/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-c90d42b
[2020-09-25 01:00:25,878 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 01:00:25,883 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 01:00:25,927 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 01:00:25,928 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 01:00:25,935 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 01:00:25,938 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-09-25 01:00:25,953 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 01:00:25,956 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 01:00:25,958 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 01:00:25,960 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 01:00:25,961 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 01:00:25,962 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 01:00:25,971 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 01:00:25,973 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 01:00:25,974 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 01:00:25,976 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 01:00:25,977 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 01:00:25,989 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-09-25 01:00:25,995 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 01:00:25,996 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-09-25 01:00:26,000 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 01:00:26,007 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2020-09-25 01:00:26,011 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 01:00:26,013 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 01:00:26,014 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 01:00:26,056 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 01:00:26,057 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 01:00:26,058 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 01:00:26,058 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 01:00:26,058 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 01:00:26,059 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 01:00:26,059 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 01:00:26,059 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 01:00:26,059 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 01:00:26,059 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 01:00:26,060 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 01:00:26,060 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 01:00:26,060 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 01:00:26,060 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 01:00:26,060 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 01:00:26,061 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 01:00:26,061 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 01:00:26,061 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 01:00:26,061 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 01:00:26,062 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 01:00:26,062 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 01:00:26,062 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 01:00:26,062 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 01:00:26,062 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 01:00:26,063 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 01:00:26,063 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 01:00:26,063 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 01:00:26,063 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 01:00:26,063 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 01:00:26,064 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true;
[2020-09-25 01:00:26,530 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 01:00:26,557 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 01:00:26,563 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 01:00:26,566 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 01:00:26,566 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 01:00:26,568 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c
[2020-09-25 01:00:26,657 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb16c5824/10ba1d44290144c3b77d9ded4a323568/FLAG8a79f4a43
[2020-09-25 01:00:27,330 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 01:00:27,331 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label39.c
[2020-09-25 01:00:27,345 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb16c5824/10ba1d44290144c3b77d9ded4a323568/FLAG8a79f4a43
[2020-09-25 01:00:27,584 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb16c5824/10ba1d44290144c3b77d9ded4a323568
[2020-09-25 01:00:27,599 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 01:00:27,606 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 01:00:27,610 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 01:00:27,611 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 01:00:27,615 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 01:00:27,616 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:00:27" (1/1) ...
[2020-09-25 01:00:27,621 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:27, skipping insertion in model container
[2020-09-25 01:00:27,621 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:00:27" (1/1) ...
[2020-09-25 01:00:27,631 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 01:00:27,710 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 01:00:28,192 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 01:00:28,199 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 01:00:28,427 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 01:00:28,446 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 01:00:28,447 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28 WrapperNode
[2020-09-25 01:00:28,447 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 01:00:28,448 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 01:00:28,448 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 01:00:28,448 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 01:00:28,462 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,463 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,495 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,496 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,539 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,567 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,577 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (1/1) ...
[2020-09-25 01:00:28,585 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 01:00:28,586 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 01:00:28,586 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 01:00:28,587 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 01:00:28,588 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (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 01:00:28,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 01:00:28,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 01:00:28,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-25 01:00:28,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 01:00:28,683 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-25 01:00:28,683 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 01:00:28,684 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 01:00:28,684 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-25 01:00:28,684 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 01:00:28,684 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 01:00:28,684 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 01:00:30,106 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 01:00:30,107 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 01:00:30,117 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:00:30 BoogieIcfgContainer
[2020-09-25 01:00:30,117 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 01:00:30,119 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 01:00:30,119 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 01:00:30,124 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 01:00:30,124 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:00:27" (1/3) ...
[2020-09-25 01:00:30,125 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:00:30, skipping insertion in model container
[2020-09-25 01:00:30,126 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:00:28" (2/3) ...
[2020-09-25 01:00:30,126 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:00:30, skipping insertion in model container
[2020-09-25 01:00:30,126 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:00:30" (3/3) ...
[2020-09-25 01:00:30,128 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label39.c
[2020-09-25 01:00:30,143 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 01:00:30,155 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 01:00:30,182 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 01:00:30,231 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 01:00:30,232 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 01:00:30,232 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 01:00:30,232 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 01:00:30,232 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 01:00:30,233 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 01:00:30,233 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 01:00:30,233 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 01:00:30,283 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states.
