Peak memory consumption was 228.2 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,099 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.67 ms. Allocated memory is still 137.4 MB. Free memory was 99.9 MB in the beginning and 90.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,100 INFO L168 Benchmark]: Boogie Preprocessor took 31.14 ms. Allocated memory is still 137.4 MB. Free memory was 90.7 MB in the beginning and 89.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,101 INFO L168 Benchmark]: RCFGBuilder took 375.86 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.3 MB in the beginning and 167.0 MB in the end (delta: -77.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,102 INFO L168 Benchmark]: TraceAbstraction took 41677.35 ms. Allocated memory was 199.8 MB in the beginning and 466.6 MB in the end (delta: 266.9 MB). Free memory was 166.3 MB in the beginning and 201.7 MB in the end (delta: -35.4 MB). Peak memory consumption was 231.5 MB. Max. memory is 7.1 GB.
[2020-09-25 07:47:32,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 324.67 ms. Allocated memory is still 137.4 MB. Free memory was 99.9 MB in the beginning and 90.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 31.14 ms. Allocated memory is still 137.4 MB. Free memory was 90.7 MB in the beginning and 89.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 375.86 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.3 MB in the beginning and 167.0 MB in the end (delta: -77.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 41677.35 ms. Allocated memory was 199.8 MB in the beginning and 466.6 MB in the end (delta: 266.9 MB). Free memory was 166.3 MB in the beginning and 201.7 MB in the end (delta: -35.4 MB). Peak memory consumption was 231.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L12] int a = 10;
[L13] int b = 0;
[L14] CALL, EXPR sum(a, b)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND FALSE !(n <= 0)
[L7] CALL, EXPR sum(n - 1, m + 1)
[L4] COND TRUE n <= 0
[L5] return m + n;
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L7] RET, EXPR sum(n - 1, m + 1)
[L7] return sum(n - 1, m + 1);
[L14] RET, EXPR sum(a, b)
[L14] int result = sum(a, b);
[L15] COND TRUE result == a + b
[L16] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.5s, OverallIterations: 11, TraceHistogramMax: 11, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 183 SDtfs, 427 SDslu, 782 SDs, 0 SdLazy, 384 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 39.4s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 103948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 461/1305 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...