[2020-09-25 01:00:30,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-25 01:00:30,324 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 01:00:30,325 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 01:00:30,326 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 01:00:30,335 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 01:00:30,335 INFO  L82        PathProgramCache]: Analyzing trace with hash -2068005297, now seen corresponding path program 1 times
[2020-09-25 01:00:30,347 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 01:00:30,347 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251981973]
[2020-09-25 01:00:30,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 01:00:30,694 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:30,803 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:31,205 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:31,649 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:32,036 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:33,524 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:33,819 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:35,706 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:35,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 169
[2020-09-25 01:00:35,707 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 01:00:35,707 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5002
[2020-09-25 01:00:35,710 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:35,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 01:00:35,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-25 01:00:35,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 147
[2020-09-25 01:00:35,711 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 01:00:35,974 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 01:00:35,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:36,001 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:36,034 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:36,035 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 01:00:36,035 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:00:36,035 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 47
[2020-09-25 01:00:36,036 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:36,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 01:00:36,036 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:00:36,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 01:00:36,038 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 01:00:36,159 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 01:00:36,161 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251981973]
[2020-09-25 01:00:36,163 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 01:00:36,163 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 01:00:36,165 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90377938]
[2020-09-25 01:00:36,175 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 01:00:36,176 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 01:00:36,198 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 01:00:36,199 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 01:00:36,202 INFO  L87              Difference]: Start difference. First operand 525 states. Second operand 5 states.
[2020-09-25 01:00:39,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 01:00:39,246 INFO  L93              Difference]: Finished difference Result 1360 states and 1895 transitions.
[2020-09-25 01:00:39,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 01:00:39,249 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 160
[2020-09-25 01:00:39,250 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 01:00:39,278 INFO  L225             Difference]: With dead ends: 1360
[2020-09-25 01:00:39,278 INFO  L226             Difference]: Without dead ends: 781
[2020-09-25 01:00:39,290 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 01:00:39,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 781 states.
[2020-09-25 01:00:39,404 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 746.
[2020-09-25 01:00:39,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 746 states.
[2020-09-25 01:00:39,411 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 914 transitions.
[2020-09-25 01:00:39,413 INFO  L78                 Accepts]: Start accepts. Automaton has 746 states and 914 transitions. Word has length 160
[2020-09-25 01:00:39,414 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 01:00:39,414 INFO  L479      AbstractCegarLoop]: Abstraction has 746 states and 914 transitions.
[2020-09-25 01:00:39,414 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 01:00:39,415 INFO  L276                IsEmpty]: Start isEmpty. Operand 746 states and 914 transitions.
[2020-09-25 01:00:39,421 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-25 01:00:39,421 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 01:00:39,421 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 01:00:39,422 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 01:00:39,422 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 01:00:39,423 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 01:00:39,423 INFO  L82        PathProgramCache]: Analyzing trace with hash -32611680, now seen corresponding path program 1 times
[2020-09-25 01:00:39,423 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 01:00:39,423 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37458673]
[2020-09-25 01:00:39,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 01:00:39,452 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:39,473 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:39,577 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:39,681 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:40,007 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:40,278 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:40,585 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:42,018 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:43,090 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:44,483 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:44,483 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-25 01:00:44,484 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 01:00:44,484 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5029
[2020-09-25 01:00:44,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:44,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 01:00:44,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 43
[2020-09-25 01:00:44,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 113
[2020-09-25 01:00:44,486 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 01:00:44,761 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 01:00:44,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:44,769 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:44,782 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:44,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 01:00:44,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:00:44,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 01:00:44,783 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:44,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 01:00:44,783 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:00:44,784 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 01:00:44,784 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 01:00:44,835 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-25 01:00:44,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:44,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:44,914 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:44,915 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-25 01:00:44,915 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:00:44,915 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 71
[2020-09-25 01:00:44,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:44,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 01:00:44,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:00:44,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 01:00:44,917 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 01:00:45,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 01:00:45,249 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37458673]
[2020-09-25 01:00:45,250 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 01:00:45,251 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-09-25 01:00:45,251 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702050584]
[2020-09-25 01:00:45,258 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 01:00:45,258 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 01:00:45,258 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 01:00:45,259 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2020-09-25 01:00:45,259 INFO  L87              Difference]: Start difference. First operand 746 states and 914 transitions. Second operand 9 states.
[2020-09-25 01:00:50,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 01:00:50,475 INFO  L93              Difference]: Finished difference Result 2190 states and 2898 transitions.
[2020-09-25 01:00:50,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-09-25 01:00:50,476 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 181
[2020-09-25 01:00:50,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 01:00:50,484 INFO  L225             Difference]: With dead ends: 2190
[2020-09-25 01:00:50,484 INFO  L226             Difference]: Without dead ends: 1030
[2020-09-25 01:00:50,489 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182
[2020-09-25 01:00:50,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1030 states.
[2020-09-25 01:00:50,536 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1003.
[2020-09-25 01:00:50,537 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1003 states.
[2020-09-25 01:00:50,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1169 transitions.
[2020-09-25 01:00:50,543 INFO  L78                 Accepts]: Start accepts. Automaton has 1003 states and 1169 transitions. Word has length 181
[2020-09-25 01:00:50,543 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 01:00:50,544 INFO  L479      AbstractCegarLoop]: Abstraction has 1003 states and 1169 transitions.
[2020-09-25 01:00:50,544 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 01:00:50,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 1003 states and 1169 transitions.
[2020-09-25 01:00:50,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 01:00:50,548 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 01:00:50,549 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 01:00:50,549 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 01:00:50,549 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 01:00:50,550 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 01:00:50,550 INFO  L82        PathProgramCache]: Analyzing trace with hash 1214079671, now seen corresponding path program 1 times
[2020-09-25 01:00:50,550 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 01:00:50,551 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40448835]
[2020-09-25 01:00:50,551 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 01:00:50,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:50,641 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:50,723 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:50,825 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:50,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:51,064 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:51,147 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:51,265 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:51,331 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:52,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:52,528 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:55,614 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:55,615 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 196
[2020-09-25 01:00:55,615 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 10
[2020-09-25 01:00:55,615 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5013
[2020-09-25 01:00:55,616 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:55,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 01:00:55,616 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 49
[2020-09-25 01:00:55,617 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 146
[2020-09-25 01:00:55,617 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 01:00:55,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 01:00:55,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:55,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:55,816 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:55,816 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 01:00:55,816 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:00:55,817 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 01:00:55,817 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:55,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 01:00:55,817 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:00:55,818 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 01:00:55,818 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:00:55,840 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-25 01:00:55,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:55,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:55,870 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:00:55,871 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-25 01:00:55,871 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:00:55,871 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 01:00:55,872 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:00:55,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 01:00:55,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:00:55,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 01:00:55,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:00:55,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 01:00:55,920 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40448835]
[2020-09-25 01:00:55,920 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 01:00:55,920 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 01:00:55,921 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260739450]
[2020-09-25 01:00:55,922 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 01:00:55,923 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 01:00:55,923 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 01:00:55,924 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 01:00:55,924 INFO  L87              Difference]: Start difference. First operand 1003 states and 1169 transitions. Second operand 5 states.
[2020-09-25 01:00:58,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 01:00:58,040 INFO  L93              Difference]: Finished difference Result 2649 states and 3191 transitions.
[2020-09-25 01:00:58,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-25 01:00:58,041 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 185
[2020-09-25 01:00:58,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 01:00:58,053 INFO  L225             Difference]: With dead ends: 2649
[2020-09-25 01:00:58,054 INFO  L226             Difference]: Without dead ends: 1513
[2020-09-25 01:00:58,058 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-25 01:00:58,061 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1513 states.
[2020-09-25 01:00:58,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1277.
[2020-09-25 01:00:58,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1277 states.
[2020-09-25 01:00:58,122 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1519 transitions.
[2020-09-25 01:00:58,123 INFO  L78                 Accepts]: Start accepts. Automaton has 1277 states and 1519 transitions. Word has length 185
[2020-09-25 01:00:58,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 01:00:58,129 INFO  L479      AbstractCegarLoop]: Abstraction has 1277 states and 1519 transitions.
[2020-09-25 01:00:58,130 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 01:00:58,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 1277 states and 1519 transitions.
[2020-09-25 01:00:58,138 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2020-09-25 01:00:58,138 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 01:00:58,138 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 01:00:58,139 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 01:00:58,139 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 01:00:58,140 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 01:00:58,140 INFO  L82        PathProgramCache]: Analyzing trace with hash -755339745, now seen corresponding path program 1 times
[2020-09-25 01:00:58,140 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 01:00:58,141 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180384078]
[2020-09-25 01:00:58,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 01:00:58,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:00:58,231 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:58,317 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:58,411 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:58,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:00:59,054 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:00,938 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:01,545 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:01,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:01,738 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:01,911 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:02,433 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:03,139 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:03,221 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:03,221 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 199
[2020-09-25 01:01:03,222 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 12
[2020-09-25 01:01:03,222 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5030
[2020-09-25 01:01:03,222 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:03,222 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 01:01:03,223 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 50
[2020-09-25 01:01:03,223 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 148
[2020-09-25 01:01:03,223 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 01:01:03,341 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 01:01:03,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:03,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:03,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:03,359 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 01:01:03,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:01:03,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 01:01:03,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:03,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 01:01:03,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:01:03,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 01:01:03,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:01:03,385 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-25 01:01:03,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:03,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:03,424 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:03,425 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 24
[2020-09-25 01:01:03,425 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:01:03,425 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 32
[2020-09-25 01:01:03,425 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:03,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 01:01:03,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:01:03,427 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 01:01:03,428 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 01:01:03,489 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 01:01:03,491 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180384078]
[2020-09-25 01:01:03,491 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 01:01:03,491 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 01:01:03,492 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204180389]
[2020-09-25 01:01:03,492 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 01:01:03,492 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 01:01:03,493 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 01:01:03,494 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 01:01:03,494 INFO  L87              Difference]: Start difference. First operand 1277 states and 1519 transitions. Second operand 5 states.
[2020-09-25 01:01:05,863 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 01:01:05,863 INFO  L93              Difference]: Finished difference Result 3205 states and 3935 transitions.
[2020-09-25 01:01:05,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-25 01:01:05,867 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 188
[2020-09-25 01:01:05,868 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 01:01:05,880 INFO  L225             Difference]: With dead ends: 3205
[2020-09-25 01:01:05,880 INFO  L226             Difference]: Without dead ends: 1952
[2020-09-25 01:01:05,885 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-25 01:01:05,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1952 states.
[2020-09-25 01:01:05,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1851.
[2020-09-25 01:01:05,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1851 states.
[2020-09-25 01:01:05,965 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2241 transitions.
[2020-09-25 01:01:05,965 INFO  L78                 Accepts]: Start accepts. Automaton has 1851 states and 2241 transitions. Word has length 188
[2020-09-25 01:01:05,966 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 01:01:05,966 INFO  L479      AbstractCegarLoop]: Abstraction has 1851 states and 2241 transitions.
[2020-09-25 01:01:05,966 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 01:01:05,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 1851 states and 2241 transitions.
[2020-09-25 01:01:05,978 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2020-09-25 01:01:05,979 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 01:01:05,979 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 01:01:05,979 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 01:01:05,980 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 01:01:05,980 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 01:01:05,980 INFO  L82        PathProgramCache]: Analyzing trace with hash 1232404641, now seen corresponding path program 1 times
[2020-09-25 01:01:05,980 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 01:01:05,981 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662618691]
[2020-09-25 01:01:05,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 01:01:06,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:06,058 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:06,116 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:06,200 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:06,549 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:09,107 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:09,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:09,286 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:09,439 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:10,470 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:10,628 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:11,044 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 231
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 10
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 01:01:11,045 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 83
[2020-09-25 01:01:11,046 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 65
[2020-09-25 01:01:11,046 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:01:11,714 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 01:01:11,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:11,721 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:11,732 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:11,733 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 01:01:11,733 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:01:11,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 01:01:11,734 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:11,734 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 01:01:11,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:01:11,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 01:01:11,738 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 01:01:11,779 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-25 01:01:11,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:11,783 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:11,793 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:11,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-25 01:01:11,793 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 01:01:11,794 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:01:11,798 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2020-09-25 01:01:11,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 01:01:11,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 01:01:11,871 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 01:01:11,871 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 29
[2020-09-25 01:01:11,871 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 01:01:11,871 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 67
[2020-09-25 01:01:11,872 FATAL L256   erpolLogProxyWrapper]: Heuristic: DEEPEST
[2020-09-25 01:01:11,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 01:01:11,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 01:01:11,872 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 01:01:11,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 01:01:12,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2020-09-25 01:01:12,113 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662618691]
[2020-09-25 01:01:12,114 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 01:01:12,114 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2020-09-25 01:01:12,114 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896403458]
[2020-09-25 01:01:12,114 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-09-25 01:01:12,115 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 01:01:12,115 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-09-25 01:01:12,115 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2020-09-25 01:01:12,115 INFO  L87              Difference]: Start difference. First operand 1851 states and 2241 transitions. Second operand 16 states.
[2020-09-25 01:01:13,808 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-25 01:01:14,522 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90
[2020-09-25 01:01:14,959 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89
[2020-09-25 01:01:15,484 WARN  L193               SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88
[2020-09-25 01:01:15,782 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87
[2020-09-25 01:01:16,378 WARN  L193               SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85